0001437749-23-003778 | 10-K | XBRL Viewer | Lattice Semiconductor Corp

Supplemental Balance Sheet Disclosures [Text Block]

Note 4 - Balance Sheet Components

Accounts Receivable

Accounts receivable do not bear interest and are shown net of an allowance for expected lifetime credit losses, which reflects our best estimate of probable losses inherent in the accounts receivable balance. We determine this allowance through an assessment of known troubled accounts, analysis of our accounts receivable aging, historical experience, expectations for future economic conditions, management judgment, and other available evidence.

	*December 31,*		*January 1,*
(In thousands)	*2022*		*2022*
Accounts receivable	$	94,018	$	79,859
Less: Allowance for credit losses		—		—
Accounts receivable, net of allowance for credit losses	$	94,018	$	79,859

We had no material bad debt expense in fiscal 2022, 2021, or 2020.

Inventories

	*December 31,*		*January 1,*
(In thousands)	*2022*		*2022*
Work in progress	$	58,269	$	43,546
Finished goods		52,106		24,048
Total inventories, net	$	110,375	$	67,594

Accrued Liabilities

Included in Accrued liabilities in the Consolidated Balance Sheets are the following balances:

	*December 31,*		*January 1,*
(In thousands)	*2022*		*2022*
Contract liability under ASC 606	$	17,666	$	4,768
Liability for non-cancelable contracts		10,498		9,930
Current portion of operating lease liabilities		6,454		5,696
Liability for production materials		6,002		—
Other accrued liabilities		7,847		6,050
Total accrued liabilities	$	48,467	$	26,444

Cloud Based Computing Implementation Costs

Under the guidance in ASU 2018-15, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40), we are capitalizing the implementation costs for cloud computing arrangements, mainly for our integrated distributor accounting management systems. These cloud-based computing implementation costs are recorded in Prepaid expenses and other current assets and Other long-term assets on our Consolidated Balance Sheets. The following table summarizes activity during the periods presented:

(In thousands)
Cloud based computing implementation costs as of January 2, 2021	$	2,831
Costs capitalized		324
Amortization		(775	)
Cloud based computing implementation costs as of January 1, 2022	$	2,380
Costs capitalized		63
Amortization		(841	)
Cloud based computing implementation costs as of December 31, 2022	$	1,602

Note 11 - Stock-Based Compensation Plans - Share-based Payment Award Stock Options Valuation Assumptions (Details) - Employee Stock Purchase Plan [Member]	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Weighted average expected volatility	60.30%	39.90%	48.20%
Weighted average risk-free interest rate	3.74%	0.07%	0.89%
Expected term (in months) (Year)	6 years	6 years	6 years

Note 9 - Restructuring (Details Textual) - USD ($) $ in Thousands	12 Months Ended				67 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021	Jan. 02, 2021	Dec. 31, 2022
Restructuring Charges, Total	$ 2,551	$ 940	$ 3,937
Operating Lease, Impairment Loss	1,149	0	0
Q2 2019 Sales Plan [Member]
Restructuring and Related Cost, Incurred Cost	1,000
Restructuring Charges, Total	100			$ 0
Restructuring and Related Cost, Cost Incurred to Date	3,100				$ 3,100
Q1 2020 Plan [Member]
Restructuring and Related Cost, Incurred Cost	100
Restructuring and Related Cost, Cost Incurred to Date	2,100				2,100
Q1 2020 Plan [Member] \| Minimum [Member]
Restructuring Charges, Total	200
Q1 2020 Plan [Member] \| Maximum [Member]
Restructuring Charges, Total	2,000
June 2017 Plan [Member]
Restructuring and Related Cost, Incurred Cost	1,600	$ 700	$ 1,900		$ 23,300
June 2017 Plan [Member] \| San Jose [Member]
Operating Lease, Impairment Loss	$ 1,100

Note 3 - Revenue From Contracts With Customers (Tables)

12 Months Ended

Dec. 31, 2022

Disaggregation of Revenue [Table Text Block]

	*Year Ended*
*Revenue by Channel*	*December 31,*				*January 1,*				*January 2,*
(In thousands)	*2022*				*2022*				*2021*
Product revenue - Distributors	$	591,229	89	%	$	449,650	87	%	$	339,100	83	%
Product revenue - Direct		51,988	8	%		45,202	9	%		49,402	12	%
Licensing and services		17,139	3	%		20,475	4	%		19,618	5	%
Total revenue	$	660,356	100	%	$	515,327	100	%	$	408,120	100	%

*Revenue by Geographical Market*
(In thousands)
United States	$	94,972	14	%	$	60,176	12	%	$	43,945	11	%
Other Americas		5,288	1	%		20,694	4	%		18,192	4	%
Americas		100,260	15	%		80,870	16	%		62,137	15	%
China		296,917	45	%		281,237	55	%		213,714	52	%
Japan		90,902	14	%		47,915	9	%		25,435	6	%
Other Asia		77,085	12	%		55,416	10	%		66,034	17	%
Asia		464,904	71	%		384,568	74	%		305,183	75	%
Europe		95,192	14	%		49,889	10	%		40,800	10	%
Total revenue	$	660,356	100	%	$	515,327	100	%	$	408,120	100	%

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

(In thousands)
Contract assets as of January 2, 2021	$	5,611
Revenues recorded during the period		15,587
Transferred to Accounts receivable or collected		(15,526	)
Contract assets as of January 1, 2022	$	5,672
Revenues recorded during the period		15,848
Transferred to Accounts receivable or collected		(14,173	)
Contract assets as of December 31, 2022	$	7,347

(In thousands)
Contract liabilities as of January 2, 2021	$	3,068
Accruals for estimated future stock rotation and scrap returns		4,613
Less: Release of accruals for recognized stock rotation and scrap returns		(2,913	)
Contract liabilities as of January 1, 2022	$	4,768
Prepaid customer deposit		12,811
Accruals for estimated future stock rotation and scrap returns		6,142
Less: Release of accruals for recognized stock rotation and scrap returns		(6,055	)
Contract liabilities as of December 31, 2022	$	17,666

Note 6 - Business Combination and Goodwill (Details Textual) - USD ($) $ in Thousands		12 Months Ended
	Nov. 12, 2011	Dec. 31, 2022	Jan. 01, 2022	Nov. 12, 2021	Nov. 11, 2011
Goodwill, Ending Balance		$ 315,358	$ 315,358		$ 267,500
Goodwill, Impairment Loss		0
Mirametrix [Member]
Business Acquisition, Percentage of Voting Interests Acquired				100.00%
Payments to Acquire Businesses, Gross	$ 68,500
Business Combination, Contingent Consideration, Liability, Total	0
Goodwill, Ending Balance	$ 47,800	$ 47,844

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References + Details

Note 14 - Employee Benefit Plans

12 Months Ended

Dec. 31, 2022

Compensation and Employee Benefit Plans [Text Block]

Note 14 - Employee Benefit Plans

Qualified Investment Plan

In 1990, we adopted a 401(k) tax-deferred savings plan, which provides all employees in the United States who meet certain eligibility requirements with an opportunity to accumulate funds for retirement. Participants may contribute up to the amount allowable as a deduction for federal income tax purposes. The plan does not allow investments in the Company's common stock. The plan allows for the Company to make discretionary matching contributions in cash. We recorded matching contributions of approximately $2.8 million, $2.6 million, and $2.4 million in fiscal years 2022, 2021, and 2020, respectively.

Cash Incentive Plans

For 2022, 2021, and 2020, the Board of Directors of the Company, upon the recommendation of the Compensation Committee, approved the Cash Incentive Plan (the “Cash Plans”) for the respective fiscal year. The chief executive officer, other executive officers, and other members of senior management, including vice presidents and director-level employees, together with all other employees of the Company not on the Company's sales incentive plan are eligible to participate in the Cash Plans. Under the Cash Plans, individual cash incentive payments for the eligible employees will be based both on Company financial performance, as measured by achievement of operating income (before incentive plan accruals) and revenue goals within specified ranges established by the Compensation Committee, and Company performance, as measured by the achievement of personal management objectives. The Compensation Committee determines the performance of the chief executive officer, the chief financial officer and other participants based on the achievement of the management objectives established by the Compensation Committee during the first quarter of the respective fiscal year. We recorded approximately $25.2 million, $18.0 million, and $7.9 million of expense under the Cash Plans in fiscal 2022, 2021, and 2020, respectively.

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Cash flows from operating activities:
Net income	$ 178,882	$ 95,922	$ 47,392
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	29,323	24,429	25,140
Stock-based compensation expense	55,530	46,475	40,372
Amortization of right-of-use assets	6,512	6,587	5,960
Impairment of operating lease right-of-use asset	1,149	0	0
Other non-cash adjustments	642	(239)	144
Changes in assets and liabilities:
Accounts receivable, net	(14,159)	(12,013)	336
Inventories, net	(42,781)	(2,995)	(9,619)
Prepaid expenses and other assets	(6,276)	1,918	(6,441)
Accounts payable	7,439	7,046	(16,820)
Accrued liabilities	20,101	(2,855)	6,314
Accrued payroll obligations	8,903	9,692	4,624
Operating lease liabilities, current and long-term portions	(6,459)	(6,245)	(5,715)
Net cash provided by (used in) operating activities	238,806	167,722	91,687
Cash flows from investing activities:
Cash paid for business acquisition, net of cash acquired	0	(68,099)	0
Capital expenditures	(23,338)	(9,835)	(12,121)
Cash paid for software and intellectual property licenses	(11,594)	(11,862)	(8,747)
Net cash provided by (used in) investing activities	(34,932)	(89,796)	(20,868)
Cash flows from financing activities:
Restricted stock unit tax withholdings	(54,946)	(54,191)	(26,965)
Proceeds from issuance of common stock	7,159	8,827	10,103
Repurchase of common stock	(110,132)	(70,124)	(14,989)
Proceeds from long-term debt, net of issuance costs	148,597	0	50,000
Repayment of long-term debt	(178,750)	(13,125)	(26,250)
Net cash provided by (used in) financing activities	(188,072)	(128,613)	(8,101)
Effect of exchange rate change on cash	(1,650)	(75)	1,533
Net increase (decrease) in cash and cash equivalents	14,152	(50,762)	64,251
Beginning cash and cash equivalents	131,570	182,332	118,081
Ending cash and cash equivalents	145,722	131,570	182,332
Supplemental disclosure of cash flow information and non-cash investing and financing activities:
Interest paid	3,973	2,313	3,700
Operating lease payments	7,419	7,639	7,713
Income taxes paid, net of refunds	4,621	3,304	1,868
Accrued purchases of plant and equipment	1,357	1,360	975
Operating lease right-of-use assets obtained in exchange for lease obligations	$ 2,134	$ 8,134	$ 2,645

Note 13 - Income Taxes - Unrecognized Tax Benefits Excluding Amounts Pertaining To Examined Tax Returns Roll Forward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Balance	$ 56,231	$ 55,737	$ 56,962
Additions based on tax positions related to the current year	1,594	1,156	548
Additions based on tax positions of prior years	2,798	1,130	628
Reduction for tax positions of prior years			0
Reduction as a result of lapse of applicable statute of limitations	(1,586)	(2,718)	(2,401)
Additions due to acquisition		977
Settlements	(148)	(51)
Balance	$ 58,889	$ 56,231	$ 55,737

Note 13 - Income Taxes - Valuation Allowance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Balance	$ 200,438	$ 192,478	$ 198,499
Charged (Credit) to costs and expenses	(59,905)	7,960	(6,021)
Charged (credit) to other accounts	0	0	0
Balance	$ 140,533	$ 200,438	$ 192,478

Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Basis of Accounting, Policy [Policy Text Block]

The accompanying Consolidated Financial Statements have been prepared in accordance with U.S. Generally Accepted Accounting Principles ("U.S. GAAP") and pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"). They include the accounts of Lattice and its subsidiaries after the elimination of all intercompany balances and transactions.

Use of Estimates, Policy [Policy Text Block]

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and judgments affecting the amounts reported in our consolidated financial statements and the accompanying notes. We base our estimates and judgments on historical experience, knowledge of current conditions, and our beliefs of what could occur in the future considering available information. While we believe that our estimates, assumptions, and judgments are reasonable, they are based on information available when made, and because of the uncertainty inherent in these matters, the actual results that we experience may differ materially from these estimates under different assumptions or conditions. We evaluate our estimates and judgments on an ongoing basis.

Certain prior year balances have been reclassified to conform to the current year’s presentation.

Fiscal Period, Policy [Policy Text Block]

Fiscal Reporting Periods

We report based on a 52 or 53-week fiscal year ending on the Saturday closest to December 31. Our fiscal 2022 was a 52-week year that ended on December 31, 2022. Our fiscal 2021 was a 52-week year that ended on January 1, 2022, and our fiscal 2020 was a 53-week year that ended on January 2, 2021. All references to quarterly or annual financial results are references to the results for the relevant fiscal period.

Concentration Risk, Credit Risk, Policy [Policy Text Block]

Concentrations of Risk

Potential exposure to concentrations of risk may impact revenue, accounts receivable, and supply of wafers for our new products.

Distributors have historically accounted for a significant portion of our total revenue. Our two largest distributor groups, the Weikeng Group ("Weikeng") and Arrow Electronics, Inc. ("Arrow"), each account for more than 10% of our total revenue and our net accounts receivable. Revenue attributable to distributors as a percentage of total revenue is presented in the following table:

	*Year Ended*
	*December 31,*			*January 1,*			*January 2,*
	*2022*			*2022*			*2021*
Weikeng Group		30	%		37	%		35	%
Arrow Electronics Inc.		28			27			25
Other distributors		31			23			23
Revenue attributable to distributors		89	%		87	%		83	%

At December 31, 2022 and January 1, 2022, Weikeng accounted for approximately 47% and 59%, respectively, and Arrow accounted for approximately 27% and 28%, respectively, of net accounts receivable.

Concentration of credit risk with respect to accounts receivable is mitigated by our credit and collection process including active management of collections, credit limits, routine credit evaluations for essentially all customers, and secure transactions with letters of credit or advance payments where appropriate. We regularly review our allowance for doubtful accounts and the aging of our accounts receivable.

We rely on a limited number of foundries for our wafer purchases. We seek to mitigate the concentration of supply risk by establishing, maintaining and managing multiple foundry relationships; however, certain of our products are sourced from a single foundry and changing from one foundry to another can have a significant cost, or create delays in production or shipments, among other factors.

Cash and Cash Equivalents, Policy [Policy Text Block]

Cash and Cash Equivalents

We consider all investments that are readily convertible into cash and that have original maturities of three months or less to be cash equivalents. Cash equivalents consist primarily of highly liquid investments in time deposits or money market accounts and are carried at cost, which approximates fair value. Deposits with financial institutions at times exceed Federal Deposit Insurance Corporation insurance limits.

Foreign Currency Transactions and Translations Policy [Policy Text Block]

Foreign Exchange and Translation of Foreign Currencies

While our revenues and the majority of our expenses are denominated in U.S. dollars, we also have international subsidiaries and branch operations that conduct some transactions in currencies that differ from the functional currency of that entity. Gains or losses from foreign exchange rate fluctuations on balances denominated in currencies that differ from the functional currencies are reflected in Other expense, net.

We translate accounts denominated in foreign currencies in accordance with ASC 830, “Foreign Currency Matters,” using the current rate method under which asset and liability accounts are translated at the current rate, while stockholders' equity accounts are translated at the appropriate historical rates, and revenue and expense accounts are translated at average monthly exchange rates. Translation adjustments related to the consolidation of foreign subsidiary financial statements are reflected in Accumulated other comprehensive loss in Stockholders' equity (See our Consolidated Statements of Stockholders' Equity).

Revenue from Contract with Customer [Policy Text Block]

Revenue Recognition

Under the terms of ASC 606, "Revenue from Contracts with Customers", we recognize revenue when we satisfy performance obligations as evidenced by the transfer of control of our products or services to customers. For sales to distributors, we have concluded that our contracts are with the distributor, rather than with the distributor’s end customer, as we hold a contract bearing enforceable rights and obligations only with the distributor. Our revenue is derived primarily from sales of silicon-based products, with additional revenue from sales of silicon-enabling products. We consider customer purchase orders, which in some cases are governed by master sales agreements, to be the contracts with a customer. For each contract, we consider our promise to transfer each distinct product to be the identified performance obligations. Revenue for product sales is recognized at the time of product shipment, as determined by the agreed upon contract shipping terms.

Our Licensing and services revenue is comprised of revenue from our IP core licensing activity, patent monetization activities, design services, and royalty and adopter fee revenue from our standards activities. These activities are complementary to our product sales and help us to monetize our IP associated with our technology and standards. We consider licensing arrangements with our customers and agreements with the standards consortia of which we are a member to be the contract. For each contract, we consider the promise to deliver a license that grants the customer the right to use the IP, as well as any professional services provided under the contract, as distinct performance obligations. We recognize license revenue at the point in time that control of the license transfers to the customer, which is generally upon delivery, or as usage occurs.

We measure revenue based on the amount of consideration we expect to be entitled to in exchange for products or services. Variable consideration is estimated and reflected as an adjustment to the transaction price. We determine variable consideration, which consists primarily of various sales price concessions, by estimating the most likely amount of consideration we expect to receive from the customer based on an analysis of historical rebate claims over a period of time considered adequate to account for current pricing and business trends. Sales rebates earned by customers are offset against their receivable balances. Rebates earned by customers when they do not have outstanding receivable balances are recorded within Accrued liabilities. Licensing and services revenue, which includes HDMI and MHL standards revenue, as well as certain IP licenses, includes variable consideration in the form of usage-based royalties.

We generally provide an assurance warranty that our products will substantially conform to the published specifications for twelve months from the date of shipment. In some cases, the warranty period may be longer than twelve months. We do not separately price or sell the assurance warranty. Our liability is limited to either a credit equal to the purchase price or replacement of the defective part. Under the practical expedient provided by ASC 340, we generally expense sales commissions when incurred because the amortization period would be less than one year. We record these costs within Selling, general, and administrative expenses. Substantially all of our performance obligations are satisfied within twelve months.

Inventory, Policy [Policy Text Block]

Inventories and Cost of Revenue

Inventories are stated at the lower of actual cost (determined using the first-in, first-out method) or net realizable value. We review and set standard costs quarterly to approximate current actual manufacturing costs. Our manufacturing overhead standards for product costs are calculated assuming full absorption of actual spending over actual costs. The valuation of inventory requires us to estimate excess or obsolete inventory. Material assumptions we use to estimate necessary inventory carrying value adjustments can be unique to each product and are based on specific facts and circumstances. In determining provisions for excess or obsolete products, we consider assumptions such as changes in business and economic conditions, projected customer demand for our products, and changes in technology or customer requirements. The creation of such provisions results in a write-down of inventory to net realizable value and a charge to Cost of revenue. Lower of cost or net realizable value is based on assumptions such as recent historical sales activity and selling prices, as well as estimates of future sales activity and selling prices. Shipping and handling costs are included in Cost of revenue in our Consolidated Statements of Operations.

Property, Plant and Equipment, Policy [Policy Text Block]

Property and Equipment

Property and equipment are stated at cost. Depreciation and amortization are computed using the straight-line method over the estimated useful lives of the related assets, generally three to five years for equipment and software, and one to three years for tooling. Leasehold improvements are amortized over the shorter of the non-cancelable lease term or the estimated useful life of the assets. We capitalize costs for the fabrication of masks used by our foundry partners to manufacture our products. The capitalized mask costs begin depreciating to Cost of revenue once the products go into production, and depreciation is straight-lined over a three-year period, which is the expected useful life of the mask. Upon disposal of property and equipment, the accounts are relieved of the costs and related accumulated depreciation and amortization, and resulting gains or losses are reflected in the Consolidated Statements of Operations for recognized gains and losses. Repair and maintenance costs are expensed as incurred.

Business Combinations Policy [Policy Text Block]

Business Combinations

Business combinations are accounted for using the acquisition method of accounting, under which we allocate the purchase price paid for a company to identifiable assets acquired and liabilities assumed based on their estimated fair values at the date of acquisition. Goodwill is measured as the excess of purchase price over the fair value of identifiable assets acquired and liabilities assumed. Determining the fair value of identifiable tangible and intangible assets acquired and liabilities assumed requires management to make assumptions, estimates, and judgments that are based on all available information, including comparable market data and information obtained from our management and the management of the acquired companies. The estimation of the fair values of the intangible assets requires significant judgment and the use of valuation techniques including primarily the income approach. Consideration is given to all relevant factors that might affect the fair value such as estimates of future revenues and costs, present value factors, and the estimated useful lives of intangible assets. We expense acquisition-related costs in the period incurred.

Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block]

Impairment of Long-Lived Assets

Long-lived assets, which consist primarily of property and equipment, amortizable intangible assets, and right-of-use assets, are carried on our financial statements based on their cost less accumulated depreciation or amortization. We monitor the carrying value of our long-lived assets for potential impairment and test the recoverability of such assets whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable. These events or changes in circumstances, including management decisions pertaining to such assets, are referred to as impairment indicators. If an impairment indicator occurs, we perform a test of recoverability by comparing the carrying value of the asset group to its undiscounted expected future cash flows. If the carrying values are in excess of undiscounted expected future cash flows, we measure any impairment by comparing the fair value of the asset group to its carrying value. Fair value is generally determined by considering (i) internally developed discounted projected cash flow analysis of the asset group; (ii) actual third-party valuations; and/or (iii) information available regarding the current market for similar asset groups. If the fair value of the asset group is determined to be less than the carrying amount of the asset group, an impairment in the amount of the difference is recorded in the period that the impairment indicator occurs and is included in our Consolidated Statements of Operations. Estimating future cash flows requires significant judgment and projections may vary from the cash flows eventually realized, which could impact our ability to accurately assess whether an asset has been impaired.

Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]

Valuation of Goodwill

Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Goodwill is not amortized, but is instead tested for impairment annually during the fourth quarter and whenever events or changes in circumstances indicate the carrying value of goodwill may not be recoverable. When evaluating whether goodwill is impaired, we make a qualitative assessment to determine if it is more likely than not that the reporting unit's fair value is less than the carrying amount. If the qualitative assessment determines that it is more likely than not that the fair value is less than the carrying amount, the fair value of the reporting unit is compared with its carrying value (including goodwill). If the fair value of the reporting unit is less than its carrying value, then goodwill impairment exists for the reporting unit. The impairment loss, if any, is recognized for the amount by which the carrying value exceeds the fair value. If the fair value of the reporting unit exceeds its carrying value, no further impairment analysis is needed. For purposes of testing goodwill for impairment, we currently operate as a single reporting unit.

Lessee, Leases [Policy Text Block]

Leases

We account for leases under the terms of ASC 842, "Leases," which requires lessees to record assets and liabilities on the balance sheet for all leases with terms longer than 12 months. Upon adoption, we elected the "package of practical expedients" that would allow us to carryforward our historical lease classifications, not reassess historical contracts to determine if they contain leases, and not reassess the initial direct costs for any existing leases. We also elected the practical expedient to not separate lease and non-lease components, which we applied to all asset classes. Concurrent with our adoption of Topic 842, we early adopted ASU 2019-01, Leases (Topic 842): Codification Improvements, which granted disclosure relief for interim periods during the year in which a company adopted Topic 842.

Right-of-use ("ROU") assets represent our right to use an underlying asset for the lease term, and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized on the commencement date of the lease based on the present value of lease payments over the lease term. As most of our leases do not provide an implicit rate, we determine the present value of lease payments using an incremental borrowing rate based on information from our commercial bank for an equivalent borrowing and term in the respective region as of the lease commencement date. At inception, we determine if an arrangement is a lease, if it includes options to extend or terminate the lease, and if it is reasonably certain that we will exercise the options. Lease cost, representing lease payments over the term of the lease and any capitalizable direct costs less any incentives received, is recognized on a straight-line basis over the lease term as lease expense. We have operating leases for corporate offices, sales offices, research and development facilities, storage facilities, and a data center.

The exercise of lease renewal options is at our sole discretion. When deemed reasonably certain of exercise, the renewal options are included in the determination of the lease term and lease payment obligation, respectively. For our leases that contain variable lease payments, residual value guarantees, or restrictive covenants, we have concluded that these inputs are not significant to the determination of the ROU asset and lease liability.

Research and Development Expense, Policy [Policy Text Block]

Research and Development

Research and development expenses include costs for compensation and benefits, engineering wafers, depreciation, licenses, and outside engineering services. These expenditures are for the design of new products, intellectual property cores, processes, packaging, and software solutions. Research and development costs are generally expensed as incurred, with certain licensed technology agreements capitalized as intangible assets and amortized to Research and development expense over their estimated useful lives.

Costs Associated with Exit or Disposal Activities or Restructurings, Policy [Policy Text Block]

Restructuring Charges

Expenses associated with exit or disposal activities are recognized when incurred under ASC 420, “Exit or Disposal Cost Obligations,” for everything except severance expenses and vacated leased facilities. Because we have a history of paying severance benefits, the cost of severance benefits associated with a restructuring plan is recorded when such costs are probable and the amount can be reasonably estimated in accordance with ASC 712, “Compensation - Nonretirement Postemployment Benefits.” When leased facilities are vacated, the amount of any ROU asset impairment is calculated in accordance with ASC 360, "Property, Plant, and Equipment" and recorded as a part of restructuring charges. Expenses from other exit or disposal activities, including the cancellation of software contracts and engineering tools or the abandonment of long-lived assets, is recorded as a part of Restructuring charges.

Income Tax, Policy [Policy Text Block]

Accounting for Income Taxes

We are required to estimate our provision for income taxes and amounts ultimately payable or recoverable in numerous tax jurisdictions around the world. These estimates involve significant judgment and interpretations of regulations and are inherently complex. Resolution of income tax treatments in individual jurisdictions may not be known for many years after completion of the applicable year. Deferred tax assets and liabilities are recognized for the expected tax consequences of temporary differences between the tax bases of assets and liabilities and their reported amounts in the financial statements using enacted tax rates and laws that will be in effect when the difference is expected to reverse. Valuation allowances are provided to reduce deferred tax assets to an amount that in management’s judgment is more-likely-than-not to be recoverable against future taxable income. The determination of a valuation allowance and when it should be released requires complex judgment.

In assessing the ability to realize deferred tax assets, we evaluate both positive and negative evidence that may exist and consider whether it is more-likely-than-not that some portion or all of the deferred tax assets will be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Any adjustment to the net deferred tax asset valuation allowance is recorded in the Consolidated Statements of Operations for the period that the adjustment is determined to be required.

Our income tax calculations are based on application of the respective U.S. federal, state or foreign tax law. Our tax filings, however, are subject to audit by the relevant tax authorities. Accordingly, we recognize tax liabilities based upon our estimate of whether, and the extent to which, additional taxes will be due when such estimates are more-likely-than-not to be sustained. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained. To the extent the final tax liabilities are different than the amounts originally accrued, the increases or decreases as well as any interest or penalties are recorded as income tax expense or benefit in the Consolidated Statements of Operations. We recognize the tax impact of including certain foreign earnings in U.S. taxable income as a period cost.

Share-Based Payment Arrangement [Policy Text Block]

Stock-Based Compensation

We estimate the fair value of share-based awards consistent with the provisions of ASC 718, “Compensation - Stock Compensation.” We value RSUs using the closing market price on the date of grant, and we value stock options using the Black-Scholes option pricing model. We have also granted RSUs with a market condition or a performance condition to certain executives. The terms of these grants, including achievement criteria and vesting schedules, are detailed under the heading "Market-Based and Performance-Based Awards — Grants" in "Note 11 - Stock-Based Compensation Plans." Our current practice is to issue new shares to satisfy option exercises. For RSUs, we issue new shares when awards vest and withhold a portion of these shares on behalf of employees to satisfy the minimum statutory tax withholding requirements.

Segment Reporting, Policy [Policy Text Block]

Segment Information

As of December 31, 2022, we had one operating segment: the core Lattice business, which includes silicon-based and silicon-enabling products, evaluation boards, development hardware, and related intellectual property licensing, services, and sales. Our chief operating decision maker is the Chief Executive Officer, who reviews operating results and financial information presented on a consolidated basis for purposes of making operating decisions, allocating resources, and evaluating financial performance.

Note 5 - Property and Equipment - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Jan. 01, 2022
Property and Equipment	$ 163,963	$ 147,999
Accumulated depreciation and amortization	(116,349)	(109,905)
Property and Equipment, Net	47,614	38,094
Property, Plant and Equipment, Net	47,614	38,094
UNITED STATES
Property and Equipment, Net	29,118	26,509
Property, Plant and Equipment, Net	29,118	26,509
TAIWAN
Property and Equipment, Net	10,732	6,555
Property, Plant and Equipment, Net	10,732	6,555
PHILIPPINES
Property and Equipment, Net	3,596	2,498
Property, Plant and Equipment, Net	3,596	2,498
CHINA
Property and Equipment, Net	2,229	1,643
Property, Plant and Equipment, Net	2,229	1,643
Other [Member]
Property and Equipment, Net	1,939	889
Property, Plant and Equipment, Net	1,939	889
Foreign Countries [Member]
Property and Equipment, Net	18,496	11,585
Property, Plant and Equipment, Net	18,496	11,585
Production Equipment and Software [Member]
Property and Equipment	149,787	133,039
Leasehold Improvements [Member]
Property and Equipment	12,416	12,960
Office Equipment [Member]
Property and Equipment	$ 1,760	$ 2,000

Note 11 - Stock-based Compensation - Share Based Compensation Performance Shares Award Outstanding (Details) - Performance Shares [Member] shares in Thousands	12 Months Ended
	Dec. 31, 2022 $ / shares shares
Balance, Shares (in shares) \| shares	1,246
Balance, Weighted average grant date fair value (in dollars per share) \| $ / shares	$ 41,230
Granted, Shares (in shares) \| shares	183
Granted, Weighted average grant date fair value (in dollars per share) \| $ / shares	$ 96,630
Effect of vesting multiplier, Shares (in shares) \| shares	642
Effect of vesting multiplier (in dollars per share) \| $ / shares
Vested, Shares (in shares) \| shares	(1,086)
Vested, Weighted average grant date fair value (in dollars per share) \| $ / shares	$ 20,380
Balance, Shares (in shares) \| shares	985
Balance, Weighted average grant date fair value (in dollars per share) \| $ / shares	$ 60,150

Note 10 - Leases (Tables)

12 Months Ended

Dec. 31, 2022

Lessee, Operating Lease Right-of-Use Assets and Liabilities [Table Text Block]

Operating lease right-of-use assets	(In thousands)
Balance as of January 1, 2022	$	23,818
Right-of-use assets obtained for new lease contracts during the period		2,134
Amortization of right-of-use assets during the period		(6,512	)
Impairment of right-of use asset during the period (recorded in Restructuring charges)		(1,149	)
Adjustments for present value and foreign currency effects		(701	)
Balance as of December 31, 2022	$	17,590

Operating lease liabilities	(In thousands)
Balance as of January 1, 2022	$	24,944
Lease liabilities incurred for new lease contracts during the period		2,134
Accretion of lease liabilities		1,087
Operating cash used by payments on lease liabilities		(7,419	)
Adjustments for present value and foreign currency effects		(674	)
Balance as of December 31, 2022		20,072
Less: Current portion of operating lease liabilities (included in Accrued liabilities)		(6,454	)
Long-term operating lease liabilities, net of current portion	$	13,618

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

Fiscal year	(In thousands)
2023		7,536
2024		6,042
2025		4,140
2026		2,522
2027		1,110
Thereafter		934
Total lease payments		22,284
Less: amount representing interest		(2,212	)
Total lease liabilities	$	20,072

Note 1 - Basis of Presentation and Significant Accounting Policies - Concentration of Risk By Risk (Details) - Revenue Benchmark [Member] - Customer Concentration Risk [Member]	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Weikeng Group [Member]
Revenue Percentage	30.00%	37.00%	35.00%
Arrow Electronics Inc [Member]
Revenue Percentage	28.00%	27.00%	25.00%
Other [Member]
Revenue Percentage	31.00%	23.00%	23.00%
Distributors [Member]
Revenue Percentage	89.00%	87.00%	83.00%

Note 3 - Revenue From Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Revenue	$ 660,356	$ 515,327	$ 408,120
Percentage of revenue	100.00%	100.00%	100.00%
UNITED STATES
Revenue	$ 94,972	$ 60,176	$ 43,945
Percentage of revenue	14.00%	12.00%	11.00%
Other Americas [Member]
Revenue	$ 5,288	$ 20,694	$ 18,192
Percentage of revenue	1.00%	4.00%	4.00%
Americas [Member]
Revenue	$ 100,260	$ 80,870	$ 62,137
Percentage of revenue	15.00%	16.00%	15.00%
CHINA
Revenue	$ 296,917	$ 281,237	$ 213,714
Percentage of revenue	45.00%	55.00%	52.00%
JAPAN
Revenue	$ 90,902	$ 47,915	$ 25,435
Percentage of revenue	14.00%	9.00%	6.00%
Other Asia [Member]
Revenue	$ 77,085	$ 55,416	$ 66,034
Percentage of revenue	12.00%	10.00%	17.00%
Asia [Member]
Revenue	$ 464,904	$ 384,568	$ 305,183
Percentage of revenue	71.00%	74.00%	75.00%
Europe [Member]
Revenue	$ 95,192	$ 49,889	$ 40,800
Percentage of revenue	14.00%	10.00%	10.00%
Product [Member] \| Sales Channel, Through Intermediary [Member]
Revenue	$ 591,229	$ 449,650	$ 339,100
Percentage of revenue	89.00%	87.00%	83.00%
Product [Member] \| Sales Channel, Directly to Consumer [Member]
Revenue	$ 51,988	$ 45,202	$ 49,402
Percentage of revenue	8.00%	9.00%	12.00%
License and Service [Member]
Revenue	$ 17,139	$ 20,475	$ 19,618
Percentage of revenue	3.00%	4.00%	5.00%

Note 3 - Revenue From Contracts With Customers

12 Months Ended

Dec. 31, 2022

Revenue from Contract with Customer [Text Block]

Note 3 - Revenue from Contracts with Customers

Disaggregation of Revenue

The following tables provide information about revenue from contracts with customers disaggregated by channel and by geographical market, based on ship-to location of the customer:

	*Year Ended*
*Revenue by Channel*	*December 31,*				*January 1,*				*January 2,*
(In thousands)	*2022*				*2022*				*2021*
Product revenue - Distributors	$	591,229	89	%	$	449,650	87	%	$	339,100	83	%
Product revenue - Direct		51,988	8	%		45,202	9	%		49,402	12	%
Licensing and services		17,139	3	%		20,475	4	%		19,618	5	%
Total revenue	$	660,356	100	%	$	515,327	100	%	$	408,120	100	%

*Revenue by Geographical Market*
(In thousands)
United States	$	94,972	14	%	$	60,176	12	%	$	43,945	11	%
Other Americas		5,288	1	%		20,694	4	%		18,192	4	%
Americas		100,260	15	%		80,870	16	%		62,137	15	%
China		296,917	45	%		281,237	55	%		213,714	52	%
Japan		90,902	14	%		47,915	9	%		25,435	6	%
Other Asia		77,085	12	%		55,416	10	%		66,034	17	%
Asia		464,904	71	%		384,568	74	%		305,183	75	%
Europe		95,192	14	%		49,889	10	%		40,800	10	%
Total revenue	$	660,356	100	%	$	515,327	100	%	$	408,120	100	%

Contract Balances

Our contract assets relate to our rights to consideration for licenses and royalties due to us as a member of the HDMI consortium, with collection dependent on events other than the passage of time, such as collection of licenses and royalties from customers by the HDMI licensing agent. The balance results primarily from the amount of estimated revenue related to HDMI that we have recognized to date, but which has not yet been collected by the agent. Contract assets are recorded in Prepaid expenses and other current assets in our Consolidated Balance Sheets.

The following table summarizes activity during the periods presented:

(In thousands)
Contract assets as of January 2, 2021	$	5,611
Revenues recorded during the period		15,587
Transferred to Accounts receivable or collected		(15,526	)
Contract assets as of January 1, 2022	$	5,672
Revenues recorded during the period		15,848
Transferred to Accounts receivable or collected		(14,173	)
Contract assets as of December 31, 2022	$	7,347

Contract liabilities are included in Accrued liabilities on our Consolidated Balance Sheets. The following table summarizes activity during the periods presented:

(In thousands)
Contract liabilities as of January 2, 2021	$	3,068
Accruals for estimated future stock rotation and scrap returns		4,613
Less: Release of accruals for recognized stock rotation and scrap returns		(2,913	)
Contract liabilities as of January 1, 2022	$	4,768
Prepaid customer deposit		12,811
Accruals for estimated future stock rotation and scrap returns		6,142
Less: Release of accruals for recognized stock rotation and scrap returns		(6,055	)
Contract liabilities as of December 31, 2022	$	17,666

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-URI https://asc.fasb.org/topic&trid=49130388

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130551-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Subparagraph (b)
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130550-203045

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Subparagraph (e)
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
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-Paragraph 12
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130554-203045

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130554-203045

Note 10 - Leases - Lease Balance Classifications Within the Consolidated Balance Sheets and Lease Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Balance	$ 23,818
Right-of-use assets obtained for new lease contracts during the period	2,134
Amortization of right-of-use assets during the period	(6,512)	$ (6,587)	$ (5,960)
Impairment of right-of use asset during the period (recorded in Restructuring charges)	(1,149)	0	0
Adjustments for present value and foreign currency effects	(701)
Balance	17,590	23,818
Balance	24,944
Lease liabilities incurred for new lease contracts during the period	2,134
Accretion of lease liabilities	1,087
Operating cash used by payments on lease liabilities	(7,419)	(7,639)	$ (7,713)
Adjustments for present value and foreign currency effects	(674)
Balance	20,072	24,944
Long-term operating lease liabilities, net of current portion	13,618	$ 19,248
Accounts Payable and Accrued Liabilities [Member]
Less: Current portion of operating lease liabilities (included in Accrued liabilities)	$ (6,454)

Note 11 - Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2022

Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

	Year Ended
	December 31,		January 1,		January 2,
(In thousands)	2022		2022		2021
Cost of revenue	$	3,674	$	3,049	$	3,179
Research and development		19,645		14,563		10,124
Selling, general, and administrative		32,211		28,863		27,069
Total stock-based compensation	$	55,530	$	46,475	$	40,372

Schedule of Share-based Payment Award, Stock Options and Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]

	Year Ended
	December 31,	January 1,	January 2,
	2022	2022	2021
Employee Stock Purchase Plan
Weighted average expected volatility	60.3%	39.9%	48.2%
Weighted average risk-free interest rate	3.74%	0.07%	0.89%
Expected term (in months)	6	6	6

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

(Shares and aggregate intrinsic value in thousands)	Shares			Weighted average exercise price		Weighted average remaining contractual term (years)		Aggregate Intrinsic Value
Balance, January 1, 2022		1,367		$	6.62
Granted		—			—
Exercised		(448	)		6.48
Forfeited or expired		(1	)		5.01
Balance, December 31, 2022		918		$	6.70
Vested and expected to vest at December 31, 2022		918		$	6.70		1.93	$	53,433
Exercisable, December 31, 2022		918		$	6.70		1.93	$	53,433

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

(Shares in thousands)	*Shares*			*Weighted average grant date fair value*
Balance, January 1, 2022		2,188		$	31.85
Granted		843			62.23
Vested		(1,132	)		24.34
Forfeited or expired		(78	)		41.21
Balance, December 31, 2022		1,821		$	50.18

Schedule of Share-based Payment Award, Restricted Stock Units, Valuation Assumptions [Table Text Block]

	Year Ended
	December 31,	January 1,	January 2,
	2022	2022	2021
Executive RSUs with a market condition or performance condition
Weighted average expected volatility	51.44%	50.37% to 52.11%	42.38%
Weighted average risk-free interest rate	1.67%	0.22% to 0.77%	1.40%
Expected term (years)	3.00	3.00 to 5.00	3.00

Share-Based Payment Arrangement, Performance Shares, Outstanding Activity [Table Text Block]

(Shares in thousands)	*Shares*			*Weighted average grant date fair value*
Balance, January 1, 2022		1,246		$	41.23
Granted		183			96.63
Effect of vesting multiplier		642
Vested		(1,086	)		20.38
Balance, December 31, 2022		985		$	60.15

Note 1 - Basis of Presentation and Significant Accounting Policies (Details Textual)	6 Months Ended	12 Months Ended
	Jul. 02, 2022	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Number of Operating Segments		1
Production Equipment and Software [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)		3 years
Production Equipment and Software [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)		5 years
Tools, Dies and Molds [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)		1 year
Tools, Dies and Molds [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)		3 years
Revenue Benchmark [Member] \| Sell-through Distributors Concentration Risk [Member]
Number of Distributors	2
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Weikeng Group [Member]
Concentration Risk, Percentage		30.00%	37.00%	35.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Arrow Electronics Inc [Member]
Concentration Risk, Percentage		28.00%	27.00%	25.00%
Accounts Receivable [Member] \| Sell-through Distributors Concentration Risk [Member] \| Large Distributor Two [Member]
Concentration Risk, Percentage			28.00%
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Weikeng Group [Member]
Concentration Risk, Percentage		47.00%	59.00%
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Arrow Electronics Inc [Member]
Concentration Risk, Percentage		27.00%

Note 13 - Income Taxes - Components of Income Tax Expense Benefit (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Federal	$ 748	$ 445	$ 54
State	265	45	68
Foreign	3,637	1,538	1,025
Current Income Tax Expense (Benefit), Total	4,650	2,028	1,147
Federal	0	0	0
State	0	0	0
Foreign	(1,420)	(324)	(83)
Deferred Income Tax Expense (Benefit), Total	(1,420)	(324)	(83)
Income tax expense	$ 3,230	$ 1,704	$ 1,064

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

Note 13 - Income Taxes - Effective Income Tax Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Statutory federal rate	21.00%	21.00%	21.00%
State taxes, net	(2.00%)	(4.00%)	(4.00%)
Federal tax credits	(1.00%)	(3.00%)	(3.00%)
Excess tax benefit from stock compensation		(8.00%)	(10.00%)
Foreign rate differential	(16.00%)	(14.00%)	(12.00%)
U.S. tax on foreign operations	33.00%	3.00%	15.00%
Foreign withholding taxes	1.00%	1.00%	3.00%
Capital loss expiration	1.00%	3.00%
Other deferred tax asset adjustment			3.00%
Valuation allowance	(33.00%)	8.00%	(13.00%)
Change in uncertain tax benefit accrual	(2.00%)	(5.00%)	2.00%
Effective income tax rate	2.00%	2.00%	2.00%

Note 7 - Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2022

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	*December 31, 2022*
(In thousands)	*Weighted Average Amortization Period (in years)*	*Gross*		*Accumulated Amortization*			*Intangible assets, net*
Existing technology	5.1	$	124,487	$	(113,157	)	$	11,330
Customer relationships	6.1		32,734		(24,509	)		8,225
Trade name / trademarks	10.0		1,500		(169	)		1,331
Licensed technology	6.3		6,671		(2,487	)		4,184
Total identified intangible assets		$	165,392	$	(140,322	)	$	25,070

	*January 1, 2022*
(In thousands)	*Weighted Average Amortization Period (in years)*	*Gross*		*Accumulated Amortization*			*Intangible assets, net*
Existing technology	5.1	$	124,487	$	(111,090	)	$	13,397
Customer relationships	6.1		32,734		(22,947	)		9,787
Trade name / trademarks	10.0		1,500		(19	)		1,481
Licensed technology	6.3		6,551		(1,434	)		5,117
Total identified intangible assets		$	165,272	$	(135,490	)	$	29,782

Finite-Lived Intangible Assets Amortization Expense [Table Text Block]

	Year Ended
	December 31,		January 1,		January 2,
(In thousands)	2022		2022		2021
Research and development	$	1,054	$	901	$	124
Amortization of acquired intangible assets		3,778		2,613		4,449
	$	4,832	$	3,514	$	4,573

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Fiscal year	(In thousands)
2023	$	4,522
2024		4,310
2025		4,263
2026		4,261
2027		4,197
Thereafter		3,517
Total	$	25,070

Note 15 - Contingencies (Details Textual) - Action in Oregon in Connection with Sale of Certain Products [Member] $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)
Minimum [Member]
Loss Contingency, Damages Sought, Value	$ 155
Maximum [Member]
Loss Contingency, Damages Sought, Value	$ 268

Note 8 - Long-term Debt (Details Textual) - USD ($) $ in Thousands				12 Months Ended
	Sep. 01, 2022	May 17, 2019	May 17, 2018	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Repayments of Long-Term Debt, Total				$ 178,750	$ 13,125	$ 26,250
The 2022 Credit Agreement [Member[ \| Other (Expense) Income, Net [Member]
Amortization of Debt Issuance Costs and Discounts, Total	$ 700
The 2022 Credit Agreement [Member[ \| Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity	350,000
Proceeds from Lines of Credit, Total	150,000
Debt Instrument, Fee Amount	1,400
Debt Issuance Costs, Gross	900
The 2022 Credit Agreement [Member[ \| Revolving Credit Facility [Member] \| Secured Term Loan [Member]
Repayments of Long-Term Debt, Total				28,800
Repayment of Long-term Debt, Discretionary				20,000
Debt Instrument, Periodic Payment, Total				$ 8,800
Credit Agreement, May 17, 2019 [Member] \| Term Loan [Member]
Repayments of Fees and Accrued Interest	1,900
Extinguishment of Debt and Accrued Interest, Amount	$ 150,500
Credit Agreement, May 17, 2019 [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility, Commitment Fee Percentage					0.20%
Credit Agreement, May 17, 2019 [Member] \| Revolving Credit Facility [Member] \| Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate		0.25%
Credit Agreement, May 17, 2019 [Member] \| Revolving Credit Facility [Member] \| Minimum [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate		1.25%
Credit Agreement, May 17, 2019 [Member] \| Revolving Credit Facility [Member] \| Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate			1.00%
Credit Agreement, May 17, 2019 [Member] \| Revolving Credit Facility [Member] \| Maximum [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate		2.00%

Note 5 - Property and Equipment

12 Months Ended

Dec. 31, 2022

Property, Plant and Equipment Disclosure [Text Block]

Note 5 - Property and Equipment

	*December 31,*			*January 1,*
(In thousands)	*2022*			*2022*
Production equipment and software	$	149,787		$	133,039
Leasehold improvements		12,416			12,960
Office furniture and equipment		1,760			2,000
		163,963			147,999
Accumulated depreciation and amortization		(116,349	)		(109,905	)
	$	47,614		$	38,094

For fiscal years 2022, 2021, and 2020 depreciation and amortization expense for property and equipment was $13.8 million, $12.0 million, and $11.8 million, respectively.

Property and Equipment – Geographic Information

Our Property and equipment, net by country at the end of each period was as follows:

	*December 31,*		*January 1,*
(In thousands)	*2022*		*2022*
United States	$	29,118	$	26,509

Taiwan		10,732		6,555
Philippines		3,596		2,498
China		2,229		1,643
Other		1,939		889
Total foreign property and equipment, net		18,496		11,585
Total property and equipment, net	$	47,614	$	38,094

Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balances (in shares) at Dec. 28, 2019	133,883,000
Balances at Dec. 28, 2019	$ 1,339	$ 762,213	$ (433,290)	$ (2,603)	$ 327,659
Net income	0	0	47,392	0	47,392
Other comprehensive income (loss)	0	0	0	855	855
Total comprehensive income					48,247
Common stock issued in connection with employee equity incentive plans, net of shares withheld for employee taxes (in shares)	2,738,000
Common stock issued in connection with employee equity incentive plans, net of shares withheld for employee taxes	$ 27	(16,889)	0	0	(16,862)
Stock-based compensation expense	$ 0	40,372	0	0	40,372
Repurchase of common stock (in shares)	(385,000)
Repurchase of common stock	$ (4)	(14,985)	0	0	(14,989)
Total comprehensive income					48,247
Balances (in shares) at Jan. 02, 2021	136,236,000
Balances at Jan. 02, 2021	$ 1,362	770,711	(385,898)	(1,748)	384,427
Net income	0	0	95,922	0	95,922
Other comprehensive income (loss)	0	0	0	297	297
Total comprehensive income					96,219
Common stock issued in connection with employee equity incentive plans, net of shares withheld for employee taxes (in shares)	2,270,000
Common stock issued in connection with employee equity incentive plans, net of shares withheld for employee taxes	$ 23	(45,387)	0	0	(45,364)
Stock-based compensation expense	$ 0	46,475	0	0	46,475
Repurchase of common stock (in shares)	(1,267,000)
Repurchase of common stock	$ (13)	(70,111)	0	0	(70,124)
Total comprehensive income					$ 96,219
Balances (in shares) at Jan. 01, 2022	137,239,000				137,239,000
Balances at Jan. 01, 2022	$ 1,372	701,688	(289,976)	(1,451)	$ 411,633
Net income	0	0	178,882	0	178,882
Other comprehensive income (loss)	0	0	0	(963)	(963)
Total comprehensive income					177,919
Common stock issued in connection with employee equity incentive plans, net of shares withheld for employee taxes (in shares)	1,812,000
Common stock issued in connection with employee equity incentive plans, net of shares withheld for employee taxes	$ 18	(47,806)	0	0	(47,788)
Stock-based compensation expense	$ 0	55,530	0	0	55,530
Repurchase of common stock (in shares)	(1,952,000)
Repurchase of common stock	$ (19)	(110,112)	0	0	(110,131)
Total comprehensive income					$ 177,919
Balances (in shares) at Dec. 31, 2022	137,099,000				137,099,000
Balances at Dec. 31, 2022	$ 1,371	$ 599,300	$ (111,094)	$ (2,414)	$ 487,163

Note 2 - Net Income Per Share - Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Net income	$ 178,882	$ 95,922	$ 47,392
Shares used in basic Net income per share (in shares)	137,321	136,619	135,220
Dilutive effect of stock options, RSUs, ESPP shares, and equity awards with a market condition or performance condition (in shares)	3,346	5,524	6,056
Shares used in diluted Net income per share (in shares)	140,667	142,143	141,276
Basic (in dollars per share)	$ 1.30	$ 0.70	$ 0.35
Diluted (in dollars per share)	$ 1.27	$ 0.67	$ 0.34
Stock options, RSUs, ESPP shares, and equity awards with a market condition or performance condition excluded as they are antidilutive (in shares)	472	638	646

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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Reference 29: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Paragraph 1B
-Subparagraph (a)
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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Net income	$ 178,882	$ 95,922	$ 47,392
Other comprehensive income (loss):
Translation adjustment	(1,554)	(75)	1,533
Change in actuarial valuation of defined benefit pension, net of tax	591	372	(678)
Comprehensive income	$ 177,919	$ 96,219	$ 48,247

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

Note 15 - Contingencies	12 Months Ended
Note 15 - Contingencies	Dec. 31, 2022
Notes to Financial Statements
Contingencies Disclosure [Text Block]	Note 15 - Contingencies Legal Matters On or about December 19, 2018, Steven A.W. De Jaray, Perienne De Jaray and Darrell R. Oswald (collectively, the “Plaintiffs”) commenced an action against the Company and several unnamed defendants in the Multnomah County Circuit Court of the State of Oregon, in connection with the sale of certain products by the Company to the Plaintiffs in or around 2008. The Plaintiffs allege that we violated The Lanham Act, engaged in negligence and fraud by failing to disclose to the Plaintiffs the export-controlled status of the subject parts. The Plaintiffs seek damages of $155 million to $268 million, treble damages, and other remedies. In January 2019, we removed the action to the United States District Court for the District of Oregon. At this stage of the proceedings, we do not have an estimate of the likelihood or the amount of any potential exposure to the Company; however, we believe that these claims are without merit and intend to vigorously defend the action. From time to time, we are exposed to certain additional asserted and unasserted potential claims. We review the status of each significant matter and assess its potential financial exposure. If the potential loss from any claim or legal proceeding is considered probable and a range of possible losses can be estimated, we then accrue a liability for the estimated loss. Legal proceedings are subject to uncertainties, and the outcomes are difficult to predict. Because of such uncertainties, accruals are based only on the best information available at the time. As additional information becomes available, we reassess the potential liability related to pending claims and litigation and may revise estimates.

The entire disclosure for loss and gain contingencies. Describes any existing condition, situation, or set of circumstances involving uncertainty as of the balance sheet date (or prior to issuance of the financial statements) as to a probable or reasonably possible loss incurred by an entity that will ultimately be resolved when one or more future events occur or fail to occur, and typically discloses the amount of loss recorded or a range of possible loss, or an assertion that no reasonable estimate can be made.

+ References + Details

Note 4 - Balance Sheet Components - Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Jan. 01, 2022
Work in progress	$ 58,269	$ 43,546
Finished goods	52,106	24,048
Total inventories, net	$ 110,375	$ 67,594

Note 2 - Net Income Per Share

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Text Block]

Note 2 - Net Income Per Share

Our calculation of the diluted share count includes the number of shares from our equity awards with market conditions or performance conditions that would be issuable under the terms of such awards at the end of the reporting period. For equity awards with a market condition, the number of shares included in the diluted share count as of the end of each period presented is determined by measuring the achievement of the market condition as of the end of the respective reporting periods. For equity awards with a performance condition, the number of shares that qualified for vesting as of the end of each period presented are included in the diluted share count when the condition for their issuance was satisfied by the end of the respective reporting periods. See "Note 11 - Stock-Based Compensation Plans" for further discussion of our equity awards with market or performance conditions.

A summary of basic and diluted Net income per share is presented in the following table:

	*Year Ended*
	*December 31,*		*January 1,*		*January 2,*
(In thousands, except per share data)	*2022*		*2022*		*2021*
Net income	$	178,882	$	95,922	$	47,392

Shares used in basic Net income per share		137,321		136,619		135,220
Dilutive effect of stock options, RSUs, ESPP shares, and equity awards with a market condition or performance condition		3,346		5,524		6,056
Shares used in diluted Net income per share		140,667		142,143		141,276

Basic Net income per share	$	1.30	$	0.70	$	0.35
Diluted Net income per share	$	1.27	$	0.67	$	0.34

The computation of diluted Net income per share excludes the effects of stock options, RSUs, ESPP shares, and equity awards with a market condition or performance condition that are antidilutive, aggregating to approximately the following number of shares:

Year Ended

December 31,

January 1,

January 2,

(In thousands)

2022

2021

Stock options, RSUs, ESPP shares, and equity awards with a market condition or performance condition excluded as they are antidilutive

472

638

646

Note 7 - Intangible Assets - Finite Lived Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022
Intangible Assets, gross	$ 165,392	$ 165,272
Accumulated Amortization	(140,322)	(135,490)
Intangible Assets, net	$ 25,070	$ 29,782
Existing Technology [Member]
Weighted Average Amortization (Year)	5 years 1 month 6 days	5 years 1 month 6 days
Intangible Assets, gross	$ 124,487	$ 124,487
Accumulated Amortization	(113,157)	(111,090)
Intangible Assets, net	$ 11,330	$ 13,397
Customer Relationships [Member]
Weighted Average Amortization (Year)	6 years 1 month 6 days	6 years 1 month 6 days
Intangible Assets, gross	$ 32,734	$ 32,734
Accumulated Amortization	(24,509)	(22,947)
Intangible Assets, net	$ 8,225	$ 9,787
Trademarks and Trade Names [Member]
Weighted Average Amortization (Year)	10 years	10 years
Intangible Assets, gross	$ 1,500	$ 1,500
Accumulated Amortization	(169)	(19)
Intangible Assets, net	$ 1,331	$ 1,481
Licensed Technology [Member]
Weighted Average Amortization (Year)	6 years 3 months 18 days	6 years 3 months 18 days
Intangible Assets, gross	$ 6,671	$ 6,551
Accumulated Amortization	(2,487)	(1,434)
Intangible Assets, net	$ 4,184	$ 5,117

Document And Entity Information - USD ($)	12 Months Ended
Document And Entity Information - USD ($)	Dec. 31, 2022	Feb. 13, 2023	Jul. 02, 2022
Document Information [Line Items]
Entity Central Index Key	0000855658
Entity Registrant Name	Lattice Semiconductor Corp
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2022
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Document Transition Report	false
Entity File Number	000-18032
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	93-0835214
Entity Address, Address Line One	5555 NE Moore Court
Entity Address, City or Town	Hillsboro
Entity Address, State or Province	OR
Entity Address, Postal Zip Code	97124-6421
City Area Code	503
Local Phone Number	268-8000
Title of 12(b) Security	Common Stock, $.01 par value
Trading Symbol	LSCC
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		137,382,419
Entity Public Float			$ 4,910,050,770
Auditor Name	Ernst & Young LLP
Auditor Location	San Jose, California
Auditor Firm ID	42

Note 8 - Long-term Debt - Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Contractual interest	$ 4,500	$ 2,304	$ 3,319
Amortization of original issuance discount and debt costs	310	362	400
Total interest expense related to long-term debt	$ 4,810	$ 2,666	$ 3,719

Consolidated Balance Sheets (Unaudited) (Parentheticals) - $ / shares	Dec. 31, 2022	Jan. 01, 2022
Preferred stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	300,000,000	300,000,000
Common stock, shares issued (in shares)	137,099,000	137,239,000
Common stock, shares outstanding (in shares)	137,099,000	137,239,000

Note 5 - Property and Equipment (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Depreciation, Total	$ 13.8	$ 12.0	$ 11.8

Note 1 - Basis of Presentation and Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

	*Year Ended*
	*December 31,*			*January 1,*			*January 2,*
	*2022*			*2022*			*2021*
Weikeng Group		30	%		37	%		35	%
Arrow Electronics Inc.		28			27			25
Other distributors		31			23			23
Revenue attributable to distributors		89	%		87	%		83	%

Note 8 - Long-term Debt - Fair Value of Long-term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Jan. 01, 2022
Principal amount	$ 130,000	$ 158,750
Unamortized original issuance discount and debt costs	(1,248)	(817)
Less: Current portion of long-term debt	0	(17,173)
Long-term debt, net of current portion and unamortized debt issue costs	$ 128,752	$ 140,760

Note 12 - Common Stock Repurchase Program (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021	Aug. 08, 2022
Stock Repurchased and Retired During Period, Value		$ 110,131	$ 70,124	$ 14,989
Repurchase Program 2023 [Member]
Stock Repurchase Program, Authorized Amount					$ 150,000
Stock Repurchased and Retired During Period, Shares (in shares)	288,652	1,951,934
Stock Repurchased and Retired During Period, Value	$ 20,000	$ 110,100
Treasury Stock Acquired, Average Cost Per Share (in dollars per share)	$ 69.27	$ 56.42
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 129,700	$ 129,700

Note 10 - Leases (Details Textual) - USD ($) $ in Millions	12 Months Ended
Note 10 - Leases (Details Textual) - USD ($) $ in Millions	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Operating Lease, Weighted Average Remaining Lease Term (Year)	3 years 6 months
Operating Lease, Weighted Average Discount Rate, Percent	5.40%
Operating Lease, Cost	$ 7.6	$ 7.9	$ 7.6
Operating Lease Liability for Previously Restructured Facilities	$ 5.9
Minimum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)			1 year
Lessee, Operating Lease, Option to Extend, Period (Year)	5 years
Maximum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)	6 years
Lessee, Operating Lease, Option to Terminate Period (Year)	1 year

Note 11 - Stock-Based Compensation Plans (Details Textual) $ / shares in Units, $ in Thousands, shares in Millions		1 Months Ended	3 Months Ended			12 Months Ended
	May 31, 2012 shares	May 31, 2012 shares	Apr. 03, 2021	Jun. 27, 2020	Mar. 28, 2020 USD ($)	Dec. 31, 2022 USD ($) $ / shares shares	Jan. 01, 2022 USD ($) $ / shares	Jan. 02, 2021 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)						4 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) \| $ / shares						$ 15,250,000	$ 13,040,000.00	$ 6,620,000
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount						$ 0
Share-Based Payment Arrangement, Expense						55,530	$ 46,475	$ 40,372
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value						24,300	44,700	21,500
Awards with Market Condition or Performance Condition [Member]
Share-Based Payment Arrangement, Expense						1,500	1,200	1,000
Share-Based Payment Arrangement, Option [Member]
Share-Based Payment Arrangement, Expense						$ 0	1,000	2,000
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) \| $ / shares						$ 62.23
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount						$ 21,600
Share-Based Payment Arrangement, Expense					$ 1,800
Restricted Stock Units (RSUs) [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Based on Market Conditions						250.00%
Restricted Stock Units (RSUs) [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Based on Market Conditions						200.00%
Restricted Stock Units (RSUs) [Member] \| Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)						3 years
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount						$ 81,600
Share-Based Payment Arrangement, Expense						$ 30,100	21,700	16,600
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Grants Tested Each Year						50.00%
Restricted Stock Units (RSUs) [Member] \| Executive Officer [Member] \| Share-Based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Based on Market Conditions					200.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved						75.00%
Restricted Stock Units (RSUs) [Member] \| Executive Officer [Member] \| Share-Based Payment Arrangement, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Based on Market Conditions						100.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved						55.00%
Restricted Stock Units (RSUs) [Member] \| Executive Officer [Member] \| Share-Based Payment Arrangement, Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved						25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage						0.00%
Restricted Stock Units (RSUs) [Member] \| Executive Officer [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Based on Market Conditions			250.00%
Restricted Stock Units (RSUs) [Member] \| Executive Officer [Member] \| Minimum [Member] \| TSR Relative To PHLX Semiconductor Sector Index, 75th Percentile [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Based on Market Conditions						250.00%
Restricted Stock Units (RSUs) [Member] \| Executive Officer [Member] \| Minimum [Member] \| Share-Based Payment Arrangement, Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved						25.00%
Restricted Stock Units (RSUs) [Member] \| Executive Officer [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Based on Market Conditions			200.00%			200.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved						250.00%
Restricted Stock Units (RSUs) [Member] \| Executive Officer [Member] \| Maximum [Member] \| TSR Relative To PHLX Semiconductor Sector Index, 75th Percentile [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Based on Market Conditions						200.00%
Restricted Stock Units (RSUs) [Member] \| Executive Officer [Member] \| Maximum [Member] \| Share-Based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved						250.00%
Restricted Stock Units (RSUs) [Member] \| Executive Officer [Member] \| Maximum [Member] \| Share-Based Payment Arrangement, Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved						75.00%
Performance Shares [Member] \| Share-Based Payment Arrangement, Tranche Five [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage						40.00%
Performance Shares [Member] \| Share-Based Payment Arrangement, Tranche Six [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage						70.00%
Performance Shares [Member] \| Executive Officer [Member]
Share-Based Payment Arrangement, Expense						$ 24,000	$ 22,100	$ 20,800
Performance Shares [Member] \| Executive Officer [Member] \| Maximum [Member] \| TSR Relative To PHLX Semiconductor Sector Index, 75th Percentile [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Based on Market Conditions						200.00%
Performance Shares Granted in 2018 [Member] \| Executive Officer [Member] \| Share-Based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Based on Market Conditions				33.30%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved					75.00%
Performance Shares Granted in 2018 [Member] \| Executive Officer [Member] \| Minimum [Member] \| Share-Based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Based on Market Conditions						200.00%
The2012 ESPP [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares) \| shares	3.0	3.0
Share-based Compensation Arrangement By Share-based Payment Award, Maximum, Annual Contribution Per Employee, Percent	10.00%
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent		85.00%
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares) \| shares						1.0
The 2013 Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares) \| shares						5.0
Share-based Compensation Arrangement by Share-based Payment Award, Share Ratio							2.2
Share-based Compensation Arrangement by Share-based Payment Award, Number Of Shares, Transferred Out (in shares) \| shares						2.5

Note 9 - Restructuring - Activity Related to Restructuring Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Restructuring charges	$ 2,551	$ 940	$ 3,937
Employee Severance [Member]
Accrued Restructuring	251	246	160
Restructuring charges	303	250	1,669
Costs paid or otherwise settled	(154)	(245)	(1,583)
Accrued Restructuring	400	251	246
Lease Termination and Fixed Assets [Member]
Accrued Restructuring	7,130	8,233	6,585
Restructuring charges	1,608	690	1,896
Costs paid or otherwise settled	(2,846)	(1,793)	(248)
Accrued Restructuring	5,892	7,130	8,233
Software Contracts and Engineering Tools [Member]
Accrued Restructuring	0	664	865
Restructuring charges	640	0	372
Costs paid or otherwise settled	0	(664)	(573)
Accrued Restructuring	640	0	664
Other Restructuring [Member]
Accrued Restructuring	7,381	9,143	7,610
Restructuring charges	2,551	940	3,937
Costs paid or otherwise settled	(3,000)	(2,702)	(2,404)
Accrued Restructuring	$ 6,932	$ 7,381	$ 9,143

Note 4 - Balance Sheet Components - Capitalized Software Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022
Cloud based computing implementation costs as of January 2, 2021	$ 2,380	$ 2,831
Costs capitalized	63	324
Amortization	(841)	(775)
Cloud based computing implementation costs as of January 1, 2022	$ 1,602	$ 2,380

Note 13 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

	*Year Ended*
	*December 31,*		*January 1,*		*January 2,*
(In thousands)	*2022*		*2022*		*2021*
Domestic	$	30,362	$	24,003	$	11,772
Foreign		151,750		73,623		36,684
Income before taxes	$	182,112	$	97,626	$	48,456

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	*Year Ended*
	*December 31,*			*January 1,*			*January 2,*
(In thousands)	*2022*			*2022*			*2021*
Current:
Federal	$	748		$	445		$	54
State		265			45			68
Foreign		3,637			1,538			1,025
		4,650			2,028			1,147
Deferred:
Federal		—			—			—
State		—			—			—
Foreign		(1,420	)		(324	)		(83	)
		(1,420	)		(324	)		(83	)
Income tax expense	$	3,230		$	1,704		$	1,064

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	*Year Ended*
	*December 31,*	*January 1,*	*January 2,*
	*2022*	*2022*	*2021*
	%	%	%
Statutory federal rate	21	21	21
Adjustments for tax effects of:
State taxes, net	(2)	(4)	(4)
Federal tax credits	(1)	(3)	(3)
Excess tax benefit from stock compensation	—	(8)	(10)
Foreign rate differential	(16)	(14)	(12)
U.S. tax on foreign operations	33	3	15
Foreign withholding taxes	1	1	3
Capital loss expiration	1	3	—
Other deferred tax asset adjustment	—	—	3
Valuation allowance	(33)	8	(13)
Change in uncertain tax benefit accrual	(2)	(5)	2
Effective income tax rate	2	2	2

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

(In thousands)	*December 31, 2022*			*January 1, 2022*
Deferred tax assets:
Intangible assets	$	6,264		$	8,236
Net operating loss carry forwards		15,362			88,254
Tax credit carry forwards		103,092			93,095
Accrued liabilities and reserves		12,932			6,590
Stock-based and deferred compensation		3,769			4,477
Other		5,031			6,615
Total deferred tax assets		146,450			207,267
Less: valuation allowance		(140,533	)		(200,438	)
Net deferred tax assets		5,917			6,829
Deferred tax liabilities:
Fixed assets		2,058			2,379
Unremitted earnings		2,498			2,128
Other		8,134			9,969
Total deferred tax liabilities		12,690			14,476
Net deferred taxes	$	(6,773	)	$	(7,647	)

Reported as:
Deferred tax assets (included in Other long-term assets)	$	1,022		$	953
Deferred tax liabilities (included in Other long-term liabilities)		(7,795	)		(8,600	)
Net deferred taxes	$	(6,773	)	$	(7,647	)

Summary of Valuation Allowance [Table Text Block]

Fiscal Years Ended	*Balance at beginning*		*Charged (Credit) to costs and*			*Charged (credit) to other*		*Balance at end of*
(In thousands)	*of period*		*expenses*			*accounts*		*period*
December 31, 2022	$	200,438	$	(59,905	)	$	—	$	140,533
January 1, 2022	$	192,478	$	7,960		$	—	$	200,438
January 2, 2021	$	198,499	$	(6,021	)	$	—	$	192,478

Schedule of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns Roll Forward [Table Text Block]

	(In thousands)
Balance at December 28, 2019	$	56,962
Additions based on tax positions related to the current year		548
Additions based on tax positions of prior years		628
Reduction for tax positions of prior years		—
Reduction as a result of lapse of applicable statute of limitations		(2,401	)
Balance at January 2, 2021		55,737
Additions based on tax positions related to the current year		1,156
Additions based on tax positions of prior years		1,130
Additions due to acquisition		977
Settlements		(51	)
Reduction as a result of lapse of applicable statute of limitations		(2,718	)
Balance at January 1, 2022		56,231
Additions based on tax positions related to the current year		1,594
Additions based on tax positions of prior years		2,798
Settlements		(148	)
Reduction as a result of lapse of applicable statute of limitations		(1,586	)
Balance at December 31, 2022	$	58,889

Note 10 - Leases - Maturities of Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Jan. 01, 2022
2023	$ 7,536
2024	6,042
2025	4,140
2026	2,522
2027	1,110
Thereafter	934
Total lease payments	22,284
Less: amount representing interest	(2,212)
Total lease liabilities	$ 20,072	$ 24,944

Note 13 - Income Taxes - Income Before Income Tax Domestic and Foreign (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Domestic	$ 30,362	$ 24,003	$ 11,772
Foreign	151,750	73,623	36,684
Income before income taxes	$ 182,112	$ 97,626	$ 48,456

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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Note 6 - Business Combination and Goodwill (Tables)

12 Months Ended

Dec. 31, 2022

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

(In thousands)	*Estimated Fair Value*
Assets acquired:
Cash and cash equivalents	$	437
Accounts receivable		3,265
Other current assets		262
Property and equipment		156
Intangible assets		24,800
Goodwill		47,844
Total assets acquired		76,764
Liabilities assumed
Accounts payable		21
Accrued liabilities		5
Accrued payroll obligations		247
Long-term liabilities		7,955
Total liabilities assumed		8,228
Fair value of net assets acquired	$	68,536

Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]

	*Useful Life*		*Fair Value*
	(In years)		(In thousands)
Existing technology		7	$	13,500
Customer relationships		7		9,800
Trade name / trademarks		10		1,500
Total identified intangible assets subject to amortization			$	24,800

Note 3 - Revenue From Contracts With Customers - Contract Balance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022
Contract assets, balance	$ 5,672	$ 5,611
Revenues recorded during the period	15,848	15,587
Transferred to Accounts receivable or collected	(14,173)	(15,526)
Contract assets, balance	7,347	5,672
Contract liabilities as of January 2, 2021	4,768	3,068
Accruals for estimated future stock rotation and scrap returns	6,142	4,613
Less: Release of accruals for recognized stock rotation and scrap returns	(6,055)	(2,913)
Prepaid customer deposit	12,811
Contract liabilities as of January 1, 2022	$ 17,666	$ 4,768

Note 7 - Intangible Assets - Finite Lived Intangible Assets Future Amortization Expense (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Jan. 01, 2022
2023	$ 4,522
2024	4,310
2025	4,263
2026	4,261
2027	4,197
Thereafter	3,517
Total	$ 25,070	$ 29,782

Note 13 - Income Taxes (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021	Dec. 28, 2019
Deferred Tax Assets, Valuation Allowance, Total	$ 140,533	$ 200,438
Undistributed Earnings of Foreign Subsidiaries	3,000
Unrecognized Tax Benefits, Ending Balance	58,889	56,231	$ 55,737	$ 56,962
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	56,300	54,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	10,600	9,600
Liability for Uncertainty in Income Taxes, Current	47,900	$ 44,200
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	1,000
Significant Change in Unrecognized Tax Benefits Is Reasonably Possible, Amount of Associated Income, Tax Penalties and Interest Accrued	200
Other Noncurrent Liabilities [Member]
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	21,600
Domestic Tax Authority [Member]
Operating Loss Carryforwards	16,300
Tax Credit Carryforward, Amount	59,100
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	142,000
Tax Credit Carryforward, Amount	75,000
Foreign Tax Authority [Member]
Deferred Tax Assets, Valuation Allowance, Total	$ 0

Note 5 - Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2022

Property, Plant and Equipment [Table Text Block]

	*December 31,*			*January 1,*
(In thousands)	*2022*			*2022*
Production equipment and software	$	149,787		$	133,039
Leasehold improvements		12,416			12,960
Office furniture and equipment		1,760			2,000
		163,963			147,999
Accumulated depreciation and amortization		(116,349	)		(109,905	)
	$	47,614		$	38,094

	*December 31,*		*January 1,*
(In thousands)	*2022*		*2022*
United States	$	29,118	$	26,509

Taiwan		10,732		6,555
Philippines		3,596		2,498
China		2,229		1,643
Other		1,939		889
Total foreign property and equipment, net		18,496		11,585
Total property and equipment, net	$	47,614	$	38,094

Note 14 - Employee Benefit Plans (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 2.8	$ 2.6	$ 2.4
Labor And Related Expense, Incentive Compensation	$ 25.2	$ 18.0	$ 7.9

Note 6 - Business Combination and Goodwill - Details of Identified Intangible Assets Acquired Through Acquisition (Details) - USD ($) $ in Millions		12 Months Ended
	Nov. 12, 2021	Dec. 31, 2022	Jan. 01, 2022
Existing Technology [Member]
Weighted Average Amortization (Year)		5 years 1 month 6 days	5 years 1 month 6 days
Customer Relationships [Member]
Weighted Average Amortization (Year)		6 years 1 month 6 days	6 years 1 month 6 days
Trademarks and Trade Names [Member]
Weighted Average Amortization (Year)		10 years	10 years
Mirametrix [Member]
Fair value	$ 24.8
Mirametrix [Member] \| Existing Technology [Member]
Weighted Average Amortization (Year)	7 years
Fair value	$ 13.5
Mirametrix [Member] \| Customer Relationships [Member]
Weighted Average Amortization (Year)	7 years
Fair value	$ 9.8
Mirametrix [Member] \| Trademarks and Trade Names [Member]
Weighted Average Amortization (Year)	10 years
Fair value	$ 1.5

Note 9 - Restructuring (Tables)

12 Months Ended

Dec. 31, 2022

Schedule of Restructuring Reserve by Type of Cost [Table Text Block]

(In thousands)	*Severance & Related (1)*			*Lease Termination & Fixed Assets*			*Other (2)*			*Total*
Accrued Restructuring at December 28, 2019	$	160		$	6,585		$	865		$	7,610
Restructuring charges		1,669			1,896			372			3,937
Costs paid or otherwise settled		(1,583	)		(248	)		(573	)		(2,404	)
Accrued Restructuring at January 2, 2021	$	246		$	8,233		$	664		$	9,143
Restructuring charges		250			690			—			940
Costs paid or otherwise settled		(245	)		(1,793	)		(664	)		(2,702	)
Accrued Restructuring at January 1, 2022	$	251		$	7,130		$	—		$	7,381
Restructuring charges		303			1,608			640			2,551
Costs paid or otherwise settled		(154	)		(2,846	)		—			(3,000	)
Accrued Restructuring at December 31, 2022	$	400		$	5,892		$	640		$	6,932

Note 11 - Stock-Based Compensation Plans - Assumptions Used at Grant Date In the Valuation of RUSs (Details) - Restricted Stock Units (RSUs) [Member]	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Weighted average expected volatility	51.44%
Weighted average risk-free interest rate	1.67%
Expected term (in months) (Year)	3 years		3 years
Minimum [Member]
Weighted average expected volatility		50.37%	42.38%
Weighted average risk-free interest rate		0.22%	1.40%
Expected term (in months) (Year)		3 years
Maximum [Member]
Weighted average expected volatility		52.11%
Weighted average risk-free interest rate		0.77%
Expected term (in months) (Year)		5 years

Note 12 - Common Stock Repurchase Program

12 Months Ended

Dec. 31, 2022

Treasury Stock [Text Block]

Note 12 - Common Stock Repurchase Program

On August 8, 2022, we announced that our Board of Directors had approved a stock repurchase program pursuant to which up to $150 million of outstanding common stock could be repurchased from time to time (the "2023 Repurchase Program"). The duration of the 2023 Repurchase Program is through the end of December 2023. Under the 2023 Repurchase Program during the fourth quarter of fiscal 2022, we repurchased 288,652 shares for $20.0 million, or an average price paid per share of $69.27. All repurchases were open market transactions funded from available working capital. All shares repurchased pursuant to the 2023 Repurchase Program were retired by the end of the fourth quarter of fiscal 2022. As of December 31, 2022, the remaining portion of the amount authorized for the 2023 Repurchase Program is approximately $129.7 million. We repurchased a total of 1,951,934 shares for $110.1 million, or an average price paid per share of $56.42, during fiscal year 2022.

Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Revenue	$ 660,356	$ 515,327	$ 408,120
Cost of revenue	208,306	193,652	162,814
Gross margin	452,050	321,675	245,306
Operating expenses:
Research and development	135,767	110,518	89,223
Selling, general, and administrative	122,076	105,617	95,331
Amortization of acquired intangible assets	3,778	2,613	4,449
Restructuring charges	2,551	940	3,937
Acquisition related charges	511	1,171	0
Total operating expenses	264,683	220,859	192,940
Income from operations	187,367	100,816	52,366
Interest expense	(4,146)	(2,738)	(3,702)
Other (expense) income, net	(1,109)	(452)	(208)
Income before income taxes	182,112	97,626	48,456
Income tax expense (benefit)	3,230	1,704	1,064
Net income	$ 178,882	$ 95,922	$ 47,392
Net income per share:
Basic (in dollars per share)	$ 1.30	$ 0.70	$ 0.35
Diluted (in dollars per share)	$ 1.27	$ 0.67	$ 0.34
Shares used in per share calculations:
Basic (in shares)	137,321	136,619	135,220
Diluted (in shares)	140,667	142,143	141,276

Note 11 - Stock-Based Compensation Plans - Schedule of Share Based Compensation Stock Options Activity (Details) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) $ / shares shares
Balance (in shares) \| shares	1,367
Balance (in dollars per share) \| $ / shares	$ 6.62
Granted (in shares) \| shares	0
Granted (in dollars per share) \| $ / shares	$ 0
Exercised (in shares) \| shares	(448)
Exercised (in dollars per share) \| $ / shares	$ 6.48
Forfeited or expired (in shares) \| shares	(1)
Forfeited or expired (in dollars per share) \| $ / shares	$ 5.01
Balance (in shares) \| shares	918
Balance (in dollars per share) \| $ / shares	$ 6.70
Vested and expected to vest (in shares) \| shares	918
Vested and expected to vest (in dollars per share) \| $ / shares	$ 6.70
Vested and expected to vest (Year)	1 year 11 months 4 days
Vested and expected to vest \| $	$ 53,433
Exercisable (in shares) \| shares	918
Exercisable (in dollars per share) \| $ / shares	$ 6.70
Exercisable (Year)	1 year 11 months 4 days
Exercisable, December 31, 2022 \| $	$ 53,433

Note 13 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Jan. 01, 2022
Intangible assets	$ 6,264	$ 8,236
Net operating loss carry forwards	15,362	88,254
Tax credit carry forwards	103,092	93,095
Accrued liabilities and reserves	12,932	6,590
Stock-based and deferred compensation	3,769	4,477
Other	5,031	6,615
Total deferred tax assets	146,450	207,267
Less: valuation allowance	(140,533)	(200,438)
Net deferred tax assets	5,917	6,829
Fixed assets	2,058	2,379
Unremitted earnings	2,498	2,128
Other	8,134	9,969
Total deferred tax liabilities	12,690	14,476
Net deferred taxes	(6,773)	(7,647)
Deferred tax assets (included in Other long-term assets)	5,917	6,829
Deferred tax liabilities (included in Other long-term liabilities)	(12,690)	(14,476)
Net deferred taxes	(6,773)	(7,647)
Other Noncurrent Assets [Member]
Net deferred tax assets	1,022	953
Deferred tax assets (included in Other long-term assets)	1,022	953
Other Noncurrent Liabilities [Member]
Total deferred tax liabilities	7,795	8,600
Deferred tax liabilities (included in Other long-term liabilities)	$ (7,795)	$ (8,600)

Note 8 - Long-term Debt (Tables)

12 Months Ended

Dec. 31, 2022

Schedule of Long-Term Debt Instruments [Table Text Block]

	*December 31,*			*January 1,*
(In thousands)	*2022*			*2022*
Principal amount	$	130,000		$	158,750
Unamortized original issuance discount and debt costs		(1,248	)		(817	)
Less: Current portion of long-term debt		—			(17,173	)
Long-term debt, net of current portion and unamortized debt issue costs	$	128,752		$	140,760

Interest Income and Interest Expense Disclosure [Table Text Block]

	Year Ended
	December 31,		January 1,		January 2,
(In thousands)	2022		2022		2021
Contractual interest	$	4,500	$	2,304	$	3,319
Amortization of original issuance discount and debt costs		310		362		400
Total interest expense related to long-term debt	$	4,810	$	2,666	$	3,719

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

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Note 11 - Stock-based Compensation - Stock-based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Total stock-based compensation	$ 55,530	$ 46,475	$ 40,372
Cost of Sales [Member]
Total stock-based compensation	3,674	3,049	3,179
Research and Development Expense [Member]
Total stock-based compensation	19,645	14,563	10,124
Selling, General and Administrative Expenses [Member]
Total stock-based compensation	$ 32,211	$ 28,863	$ 27,069

Note 6 - Business Combination and Goodwill - Fair Value of Assets Acquired and Liabilities Assumed in the Acquisition (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Jan. 01, 2022	Nov. 12, 2011	Nov. 11, 2011
Goodwill, Ending Balance	$ 315,358	$ 315,358		$ 267,500
Accrued liabilities	5
Mirametrix [Member]
Cash and cash equivalents	437
Accounts receivable	3,265
Other current assets	262
Property and equipment	156
Intangible assets	24,800
Goodwill, Ending Balance	47,844		$ 47,800
Total assets acquired	76,764
Accounts payable	21
Accrued payroll obligations	247
Long-term liabilities	7,955
Total liabilities assumed	8,228
Fair value of net assets acquired	$ 68,536

Note 4 - Balance Sheet Components - Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Jan. 01, 2022
Contract liability under ASC 606	$ 17,666	$ 4,768
Liability for non-cancelable contracts	10,498	9,930
Liability for production materials	6,002	0
Other accrued liabilities	7,847	6,050
Total accrued liabilities	48,467	26,444
Accrued Liabilities [Member]
Current portion of operating lease liabilities	$ 6,454	$ 5,696

Note 4 - Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2022