QuickLogic (QUIK) 10-K 22 Mar 22 2021 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Jan. 02, 2022	Mar. 14, 2022	Jul. 04, 2021
Document Information [Line Items]
Entity Central Index Key	0000882508
Entity Registrant Name	QUICKLOGIC Corp
Amendment Flag	false
Current Fiscal Year End Date	--01-02
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2021
Document Type	10-K
Document Annual Report	true
Document Period End Date	Jan. 2, 2022
Document Transition Report	false
Entity File Number	000-22671
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	77-0188504
Entity Address, Address Line One	2220 Lundy Avenue
Entity Address, City or Town	San Jose
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95131
City Area Code	408
Local Phone Number	990-4000
Title of 12(b) Security	Common Stock, $0.001 par value
Trading Symbol	QUIK
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	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Entity Shell Company	false
Entity Public Float			$ 75,951,915
Entity Common Stock, Shares Outstanding		12,362,334
Auditor Name	Moss Adams LLP
Auditor Location	San Francisco, CA
Auditor Firm ID	659

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($)	Jan. 02, 2022	Jan. 03, 2021
Current assets:
Cash and cash equivalents and restricted cash	$ 19,605,000	$ 22,748,000
Accounts receivable, net of allowances for doubtful accounts of $62 and $0, respectively	1,294,000	1,688,000
Inventories	2,078,000	2,688,000
Prepaid expenses and other current assets	1,181,000	1,066,000
Total current assets	24,158,000	28,190,000
Property and equipment, net	499,000	548,000
Capitalized internal-use software, net	1,241,000	986,000
Right of use assets, net	1,529,000	1,839,000
Intangible assets, net	752,000	860,000
Investment in privately-held non-affiliate	300,000	0
Goodwill	185,000	185,000
Other assets	309,000	280,000
TOTAL ASSETS	28,973,000	32,888,000
Current liabilities:
Revolving line of credit	15,000,000	15,000,000
Trade payables	934,000	935,000
Accrued liabilities	1,665,000	1,340,000
Deferred revenue	455,000	52,000
Lease liabilities, current	819,000	685,000
Total current liabilities	18,873,000	18,012,000
Long-term liabilities:
Lease liabilities, non-current	744,000	1,197,000
Paycheck Protection Program loan	0	1,192,000
Other long-term liabilities	147,000
Total liabilities	19,764,000	20,401,000
Commitments (Note 15)
Stockholders' equity:
Preferred stock, $0.001 par value; 10,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.001 par value; 200,000 shares authorized; 11,863 and 11,094 shares issued and outstanding as of January 2, 2022 and January 3, 2021, respectively	12,000	11,000
Additional paid-in capital	310,222,000	306,885,000
Accumulated deficit	(301,025,000)	(294,409,000)
Total stockholders' equity	9,209,000	12,487,000
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 28,973,000	$ 32,888,000

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) shares in Thousands	Jan. 02, 2022	Jan. 03, 2021
Allowance for doubtful accounts	$ 62	$ 0
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	10,000	10,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	200,000	200,000
Common stock, shares issued (in shares)	11,863	11,094
Common stock, shares outstanding (in shares)	11,863	11,094

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands		12 Months Ended
		Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Revenue	[1]	$ 12,685,000	$ 8,634,000	$ 10,310,000
Cost of revenue		5,266,000	4,386,000	4,405,000
Gross profit		7,419,000	4,248,000	5,905,000
Operating expenses:
Research and development		6,927,000	7,544,000	12,350,000
Selling, general and administrative		8,008,000	6,820,000	8,918,000
Restructuring costs		0	753,000	0
Loss from operations		(7,516,000)	(10,869,000)	(15,363,000)
Interest expense		(130,000)	(328,000)	(350,000)
Gain on forgiveness of PPP Loan		1,192,000	0	0
Interest income and other expense, net		(43,000)	97,000	189,000
Loss before income taxes		(6,497,000)	(11,100,000)	(15,524,000)
Provision for (benefit from) income taxes		119,000	51,000	(80,000)
Net loss		$ (6,616,000)	$ (11,151,000)	$ (15,444,000)
Net loss per share: (1)
Basic and diluted (in dollars per share)	[2]	$ (0.57)	$ (1.14)	$ (2.02)
Weighted average shares: (1)
Basic and diluted (in shares)	[2]	11,535	9,781	7,663
[1]	New products include all products manufactured on 180 nanometer or smaller semiconductor processes, eFPGA IP license, professional services, QuickAI and SensiML AI software as a service (SaaS) revenues. Mature products include all products produced on semiconductor processes larger than 180 nanometers. New product revenues of $7.8 million includes revenues from in eFPGA IP license of $1.1 million and professional engineering services of $1.5 million for fiscal 2021. For fiscal years 2020 and 2019 the Company recognized $0.3 million and $0, respectively, in revenues for professional engineering services. Related to the Company's professional services revenue, the Company had Contract assets of approximately $250 thousand included in accounts receivable on its Consolidated Balance Sheet at January 2, 2022 and none at January 3, 2021. Additionally, at January 2, 2022, the Company had contract liabilities, related to its professional services, of $300 thousand included in deferred revenue on its Consolidated Balance Sheet and none at January 3, 2021.
[2]	Net loss equals to comprehensive loss for all years presented.

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Cash flows from operating activities:
Net loss	$ (6,616,000)	$ (11,151,000)	$ (15,444,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	626,000	817,000	1,201,000
Stock-based compensation	2,526,000	1,739,000	3,144,000
Write-down of inventories	225,000	199,000	94,000
Gain on forgiveness of PPP Loan	(1,192,000)	0	0
Loss (gain) on disposal of equipment	(5,000)	44,000	4,000
Tax benefit from acquisition	0	0	(185,000)
Bad debt expense	62,000	0	0
Changes in operating assets and liabilities:
Accounts receivable	332,000	303,000	218,000
Inventories	385,000	373,000	483,000
Other assets	(444,000)	533,000	229,000
Trade payables	367,000	298,000	(456,000)
Accrued liabilities	325,000	207,000	(1,024,000)
Deferred income	403,000	(106,000)	158,000
Other long-term liabilities	147,000	0	(16,000)
Net cash used in operating activities	(2,859,000)	(6,744,000)	(11,594,000)
Cash flows from investing activities:
Capital expenditures for property and equipment	(185,000)	(253,000)	(576,000)
Capitalized internal-use software	(533,000)	(801,000)	(365,000)
Cash received from business acquisition	0	0	20,000
Net cash used in investing activities	(718,000)	(1,054,000)	(921,000)
Cash flows from financing activities:
Payment of finance lease obligations	(378,000)	(270,000)	(365,000)
Proceeds from PPP loan	0	1,191,000	0
Proceeds from line of credit	60,000,000	57,000,000	46,000,000
Repayment of line of credit	(60,000,000)	(57,000,000)	(46,000,000)
Proceeds from issuance of common stock	1,342,000	9,296,000	9,437,000
Stock issuance costs	(45,000)	(1,147,000)	(1,181,000)
Taxes paid related to net settlement of equity awards	(485,000)	(72,000)	(291,000)
Net cash provided by financing activities	434,000	8,998,000	7,600,000
Net (decrease) increase in cash, cash equivalents and restricted cash	(3,143,000)	1,200,000	(4,915,000)
Cash, cash equivalents and restricted cash at the beginning of the period	22,748,000	21,548,000	26,463,000
Cash, cash equivalents, and restricted cash at the end of the period	19,605,000	22,748,000	21,548,000
Supplemental disclosures of cash flow information:
Interest paid	77,000	277,000	300,000
Income taxes paid	73,000	24,000	126,000
Supplemental schedule of non-cash investing and financing activities:
Fair value of common stock issued as consideration for business acquisition	0	0	903,000
Finance lease obligation to finance capital expenditures	$ 690,000	$ 670,000	$ 471,000

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Dec. 30, 2018	6,823
Balance at Dec. 30, 2018	$ 7	$ 285,062	$ (267,814)	$ 17,255
Common stock issued under stock plans and employee stock purchase plans (in shares)	110
Common stock issued under stock plans and employee stock purchase plans	$ 0	(37)	0	(37)
Common stock offering, net of issuance costs (in shares)	1,314
Common stock offering, net of issuance costs	$ 1	8,001	0	8,002
Common stock issued for SensiML acquisition (in shares)	84
Common stock issued for SensiML acquisition	$ 0	903	0	903
Stock-based compensation	0	3,144	0	3,144
Net loss	$ 0	0	(15,444)	(15,444)
Balance (in shares) at Dec. 29, 2019	8,331
Balance at Dec. 29, 2019	$ 8	297,073	(283,258)	13,823
Common stock issued under stock plans and employee stock purchase plans (in shares)	121
Common stock issued under stock plans and employee stock purchase plans	$ 0	(24)	0	(24)
Common stock offering, net of issuance costs (in shares)	2,642
Common stock offering, net of issuance costs	$ 3	8,097	0	8,100
Common stock issued for SensiML acquisition (in shares)	0
Common stock issued for SensiML acquisition	$ 0	0	0	0
Stock-based compensation	0	1,739	0	1,739
Net loss	$ 0	0	(11,151)	(11,151)
Balance (in shares) at Jan. 03, 2021	11,094
Balance at Jan. 03, 2021	$ 11	306,885	(294,409)	12,487
Common stock issued under stock plans and employee stock purchase plans (in shares)	571
Common stock issued under stock plans and employee stock purchase plans	$ 0	(222)	0	(222)
Common stock offering, net of issuance costs (in shares)	198
Common stock offering, net of issuance costs	$ 1	1,033	0	1,034
Stock-based compensation	0	2,526		2,526
Net loss	$ 0	0	(6,616)	(6,616)
Balance (in shares) at Jan. 02, 2022	11,863
Balance at Jan. 02, 2022	$ 12	$ 310,222	$ (301,025)	$ 9,209

Note 1 - The Company and Basis

Note 1 - The Company and Basis of Presentation	12 Months Ended
	Jan. 02, 2022
Notes to Financial Statements
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]	1 QuickLogic Corporation ("QuickLogic" or, the "Company"), was founded in 1988 1999. QuickLogic’s fiscal year ends on the Sunday closest to December 31. 2021 2020 2019 January 2, 2022 January 3, 2021 December 29, 2019 COVID- 19 On January 30, 2020, 19 February 28, 2020, 19 19 19 As such, while COVID- 19 three twelve January 2, 2022, 19 2022 may 19. 19 19 may may 19 Restructuring In January 2020, January 24, 2020. twelve 2020, 2020. Liquidity The Company has financed its operations and capital investments through sale of common stock, capital and operating leases, a revolving line of credit and cash flows from operations. As of January 2, 2022 million including $15.0 million dra On September 28, 2018, On December 21, 2018, On November 6, 2019, one September 28, 2021. one one five one one On December 11, 2020, one September 28, 2022 one one On August 16, 2021, On November 16, 2021, December 21, 2018 ( December 31, 2023 December 31, 2021 On January 2, 2022 January 3, 2021, Note 7 On June 21, 2019, 11 to the Consolidated Financial Statements for additional information. On June 22, 2020, 11. On September 22, 2021, shares of our common stock (the “Private Placement”). On September 30, 2021, shares of our common stock, in a registered direct offering pursuant to our effective shelf registration statement on Form S- 3 No. 333 230352 2021, February 2022, February 2022 16. The Company currently uses its cash to fund its working capital, to accelerate the development of next generation products and for general corporate purposes. Based on past performance and current expectations, the Company believes that its existing cash and cash equivalents, together with $1.5 million gross cash proceeds from the February 2022 twelve Various factors affect the Company’s liquidity, including, among others: the level of revenue and gross profit as a result of the cyclicality of the semiconductor industry; the conversion of design opportunities into revenue; market acceptance of existing and new products including solutions based on its eFPGA IP, ArcticLink ® ® S3 Over the longer term, the Company anticipates that sales generated from its new product offerings, existing cash and cash equivalents, together with financial resources from its Revolving Facility with Heritage Bank, assuming renewal of the Revolving Facility or the Company entering into a new debt agreement with an alternative lender prior to the expiration of the revolving line of credit in December 2023, Principles of Consolidation The consolidated financial statements have been prepared in accordance with Generally Accepted Accounting Principles, in the United States of America or ("US GAAP"), and the applicable rules and regulations of the Securities and Exchange Commission, ("SEC"), and include the accounts of QuickLogic and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated. Critical Accounting Policies and Use of Estimates The preparation of these consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosures of contingent assets and liabilities and the reported amounts of revenue and expenses during the period. Actual results could differ from those estimates, particularly in relation to revenue recognition; the allowance for doubtful accounts; sales returns; valuation of long-lived assets including mask sets; valuation of goodwill; capitalized internal-use software and related amortizable lives and intangibles related to the acquisition of SensiML, including the estimated useful lives of acquired intangible assets, valuation of inventories including identification of excess quantities, market value and obsolescence; measurement of stock-based compensation awards; accounting for income taxes and estimating accrued liabilities. The methods, estimates and judgments we use in applying our most critical accountin may Licensed Intellectual Property The Company licenses intellectual property that is incorporated into its products. Costs incurred under license agreements prior to the establishment of technological feasibility are included in research and development expense as incurred. Costs incurred for intellectual property once technological feasibility has been established and that can be used in multiple products are capitalized as a long-term asset. Once a product incorporating licensed intellectual property has production sales, the amount is amortized over the estimated useful life of the asset, generally up to five Revenue Recognition We recognize revenue in accordance with ASC Topic No. 606 10 not 606 Revenue arrangements with customers often include promises to transfer multiple products and services to a customer. Determining whether products and services are considered distinct performance obligations that should be accounted for separately versus together may not not may one may We supply standard products that must be programmed before they can be used in an application. Our products may third Revenue is recognized upon transfer of control of promised products or services to customers in an amount that reflects the consideration we expect to receive in exchange for those products or services. We determine revenue recognition through the following steps: ● Identification of the contract, or contracts, with a customer, ● Identification of the performance obligations in the contract, ● Determination of the transaction price, ● Allocation of the transaction price to the performance obligations in the contract, and ● Recognition of revenue when, or as, we satisfy a performance obligation. As part of its assessment of each contract, the Company evaluates certain factors including the customer’s ability to pay, or credit risk. For each contract, the Company considers the promise to transfer products, each of which is distinct, to be the identified performance obligations. In determining the transaction price, the price stated on the purchase order is typically fixed and represents the net consideration to which the Company expects to be entitled, and therefore there is no one not Product Revenue The Company generates most of its revenue by supplying standard hardware products, which must be programmed before they can be used in an application. The Company’s contracts with customers are generally for product only, and do not The Company recognizes hardware product revenue at the point of time when control of products is transferred to the customers, when the Company’s performance obligation is satisfied, which typically occurs upon shipment from the Company’s manufacturing site or its headquarters. Intellectual Property and Software License Revenue The Company also generates revenue from licensing their intellectual property or IP, software tools and royalties from licensing its technology. The Company recognizes IP and Software License revenue at the point of time when the control of IP or software license has been transferred. Some of the IP and Software Licensing contracts with customers contain multiple performance obligations. For these contracts, the Company accounts for individual performance obligations separately if they are distinct. The transaction price is allocated to the separate performance obligations on a relative standalone selling price basis. The Company determines the standalone selling prices based on our overall pricing objectives, taking into consideration market conditions and other factors, including the value of our contracts, type of the customer, customer tier, type of the technology used, customer demographics, geographic locations, and other factors. There are no Professional Services Revenue Professional Services revenue consists of professional engineering fees associated with custom integration of the Company's technology solutions into its customers’ products. An initial software arrangement may The Company customization services revenue based on the duration of the project and specific terms and deliverables unique to each contract: ● an over time model, measured using the input method such as units of labor ● an over time model measured using the output method such as specific deliverables produced ● Time and Material for professional engineering services For time and material derived revenue, the Company estimates a fully-burdened overhead rate for the labor and any materials required Due to the nature of the work performed in these arrangements, the estimation of the over-time model is complex and involves significant judgment. In the case of the input methods, the key factors reviewed by management to estimate costs to complete each contract is the estimated labor days-effort necessary to complete the project, budgeted hours, hourly cost to the Company, profit margins, and engineering hours at cut-off when projects extend beyond a reporting period. In relation to the output method, key factors reviewed by the Company are the specific deliverables specified in the contracts with customers. The Company has methods and controls in place for tracking labor-days incurred in completing customization and other professional services as well as quantifying changes in estimates. Customization professional engineering services contract revenue inclusive of eFPGA IP and customization was approximately million f or the year ended January 2, 2022. 2021, 2020, 2019, The Company has entered into a revenue contract with a non-affiliate customer, where the customer, will provide cash in addition to shares of common stock as payment in exchange for IP license, know how, and professional engineering services. The customer is a privately-held company, and as such, the common stock is not January 2, 2022, $300,000 9 14. Contract Balances Timing of revenue recognition may Related to the Company's professional services revenue, the Company had Contract assets of approximately $0.3 million included in accounts receivable on its Consolidated Balance Sheet at January 2, 2022 none January 3, 2021. January 2, 2022, none January 3, 2021. 14. Software as a Service Revenue, or SaaS Revenue Software products that are offered to customers with a right to use the hosted software over the contract period without taking the possession of it are billed on a subscription basis. Revenue that are billed on a subscription basis is recognized ratably over the contract period. Maintenance Revenue The Company recognizes revenue from maintenance ratably over the term of the underlying maintenance contract term. Renewals of maintenance contracts create new performance obligations that are satisfied over the term with the revenues recognized ratably over the term. Royalty Revenue The Company recognizes royalty revenue when the later of the following events occurs: (a) The subsequent sale or usage occurs. (b) The performance obligation to which some or all of the sales-based royalty has been allocated has been satisfied Deferred Revenue Receivables are recognized in the period we ship the product. Payment terms on invoiced amounts are based on contractual terms with each customer. When we receive consideration, or such consideration is unconditionally due, prior to transferring goods or services to the customer under the terms of a sales contract, we record deferred revenue, which represents a contract liability. We recognize deferred revenue as net sales once control of goods and/or services have been transferred to the customer and all revenue recognition criteria have been met and any constraints have been resolved. We defer the product costs until recognition of the related revenue occurs. Variable Consideration The Company does not Assets Recognized from Costs to Obtain a Contract with a Customer The Company recognizes an asset for the incremental costs of obtaining a contract with a customer, if it expects the benefit of those costs to be longer than one none 606 January 2, 2022 January 3, 2021 no January 2, 2022, January 3, 2021. Practical Expedients and Exemptions (i) Taxes collected from customers and remitted to government authorities and that are related to the sales of our products are excluded from revenues. (ii) Sales commissions are expensed when incurred because the amortization period would have been one (iii) We do not one We record allowance for sales returns. Amounts recorded for sales returns for the year ended January 2, 2022 January 3, 2021 were and , respectively on the Company's Consolidated Statement of Operations. The allowance for sales returns is based on a historical returns analysis performed on a quarterly basis. Cost of Revenue We record all costs associated with product sales and professional services in cost of revenue. These costs include the cost of materials, contract manufacturing fees, shipping costs and quality assurance. Cost of revenue also includes indirect costs such as warranty, excess and obsolete inventory charges, general overhead costs, depreciation and amortization of certain capitalized software. Cost of revenue related to professional services for fiscal 2021 2020 2019. Valuation of Inventories Inventories are stated at the lower of standard cost or net realizable value. Standard cost approximates actual cost on a first first may Our semiconductor products have historically had an unusually long product life cycle and obsolescence has not may Fair Value The guidance for the fair value option for financial assets and financial liabilities provides companies the irrevocable option to measure many financial assets and liabilities at fair value with changes in fair value recognized in earnings or equity. The Company has not to measure any financial assets or liabilities at fair value that were not The Company holds a non-marketable equity investment in a privately-held, non-affiliated company which is recorded at fair value measured on a non-recurring basis. If an impairment or observable change in fair-value occurs in the period, the changes in fair value are recorded in the consolidated statement of operations. The investment is valued using observable and unobservable inputs or data in an inactive market and the valuation requires significant judgment due to the absence of market prices and inherent lack of liquidity. The estimated fair value is based on quantitative and qualitative factors including subsequent financing activities by the investee. At January 2, 2022, 9. Concentration of Risk The Company’s accounts receivables are denominated in U.S. dollars and are derived primarily from sales to customers located in North America, Asia Pacific, and Europe. The Company performs ongoing credit evaluations of its customers and generally does not 14 Reverse Stock Split On November 26, 2019, 1 1 December 6, 2019. 1 $1.00 January 9, 2020,

Note 2 - Other Relevant Account

Note 2 - Other Relevant Accounting Policies	12 Months Ended
	Jan. 02, 2022
Notes to Financial Statements
Significant Accounting Policies [Text Block]	NOTE 2 Cash Equivalents and Restricted Cash The Company considers all short-term, highly liquid investments with an original or a remaining maturity at purchase of ninety Foreign Currency Transactions All of the Company’s sales and cost of manufacturing are transacted in U.S. dollars. Accordingly, all monetary assets and liabilities of these foreign operations are translated into U.S. dollars at current period-end exchange rates and non-monetary assets and related elements of expense are translated using historical exchange rates. Income and expense elements are translated to U.S. dollars using the average exchange rates in effect during the period. Gains and losses from the foreign currency transactions of these subsidiaries are recorded as interest income and other expense, net in the Consolidated Statements of Operations. The Company conducts a portion of its research and development activities in India and has sales and marketing activities in various countries outside of the United States. Most of these international expenses are incurred in local currency. Foreign currency transaction gains and losses, which are not and 19% of t 2021 2020 2019 2021 2020 2019 not Property and Equipment Property and equipment are stated at cost less accumulated depreciation and amortization. Depreciation is calculated on a straight-line basis over the estimated useful lives of the assets, generally one seven one seven Capitalized Internal-Use Software The Company capitalizes costs related to development of hosted services that the Company provides to its customers and internal use of enterprise-level business and finance software in support of the Company’s operational needs. Costs incurred in the application development phase are capitalized and amortized on a straight-line basis over their useful lives, which are generally five Long-Lived Assets The Company reviews the recoverability of its long-lived assets, such as property and equipment, annually and when events or changes in circumstances occur that indicate that the carrying value of the asset or asset group may not 2021 2020 2019 of , and , respectively. Approximately of the 2020 January 3, 2021. Accounts Receivable Allowance The Company estimates the amount of uncollectible accounts receivable at the end of each reporting period based on the aging of the receivable balance, current and historical customer trends, and communications with its customers. Amounts are written off only after considerable collection efforts have been made and the amounts are determined to be uncollectible. There were no 2021, 2020, 2019 2021 2020 Warranty Costs The Company warrants finished goods against defects in material and workmanship under normal use for twelve not 606. not not 2021, 2020, 2019. Leases The Company accounts for leases under ASC 842 842, not 12 ROU assets represent the Company’s right to use an underlying asset during the reasonably certain lease terms and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. The Company’s lease terms may In accordance with ASU No. 2016 02, March 31, 2019, no 2020, January 2, 2022 approximately million and lease liabilities were approximately million as p 8. Business Combinations The Company recognizes assets acquired (including goodwill and identifiable intangible assets) and liabilities assumed at fair value on the acquisition date. Subsequent changes to the fair value of such assets acquired and liabilities assumed are recognized in earnings, after the expiration of the measurement period, a period not 12 Goodwill and Intangible Assets Goodwill represents the excess fair value of consideration transferred over the fair value of net assets acquired in business combinations. The carrying value of goodwill and indefinite lived intangible assets are not fourth The Company recognized total goodwill of $185,000 in fiscal 2019 12 fourth November 2021 January 2, 2022, no No Intangible assets with finite useful lives are amortized on a straight-line basis over the periods benefited. The Company reviews the recoverability of its long-lived assets when events or changes in circumstances occur that indicate that the carrying value of the asset or asset group may not November 2021 no No Advertising Costs related to advertising and promotion expenditures are charged to “Selling, general and administrative” expense in the consolidated statements of operations as incurred. Costs related to advertising and promotion expenditures were in 2021 , 2020 2019 Stock-Based Compensation The Company accounts for stock-based compensation under the provisions of the amended authoritative guidance, and related interpretations which require the measurement and recognition of expense related to the fair value of stock-based compensation awards. The fair value of stock-based compensation awards is measured at the grant date and re-measured upon modification, as appropriate. The Company uses the Black-Scholes option pricing model to estimate the fair value of employee stock options and rights to purchase shares under the 2019 2009 1999 Using the Black-Scholes pricing model requires us to develop highly subjective assumptions, including the expected term of awards, expected volatility of our stock, expected risk-free interest rate and expected dividend rate over the term of the award. Our expected term of awards is based primarily on our historical experience with similar grants. Our expected stock price volatility for both stock options and ESPP shares is based on the historic volatility of our stock, using the daily average of the opening and closing prices and measured using historical data appropriate for the expected term. The risk-free interest rate assumption approximates the risk-free interest rate of a Treasury Constant Maturity bond with a maturity approximately equal to the expected term of the stock option or ESPP shares. Since we recognize compensation expense only for awards ultimately expected to vest; therefore, we are required to develop an estimate of the historical pre-vest forfeiture experience and apply this to all stock-based awards. The fair value of restricted stock awards, or RSAs, and restricted stock units, or RSUs, is based on the closing price of our common stock on the date of grant. RSA and RSU awards which vest with service are expensed over the requisite service period. RSAs and RSU awards that are expected to vest based on the achievement of a performance goal are expensed over the estimated vesting period, which is estimated by management. We regularly review the assumptions used to compute the fair value of our stock-based awards and we revise our assumptions as appropriate. See Note 13. Accounting for Income Taxes As part of the process of preparing our financial statements, we are required to estimate our income taxes in each of the jurisdictions in which we operate. This process involves estimating our actual current tax exposure together with assessing temporary differences resulting from different tax and accounting treatment of items, such as deferred revenue, allowance for doubtful accounts, the impact of equity awards, depreciation and amortization, and employee-related accruals. These differences result in deferred tax assets and liabilities, which are included on our balance sheets. We must then assess the likelihood that our deferred tax assets will be recovered from future taxable income. To the extent we believe that recovery is not Significant management judgment is required in determining our provision for income taxes, deferred tax assets, liabilities and any valuation allowance recorded against our net deferred tax assets. Our deferred tax assets net of deferred tax liabilities relating to an ROU asset of million, consisted primarily of net operating loss carryforwards, depreciation and amortization, amounted to approximately million, tax effected, as of the end of 2021 . In evaluating our ability to recover our deferred tax assets within the jurisdiction from which they arise, we consider all available positive and negative evidence, including scheduled reversals of deferred tax liabilities, uncertainty of projecting future taxable income and results of recent operations. As of January 2, 2022 , we had federal and state income tax net operating loss, or NOL, carryforwards of approximately million and million, respectively, which will expire at various dates from 2022 2041. 2019 and forward of million can be carried forward indefinitely. We had research credit carryforwards of approximately million for federal and $4.7 million for state income tax purposes as of January 2, 2022 . If not 2022. not not million, tax-effected, as of the end of 2021 , due to uncertainties related to our ability to utilize our U.S. deferred tax assets before they expire. The Company accounts for uncertainty in income taxes using a two first not second 50% one Concentrations of Credit and Suppliers Financial instruments, which potentially subject the Company to concentrations of credit risk, consist principally of cash and cash equivalents and accounts receivable. Cash and cash equivalents are maintained with high quality institutions. The Company’s accounts receivables are denominated in U.S. dollars and are derived primarily from sales to customers located in North America, Europe and Asia Pacific. The Company performs ongoing credit evaluations of its customers and generally does not 14 The Company depends on a limited number of contract manufacturers, subcontractors, and suppliers for wafer fabrication, assembly, programming and test of its devices, and for the supply of programming equipment, and these services are typically provided by one supplier for each of the Company’s devices. The Company generally purchases these single or limited source services through standard purchase orders. Because the Company relies on independent subcontractors to perform these services, it cannot directly control its product delivery schedules, costs or quality levels. The Company’s future success also depends on the financial viability of its independent subcontractors. Comprehensive Income (Loss) Comprehensive income (loss) includes all temporary changes in equity (net assets) during a period from non-owner sources. The Company’s comprehensive loss equaled to net loss for all periods presented. Recently Adopted New Accounting Pronouncements: In December 2019, No. 2019 12, Simplifying the Accounting for Income Taxes 740, 1 2 3 December 15, 2020. No. 2019 12, January 4, 2021, significant impact on its Consolidated Financial Statements. New Accounting Pronouncements Pending Adoption In August 2020, No. 2020 06, Debt—Debt with Conversion and Other Options (Subto 470 20 815 40 December 15, 2023, no December 15, 2020, No. 2020 06 In May 2021, No. 2021 04, Issuer s Accounting for Certain Modifications of Exchanges of Freestanding Equity-Classified Written Call Options, January 1, 2022 not

Note 3 - Net Loss Per Share

Note 3 - Net Loss Per Share	12 Months Ended
	Jan. 02, 2022
Notes to Financial Statements
Earnings Per Share [Text Block]	NOTE 3 Basic net loss per share is computed by dividing net loss available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted net loss per share was computed using the weighted average number of common shares outstanding during the period plus potentially dilutive common shares outstanding during the period under the treasury stock method. In computing diluted net loss per share, the weighted average stock price for the period is used in determining the number of shares assumed to be purchased from the exercise of stock options and warrants. For 2021 , 2020 and 2019 , 660,484 shares, 921,000 shares, and 563,000 shares, respectively, associated with equity awards outstanding and the estimated number of shares to be purchased under the current offering period of the 2009 not the net loss the Company experienced during those years. Warrants to purchase up to 386,000 shares were issued in connection with May 29, 2018 not January 2, 2022 January 3, 2021 as they were also considered anti-dilutive due to the net loss the Company experienced during these periods.

Note 4 - Balance Sheet Componen

Note 4 - Balance Sheet Components	12 Months Ended
	Jan. 02, 2022
Notes to Financial Statements
Supplemental Balance Sheet Disclosures [Text Block]	NOTE 4 January 2, January 3, 2022 2021 (in thousands) Inventories: Raw material $ — $ 191 Work-in-process 1,397 1,842 Finished goods 681 655 $ 2,078 $ 2,688 Other current assets: Prepaid expenses $ 921 $ 884 Other 260 182 $ 1,181 $ 1,066 Property and equipment: Equipment $ 10,341 $ 10,471 Software 1,878 1,783 Furniture and fixtures 32 33 Leasehold improvements 466 466 12,717 12,753 Accumulated depreciation and amortization (12,218 ) (12,205 ) $ 499 $ 548 Capitalized internal-use software: Capitalized software held for internal use $ 1,699 $ 1,166 Accumulated amortization (458 ) (180 ) $ 1,241 $ 986 Accrued liabilities: Employee compensation related accruals 953 762 Other 712 578 $ 1,665 $ 1,340 The Company recorded depreciation and amortization expense of , , and million for the fiscal years 2021 , 2020 and 2019 , respectively. No interest was capitalized for any period presented. Fiscal year, 2021 and 2020 depreciation and amortization of $626,000 and $817,000 respectively, includes approximately and , respectively, of amortization of capitalized internal-use software.

Note 5 - Business Acquisition

Note 5 - Business Acquisition	12 Months Ended
	Jan. 02, 2022
Notes to Financial Statements
Business Combination Disclosure [Text Block]	NOTE 5 SensiML Acquisition On January 3, 2019, SensiML has a software toolkit enabling IoT developers to quickly and easily create smart devices, transforming rich sensors into actionable event detectors. SensiML’s Analytics Toolkit is an end-to-end software suite that provides OEMs a straightforward process for developing pattern matching sensor algorithms using machine learning technology that are optimized for ultra-low power consumption. The SensiML Analytics Toolkit enables OEMs to quickly and easily leverage the power of local AI in edge, endpoint and wearable designs without the need for significant Data Science or Firmware Engineering resources. The results of operations for the Company for the fiscal year ended January 2, 2022 January 3, 2019. January 2, 2022 January 3, 2021 December 29, 2019 For the years ended January 2, 2022 , January 3, 2021 , and December 29, 2019 charges of , , and respectively were attributable to the amortization of purchased intangible assets, were included in the statements of operations for the respective periods. Costs related to the acquisition were in f 2019 Purchase Price Allocation Under the purchase accounting method, the total purchase price was allocated to SensiML’s net tangible and intangible assets based upon their estimated fair values as of the acquisition date. The excess purchase price over the value of the net tangible and identified intangible assets was recorded as goodwill. During the measurement period, which can be no one 2019 Intangible assets associated with the acquisition is primarily attributable to the future technology, market presence and knowledgeable and experienced workforce. The fair value assigned to identifiable intangible assets acquired was determined using the income approach taking into account the Company’s consideration of a number of inputs, including an independent third not not The Stock Purchase Agreement contains customary representations and warranties between the Company and SensiML, who agreed to indemnify each other for certain breaches of representations, warranties, covenants and other specified matters . Approximately in value of the Company’s common stock of the purchase price was placed in escrow as security for post-closing working capital adjustments, which expired on January 2, 2020.

Note 6 - Intangible Assets

Note 6 - Intangible Assets	12 Months Ended
	Jan. 02, 2022
Notes to Financial Statements
Intangible Assets Disclosure [Text Block]	NOTE 6 The following table provides the details of the carrying value of intangible assets recorded from the 2019 January 2, 2022 January 2, 2022 Remaining Useful Life Gross Carrying Amount Accumulated Amortization Net Carrying Amount Developed technology 7 $ 959 $ (287 ) $ 672 Customer relationships — 81 (81 ) — Trade names and trademarks 7 116 (35 ) 81 Total acquired identifiable intangible assets $ 1,156 $ (403 ) $ 753 The following table provides the details of the carrying value of intangible assets recorded from the 2019 January 3, 2021 January 3, 2021 Remaining Useful Life Gross Carrying Amount Accumulated Amortization Net Carrying Amount Developed technology 8 $ 959 $ (192 ) $ 767 Customer relationships 1 81 (81 ) — Trade names and trademarks 8 116 (23 ) 93 Total acquired identifiable intangible assets $ 1,156 $ (296 ) $ 860 The following table provides the details of future annual amortization of intangible assets, based upon the current useful lives at January 2, 2022 Amount Annual Fiscal Years 2022 107 2023 107 2024 107 2025 107 2026 107 Thereafter 218 Total $ 753

Note 7 - Debt Obligations

Note 7 - Debt Obligations	12 Months Ended
	Jan. 02, 2022
Notes to Financial Statements
Debt Disclosure [Text Block]	NOTE 7 Revolving Line of Credit On September 28, 2018, On December 21, 2018, $9.0 On November 6, 2019 one September 28, 2021. one one five one one On December 11, 2020, one September 28, 2022 one one On August 16, 2021, $3.0 On November 16, 2021, December 21, 2018 ( December 31, 2023 December 31, 2021 On both January 2, 2022 January 3, 2021, 3.75%. 1. Heritage Bank has a first Payroll Protection Program Loan On May 6, 2020, The PPP Loan was evidenced by a promissory note (“Note”) dated May 6, 2020, two first six six may no may fourth 2020, January 26, 2021, January 2, 2022.

Note 8 - Leases

Note 8 - Leases	12 Months Ended
	Jan. 02, 2022
Notes to Financial Statements
Lessee, Operating and Finance Leases [Text Block]	NOTE 8 The Company entered into operating leases for office space for its headquarters, domestic and foreign subsidiaries and sales offices. These operating leases generally have lease terms of 1 year to 5 years. Finance leases are primarily for engineering design software, and are generally 2 years to 3 years. For the year ended January 2, 2022 the Company's had balances of right-of-use assets and lease liabilities, on its consolidated lance sheet, of approximately $1.5 million and $1.6 million, respectively, related to the operating leases signed for the premises of its headquarters in San Jose and its subsidiary SensiML in Oregon, and finance leases for engineering design software. During the year ended January 3, 2021 the Company recognized right-of-use assets and lease liabilities of approximately $1.8 millio In October 2018, July 2020. not On February 13, 2019, 2220 95131 five April 15, 2019 In April 2019, March 2021. April 2021 March 2023. The Company leased a 9,400 square foot facility in Bangalore, India for the purpose of software development, which was leased through June 2021.Subsequently, December 2020 . The remaining lease liability of approximately $196,000 related to the prior India office lease is classified within other accrued liabilities at January 2, 2022 January 3, 2021 On July 10, 2020, 2020 . May 2022. In addition, the Company rents sales offices in Europe and Asia under short-term leases. Total rent expense during 2021 2020 2019 The following table provides the activity related to operating and finance leases (in thousands): Fiscal Year Ended Fiscal Year Ended January 2, 2022 January 3, 2021 Operating lease costs: Fixed $ 402 $ 473 Variable — — Short term 23 20 Total $ 425 $ 493 Finance lease costs: Amortization of ROU asset $ 700 $ 315 Interest 69 38 Total $ 769 $ 353 The following table provides the details of supplemental cash flow information (in thousands): Fiscal Year Ended Fiscal Year Ended January 2, 2022 January 3, 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used for operating leases $ 402 $ 497 Operating cash flows used for finance leases 69 38 Financing cash flows used for financing leases 378 270 Total $ 849 $ 805 Right-of-use assets obtained in exchange for obligations: Operating leases $ — $ — Finance leases 1,311 914 Total $ 1,311 $ 914 The following table provides the details of right-of-use assets and lease liabilities (in thousands): January 2, 2022 January 3, 2021 Right-of-use assets: Operating leases $ 809 $ 1,134 Finance leases 720 705 Total $ 1,529 $ 1,839 Lease liabilities: Operating leases $ 873 $ 1,212 Finance leases 690 670 Total $ 1,563 $ 1,882 The following table provides the details of future lease payments for operating and finance leases as of January 2, 2022 Annual Fiscal Years Operating Finance 2022 $ 409 $ 475 2023 421 141 2024 106 106 2025 — — Total lease payments 936 722 Less: Interest 63 32 Present value of lease liabilities $ 873 $ 690 The following table provides the details of lease terms and discount rates: January 2, 2022 Right-of-use assets: Weighted-average remaining lease term (years) Operating leases 2.25 Finance leases 2.15 Weighted-average discount rates: Operating leases 6.00 % Finance leases 4.57 %

Note 9 - Fair Value Measurement

Note 9 - Fair Value Measurements	12 Months Ended
	Jan. 02, 2022
Notes to Financial Statements
Fair Value Disclosures [Text Block]	NOTE 9 Pursuant to the accounting guidance for fair value measurements and its subsequent updates, fair value is defined as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities required or permitted to be recorded at fair value, the Company considers the principal or most advantageous market and it considers assumptions that market participants would use when pricing the asset or liability. The accounting guidance for fair value measurement also specifies a hierarchy of valuation techniques based upon whether the inputs to those valuation techniques reflect assumptions other market participants would use based upon market data obtained from independent sources (observable inputs) or reflect the Company’s own assumption of market participant valuation (unobservable inputs). The fair value hierarchy consists of the following three • Level 1 • Level 2 not • Level 3 one Our cash and cash equivalents balances o f January 2, 2022 January 3, 2021 Investment in Privately-held Non-Affiliate In the third 2021, Since the non-cash consideration are shares of common stock that are not not no, The Company believes that its valuation method for the non-public equity under this arrangement falls under Level 3 Fair Value Measurements at Reporting Date Using Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Assets: Total (Level I) (Level 2) (Level 3) Investment in privately-held non-affiliate $ 300,000 $ — $ — $ 300,000 Total assets $ 300,000 $ — $ — $ — In arriving at the estimated value for the non-cash consideration, the Company utilized inputs relying on significant judgment in accordance with the AICPA Accounting and Valuation Guide, Valuation of Privately Held Company Equity Securities Issued as Compensation ( 2013 Discount for lack of marketability: 34% - 41% Expected Term: 4 - 5 Years Risk Free Interest Rate: 0.75% - 0.92% Dividend: 0.00 Volatility: 63% - 78% Volatility was estimated by utilizing a selected peer group of companies within the customers’ industry with a valuation date as of October 2021. After initial recognition fair value of the non-cash consideration, the Company elected to utilize the practical expedient under ASC 321 321 820. 321 January 2, 2021, no not not 2021

Note 10 - Income Taxes

Note 10 - Income Taxes	12 Months Ended
	Jan. 02, 2022
Notes to Financial Statements
Income Tax Disclosure [Text Block]	NOTE 10 The following table presents the U.S. and foreign components of consolidated loss before income taxes and the provision for (benefit from) income taxes (in thousands): Fiscal Years 2021 2020 2019 Loss before income taxes: U.S. $ (6,461 ) $ (11,170 ) $ (15,813 ) Foreign (36 ) 70 289 Loss before income taxes $ (6,497 ) $ (11,100 ) $ (15,524 ) Provision for (benefit from) income taxes: Current: Federal $ — $ — $ — State 3 3 3 Foreign 22 39 108 Subtotal 25 42 111 Deferred: Federal — — (141 ) State — — (44 ) Foreign 94 9 (6 ) Subtotal 94 9 (191 ) Provision for (benefit from) income taxes $ 119 $ 51 $ (80 ) The following table presents the rate reconciliation between income tax provisions at the U.S. federal statutory rate and the effective rate reflected in the consolidated statements of operations (in thousands): Fiscal Years 2021 2020 2019 Income tax (benefit) at statutory rate $ (1,364 ) $ (2,331 ) $ (3,260 ) State taxes 3 3 (42 ) Foreign taxes 124 34 41 Stock compensation and other permanent differences (155 ) 171 245 PPP Loan Forgiveness (250 ) — — R&D Tax Credits (230 ) (261 ) (286 ) Expired tax attributes 3,304 208 1,085 Future benefit of deferred tax assets not recognized (1,312 ) 2,227 2,277 Other — — (140 ) Provision for (benefit from) income taxes $ 119 $ 51 $ (80 ) Based on the available objective evidence, management believes it is more likely than not not January 2, 2022 may not January 2, January 3, 2022 2021 Deferred tax assets: Net operating losses $ 45,197 $ 43,703 Accruals and reserves 1,347 1,239 Credits carryforward 5,660 5,860 Depreciation and amortization 7,820 9,240 Stock-based compensation 403 485 Operating lease liability 409 469 Gross deferred tax assets 60,836 60,996 Deferred tax liabilities: Right-of-use asset (400 ) (458 ) Withholding tax on future distribution (125 ) — Gross deferred tax assets (525 ) (458 ) Net deferred tax assets 60,311 60,538 Valuation allowance (60,353 ) (60,486 ) Total deferred tax liability (assets) $ (42 ) $ 52 As of January 2, 2022 d m not January 1, 2018 2022 2037, January 1, 2018 not 2028 2041. The Company has research credit carryforwards of appr oximately million for federal and January 2, 2022 not 2023. Events which may not 382 may The Company has not may Foreign withholding taxes associated with the repatriation of earnings of foreign subsidiaries were not 2021 . The Company intends to reinvest these earnings indefinitely in the Company’s foreign subsidiaries. The Company believes that future domestic cash generation will be sufficient to meet future domestic cash needs. The Company has not not Uncertain Tax Positions A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands): January 2, January 3, December 29, 2022 2021 2019 Beginning balance of unrecognized tax benefits $ 2,176 $ 2,117 $ 2,161 Additions (subtractions) for tax positions related to the prior year (7 ) 38 (46 ) Additions for tax positions related to the current year 128 114 88 Lapse of statutes of limitations (178 ) (93 ) (86 ) Ending balance of unrecognized tax benefits $ 2,118 $ 2,176 $ 2,117 Out of million of unrecognized tax benefits, there are no unrecognized tax benefits that would result in a change in the Company's effective tax rate if recognized in future years. The accrued interest and penalties related to uncertain tax positions was not January 2, 2022 , January 3, 2021 and December 29, 2019 . On March 27, 2020, net operating loss carryback periods, alternative minimum tax credit refunds, modifications to the net interest deduction limitations and technical corrections to the tax depreciation methods for qualified improvement property. The Company applied for and received a PPP loan in Q2 2020 January 26, 2021. The Company is not may not twelve The Company is subject to U.S. federal income tax as well as income taxes in many U.S. states and foreign jurisdictions in which the Company operates. The U.S. tax years from 1998

Note 11 - Stockholders' Equity

Note 11 - Stockholders' Equity	12 Months Ended
	Jan. 02, 2022
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	NOTE 11 Common and Preferred Stock As of January 2, 2022 , the Company is authorized to issue million shares of common stock and has million shares of authorized but unissued undesignated preferred stock. Without any further vote or action by the Company’s stockholders, the Board of Directors has the authority to determine the powers, preferences, rights, qualifications, limitations or restrictions granted to or imposed upon any wholly unissued shares of undesignated preferred stock. Issuance of Common Stock On September 22, 2021, September 30, 2021, 3 No. 333 230352 On June 22, 2020, 30 July 21, 2020 On June 21, 2019, third 2019. On March 15, 2019, 3, may, one March 29, 2019. At January 2, 2022 January 3, 2021 January shares of common stock at an exercise price of per share remain outstanding. 60 May 29, 2018

Note 12 - Employee Stock Plans

Note 12 - Employee Stock Plans	12 Months Ended
	Jan. 02, 2022
Notes to Financial Statements
Disclosure of Employee Stock Ownership Plans [Text Block]	NOTE 12 2009 On April 24, 2019, 2009 2019 "2019 ten March 15, 2028. 2009 April 24, 2019. 2019 On April 24, 2019, 2019 "2019 2009 "2009 2019 2009 January 2, 2022 ly shares of t 2019 Options typically vest at a rate of 25% one one forty eighth one one eighth six may Employee Stock Purchase Plan The 2009 "2009 March 2009. 2009 January 2015 February 2017, April 23, 2015 April 26, 2017, 2009 On May 6, 2019, 2009 March 5, 2029. 2009 As of January 2, 2022 , shares wer 2009 2009 six o of an employee’s total compensation (maximum of shares per offering period). The 2009 85% 85%

Note 13 - Stock-based Compensat

Note 13 - Stock-based Compensation	12 Months Ended
	Jan. 02, 2022
Notes to Financial Statements
Share-based Payment Arrangement [Text Block]	NOTE 13 The Company provides stock-based incentive compensation, or awards, to eligible employees and non-employee directors. Awards that may four ten Stock-based compensation expense is recognized in the Company’s consolidated statements of operations and includes compensation expense for the stock-based compensation awards granted or modified subsequent to January 1, 2006, 2021 2020 2019 Fiscal Years 2021 2020 2019 Cost of revenue $ 282 $ 162 $ 78 Research and development 843 670 2,242 Selling, general and administrative 1,401 907 824 Total costs and expenses $ 2,526 $ 1,739 $ 3,144 No 2021 2020 2019 Stock-Based Compensation Award Activity The following table summarizes the shares available for grant under the 2019 Shares Available for Grant Balance at December 29, 2019 272 Authorized 550 Options granted — Options forfeited or expired 65 RSUs granted (816 ) RSUs forfeited 249 Balance at January 3, 2021 320 Authorized 600 Options granted — Options forfeited or expired 31 RSUs granted (619 ) RSUs forfeited 262 Balance at January 2, 2022 594 No 2021, 2020, 2019. Stock Options The following table summarizes stock options outstanding and stock option activity under the 2019 2021 2020 2019 Number of Shares Weighted Average Exercise Price Weighted Average Remaining Term Aggregate Intrinsic Value (in thousands) (in years) (in thousands) Balance outstanding at December 30, 2018 229 $ 30.52 3.70 Granted — — Forfeited or expired (42 ) 24.14 Exercised (1 ) 10.92 Balance outstanding at December 29, 2019 186 32.09 3.32 Granted — — Forfeited or expired (65 ) 38.83 Exercised — — Balance outstanding at January 3, 2021 121 28.46 3.75 Granted — — Forfeited or expired (28 ) 31.68 Exercised — — Balance outstanding at January 2, 2022 93 $ 27.49 3.19 $ — Exercisable and Vested and expected to vest at January 2, 2022 93 $ 27.49 3.19 $ — There was no intrinsic value for the stock options, based on the Company’s closing stock price o f per share January 2, 2022, The total intrinsic value of options exercised during 2021 2020 2019 not 2021 2020 2019 approximately , , and , respe no Total stock-based compensation expense recognized related to stock options was $0, , 2021 2020 2019 y. No 2021 2020 2019 2021 Significant exercise price ranges of options outstanding, related weighted average exercise prices and contractual life information at the end of 2021 Options Outstanding Options Exercisable Range of Exercise Prices Options Outstanding Weighted Average Remaining Contractual Life Weighted Average Exercise Price Options Vested and Exercisable Weighted Average Exercise Price (in thousands) (in years) (in thousands) $12.05 48 4.68 $ 12.05 48 $ 12.05 $30.38 3 0.60 30.38 3 30.38 $31.50 5 0.85 31.5 5 31.50 $32.20 3 1.35 32.2 3 32.20 $40.18 0.4 0.81 40.18 0.4 40.18 $44.80 6 2.96 44.80 6 44.80 $46.62 3 2.35 46.62 3 46.62 $47.46 13 1.94 47.46 13 47.46 $48.72 8 0.35 48.72 8 48.72 $53.48 4 2.38 53.48 4 53.48 $12.05- $53.48 93 3.19 $ 27.49 93 $ 27.49 Valuation Assumptions The Company uses the Black-Scholes option pricing model to estimate the fair value rights to purchase shares under the Company’s 2009 In addition to the assumptions used in the Black-Scholes pricing model, the amended authoritative guidance requires that the Company recognize expense for awards ultimately expected to vest; therefore, the Company is required to develop an estimate of the number of awards expected to be forfeited prior to vesting, or forfeiture rate. The forfeiture rate is estimated based on historical pre-vest cancellation experience and is applied to all share-based awards. Restricted Stock Units The Company grants restricted stock units ("RSU") to employees with various vesting terms. RSUs entitle the holder to receive, at no one SUs was million, 2021 2020 2019 The following table summarizes RSU’s activity under the 2019 2021 2020 2019 RSUs & PRSUs Outstanding Number of Shares Weighted Average Grant Date Fair Value (in thousands) Nonvested at December 30, 2018 183 $ 17.22 Granted 353 10.77 Vested (118 ) 14.48 Forfeited (41 ) — Nonvested at December 29, 2019 377 $ 12.55 Granted 816 3.97 Vested (144 ) 10.41 Forfeited (249 ) 7.93 Nonvested at January 3, 2021 800 $ 4.99 Granted 619 5.81 Vested (586 ) 4.99 Forfeited (265 ) 5.00 Nonvested at January 2, 2022 568 $ 5.86 Employee Stock Purchase Plan The weighted aver age estimated fair value, as defined by the amended authoritative guidance, of rights issued pursuant to the Company’s ESPP during 2021 , 2020 and 2019 was , and , respectively. Sales under the ESPP were 83,605 shares of common stock at an average price per share of $3.14 for 2021 , 20,409 shares of common stock at an average price per share of $2.47 for 2020 , and 24,131 shares of common stock at an average price per share of $9.76 for 2019 . As of January 2, 2022 , shares u 2009 PP of $110,000, 2021 2020 2019 The fair value of rights issued pursuant to the Company’s ESPP was estimated on the commencement date of each offering period using the following weighted average assumptions: Fiscal Years 2021 2020 2019 Expected life (months) 6.0 6.0 6.0 Risk-free interest rate 0.05 % 0.12 % 2.37 % Volatility 74 % 82 % 54 % Dividend yield — — — The methodologies for determining the above values were as follows: • Expected term: The expected term represents the length of the purchase period contained in the ESPP. • Risk-free interest rate: The risk-free interest rate assumption is based upon the risk-free rate of a Treasury Constant Maturity bond with a maturity appropriate for the term of the purchase period. • Volatility: The Company determines expected volatility based on historical volatility of the Company’s common stock for the term of the purchase period. • Dividend Yield: The expected dividend assumption is based on the Company’s intent not

Note 14 - Information Concernin

Note 14 - Information Concerning Product Lines, Geographic Information, Accounts Receivable and Revenue Concentration	12 Months Ended
	Jan. 02, 2022
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	NOTE 14 The Company identifies its business segments based on business activities, management responsibility and geographic location. For all periods presented, the Company operated in a single reportable business segment. The following is a breakdown of revenue by product family (in thousands): Fiscal Years 2021 2020 2019 Revenue by product line (1) : New products $ 7,761 $ 2,782 $ 3,123 Mature products 4,924 5,852 7,187 Total revenue $ 12,685 $ 8,634 $ 10,310 ( 1 New products include all products manufactured on 180 180 2021. 2020 2019 January 2, 2022 January 3, 2021. January 2, 2022, January 3, 2021. The following is a breakdown of revenue by shipment destination (in thousands): Fiscal Years 2021 2020 2019 Revenue by geography: Asia Pacific (1) $ 3,352 $ 2,100 $ 3,049 Europe 2,448 1,501 2,459 North America (2) 6,885 5,033 4,802 Total revenue $ 12,685 $ 8,634 $ 10,310 ( 1 Asia Pacific includes revenue from China $1.1 million or 11% and Japan of $1.8 million or 17% of total revenue in 2019 2018, 2017, ( 2 North America includes revenue from the United States of $4.7 million or 46% of total revenue in 2019, 2018 2017. The following distributors and customers accounted for 10% or more of the Company’s revenue for the periods presented: Fiscal Years 2021 2020 2019 Distributor "A" 15 % 24 % 40 % Distributor "C" 11 % 15 % 13 % Distributor "E" 22 % 19 % * Customer "B" 8 % 10 % 13 % Customer "E" 10 % * 10 % Customer "N" 16 % * * Customer "O" 14 % * * Customer "M" — % 16 % * * Represents less than 10% Note: the amounts related to Distributor in the above table represent sales-in only to those distributors, and Customer information relates to sales out information. As such, sales to a Distributor, may The following distributors and customers accounted for 10% January 2, January 3, 2022 2021 Distributor "A" 42 % * Distributor "C" 17 % * Distributor "E" 22 % * Customer "O" 10 % * Customer "P" — % 67 % Customer "Q" — % 10 % * Represents less than 10% As of January 2, 2022 January 3, 2021 mately 3 % and 4%, respectively, of the Compa

Note 15 - Commitments and Conti

Note 15 - Commitments and Contingencies	12 Months Ended
	Jan. 02, 2022
Notes to Financial Statements
Commitments Disclosure [Text Block]	NOTE 15 Commitments Certain wafer manufacturers require the Company to forecast wafer starts several months in advance. The Company is committed to take delivery of and pay for a portion of forecasted wafer volume. As of the end of 2021 2020 ompany had and The Company has purchase obligations with certain suppliers for the purchase of goods and services entered into in the ordinary course of business. As of January 2, 2022 twelve Litigation From time to time, the Company may not third not may

Note 16 - Subsequent Events

Note 16 - Subsequent Events	12 Months Ended
	Jan. 02, 2022
Notes to Financial Statements
Subsequent Events [Text Block]	NOTE 16 Appointment of New CFO and SVP, Finance On February 1, 2022, 57, February 1, 2022. no February 4, 2022. There are no no no 404 Share Subscription Agreement On February 9, 2022, may no not

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Jan. 02, 2022
Notes to Financial Statements
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]	2. Financial Statement Schedules QuickLogic Corporation Valuation and Qualifying Accounts Allowance for Deferred Tax Assets (in thousands): Balance at Beginning of Period Charged to Costs and Expenses Deductions/ Write-offs Balance at End of Period Fiscal Year 2021 $ 60,538 $ (227 ) $ — $ 60,311 Fiscal Year 2020 $ 58,140 $ 2,398 $ — $ 60,538 Fiscal Year 2019 $ 54,913 $ 3,227 $ — $ 58,140 All other schedules not not

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Jan. 02, 2022
Accounting Policies [Abstract]
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash Equivalents and Restricted Cash The Company considers all short-term, highly liquid investments with an original or a remaining maturity at purchase of ninety
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign Currency Transactions All of the Company’s sales and cost of manufacturing are transacted in U.S. dollars. Accordingly, all monetary assets and liabilities of these foreign operations are translated into U.S. dollars at current period-end exchange rates and non-monetary assets and related elements of expense are translated using historical exchange rates. Income and expense elements are translated to U.S. dollars using the average exchange rates in effect during the period. Gains and losses from the foreign currency transactions of these subsidiaries are recorded as interest income and other expense, net in the Consolidated Statements of Operations. The Company conducts a portion of its research and development activities in India and has sales and marketing activities in various countries outside of the United States. Most of these international expenses are incurred in local currency. Foreign currency transaction gains and losses, which are not and 19% of t 2021 2020 2019 2021 2020 2019 not
Property, Plant and Equipment, Policy [Policy Text Block]	Property and Equipment Property and equipment are stated at cost less accumulated depreciation and amortization. Depreciation is calculated on a straight-line basis over the estimated useful lives of the assets, generally one seven one seven Capitalized Internal-Use Software The Company capitalizes costs related to development of hosted services that the Company provides to its customers and internal use of enterprise-level business and finance software in support of the Company’s operational needs. Costs incurred in the application development phase are capitalized and amortized on a straight-line basis over their useful lives, which are generally five Long-Lived Assets The Company reviews the recoverability of its long-lived assets, such as property and equipment, annually and when events or changes in circumstances occur that indicate that the carrying value of the asset or asset group may not 2021 2020 2019 of , and , respectively. Approximately of the 2020 January 3, 2021.
Accounts Receivable [Policy Text Block]	Accounts Receivable Allowance The Company estimates the amount of uncollectible accounts receivable at the end of each reporting period based on the aging of the receivable balance, current and historical customer trends, and communications with its customers. Amounts are written off only after considerable collection efforts have been made and the amounts are determined to be uncollectible. There were no 2021, 2020, 2019 2021 2020
Standard Product Warranty, Policy [Policy Text Block]	Warranty Costs The Company warrants finished goods against defects in material and workmanship under normal use for twelve not 606. not not 2021, 2020, 2019.
Lessee, Leases [Policy Text Block]	Leases The Company accounts for leases under ASC 842 842, not 12 ROU assets represent the Company’s right to use an underlying asset during the reasonably certain lease terms and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. The Company’s lease terms may In accordance with ASU No. 2016 02, March 31, 2019, no 2020, January 2, 2022 approximately million and lease liabilities were approximately million as p 8.
Business Combinations Policy [Policy Text Block]	Business Combinations The Company recognizes assets acquired (including goodwill and identifiable intangible assets) and liabilities assumed at fair value on the acquisition date. Subsequent changes to the fair value of such assets acquired and liabilities assumed are recognized in earnings, after the expiration of the measurement period, a period not 12
Goodwill and Intangible Assets, Policy [Policy Text Block]	Goodwill and Intangible Assets Goodwill represents the excess fair value of consideration transferred over the fair value of net assets acquired in business combinations. The carrying value of goodwill and indefinite lived intangible assets are not fourth The Company recognized total goodwill of $185,000 in fiscal 2019 12 fourth November 2021 January 2, 2022, no No Intangible assets with finite useful lives are amortized on a straight-line basis over the periods benefited. The Company reviews the recoverability of its long-lived assets when events or changes in circumstances occur that indicate that the carrying value of the asset or asset group may not November 2021 no No
Advertising Cost [Policy Text Block]	Advertising Costs related to advertising and promotion expenditures are charged to “Selling, general and administrative” expense in the consolidated statements of operations as incurred. Costs related to advertising and promotion expenditures were in 2021 , 2020 2019
Share-based Payment Arrangement [Policy Text Block]	Stock-Based Compensation The Company accounts for stock-based compensation under the provisions of the amended authoritative guidance, and related interpretations which require the measurement and recognition of expense related to the fair value of stock-based compensation awards. The fair value of stock-based compensation awards is measured at the grant date and re-measured upon modification, as appropriate. The Company uses the Black-Scholes option pricing model to estimate the fair value of employee stock options and rights to purchase shares under the 2019 2009 1999 Using the Black-Scholes pricing model requires us to develop highly subjective assumptions, including the expected term of awards, expected volatility of our stock, expected risk-free interest rate and expected dividend rate over the term of the award. Our expected term of awards is based primarily on our historical experience with similar grants. Our expected stock price volatility for both stock options and ESPP shares is based on the historic volatility of our stock, using the daily average of the opening and closing prices and measured using historical data appropriate for the expected term. The risk-free interest rate assumption approximates the risk-free interest rate of a Treasury Constant Maturity bond with a maturity approximately equal to the expected term of the stock option or ESPP shares. Since we recognize compensation expense only for awards ultimately expected to vest; therefore, we are required to develop an estimate of the historical pre-vest forfeiture experience and apply this to all stock-based awards. The fair value of restricted stock awards, or RSAs, and restricted stock units, or RSUs, is based on the closing price of our common stock on the date of grant. RSA and RSU awards which vest with service are expensed over the requisite service period. RSAs and RSU awards that are expected to vest based on the achievement of a performance goal are expensed over the estimated vesting period, which is estimated by management. We regularly review the assumptions used to compute the fair value of our stock-based awards and we revise our assumptions as appropriate. See Note 13.
Income Tax, Policy [Policy Text Block]	Accounting for Income Taxes As part of the process of preparing our financial statements, we are required to estimate our income taxes in each of the jurisdictions in which we operate. This process involves estimating our actual current tax exposure together with assessing temporary differences resulting from different tax and accounting treatment of items, such as deferred revenue, allowance for doubtful accounts, the impact of equity awards, depreciation and amortization, and employee-related accruals. These differences result in deferred tax assets and liabilities, which are included on our balance sheets. We must then assess the likelihood that our deferred tax assets will be recovered from future taxable income. To the extent we believe that recovery is not Significant management judgment is required in determining our provision for income taxes, deferred tax assets, liabilities and any valuation allowance recorded against our net deferred tax assets. Our deferred tax assets net of deferred tax liabilities relating to an ROU asset of million, consisted primarily of net operating loss carryforwards, depreciation and amortization, amounted to approximately million, tax effected, as of the end of 2021 . In evaluating our ability to recover our deferred tax assets within the jurisdiction from which they arise, we consider all available positive and negative evidence, including scheduled reversals of deferred tax liabilities, uncertainty of projecting future taxable income and results of recent operations. As of January 2, 2022 , we had federal and state income tax net operating loss, or NOL, carryforwards of approximately million and million, respectively, which will expire at various dates from 2022 2041. 2019 and forward of million can be carried forward indefinitely. We had research credit carryforwards of approximately million for federal and $4.7 million for state income tax purposes as of January 2, 2022 . If not 2022. not not million, tax-effected, as of the end of 2021 , due to uncertainties related to our ability to utilize our U.S. deferred tax assets before they expire. The Company accounts for uncertainty in income taxes using a two first not second 50% one
Concentration Risk, Credit Risk, Policy [Policy Text Block]	Concentrations of Credit and Suppliers Financial instruments, which potentially subject the Company to concentrations of credit risk, consist principally of cash and cash equivalents and accounts receivable. Cash and cash equivalents are maintained with high quality institutions. The Company’s accounts receivables are denominated in U.S. dollars and are derived primarily from sales to customers located in North America, Europe and Asia Pacific. The Company performs ongoing credit evaluations of its customers and generally does not 14 The Company depends on a limited number of contract manufacturers, subcontractors, and suppliers for wafer fabrication, assembly, programming and test of its devices, and for the supply of programming equipment, and these services are typically provided by one supplier for each of the Company’s devices. The Company generally purchases these single or limited source services through standard purchase orders. Because the Company relies on independent subcontractors to perform these services, it cannot directly control its product delivery schedules, costs or quality levels. The Company’s future success also depends on the financial viability of its independent subcontractors.
Comprehensive Income, Policy [Policy Text Block]	Comprehensive Income (Loss) Comprehensive income (loss) includes all temporary changes in equity (net assets) during a period from non-owner sources. The Company’s comprehensive loss equaled to net loss for all periods presented.
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Adopted New Accounting Pronouncements: In December 2019, No. 2019 12, Simplifying the Accounting for Income Taxes 740, 1 2 3 December 15, 2020. No. 2019 12, January 4, 2021, significant impact on its Consolidated Financial Statements. New Accounting Pronouncements Pending Adoption In August 2020, No. 2020 06, Debt—Debt with Conversion and Other Options (Subto 470 20 815 40 December 15, 2023, no December 15, 2020, No. 2020 06 In May 2021, No. 2021 04, Issuer s Accounting for Certain Modifications of Exchanges of Freestanding Equity-Classified Written Call Options, January 1, 2022 not

Note 4 - Balance Sheet Compon_2

Note 4 - Balance Sheet Components (Tables)	12 Months Ended
	Jan. 02, 2022
Notes Tables
Condensed Balance Sheet [Table Text Block]	January 2, January 3, 2022 2021 (in thousands) Inventories: Raw material $ — $ 191 Work-in-process 1,397 1,842 Finished goods 681 655 $ 2,078 $ 2,688 Other current assets: Prepaid expenses $ 921 $ 884 Other 260 182 $ 1,181 $ 1,066 Property and equipment: Equipment $ 10,341 $ 10,471 Software 1,878 1,783 Furniture and fixtures 32 33 Leasehold improvements 466 466 12,717 12,753 Accumulated depreciation and amortization (12,218 ) (12,205 ) $ 499 $ 548 Capitalized internal-use software: Capitalized software held for internal use $ 1,699 $ 1,166 Accumulated amortization (458 ) (180 ) $ 1,241 $ 986 Accrued liabilities: Employee compensation related accruals 953 762 Other 712 578 $ 1,665 $ 1,340

Note 6 - Intangible Assets (Tab

Note 6 - Intangible Assets (Tables)	12 Months Ended
	Jan. 02, 2022
Notes Tables
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Amount Annual Fiscal Years 2022 107 2023 107 2024 107 2025 107 2026 107 Thereafter 218 Total $ 753
Sensi ML [Member]
Notes Tables
Schedule of Finite-Lived Intangible Assets [Table Text Block]	January 2, 2022 Remaining Useful Life Gross Carrying Amount Accumulated Amortization Net Carrying Amount Developed technology 7 $ 959 $ (287 ) $ 672 Customer relationships — 81 (81 ) — Trade names and trademarks 7 116 (35 ) 81 Total acquired identifiable intangible assets $ 1,156 $ (403 ) $ 753 January 3, 2021 Remaining Useful Life Gross Carrying Amount Accumulated Amortization Net Carrying Amount Developed technology 8 $ 959 $ (192 ) $ 767 Customer relationships 1 81 (81 ) — Trade names and trademarks 8 116 (23 ) 93 Total acquired identifiable intangible assets $ 1,156 $ (296 ) $ 860

Note 8 - Leases (Tables)

Note 8 - Leases (Tables)	12 Months Ended
	Jan. 02, 2022
Notes Tables
Lease, Cost [Table Text Block]	Fiscal Year Ended Fiscal Year Ended January 2, 2022 January 3, 2021 Operating lease costs: Fixed $ 402 $ 473 Variable — — Short term 23 20 Total $ 425 $ 493 Finance lease costs: Amortization of ROU asset $ 700 $ 315 Interest 69 38 Total $ 769 $ 353
Lessee, Leases, Supplemental Cash Flow Information [Table Text Block]	Fiscal Year Ended Fiscal Year Ended January 2, 2022 January 3, 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used for operating leases $ 402 $ 497 Operating cash flows used for finance leases 69 38 Financing cash flows used for financing leases 378 270 Total $ 849 $ 805 Right-of-use assets obtained in exchange for obligations: Operating leases $ — $ — Finance leases 1,311 914 Total $ 1,311 $ 914
Schedule of Right of Use Assets and Lease Liabilities [Table Text Block]	January 2, 2022 January 3, 2021 Right-of-use assets: Operating leases $ 809 $ 1,134 Finance leases 720 705 Total $ 1,529 $ 1,839 Lease liabilities: Operating leases $ 873 $ 1,212 Finance leases 690 670 Total $ 1,563 $ 1,882
Schedule of Future Lease Payments for Leases [Table Text Block]	Annual Fiscal Years Operating Finance 2022 $ 409 $ 475 2023 421 141 2024 106 106 2025 — — Total lease payments 936 722 Less: Interest 63 32 Present value of lease liabilities $ 873 $ 690
Schedule of Lease Terms and Weighted Average Discount Rate [Table Text Block]	January 2, 2022 Right-of-use assets: Weighted-average remaining lease term (years) Operating leases 2.25 Finance leases 2.15 Weighted-average discount rates: Operating leases 6.00 % Finance leases 4.57 %

Note 9 - Fair Value Measureme_2

Note 9 - Fair Value Measurements (Tables)	12 Months Ended
	Jan. 02, 2022
Notes Tables
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	Fair Value Measurements at Reporting Date Using Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Assets: Total (Level I) (Level 2) (Level 3) Investment in privately-held non-affiliate $ 300,000 $ — $ — $ 300,000 Total assets $ 300,000 $ — $ — $ —

Note 10 - Income Taxes (Tables)

Note 10 - Income Taxes (Tables)	12 Months Ended
	Jan. 02, 2022
Notes Tables
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	Fiscal Years 2021 2020 2019 Loss before income taxes: U.S. $ (6,461 ) $ (11,170 ) $ (15,813 ) Foreign (36 ) 70 289 Loss before income taxes $ (6,497 ) $ (11,100 ) $ (15,524 ) Provision for (benefit from) income taxes: Current: Federal $ — $ — $ — State 3 3 3 Foreign 22 39 108 Subtotal 25 42 111 Deferred: Federal — — (141 ) State — — (44 ) Foreign 94 9 (6 ) Subtotal 94 9 (191 ) Provision for (benefit from) income taxes $ 119 $ 51 $ (80 )
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	Fiscal Years 2021 2020 2019 Income tax (benefit) at statutory rate $ (1,364 ) $ (2,331 ) $ (3,260 ) State taxes 3 3 (42 ) Foreign taxes 124 34 41 Stock compensation and other permanent differences (155 ) 171 245 PPP Loan Forgiveness (250 ) — — R&D Tax Credits (230 ) (261 ) (286 ) Expired tax attributes 3,304 208 1,085 Future benefit of deferred tax assets not recognized (1,312 ) 2,227 2,277 Other — — (140 ) Provision for (benefit from) income taxes $ 119 $ 51 $ (80 )
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	January 2, January 3, 2022 2021 Deferred tax assets: Net operating losses $ 45,197 $ 43,703 Accruals and reserves 1,347 1,239 Credits carryforward 5,660 5,860 Depreciation and amortization 7,820 9,240 Stock-based compensation 403 485 Operating lease liability 409 469 Gross deferred tax assets 60,836 60,996 Deferred tax liabilities: Right-of-use asset (400 ) (458 ) Withholding tax on future distribution (125 ) — Gross deferred tax assets (525 ) (458 ) Net deferred tax assets 60,311 60,538 Valuation allowance (60,353 ) (60,486 ) Total deferred tax liability (assets) $ (42 ) $ 52
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]	January 2, January 3, December 29, 2022 2021 2019 Beginning balance of unrecognized tax benefits $ 2,176 $ 2,117 $ 2,161 Additions (subtractions) for tax positions related to the prior year (7 ) 38 (46 ) Additions for tax positions related to the current year 128 114 88 Lapse of statutes of limitations (178 ) (93 ) (86 ) Ending balance of unrecognized tax benefits $ 2,118 $ 2,176 $ 2,117

Note 13 - Stock-based Compens_2

Note 13 - Stock-based Compensation (Tables)	12 Months Ended
	Jan. 02, 2022
Notes Tables
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]	Fiscal Years 2021 2020 2019 Cost of revenue $ 282 $ 162 $ 78 Research and development 843 670 2,242 Selling, general and administrative 1,401 907 824 Total costs and expenses $ 2,526 $ 1,739 $ 3,144
Share-based Payment Arrangement, Activity [Table Text Block]	Shares Available for Grant Balance at December 29, 2019 272 Authorized 550 Options granted — Options forfeited or expired 65 RSUs granted (816 ) RSUs forfeited 249 Balance at January 3, 2021 320 Authorized 600 Options granted — Options forfeited or expired 31 RSUs granted (619 ) RSUs forfeited 262 Balance at January 2, 2022 594
Share-based Payment Arrangement, Option, Activity [Table Text Block]	Number of Shares Weighted Average Exercise Price Weighted Average Remaining Term Aggregate Intrinsic Value (in thousands) (in years) (in thousands) Balance outstanding at December 30, 2018 229 $ 30.52 3.70 Granted — — Forfeited or expired (42 ) 24.14 Exercised (1 ) 10.92 Balance outstanding at December 29, 2019 186 32.09 3.32 Granted — — Forfeited or expired (65 ) 38.83 Exercised — — Balance outstanding at January 3, 2021 121 28.46 3.75 Granted — — Forfeited or expired (28 ) 31.68 Exercised — — Balance outstanding at January 2, 2022 93 $ 27.49 3.19 $ — Exercisable and Vested and expected to vest at January 2, 2022 93 $ 27.49 3.19 $ —
Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]	Options Outstanding Options Exercisable Range of Exercise Prices Options Outstanding Weighted Average Remaining Contractual Life Weighted Average Exercise Price Options Vested and Exercisable Weighted Average Exercise Price (in thousands) (in years) (in thousands) $12.05 48 4.68 $ 12.05 48 $ 12.05 $30.38 3 0.60 30.38 3 30.38 $31.50 5 0.85 31.5 5 31.50 $32.20 3 1.35 32.2 3 32.20 $40.18 0.4 0.81 40.18 0.4 40.18 $44.80 6 2.96 44.80 6 44.80 $46.62 3 2.35 46.62 3 46.62 $47.46 13 1.94 47.46 13 47.46 $48.72 8 0.35 48.72 8 48.72 $53.48 4 2.38 53.48 4 53.48 $12.05- $53.48 93 3.19 $ 27.49 93 $ 27.49
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]	RSUs & PRSUs Outstanding Number of Shares Weighted Average Grant Date Fair Value (in thousands) Nonvested at December 30, 2018 183 $ 17.22 Granted 353 10.77 Vested (118 ) 14.48 Forfeited (41 ) — Nonvested at December 29, 2019 377 $ 12.55 Granted 816 3.97 Vested (144 ) 10.41 Forfeited (249 ) 7.93 Nonvested at January 3, 2021 800 $ 4.99 Granted 619 5.81 Vested (586 ) 4.99 Forfeited (265 ) 5.00 Nonvested at January 2, 2022 568 $ 5.86
Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]	Fiscal Years 2021 2020 2019 Expected life (months) 6.0 6.0 6.0 Risk-free interest rate 0.05 % 0.12 % 2.37 % Volatility 74 % 82 % 54 % Dividend yield — — —

Note 14 - Information Concern_2

Note 14 - Information Concerning Product Lines, Geographic Information, Accounts Receivable and Revenue Concentration (Tables)	12 Months Ended
	Jan. 02, 2022
Notes Tables
Revenue from External Customers by Products and Services [Table Text Block]	Fiscal Years 2021 2020 2019 Revenue by product line (1) : New products $ 7,761 $ 2,782 $ 3,123 Mature products 4,924 5,852 7,187 Total revenue $ 12,685 $ 8,634 $ 10,310
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	Fiscal Years 2021 2020 2019 Revenue by geography: Asia Pacific (1) $ 3,352 $ 2,100 $ 3,049 Europe 2,448 1,501 2,459 North America (2) 6,885 5,033 4,802 Total revenue $ 12,685 $ 8,634 $ 10,310
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]	Fiscal Years 2021 2020 2019 Distributor "A" 15 % 24 % 40 % Distributor "C" 11 % 15 % 13 % Distributor "E" 22 % 19 % * Customer "B" 8 % 10 % 13 % Customer "E" 10 % * 10 % Customer "N" 16 % * * Customer "O" 14 % * * Customer "M" — % 16 % * January 2, January 3, 2022 2021 Distributor "A" 42 % * Distributor "C" 17 % * Distributor "E" 22 % * Customer "O" 10 % * Customer "P" — % 67 % Customer "Q" — % 10 %

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Accounts (Tables)	12 Months Ended
	Jan. 02, 2022
Notes Tables
Summary of Valuation Allowance [Table Text Block]	Allowance for Deferred Tax Assets (in thousands): Balance at Beginning of Period Charged to Costs and Expenses Deductions/ Write-offs Balance at End of Period Fiscal Year 2021 $ 60,538 $ (227 ) $ — $ 60,311 Fiscal Year 2020 $ 58,140 $ 2,398 $ — $ 60,538 Fiscal Year 2019 $ 54,913 $ 3,227 $ — $ 58,140

Note 1 - The Company and Basi_2

Note 1 - The Company and Basis of Presentation (Details Textual)		Feb. 09, 2022USD ($)$ / sharesshares	Nov. 16, 2021USD ($)	Sep. 30, 2021USD ($)shares	Sep. 22, 2021shares	Dec. 11, 2020	Jun. 22, 2020USD ($)$ / sharesshares	Dec. 06, 2019	Nov. 26, 2019	Nov. 25, 2019	Nov. 06, 2019USD ($)	Jun. 21, 2019USD ($)$ / sharesshares	Feb. 28, 2022USD ($)shares	Jul. 21, 2020USD ($)shares	Jan. 02, 2022USD ($)$ / sharesshares	Jan. 03, 2021USD ($)$ / sharesshares	Dec. 29, 2019USD ($)shares	Aug. 16, 2021USD ($)	Dec. 21, 2018USD ($)	Sep. 28, 2018USD ($)
Restructuring Costs, Total															$ 0	$ 753,000	$ 0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Ending Balance															19,605,000	22,748,000
Line of Credit, Current															$ 15,000,000	$ 15,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares															$ 0.001	$ 0.001
Proceeds from Issuance of Common Stock															$ 1,342,000	$ 9,296,000	9,437,000
Payments of Stock Issuance Costs															45,000	1,147,000	1,181,000
Revenue from Contract with Customer, Excluding Assessed Tax, Total	[1]														12,685,000	8,634,000	10,310,000
Contract with Customer, Liability, Current															455,000	52,000
Revenue from Contract with Customer, Valuation Allowances And Reserves, Sales Return															13,000	30,000
Equity Securities without Readily Determinable Fair Value, Amount															300,000	0
Reverse Stock Split Ratio, Authorized									15	5
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio								14
Non-marketable Equity Investment [Member] | Fair Value, Nonrecurring [Member]
Equity Securities without Readily Determinable Fair Value, Amount															300,000
Customized Engineering Services [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total															2,700,000
Engineering Services [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total															1,500,000	300,000	$ 0
Professional Services [Member]
Contract with Customer, Asset, after Allowance for Credit Loss, Current, Total															250,000
Contract with Customer, Liability, Current															300,000	0
Cost of Revenue, Total															400,000
Professional Services [Member] | Accounts Receivable [Member]
Contract with Customer, Asset, after Allowance for Credit Loss, Current, Total															$ 300,000	$ 0
Intellectual Property [Member]
Finite-Lived Intangible Asset, Useful Life (Year)															5 years
Underwritten Public Offering [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares							$ 0.001
Proceeds from Issuance of Common Stock							$ 8,800,000					$ 8,000,000		$ 8,100,000
Payments of Stock Issuance Costs							$ 1,100,000
Exercise of Option for Overallotment of Shares by Underwriters [Member]
Proceeds from Issuance of Common Stock														496,000
Payments of Stock Issuance Costs														$ 52,000
Share Subscription Agreement [Member]
Payments of Stock Issuance Costs				$ 45,000
Proceeds from Issuance of Common Stock, Net				$ 1,000,000
Registered Direct Offering [Member] | Subsequent Event [Member]
Stock Issued During Period, Shares, New Issues (in shares) | shares													310,000
Proceeds from Issuance of Common Stock													$ 1,500,000
Common Stock [Member]
Stock Issued During Period, Shares, New Issues (in shares) | shares															198,000	2,642,000	1,314,000
Common Stock [Member] | Underwritten Public Offering [Member]
Stock Issued During Period, Shares, New Issues (in shares) | shares							2,500,000					1,300,000
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares							$ 0.001					$ 0.001
Shares Issued, Price Per Share (in dollars per share) | $ / shares							$ 3.50					$ 7
Common Stock [Member] | Exercise of Option for Overallotment of Shares by Underwriters [Member]
Stock Issued During Period, Shares, New Issues (in shares) | shares							375,000					171,429		141,733
Common Stock [Member] | Share Subscription Agreement [Member]
Stock Issued During Period, Shares, New Issues (in shares) | shares				73,664	125,000
Common Stock [Member] | Registered Direct Offering [Member] | Subsequent Event [Member]
Stock Issued During Period, Shares, New Issues (in shares) | shares		310,000
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares		$ 0.001
Shares Issued, Price Per Share (in dollars per share) | $ / shares		$ 4.78
Proceeds from Issuance of Common Stock		$ 1,500,000
Heritage Bank of Commerce [Member] | Revolving Credit Facility [Member]
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Ending Balance															$ 19,600,000
Line of Credit, Current															$ 15,000,000	$ 15,000,000
Line of Credit Facility, Maximum Borrowing Capacity																			$ 15,000,000	$ 9,000,000
Minimum Cash Required for Covenant Related to Credit Facility											$ 3,000,000							$ 3,000,000	$ 3,000,000
Line of Credit Facility, Expiration Period (Year)						1 year					1 year
Debt Instrument, Interest Rate, Stated Percentage											5.50%
Line of Credit Facility, Commitment Fee Amount			$ 45,000
Debt Instrument, Interest Rate, Effective Percentage															3.75%	3.75%
Heritage Bank of Commerce [Member] | Revolving Credit Facility [Member] | Prime Rate [Member]
Debt Instrument, Basis Spread on Variable Rate						0.50%					0.50%
[1]	New products include all products manufactured on 180 nanometer or smaller semiconductor processes, eFPGA IP license, professional services, QuickAI and SensiML AI software as a service (SaaS) revenues. Mature products include all products produced on semiconductor processes larger than 180 nanometers. New product revenues of $7.8 million includes revenues from in eFPGA IP license of $1.1 million and professional engineering services of $1.5 million for fiscal 2021. For fiscal years 2020 and 2019 the Company recognized $0.3 million and $0, respectively, in revenues for professional engineering services. Related to the Company's professional services revenue, the Company had Contract assets of approximately $250 thousand included in accounts receivable on its Consolidated Balance Sheet at January 2, 2022 and none at January 3, 2021. Additionally, at January 2, 2022, the Company had contract liabilities, related to its professional services, of $300 thousand included in deferred revenue on its Consolidated Balance Sheet and none at January 3, 2021.

Note 2 - Other Relevant Accou_2

Note 2 - Other Relevant Accounting Policies (Details Textual) - USD ($)	1 Months Ended	12 Months Ended
	Nov. 30, 2021	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019	Mar. 31, 2019
Operating Expenses, Denominated in Foreign Currency, Percent		21.00%	18.00%	19.00%
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property		$ 5,000	$ (44,000)	$ (4,000)
Accounts Receivable, Allowance for Credit Loss, Ending Balance		62,000	0
Operating and Finance Lease, Right of Use Asset		1,529,000	1,839,000		$ 975,000
Operating and Finance Lease Liability		1,563,000	1,882,000		$ 939,000
Goodwill, Ending Balance		185,000	185,000
Goodwill, Impairment Loss		0
Impairment of Intangible Assets, Finite-lived	$ 0	0
Deferred Tax Assets, Right-of-use Assets		400,000
Deferred Tax Assets, Gross, Total		60,836,000	60,996,000
Deferred Tax Assets, Valuation Allowance, Total		$ 60,353,000	60,486,000
Number of suppliers		1
Domestic Tax Authority [Member]
Operating Loss Carryforwards, Subject to Expiration		$ 183,900,000
Tax Credit Carryforward, Not Subject to Expiration				55,300,000
Tax Credit Carryforward, Amount		3,700,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards, Subject to Expiration		94,400,000
Tax Credit Carryforward, Amount		4,700,000
Sensi ML [Member]
Goodwill, Ending Balance				185,000
Other Current Assets [Member]
Operating Lease, Right-of-Use Asset		1,500,000
Other Liabilities [Member]
Operating Lease, Liability, Total		1,600,000
Restructuring Charges [Member]
Asset Impairment Charges, Total			35,000
Restructuring Charges [Member] | INDIA
Operating Lease, Impairment Loss			93,000
Selling, General and Administrative Expenses [Member]
Marketing and Advertising Expense, Total		$ 47,000	$ 76,000	$ 146,000
Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)		1 year
Minimum [Member] | Leasehold Improvements [Member]
Property, Plant and Equipment, Useful Life (Year)		1 year
Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)		7 years
Finite-Lived Intangible Asset, Useful Life (Year)		5 years
Maximum [Member] | Leasehold Improvements [Member]
Property, Plant and Equipment, Useful Life (Year)		7 years

Note 3 - Net Loss Per Share (De

Note 3 - Net Loss Per Share (Details Textual) - shares	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019	May 29, 2018
Common Stock [Member] | Maximum [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)				386,000
Share-based Payment Arrangement [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	660,484	921,000	563,000

Note 4 - Balance Sheet Compon_3

Note 4 - Balance Sheet Components (Details Textual) - USD ($)	12 Months Ended
	Jan. 03, 2022	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Depreciation, Amortization and Accretion, Net, Total		$ 626,000	$ 817,000	$ 1,201,000
Interest Costs Capitalized		$ 0
Capitalized Computer Software, Amortization	$ 458,000		$ 148,000

Note 4 - Balance Sheet Compon_4

Note 4 - Balance Sheet Components - Balance Sheet Components (Details) - USD ($) $ in Thousands	Jan. 02, 2022	Jan. 03, 2021
Inventories:
Raw material	$ 0	$ 191
Work-in-process	1,397	1,842
Finished goods	681	655
Inventory, Net, Total	2,078	2,688
Other current assets:
Prepaid expenses	921	884
Other	260	182
Prepaid Expense and Other Assets, Current	1,181	1,066
Property and equipment:
Property and equipment, gross	12,717	12,753
Accumulated depreciation and amortization	(12,218)	(12,205)
Property, Plant and Equipment, Net, Ending Balance	499	548
Capitalized internal-use software:
Capitalized software held for internal use	1,699	1,166
Accumulated amortization	(458)	(180)
Capitalized Computer Software, Net, Ending Balance	1,241	986
Accrued liabilities:
Employee compensation related accruals	953	762
Other	712	578
Accrued Liabilities, Current, Total	1,665	1,340
Equipment [Member]
Property and equipment:
Property and equipment, gross	10,341	10,471
Software [Member]
Property and equipment:
Property and equipment, gross	1,878	1,783
Furniture and Fixtures [Member]
Property and equipment:
Property and equipment, gross	32	33
Leasehold Improvements [Member]
Property and equipment:
Property and equipment, gross	$ 466	$ 466

Note 5 - Business Acquisition (

Note 5 - Business Acquisition (Details Textual) - USD ($)	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019	Jan. 02, 2020
Goodwill, Ending Balance	$ 185,000	$ 185,000
Sensi ML [Member]
Revenues, Total	184,000	175,000	$ 126,000
Amortization of Intangible Assets, Total	$ 107,000	$ 148,000	148,000
Business Combination, Acquisition Related Costs			104,000
Goodwill, Ending Balance			$ 185,000
Escrow Deposit				$ 200,000

Note 6 - Intangible Assets - Sc

Note 6 - Intangible Assets - Schedule of Carrying Value of Intangible Assets (Details) - USD ($) $ in Thousands	Jan. 03, 2021	Jan. 02, 2022
Net Carrying Amount		$ 753
Sensi ML [Member]
Gross Carrying Amount	$ 1,156	1,156
Accumulated Amortization	(296)	(403)
Net Carrying Amount	$ 860	$ 753
Sensi ML [Member] | Developed Technology Rights [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	8 years	7 years
Gross Carrying Amount	$ 959	$ 959
Accumulated Amortization	(192)	(287)
Net Carrying Amount	$ 767	672
Sensi ML [Member] | Customer Relationships [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	1 year
Gross Carrying Amount	$ 81	81
Accumulated Amortization	(81)	(81)
Net Carrying Amount	$ 0	$ 0
Sensi ML [Member] | Trademarks and Trade Names [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	8 years	7 years
Gross Carrying Amount	$ 116	$ 116
Accumulated Amortization	(23)	(35)
Net Carrying Amount	$ 93	$ 81

Note 6 - Intangible Assets - _2

Note 6 - Intangible Assets - Schedule of Expected Future Annual Amortization of Intangible Assets (Details) $ in Thousands	Jan. 02, 2022USD ($)
2022	$ 107
2023	107
2024	107
2025	107
2026	107
Thereafter	218
Total	$ 753

Note 7 - Debt Obligations (Deta

Note 7 - Debt Obligations (Details Textual) - USD ($)	Nov. 16, 2021	Dec. 11, 2020	Nov. 06, 2019	Jan. 02, 2022	Aug. 16, 2021	Jan. 03, 2021	May 06, 2020	Dec. 21, 2018	Sep. 28, 2018
Line of Credit, Current				$ 15,000,000		$ 15,000,000
Paycheck Protection Program [Member]
Debt Instrument, Face Amount						1,200,000
Heritage Bank of Commerce [Member] | Paycheck Protection Program [Member]
Debt Instrument, Interest Rate, Stated Percentage							1.00%
Debt Instrument, Face Amount							$ 1,200,000
Heritage Bank of Commerce [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity								$ 15,000,000	$ 9,000,000
Minimum Cash Required for Covenant Related to Credit Facility			$ 3,000,000		$ 3,000,000			$ 3,000,000
Line of Credit Facility, Expiration Period (Year)		1 year	1 year
Debt Instrument, Interest Rate, Stated Percentage			5.50%
Non-refundable Facility Fees	$ 45,000
Line of Credit, Current				$ 15,000,000		$ 15,000,000
Debt Instrument, Interest Rate, Effective Percentage				3.75%		3.75%
Heritage Bank of Commerce [Member] | Revolving Credit Facility [Member] | Prime Rate [Member]
Debt Instrument, Basis Spread on Variable Rate		0.50%	0.50%

Note 8 - Leases (Details Textua

Note 8 - Leases (Details Textual)	12 Months Ended
	Jan. 02, 2022USD ($)ft²	Jan. 03, 2021USD ($)	Dec. 29, 2019USD ($)	Jun. 30, 2021ft²	Apr. 30, 2019ft²	Mar. 31, 2019USD ($)	Feb. 13, 2019ft²
Operating and Finance Lease, Right of Use Asset	$ 1,529,000	$ 1,839,000				$ 975,000
Operating and Finance Lease Liability	1,563,000	1,882,000				$ 939,000
Finance Lease, Liability, Payment, Due, Total	722,000
Operating Lease, Expense	425,000	$ 493,000	$ 798,000
Office In California [Member]
Lessee, Operating Lease, Term of Contract (Year)							5 years
Area of Real Estate Property (Square Foot) | ft²							24,164
Beaverton Oregon [Member]
Area of Real Estate Property (Square Foot) | ft²					705
Office in India [Member]
Area of Real Estate Property (Square Foot) | ft²				9,400
Finance Lease, Liability, Payment, Due, Total	$ 196,000
Office Premises in India [Member]
Lessee, Operating Lease, Term of Contract (Year)	11 months
Area of Real Estate Property (Square Foot) | ft²	1,100
Minimum [Member]
Lessee, Operating Lease, Term of Contract (Year)	1 year
Lessee, Finance Lease, Term of Contract (Year)	2 years
Maximum [Member]
Lessee, Operating Lease, Term of Contract (Year)	5 years
Lessee, Finance Lease, Term of Contract (Year)	3 years

Note 8 - Leases - Summary of Op

Note 8 - Leases - Summary of Operating and Finance Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021
Fixed	$ 402	$ 473
Variable	0	0
Short term	23	20
Total	425	493
Amortization of ROU asset	700	315
Interest	69	38
Total	$ 769	$ 353

Note 8 - Leases - Summary of Su

Note 8 - Leases - Summary of Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Operating cash flows used for operating leases	$ 402	$ 497
Operating cash flows used for finance leases	69	38
Financing cash flows used for financing leases	378	270	$ 365
Total	849	805
Operating leases	0	0
Finance leases	1,311	914
Total	$ 1,311	$ 914

Note 8 - Leases - Details of Ri

Note 8 - Leases - Details of Right-of-Use Assets and Lease Liabilities (Details) - USD ($)	Jan. 02, 2022	Jan. 03, 2021	Mar. 31, 2019
Total	$ 1,529,000	$ 1,839,000	$ 975,000
Total	1,563,000	1,882,000	$ 939,000
Right of Use Assets, Net [Member]
Operating Lease, Right-of-Use Asset	809,000	1,134,000
Finance leases	720,000	705,000
Current and Lease Liabilities - Non-current [Member]
Operating Lease, Liability, Total	873,000	1,212,000
Finance leases	$ 690,000	$ 670,000

Note 8 - Leases - Schedule of F

Note 8 - Leases - Schedule of Future Lease Payments for Leases (Details) - USD ($) $ in Thousands	Jan. 02, 2022	Jan. 03, 2021
2022, operating	$ 409
2022, finance	475
2023	421
2023, finance	141
2024, operating	106
2024, finance	106
2025, operating	0
2025, finance	0
Total lease payments, operating	936
Total lease payments, finance	722
Less: Interest, operating	63
Less: Interest, finance	32
Current and Lease Liabilities - Non-current [Member]
Present value of lease liabilities, operating	873	$ 1,212
Present value of lease liabilities, finance	$ 690	$ 670

Note 8 - Leases - Schedule of L

Note 8 - Leases - Schedule of Lease Terms and Weighted Average Discount Rate (Details)	Jan. 02, 2022
Operating leases (Year)	2 years 3 months
Finance leases (Year)	2 years 1 month 24 days
Operating leases	6.00%
Finance leases	4.57%

Note 9 - Fair Value Measureme_3

Note 9 - Fair Value Measurements (Details Textual) $ in Millions	Jan. 02, 2022USD ($)	Jan. 03, 2021USD ($)
Measurement Input, Discount for Lack of Marketability [Member] | Minimum [Member]
Equity Securities, FV-NI, Measurement Input	34
Measurement Input, Discount for Lack of Marketability [Member] | Maximum [Member]
Equity Securities, FV-NI, Measurement Input	41
Measurement Input, Expected Term [Member] | Minimum [Member]
Equity Securities, FV-NI, Measurement Input	4
Measurement Input, Expected Term [Member] | Maximum [Member]
Equity Securities, FV-NI, Measurement Input	5
Measurement Input, Risk Free Interest Rate [Member] | Minimum [Member]
Equity Securities, FV-NI, Measurement Input	0.75
Measurement Input, Risk Free Interest Rate [Member] | Maximum [Member]
Equity Securities, FV-NI, Measurement Input	0.92
Measurement Input, Expected Dividend Payment [Member]
Equity Securities, FV-NI, Measurement Input	0
Measurement Input, Price Volatility [Member] | Minimum [Member]
Equity Securities, FV-NI, Measurement Input	63
Measurement Input, Price Volatility [Member] | Maximum [Member]
Equity Securities, FV-NI, Measurement Input	78
Money Market Funds [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and Cash Equivalents, Fair Value Disclosure	$ 19.6	$ 22

Note 9 - Fair Value Measureme_4

Note 9 - Fair Value Measurements - Fair Value Valuation Method Significant Unobservable Inputs (Details) $ in Thousands	Jan. 02, 2022USD ($)
Investment in privately-held non-affiliate	$ 300,000
Total assets	300,000
Fair Value, Inputs, Level 1 [Member]
Investment in privately-held non-affiliate	0
Total assets	0
Fair Value, Inputs, Level 2 [Member]
Investment in privately-held non-affiliate	0
Total assets	0
Fair Value, Inputs, Level 3 [Member]
Investment in privately-held non-affiliate	300,000
Total assets	$ 0

Note 10 - Income Taxes (Details

Note 10 - Income Taxes (Details Textual) - USD ($) $ in Thousands	Jan. 02, 2022	Jan. 03, 2021	Jan. 01, 2018	Dec. 31, 2017
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 2,100	$ 0
Paycheck Protection Program [Member]
Debt Instrument, Face Amount		$ 1,200
Federal [Member]
Operating Loss Carryforwards, Total	183,900		$ 55,300	$ 128,600
Federal [Member] | Research Tax Credit Carryforward [Member]
Tax Credit Carryforward, Amount	3,700
State and Local Jurisdiction [Member]
Operating Loss Carryforwards, Total	94,400
Tax Credit Carryforward, Amount	4,700
State and Local Jurisdiction [Member] | Research Tax Credit Carryforward [Member]
Tax Credit Carryforward, Amount	$ 4,700

Note 10 - Income Taxes - Compon

Note 10 - Income Taxes - Components of Income Tax Expense Benefit (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Loss before income taxes	$ (6,497)	$ (11,100)	$ (15,524)
Federal	0	0	0
State	3	3	3
Foreign	22	39	108
Subtotal	25	42	111
Federal	0	0	(141)
State	0	0	(44)
Foreign	94	9	(6)
Subtotal	94	9	(191)
Provision for (benefit from) income taxes	119	51	(80)
Domestic Tax Authority [Member]
U.S.	(6,461)	(11,170)	(15,813)
Foreign Tax Authority [Member]
Foreign	$ (36)	$ 70	$ 289

Note 10 - Income Taxes - Effect

Note 10 - Income Taxes - Effective Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Income tax (benefit) at statutory rate	$ (1,364)	$ (2,331)	$ (3,260)
State taxes	3	3	(42)
Foreign taxes	124	34	41
Stock compensation and other permanent differences	(155)	171	245
PPP Loan Forgiveness	(250)	0	0
R&D Tax Credits	(230)	(261)	(286)
Expired tax attributes	3,304	208	1,085
Future benefit of deferred tax assets not recognized	1,312	(2,227)	(2,277)
Other	0	0	(140)
Provision for (benefit from) income taxes	$ 119	$ 51	$ (80)

Note 10 - Income Taxes - Deferr

Note 10 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Jan. 02, 2022	Jan. 03, 2021
Net operating losses	$ 45,197	$ 43,703
Accruals and reserves	1,347	1,239
Credits carryforward	5,660	5,860
Depreciation and amortization	7,820	9,240
Stock-based compensation	403	485
Operating lease liability	409	469
Gross deferred tax assets	60,836	60,996
Right-of-use asset	(400)	(458)
Withholding tax on future distribution	(125)	0
Gross deferred tax assets	(525)	(458)
Net deferred tax assets	60,311	60,538
Valuation allowance	(60,353)	(60,486)
Total deferred tax assets	$ (42)
Total deferred tax liability		$ 52

Note 10 - Income Taxes - Unreco

Note 10 - Income Taxes - Unrecognized Tax Benefits Roll Forward (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Beginning balance of unrecognized tax benefits	$ 2,176	$ 2,117	$ 2,161
Subtractions for tax positions related to the prior year	(7)		(46)
Additions for tax positions related to the prior year		38
Additions for tax positions related to the current year	128	114	88
Lapse of statutes of limitations	(178)	(93)	(86)
Ending balance of unrecognized tax benefits	$ 2,118	$ 2,176	$ 2,117

Note 11 - Stockholders' Equity

Note 11 - Stockholders' Equity (Details Textual) - USD ($)	Sep. 22, 2021	Jun. 22, 2020	Jun. 21, 2019	Jul. 21, 2020	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019	Mar. 15, 2019	May 29, 2018
Common Stock, Shares Authorized (in shares)					200,000,000	200,000,000
Preferred Stock, Shares Authorized (in shares)					10,000,000	10,000,000
Payments of Stock Issuance Costs					$ 45,000	$ 1,147,000	$ 1,181,000
Common Stock, Par or Stated Value Per Share (in dollars per share)					$ 0.001	$ 0.001
Proceeds from Issuance of Common Stock					$ 1,342,000	$ 9,296,000	$ 9,437,000
Warrants Issued in Connection with Underwritten Public Offering [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)					$ 19.32
Maximum [Member] | Warrants Issued in Connection with Underwritten Public Offering [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)					386,100
Common Stock [Member]
Stock Issued During Period, Shares, New Issues (in shares)					198,000	2,642,000	1,314,000
Common Stock [Member] | Maximum [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)									386,000
Private Placement [Member]
Payments of Stock Issuance Costs	$ 45,000
Proceeds from Issuance of Common Stock, Net	$ 1
Underwritten Public Offering [Member]
Payments of Stock Issuance Costs		$ 1,100,000
Common Stock, Par or Stated Value Per Share (in dollars per share)		$ 0.001
Proceeds from Issuance of Common Stock		$ 8,800,000	$ 8,000,000	$ 8,100,000
Shelf Registration Maximum Offering								$ 75,000,000
Underwritten Public Offering [Member] | Common Stock [Member]
Stock Issued During Period, Shares, New Issues (in shares)		2,500,000	1,300,000
Common Stock, Par or Stated Value Per Share (in dollars per share)		$ 0.001	$ 0.001
Shares Issued, Price Per Share (in dollars per share)		$ 3.50	$ 7
Exercise of Option for Overallotment of Shares by Underwriters [Member]
Payments of Stock Issuance Costs				52,000
Proceeds from Issuance of Common Stock				$ 496,000
Exercise of Option for Overallotment of Shares by Underwriters [Member] | Common Stock [Member]
Stock Issued During Period, Shares, New Issues (in shares)		375,000	171,429	141,733
Underwritten Public Offering, Including Exercise of Overallotment Options by Underwriters [Member]
Payments of Stock Issuance Costs				$ 1,200,000
Proceeds from Issuance of Common Stock, Net				8,100,000
Proceeds from Issuance of Common Stock				$ 9,300,000
Common Stock [Member] | Private Placement [Member]
Stock Issued During Period, Shares, New Issues (in shares)	125,000
Common Stock [Member] | Registered Direct Offering [Member]
Stock Issued During Period, Shares, New Issues (in shares)	73,664

Note 12 - Employee Stock Plans

Note 12 - Employee Stock Plans (Details Textual) - shares	Apr. 24, 2019	Apr. 26, 2017	Apr. 23, 2015	Jan. 02, 2022	Jan. 03, 2021	May 06, 2019	May 05, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)				10 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)				4 years
Stock Plan 2009 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)	10 years
Weighted Average Number of Shares, Common Stock Subject to Repurchase or Cancellation (in shares)	299,070
Stock Plan 2019 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)	357,143			593,481
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized (in shares)				600,000	550,000
Stock Plan 2019 [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage				25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)				1 year
The 2009 Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)				258,321		642,857	342,857
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized (in shares)		107,143	71,429
Share-based Compensation Arrangement by Share-based Payment Award, Offering Period (Month)				6 months
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate				20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee (in shares)				1,429
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Offering Date				85.00%

Note 13 - Stock-based Compens_3

Note 13 - Stock-based Compensation (Details Textual) - USD ($)	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019	Dec. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	4 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)	10 years
Share-based Payment Arrangement, Amount Capitalized	$ 0	$ 0	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 0
Share Price (in dollars per share)	$ 5.11
Share-based Payment Arrangement, Expense	$ 2,526,000	$ 1,739,000	$ 3,144,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)	0	0	0
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Ending Balance (in dollars per share)	$ 2.18	$ 1.09	$ 4.28
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	83,605	20,409	24,131
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)	$ 3.14	$ 2.47	$ 9.76
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)	258,343
Employee Stock Ownership Plan (ESOP), Compensation Expense	$ 110,000	$ 39,000	$ 60,000
Share-based Payment Arrangement, Option [Member]
Proceeds from Stock Options Exercised	0	0	3,600
Share-based Payment Arrangement, Expense	$ 0	39,000	60,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)	0
Restricted Stock Units (RSUs) [Member]
Share-based Payment Arrangement, Expense	$ 2,400,000	$ 1,700,000	$ 3,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Ending Balance (in dollars per share)	$ 5.86	$ 4.99	$ 12.55	$ 17.22
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	619,000	816,000	353,000
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)	$ 5.81	$ 3.97	$ 10.77

Note 13 - Stock-based Compens_4

Note 13 - Stock-based Compensation - Schedule of Allocation of Recognized Period Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Total costs and expenses	$ 2,526	$ 1,739	$ 3,144
Cost of Sales [Member]
Total costs and expenses	282	162	78
Research and Development Expense [Member]
Total costs and expenses	843	670	2,242
Selling, General and Administrative Expenses [Member]
Total costs and expenses	$ 1,401	$ 907	$ 824

Note 13 - Stock-based Compens_5

Note 13 - Stock-based Compensation - Schedule of Stock Based Compensation Award Activity (Details) - shares	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Balance (in shares)	121	186	229
Options granted (in shares)	0	0	0
Balance (in shares)	93	121	186
Stock Plan 2019 [Member]
Balance (in shares)	320,000	272,000
Options authorized (in shares)	600,000	550,000
Options granted (in shares)	0	0
Options forfeited or expired (in shares)	31,000	65,000
RSUs granted (in shares)	(619,000)	(816,000)
RSUs forfeited (in shares)	262,000	249,000
Balance (in shares)	594,000	320,000	272,000

Note 13 - Stock-Based Compens_6

Note 13 - Stock-Based Compensation - Stock Options Activity (Details) - USD ($)	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019	Dec. 30, 2018
Balance (in shares)	121	186	229
Weighted average price balance (in dollars per share)	$ 28.46	$ 32.09	$ 30.52
Weighted average remaining, balance (Year)	3 years 2 months 8 days	3 years 9 months	3 years 3 months 25 days	3 years 8 months 12 days
Options granted (in shares)	0	0	0
Weighted average price, granted (in dollars per share)	$ 0	$ 0	$ 0
Forfeited or expired (in shares)	(28)	(65)	(42)
Weighted average price, forfeited or expired (in dollars per share)	$ 31.68	$ 38.83	$ 24.14
Exercised, options (in shares)	0	0	(1)
Weighted average price, exercised (in dollars per share)	$ 0	$ 0	$ 10.92
Balance (in shares)	93	121	186	229
Weighted average price balance (in dollars per share)	$ 27.49	$ 28.46	$ 32.09	$ 30.52
Aggregate intrinsic value, balance	$ 0
Exercisable and Vested and expected to vest, options (in shares)	93
Weighted average price, exercisable and Vested and expected to vest (in dollars per share)	$ 27.49
Weighted average remaining, exercisable and Vested and expected to vest (Year)	3 years 2 months 8 days
Aggregate intrinsic value, exercisable and Vested and expected to vest	$ 0

Note 13 - Stock-Based Compens_7

Note 13 - Stock-Based Compensation - Compensation Shares Authorized Under Stock Option Plans By Exercise Price Range (Details)	12 Months Ended
	Jan. 02, 2022$ / sharesshares
Range 1 [Member]
Options outstanding (in shares)	48
Weighted average remaining contractual life (Year)	4 years 8 months 4 days
Weighted average exercise price (in dollars per share) | $ / shares	$ 12,050
Options exercisable (in shares)	48
Exercisable, weighted average exercise price (in dollars per share) | $ / shares	$ 12,050
Range 2 [Member]
Options outstanding (in shares)	3
Weighted average remaining contractual life (Year)	7 months 6 days
Weighted average exercise price (in dollars per share) | $ / shares	$ 30,380
Options exercisable (in shares)	3
Exercisable, weighted average exercise price (in dollars per share) | $ / shares	$ 30,380
Range 3 [Member]
Options outstanding (in shares)	5
Weighted average remaining contractual life (Year)	10 months 6 days
Weighted average exercise price (in dollars per share) | $ / shares	$ 31,500
Options exercisable (in shares)	5
Exercisable, weighted average exercise price (in dollars per share) | $ / shares	$ 31,500
Range 4 [Member]
Options outstanding (in shares)	3
Weighted average remaining contractual life (Year)	1 year 4 months 6 days
Weighted average exercise price (in dollars per share) | $ / shares	$ 32,200
Options exercisable (in shares)	3
Range 5 [Member]
Options outstanding (in shares)	0.4
Weighted average remaining contractual life (Year)	9 months 21 days
Weighted average exercise price (in dollars per share) | $ / shares	$ 40,180
Options exercisable (in shares)	0.4
Range 6 [Member]
Options outstanding (in shares)	6
Weighted average remaining contractual life (Year)	2 years 11 months 15 days
Weighted average exercise price (in dollars per share) | $ / shares	$ 44,800
Options exercisable (in shares)	6
Range 7 [Member]
Options outstanding (in shares)	3
Weighted average remaining contractual life (Year)	2 years 4 months 6 days
Weighted average exercise price (in dollars per share) | $ / shares	$ 46,620
Options exercisable (in shares)	3
Range 8 [Member]
Options outstanding (in shares)	13
Weighted average remaining contractual life (Year)	1 year 11 months 8 days
Weighted average exercise price (in dollars per share) | $ / shares	$ 47,460
Options exercisable (in shares)	13
Range 9 [Member]
Options outstanding (in shares)	8
Weighted average remaining contractual life (Year)	4 months 6 days
Weighted average exercise price (in dollars per share) | $ / shares	$ 48,720
Options exercisable (in shares)	8
Range 10 [Member]
Options outstanding (in shares)	4
Weighted average remaining contractual life (Year)	2 years 4 months 17 days
Weighted average exercise price (in dollars per share) | $ / shares	$ 53,480
Options exercisable (in shares)	4
Range 11 [Member]
Options outstanding (in shares)	93
Weighted average remaining contractual life (Year)	3 years 2 months 8 days
Weighted average exercise price (in dollars per share) | $ / shares	$ 27,490
Options exercisable (in shares)	93

Note 13 - Stock-Based Compens_8

Note 13 - Stock-Based Compensation - Summary of Restricted Stock Units Activity (Details) - Restricted Stock Units (RSUs) [Member] - $ / shares shares in Thousands	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Balance (in shares)	800	377	183
Balance (in dollars per share)	$ 4.99	$ 12.55	$ 17.22
Granted (in shares)	619	816	353
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)	$ 5.81	$ 3.97	$ 10.77
Vested (in shares)	(586)	(144)	(118)
Vested (in dollars per share)	$ 4.99	$ 10.41	$ 14.48
Forfeited (in shares)	(265)	(249)	(41)
Forfeited (in dollars per share)	$ 5	$ 7.93	$ 0
Balance (in shares)	568	800	377
Balance (in dollars per share)	$ 5.86	$ 4.99	$ 12.55

Note 13 - Stock-Based Compens_9

Note 13 - Stock-Based Compensation - Schedule of Weighted Average Assumptions (Details)	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Expected life (months) (Month)	6 months	6 months	6 months
Risk-free interest rate	0.05%	0.12%	2.37%
Volatility	74.00%	82.00%	54.00%

Note 14 - Information Concern_3

Note 14 - Information Concerning Product Lines, Geographic Information, Accounts Receivable and Revenue Concentration (Details Textual) - USD ($)		9 Months Ended	12 Months Ended
		Sep. 27, 2020	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Revenue from Contract with Customer, Excluding Assessed Tax, Total	[1]		$ 12,685,000	$ 8,634,000	$ 10,310,000
Contract with Customer, Liability, Current			$ 455,000	$ 52,000
CHINA
Revenue from Contract with Customer, Excluding Assessed Tax, Total					$ 1,100,000	$ 1,800,000	$ 1,300,000
CHINA | Revenue Benchmark [Member] | Geographic Concentration Risk [Member]
Concentration Risk, Percentage					11.00%	15.00%	11.00%
JAPAN
Revenue from Contract with Customer, Excluding Assessed Tax, Total					$ 1,800,000	$ 1,600,000	$ 1,500,000
JAPAN | Revenue Benchmark [Member] | Geographic Concentration Risk [Member]
Concentration Risk, Percentage					17.00%	12.00%	12.00%
UNITED STATES
Revenue from Contract with Customer, Excluding Assessed Tax, Total					$ 4,700,000	$ 6,400,000
UNITED STATES | Revenue Benchmark [Member] | Geographic Concentration Risk [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total							$ 4.2
Concentration Risk, Percentage					46.00%	50.00%	34.00%
UNITED KINGDOM | Revenue Benchmark [Member] | Geographic Concentration Risk [Member]
Concentration Risk, Percentage		10.00%
Non-US [Member] | Assets, Total [Member] | Geographic Concentration Risk [Member]
Concentration Risk, Percentage			3.00%	4.00%
New Products [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	[1]		$ 7,761,000	$ 2,782,000	$ 3,123,000
Professional Services [Member]
Contract with Customer, Liability, Current			300,000	0
Contract with Customer, Asset, after Allowance for Credit Loss, Current, Total			250,000
Contract with Customer, Asset, after Allowance for Credit Loss, Total				0
Contract with Customer, Liability, Total				0
Professional Services [Member] | eFPGA IP License [Member]
Contract with Customer, Liability, Current			1,100,000
New Products Related to Engineering Services [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total			1,500,000
Engineering Services [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total			$ 1,500,000	$ 300,000	$ 0
[1]	New products include all products manufactured on 180 nanometer or smaller semiconductor processes, eFPGA IP license, professional services, QuickAI and SensiML AI software as a service (SaaS) revenues. Mature products include all products produced on semiconductor processes larger than 180 nanometers. New product revenues of $7.8 million includes revenues from in eFPGA IP license of $1.1 million and professional engineering services of $1.5 million for fiscal 2021. For fiscal years 2020 and 2019 the Company recognized $0.3 million and $0, respectively, in revenues for professional engineering services. Related to the Company's professional services revenue, the Company had Contract assets of approximately $250 thousand included in accounts receivable on its Consolidated Balance Sheet at January 2, 2022 and none at January 3, 2021. Additionally, at January 2, 2022, the Company had contract liabilities, related to its professional services, of $300 thousand included in deferred revenue on its Consolidated Balance Sheet and none at January 3, 2021.

Note 14 - Information Concern_4

Note 14 - Information Concerning Product Lines, Geographic Information and Revenue Concentration - Schedule of Revenue by Product Line (Details) - USD ($) $ in Thousands		12 Months Ended
		Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Revenue	[1]	$ 12,685	$ 8,634	$ 10,310
New Products [Member]
Revenue	[1]	7,761	2,782	3,123
Mature Products [Member]
Revenue	[1]	$ 4,924	$ 5,852	$ 7,187
[1]	New products include all products manufactured on 180 nanometer or smaller semiconductor processes, eFPGA IP license, professional services, QuickAI and SensiML AI software as a service (SaaS) revenues. Mature products include all products produced on semiconductor processes larger than 180 nanometers. New product revenues of $7.8 million includes revenues from in eFPGA IP license of $1.1 million and professional engineering services of $1.5 million for fiscal 2021. For fiscal years 2020 and 2019 the Company recognized $0.3 million and $0, respectively, in revenues for professional engineering services. Related to the Company's professional services revenue, the Company had Contract assets of approximately $250 thousand included in accounts receivable on its Consolidated Balance Sheet at January 2, 2022 and none at January 3, 2021. Additionally, at January 2, 2022, the Company had contract liabilities, related to its professional services, of $300 thousand included in deferred revenue on its Consolidated Balance Sheet and none at January 3, 2021.

Note 14 - Information Concern_5

Note 14 - Information Concerning Product Lines, Geographic Information and Revenue Concentration - Schedule of Revenue by Shipment Destination (Details) - USD ($) $ in Thousands		12 Months Ended
		Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Total revenue	[1]	$ 12,685	$ 8,634	$ 10,310
Asia Pacific [Member]
Total revenue	[2]	3,352	2,100	3,049
Europe [Member]
Total revenue		2,448	1,501	2,459
North America [Member]
Total revenue	[3]	$ 6,885	$ 5,033	$ 4,802
[1]	New products include all products manufactured on 180 nanometer or smaller semiconductor processes, eFPGA IP license, professional services, QuickAI and SensiML AI software as a service (SaaS) revenues. Mature products include all products produced on semiconductor processes larger than 180 nanometers. New product revenues of $7.8 million includes revenues from in eFPGA IP license of $1.1 million and professional engineering services of $1.5 million for fiscal 2021. For fiscal years 2020 and 2019 the Company recognized $0.3 million and $0, respectively, in revenues for professional engineering services. Related to the Company's professional services revenue, the Company had Contract assets of approximately $250 thousand included in accounts receivable on its Consolidated Balance Sheet at January 2, 2022 and none at January 3, 2021. Additionally, at January 2, 2022, the Company had contract liabilities, related to its professional services, of $300 thousand included in deferred revenue on its Consolidated Balance Sheet and none at January 3, 2021.
[2]	Asia Pacific includes revenue from China $1.1 million or 11% and Japan of $1.8 million or 17% of total revenue in 2019 and $1.8 million or 15% and $1.6 million or 12% of total revenue in 2018, respectively. In 2017, revenue from China and Japan were $1.3 million or 11% and $1.5 million or 12%, respectively.
[3]	North America includes revenue from the United States of $4.7 million or 46% of total revenue in 2019, $6.4 million or 50% of total revenue in 2018 and $4.2 million or 34% of total revenue in 2017.

Note 14 - Information Concern_6

Note 14 - Information Concerning Product Lines, Geographic Information and Revenue Concentration - Customer and Distributor Concentration (Details) - Customer Concentration Risk [Member]	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Revenue Benchmark [Member] | Distributor "A" [Member]
Concentration risk percentage	15.00%	24.00%	40.00%
Revenue Benchmark [Member] | Distributor "C" [Member]
Concentration risk percentage	11.00%	15.00%	13.00%
Revenue Benchmark [Member] | Distributor "E" [Member]
Concentration risk percentage	22.00%	19.00%
Revenue Benchmark [Member] | Customer "B" [Member]
Concentration risk percentage	8.00%	10.00%	13.00%
Revenue Benchmark [Member] | Customer "O" [Member]
Concentration risk percentage	14.00%	16.00%
Revenue Benchmark [Member] | Customer "E" [Member]
Concentration risk percentage	10.00%		10.00%
Revenue Benchmark [Member] | Customer "N" [Member]
Concentration risk percentage	16.00%
Accounts Receivable [Member] | Distributor "A" [Member]
Concentration risk percentage	42.00%
Accounts Receivable [Member] | Distributor "C" [Member]
Concentration risk percentage	17.00%
Accounts Receivable [Member] | Distributor "E" [Member]
Concentration risk percentage	22.00%
Accounts Receivable [Member] | Customer "O" [Member]
Concentration risk percentage	10.00%
Accounts Receivable [Member] | Customer P [Member]
Concentration risk percentage		67.00%
Accounts Receivable [Member] | Customer Q [Member]
Concentration risk percentage		10.00%

Note 15 - Commitments and Con_2

Note 15 - Commitments and Contingencies (Details Textual) - USD ($)	Jan. 02, 2022	Jan. 03, 2021
Wafer Purchase Commitment [Member]
Purchase Commitment, Remaining Minimum Amount Committed	$ 972,000
Goods and Services [Member]
Purchase Commitment, Remaining Minimum Amount Committed		$ 60,000
Purchase Obligation, Total	$ 939,000

Note 16 - Subsequent Events (De

Note 16 - Subsequent Events (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	Feb. 09, 2022	Feb. 28, 2022	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Common Stock, Par or Stated Value Per Share (in dollars per share)			$ 0.001	$ 0.001
Proceeds from Issuance of Common Stock			$ 1,342	$ 9,296	$ 9,437
Common Stock [Member]
Stock Issued During Period, Shares, New Issues (in shares)			198,000	2,642,000	1,314,000
Subsequent Event [Member] | Registered Direct Offering [Member]
Stock Issued During Period, Shares, New Issues (in shares)		310,000
Proceeds from Issuance of Common Stock		$ 1,500
Subsequent Event [Member] | Registered Direct Offering [Member] | Common Stock [Member]
Stock Issued During Period, Shares, New Issues (in shares)	310,000
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.001
Proceeds from Issuance of Common Stock	$ 1,500
Shares Issued, Price Per Share (in dollars per share)	$ 4.78

Schedule II - Valuation and Q_3

Schedule II - Valuation and Qualifying Accounts - Summary of Valuation Allowance (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Balance	$ 60,538	$ 58,140	$ 54,913
Additions at cost	(227)	2,398	3,227
Deductions	0	0	0
Balance	$ 60,311	$ 60,538	$ 58,140