QuickLogic (QUIK) 10-Q 17 Nov 21 2021 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Oct. 03, 2021	Nov. 11, 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	Q3
Document Fiscal Year Focus	2021
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Oct. 3, 2021
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	95131-1816
City Area Code	408
Local Phone Number	990-4000
Title of 12(b) Security	Common Stock, par value $.001 per share
Trading Symbol	QUIK
Security Exchange Name	NASDAQ
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
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		11,795,647

Unaudited Condensed Consolidate

Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Oct. 03, 2021	Jan. 03, 2021
Current assets:
Cash, cash equivalents and restricted cash	$ 19,581	$ 22,748
Accounts receivable, net of allowances for doubtful accounts of $62 and $0, respectively	2,012	1,688
Inventories	2,182	2,688
Other current assets	1,157	1,066
Total current assets	24,932	28,190
Property and equipment, net	542	548
Capitalized internal-use software, net	1,191	986
Right of use assets	1,722	1,839
Intangible assets	779	860
Goodwill	185	185
Other assets	279	280
TOTAL ASSETS	29,630	32,888
Current liabilities:
Revolving line of credit	15,000	15,000
Trade payables	1,376	935
Accrued liabilities	1,591	1,340
Deferred revenue	94	52
Lease liabilities, current	803	685
Total current liabilities	18,864	18,012
Long-term liabilities:
Notes payable, non-current	0	1,192
Lease liabilities, non-current	993	1,197
Other liabilities, non-current	167	0
Total liabilities	20,024	20,401
Commitments and contingencies (see Note 11)
Stockholders' equity:
Preferred stock, $0.001 par value; 10,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.001 par value; 200,000 authorized; 11,790 and 11,094 shares issued and outstanding as of October 3, 2021 and January 3, 2021, respectively	12	11
Additional paid-in capital	309,036	306,885
Accumulated deficit	(299,442)	(294,409)
Total stockholders' equity	9,606	12,487
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 29,630	$ 32,888

Unaudited Condensed Consolida_2

Unaudited Condensed Consolidated Balance Sheets (Parentheticals) - USD ($) shares in Thousands, $ in Thousands	Oct. 03, 2021	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)	11,790	11,094
Common stock, shares outstanding (in shares)	11,790	11,094

Unaudited Condensed Consolida_3

Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020
Revenue	$ 3,858,000	$ 1,780,000	$ 8,980,000	$ 6,134,000
Cost of revenue	1,126,000	857,000	3,638,000	3,092,000
Gross profit	2,732,000	923,000	5,342,000	3,042,000
Operating expenses:
Research and development	1,807,000	1,380,000	5,346,000	5,399,000
Selling, general and administrative	2,186,000	1,478,000	5,927,000	5,022,000
Restructuring costs	0	111,000	0	624,000
Total operating expenses	3,993,000	2,969,000	11,273,000	11,045,000
Loss from operations	(1,261,000)	(2,046,000)	(5,931,000)	(8,003,000)
Interest expense	(35,000)	(36,000)	(99,000)	(299,000)
Gain on forgiveness of debt	0	0	1,192,000	0
Interest income and other income (expense), net	(7,000)	27,000	(59,000)	94,000
Loss before income taxes	(1,303,000)	(2,055,000)	(4,897,000)	(8,208,000)
Provision for (benefit from) income taxes	(21,000)	10,000	136,000	1,000
Net loss	$ (1,282,000)	$ (2,065,000)	$ (5,033,000)	$ (8,209,000)
Net loss per share:
Basic and diluted (in dollars per share)	$ (0.11)	$ (0.19)	$ (0.44)	$ (0.88)
Weighted average shares outstanding:
Basic and diluted (in shares)	11,573	11,023	11,441	9,315

Unaudited Condensed Consolida_4

Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020
Cash flows from operating activities:
Net loss	$ (5,033)	$ (8,209)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	471	644
Stock-based compensation	1,455	601
Write-down of inventories	225	55
Write-off of equipment	(5)	41
Gain on forgiveness of debt	(1,192)	0
Allowance for bad debt	62	0
Changes in operating assets and liabilities:
Accounts receivable	(386)	876
Inventories	281	67
Other assets	(90)	433
Trade payables	699	225
Accrued liabilities and deferred revenue	293	122
Other long-term liabilities	167	0
Net cash used in operating activities	(3,053)	(5,145)
Cash flows from investing activities:
Capital expenditures for property and equipment	(178)	(155)
Capitalized internal-use software	(402)	(607)
Net cash used in investing activities	(580)	(762)
Cash flows from financing activities:
Payment of finance lease obligations	(231)	(179)
Proceeds from paycheck protection program loan	0	1,191
Proceeds from line of credit	45,000	42,000
Repayment of line of credit	(45,000)	(42,000)
Proceeds from issuance of common stock	148	0
Proceeds from equity funding, net of issuance costs	1,034	8,099
Taxes paid related to settlement of equity awards	(485)	(67)
Net cash provided by financing activities	466	9,044
Net (decrease) increase in cash, cash equivalents and restricted cash	(3,167)	3,137
Cash, cash equivalents and restricted cash at beginning of period	22,748	21,548
Cash, cash equivalents and restricted cash at end of period	$ 19,581	$ 24,685

Condensed Consolidated Statemen

Condensed Consolidated Statements of Changes In Stockholders' Equity (Unaudited) - 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. 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 plan (in shares)	52
Common stock issued under stock plans and employee stock purchase plan	$ 0	(25)	0	(25)
Net loss	0	0	(3,165)	(3,165)
Stock-based compensation	$ 0	(398)	0	(398)
Balance (in shares) at Mar. 29, 2020	8,383
Balance at Mar. 29, 2020	$ 8	296,650	(286,423)	10,235
Balance (in shares) at Dec. 29, 2019	8,331
Balance at Dec. 29, 2019	$ 8	297,073	(283,258)	13,823
Net loss				(8,209)
Balance (in shares) at Sep. 27, 2020	11,068
Balance at Sep. 27, 2020	$ 11	305,703	(291,467)	14,247
Balance (in shares) at Mar. 29, 2020	8,383
Balance at Mar. 29, 2020	$ 8	296,650	(286,423)	10,235
Common stock issued under stock plans and employee stock purchase plan (in shares)	29
Common stock issued under stock plans and employee stock purchase plan	$ 0	(31)	0	(31)
Stock-based compensation	0	741	0	741
Net loss	$ 0	0	(2,979)	(2,979)
Common stock offering, net of issuance costs (in shares)	2,500
Common stock offering, net of issuance costs	$ 3	7,653	0	7,656
Stock issuance cost				1,100
Balance (in shares) at Jun. 28, 2020	10,912
Balance at Jun. 28, 2020	$ 11	305,013	(289,402)	15,622
Common stock issued under stock plans and employee stock purchase plan (in shares)	14
Common stock issued under stock plans and employee stock purchase plan	$ 0	(13)	0	(13)
Stock-based compensation	0	258	0	258
Net loss	$ 0	0	(2,065)	(2,065)
Common stock offering, net of issuance costs (in shares)	142
Stock issuance cost	$ 0	445	0	445
Balance (in shares) at Sep. 27, 2020	11,068
Balance at Sep. 27, 2020	$ 11	305,703	(291,467)	14,247
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 plan (in shares)	354
Common stock issued under stock plans and employee stock purchase plan	$ 0	(484)	0	(484)
Stock-based compensation	0	368	0	368
Net loss	$ 0	0	(1,689)	(1,689)
Balance (in shares) at Apr. 04, 2021	11,448
Balance at Apr. 04, 2021	$ 11	306,769	(296,098)	10,682
Balance (in shares) at Jan. 03, 2021	11,094
Balance at Jan. 03, 2021	$ 11	306,885	(294,409)	12,487
Net loss				(5,033)
Balance (in shares) at Oct. 03, 2021	11,790
Balance at Oct. 03, 2021	$ 12	309,036	(299,442)	9,606
Balance (in shares) at Apr. 04, 2021	11,448
Balance at Apr. 04, 2021	$ 11	306,769	(296,098)	10,682
Common stock issued under stock plans and employee stock purchase plan (in shares)	64
Common stock issued under stock plans and employee stock purchase plan	$ 1	146	0	147
Stock-based compensation	0	202	0	202
Net loss	$ 0	0	(2,062)	(2,062)
Balance (in shares) at Jul. 04, 2021	11,512
Balance at Jul. 04, 2021	$ 12	307,117	(298,160)	8,969
Common stock issued under stock plans and employee stock purchase plan (in shares)	79
Common stock issued under stock plans and employee stock purchase plan	$ 0		0	0
Stock-based compensation	0	885	0	885
Net loss	$ 0	0	(1,282)	(1,282)
Common stock offering, net of issuance costs (in shares)	199
Common stock offering, net of issuance costs	$ 0	1,034	0	1,034
Stock issuance cost				45
Balance (in shares) at Oct. 03, 2021	11,790
Balance at Oct. 03, 2021	$ 12	$ 309,036	$ (299,442)	$ 9,606

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Changes In Stockholders' Equity (Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Jun. 28, 2020
Stock issuance cost	$ 45	$ 445	$ 1,100

Note 1 - The Company and Basis

Note 1 - The Company and Basis of Presentation	9 Months Ended
	Oct. 03, 2021
Notes to Financial Statements
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]	Note 1 QuickLogic Corporation (“QuickLogic” or “Company”) was founded in 1988 1999. The accompanying interim condensed consolidated financial statements are unaudited. In the opinion of the Company’s management, these statements have been prepared in accordance with the United States generally accepted accounting principles (“U.S. GAAP”), and include all adjustments, consisting only of normal recurring adjustments, necessary to provide a fair statement of results for the interim periods presented. The Company recommends that these interim Unaudited Condensed Consolidated Financial Statements be read in conjunction with the Company's Form 10 January 3, 2021 March 23, 2021. three nine October 3, 2021 not may QuickLogic's fiscal year ends on the Sunday closest to December 31 third 2021 2020 October 3, 2021 September 27, 2020 COVID- 19 On January 30, 2020, 19 February 28, 2020, 19 19 19 As such, while COVID- 19 three nine October 3, 2021 19 2021 may 19. 19 19 may may 19 Restructuring In January 2020, January 24, 2020. nine September 27, 2020, nine October 3,2021. Liquidity The Company has financed its operations and capital investments through sales of common stock, finance and operating leases, a revolving line of credit and cash flows from operations. As of October 3, 2021 January 2021, September 2021. On December 11, 2020, December 21, 2018 ( one September 28 2022, one one On August 16, 2021, The Company was in compliance with all loan covenants as of October 3, 2021 October 3, 2021 On May 6, 2020, March 27, 2020, January 26, 2021, 5 On June 22, 2020, 30 July 21, 2020 On September 22, 2021, September 30, 2021, 3 No. 333 230352 $ milli 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 available financial resources from the Revolving Facility with Heritage Bank, will be sufficient to fund its operations and capital expenditures and provide adequate working capital for the next twelve Various factors can 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, the market acceptance of existing and new products including solutions based on its ArcticLink ® ® S3 Over the longer term, the Company anticipates that sales generated from its new product offerings and existing cash and cash equivalents, with financial resources from its Revolving Facility with the Heritage Bank and its ability to raise additional capital in the public capital markets, will be sufficient to satisfy its operations and capital expenditures. However, the Company cannot provide any assurance that it will be able to raise additional capital, if required, or that such capital will be available on terms acceptable to the Company. The inability of the Company to generate sufficient sales from its new product offerings and/or raise additional capital if needed could have a material adverse effect on the Company’s operations and financial condition, including its ability to maintain compliance with its lender’s financial covenants. On November 16, 2021, we entered into a Fourth Amendment to extend the Amended and Restated Loan Agreement with Heritage Bank to extend the maturity date to December 31, 2023. See Note 12. Principles of Consolidation The Unaudited Condensed Consolidated Financial Statements include the accounts of QuickLogic and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated. Foreign Currency The functional currency of the Company's non-U.S. operations is the U.S. dollar. 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 income (expense), net in the unaudited condensed consolidated statements of operations. Uses of Estimates The preparation of these Unaudited Condensed 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 materially 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. Contracts 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 Judgment is required to determine the Stand-alone Selling Price (“SSP”) for each distinct performance obligation. The Company uses a range of amounts to estimate SSP when each of the products and services are sold separately and determines the discount to be allocated based on the relative SSP of the various products and services when products and services sold are bundled. In instances where SSP is not not may one may Concentration of Risk The Company's accounts receivable 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 10

Note 2 - Significant Accounting

Note 2 - Significant Accounting Policies	9 Months Ended
	Oct. 03, 2021
Notes to Financial Statements
Significant Accounting Policies [Text Block]	Note 2 During the nine October 3, 2021 no 10 January 3, 2021 nine October 3, 2021 10 January 3, 2021 March 23, 2021. nine 2021 Included in the results for the third 2021, August 2021. December 2021. Fair Value Measurements The Company’s cash, cash equivalents and restricted cash include money market account balance of $19.6 million and $22.7 million as of October 3, 2021 January 3, 2021 Restricted Cash Cash, cash equivalent and restricted cash includes an amount of $100,000 p October 3, 2021 January 3, 2021 New Accounting Pronouncements Recently adopted accounting pronouncements In December 2019, No. 2019 12, Simplifying the Accounting for Income Taxes 740, 1 2 3 January 4, 2021, New accounting pronouncements not In August 2020, No. 2020 06, Debt Debt with Conversion and Other Options (Subtopic 470 20 Contracts in Entity s Own Equity (Subtopic 815 40 December 15, 2021,

Note 3 - Net Loss Per Share

Note 3 - Net Loss Per Share	9 Months Ended
	Oct. 03, 2021
Notes to Financial Statements
Earnings Per Share [Text Block]	Note 3 Basic 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 the three nine October 3, 2021 September 27, 2020 2009 not May 29, 2018, not three nine October 3, 2021 September 27, 2020

Note 4 - Balance Sheet Componen

Note 4 - Balance Sheet Components	9 Months Ended
	Oct. 03, 2021
Notes to Financial Statements
Supplemental Balance Sheet Disclosures [Text Block]	Note 4 The following table provides details relating to certain balance sheet line items as of October 3, 2021 January 3, 2021 October 3, January 3, 2021 2021 Inventories: Raw materials $ — $ 191 Work-in-process 1,428 1,842 Finished goods 754 655 $ 2,182 $ 2,688 Other current assets: Prepaid taxes, royalties and other prepaid expenses $ 871 $ 884 Other 286 182 $ 1,157 $ 1,066 Property and equipment, net: Equipment $ 10,336 $ 10,471 Software 1,880 1,783 Furniture and fixtures 31 33 Leasehold improvements 466 466 12,713 12,753 Less: Accumulated depreciation and amortization (12,171 ) (12,205 ) $ 542 $ 548 Capitalized internal-use software, net: Capitalized internal-use software $ 1,568 $ 1,166 Less: Accumulated amortization (377 ) (180 ) $ 1,191 $ 986 Accrued liabilities: Employee related accruals $ 955 $ 762 Other 636 578 $ 1,591 $ 1,340

Note 5 - Debt Obligations

Note 5 - Debt Obligations	9 Months Ended
	Oct. 03, 2021
Notes to Financial Statements
Debt Disclosure [Text Block]	Note 5 Revolving Line of Credit As of October 3, 2021 January 3, 2021 first three October 3, 2021 September 27, 2020, nine October 3, 2021 September 27, 2020, Payroll Protection Program Loan On May 6, 2020, May 6, 2020 two first six six fourth 2020 January 26, 2021, nine October 3, 2021

Note 6 - Leases

Note 6 - Leases	9 Months Ended
	Oct. 03, 2021
Notes to Financial Statements
Lessee, Operating and Finance Leases [Text Block]	Note 6 The Company entered into operating leases for office space for its headquarters, for its domestic and foreign subsidiaries and for its sales offices. Finance leases are primarily for engineering design software. Operating leases generally have lease terms of one five two three October 3, 2021 July 2020 July 10, 2020, eleven July 2020, July 2021. three October 3, 2021 September 27, 2020 nine October 3, 2021 September 27, 2020 The following table provides the expenses related to operating and finance leases (in thousands): Three Months Ended Nine Months Ended October 3, 2021 September 27, 2020 October 3, 2021 September 27, 2020 Operating lease costs: Fixed $ 101 $ 146 $ 306 $ 440 Short term 4 4 13 15 Total $ 105 $ 150 $ 319 $ 455 Finance lease costs: Amortization of ROU asset $ 87 $ 91 $ 591 $ 224 Interest 6 9 57 29 Total $ 93 $ 100 $ 648 $ 253 The following table provides the details of supplemental cash flow information. The right-of-use assets obtained in exchange for new finance and operating lease liabilities represent the new operating and finance leases entered into during the nine October 3, 2021 September 27, 2020 Nine Months Ended October 3, September 27, 2021 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used for operating leases $ 100 $ 427 Operating cash flows used for finance leases 9 29 Financing cash flows used for financing leases 231 179 Total $ 340 $ 635 Right-of-use assets obtained in exchange for finance lease obligations $ 397 $ 773 The following table provides the details of right-of-use assets and lease liabilities as of October 3, 2021 January 3, 2021 October 3, January 3, 2021 2021 Right-of-use assets: Operating leases $ 893 $ 1,134 Finance leases 829 705 Total right-of-use assets $ 1,722 $ 1,839 Lease liabilities: Operating leases $ 960 $ 1,212 Finance leases 836 670 Total lease liabilities $ 1,796 $ 1,882 The following table provided the details of future lease payments for operating and finance leases as of October 3, 2021 Operating Leases Finance Leases 2021 (Remaining period) $ 100 $ 159 2022 409 475 2023 421 141 2024 107 106 Total lease payments 1,037 881 Less: Interest (77 ) (45 ) Present value of lease liabilities $ 960 $ 836 The following table provides the details of lease terms and discount rates as of October 3, 2021 January 3, 2021 October 3, January 3, 2021 2021 Right-of-use assets: Weighted-average remaining lease term (years) Operating leases 2.50 3.24 Finance leases 2.19 2.21 Weighted-average discount rates: Operating leases 6.00 % 6.00 % Finance leases 5.50 % 5.50 %

Note 7 - Employee Stock Plans

Note 7 - Employee Stock Plans	9 Months Ended
	Oct. 03, 2021
Notes to Financial Statements
Disclosure of Employee Stock Ownership Plans [Text Block]	Note 7 2019 On April 24, 2019, 2019 “2019 2009 2019 2009 The 2019 March 5,2020 April 22, 2020 2019 2019 March 3, 2021 May 12, 2021 2019 October 3, 2021 2019 2009 The 2009 “2009 March 2009 January 2015 February 2017, April 23, 2015 April 26, 2017, 2009 The 2009 March 5, 2020 April 22, 2020. March 5, 2029 2009 October 3, 2021 2009

Note 8 - Stock-based Compensati

Note 8 - Stock-based Compensation	9 Months Ended
	Oct. 03, 2021
Notes to Financial Statements
Share-based Payment Arrangement [Text Block]	Note 8 Stock-based compensation expense included in the Company's consolidated financial statements for the three nine October 3, 2021 September 27, 2020 Three Months Ended Nine Months Ended October 3, September 27, October 3, September 27, 2021 2020 2021 2020 Cost of revenue $ 78 $ 37 $ 132 $ 80 Research and development 282 51 521 73 Selling, general and administrative 525 170 802 448 Total $ 885 $ 258 $ 1,455 $ 601 During the nine September 27, 2020 second 2020, No stock-based compensation was capitalized during any period presented above. No three nine October 3, 2021 September 27, 2020 Stock-Based Compensation Award Activity The following table summarizes the activity in the shares available for grant under the 2019 nine October 3, 2021 Shares Available for Grants Balance at January 3, 2021 320 Authorized shares 600 RSUs granted (377 ) PRSU's granted (175 ) Options cancelled 13 RSUs forfeited or expired 23 PRSUs forfeited or expired 239 Balance at October 3, 2021 643 Stock Options The following table summarizes stock options outstanding and stock option activity under the 2009 2019 nine October 3, 2021 Weighted Weighted Average Average Aggregate Number of Exercise Remaining Intrinsic Shares Price Term Value (in thousands) (in years) (in thousands) Balance outstanding at January 3, 2021 121 $ 28.46 3.75 — Forfeited or expired (13 ) $ 23.84 Balance outstanding at October 3, 2021 108 $ 29.04 2.99 $ — Exercisable at October 3, 2021 108 $ 29.04 2.99 $ — Vested and expected to vest at October 3, 2021 108 $ 29.04 2.99 $ — No stock options were granted during the three nine October 3, 2021 September 27, 2020 Total stock-based compensation related to stock options was approximately $0 and $11,000 for the three October 3, 2021 September 27, 2020 nine October 3, 2021 September 27, 2020 October 3, 2021 Restricted Stock Units The Company grants restricted stock units (“RSUs”) and performance restricted stock units ("PRSUs") to employees and directors with various vesting terms. RSUs entitle the holder to receive, at no one three October 3, 2021 September 27, 2020 nine October 3, 2021 September 27, 2020 January 2020, six June 28, 2020. As of October 3, 2021 September 27, 2020 October 3, 2021 A summary of activity for the Company's RSUs and PRSUs for the nine October 3, 2021 RSUs & PRSUs Outstanding Weighted Average Number of Grant Date Shares Fair Value (in thousands) Nonvested at January 3, 2021 800 $ 4.99 Granted 552 5.82 Vested (537 ) 5.00 Forfeited (262 ) 4.99 Nonvested at October 3, 2021 553 $ 5.81 Employee Stock Purchase Plan Total stock-based compensation related to the Company's ESPP was approximately $31,000 and $16,000 for the three October 3, 2021 September 27, 2020 nine October 3, 2021 September 27, 2020

Note 9 - Income Taxes

Note 9 - Income Taxes	9 Months Ended
	Oct. 03, 2021
Notes to Financial Statements
Income Tax Disclosure [Text Block]	Note 9 The Company recorded a net income tax (benefit) expense of ($21,000) and $10,000 for the three October 3, 2021 September 27, 2020 nine October 3, 2021 September 27, 2020 first 2021 one The Company believes it is more likely than not not not not not October 3, 2021 The Company had no unrecognized tax benefits as of October 3, 2021 January 3, 2021 not 12 Accrued interest and penalties related to unrecognized tax benefits are recognized as part of the income tax provision in the condensed consolidated statements of operations. 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 1999 Under the Tax Reform Act of 1986, may may not 382 may The Company has not may On March 27, 2020, $1.2M Q2 2020 December 27, 2020, 2021 not January 26, 2021. Q1 2021 not California has issued specific guidance regarding its conformity to the CARES Act. No 80 80" April 29, 2021, not On June 29, 2020, 85 85" January 1, 2020 December 31, 2022. $1 not 85 On December 18, 2019, 2019 12 January 4, 2021. 2019 12 not We considered the majority of our non-U.S. subsidiaries’ undistributed earnings to be permanently reinvested. Therefore no July 4, 2021. may one 2021. one no

Note 10 - Information Concernin

Note 10 - Information Concerning Product Lines, Geographic Information and Revenue Concentration	9 Months Ended
	Oct. 03, 2021
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	Note 10 The Company identifies its business segment 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 line (in thousands): Three Months Ended Nine Months Ended October 3, September 27, October 3, September 27, 2021 2020 2021 2020 New products $ 2,758 $ 639 $ 5,095 $ 1,945 Mature products 1,100 1,141 3,885 4,189 Total revenue $ 3,858 $ 1,780 $ 8,980 $ 6,134 Note: New products include products and related revenues for all products manufactured on 180 180 The following is a breakdown of revenue by type (in thousands): Three Months Ended Nine Months Ended October 3, September 27, October 3, September 27, 2021 2020 2021 2020 Device sales $ 2,858 $ 1,766 $ 7,830 $ 6,002 IP license and other services 1,000 14 1,150 132 Total revenue $ 3,858 $ 1,780 $ 8,980 $ 6,134 Note: Device revenue includes new product revenues and mature product revenues, except for IP License and other services. The following is a breakdown of revenue by shipment destination (in thousands): Three Months Ended Nine Months Ended October 3, September 27, October 3, September 27, 2021 2020 2021 2020 Asia Pacific (1) (4) $ 763 $ 320 $ 2,440 $ 1,505 North America (2) 2,605 1,087 4,429 3,321 Europe (3) 490 373 2,111 1,308 Total revenue $ 3,858 $ 1,780 $ 8,980 $ 6,134 ( 1 Asia Pacific includes revenue from Japan of $739  ,000, three October 3, 2021 September 27, 2020 nine October 3, 2021 September 27, 2020 was $2.4 million, or 26% of total ( 2 North America includes revenue from the United States of $2.6 three October 3, 2021 September 27, 2020 nine October 3, 2021 September 27, 2020 $4.4 ( 3 Europe includes revenue from United Kingdom of $273,000, or 7% of total revenue and $211,000 or 12% of total revenue for the three October 3, 2021 September 27, 2020 nine October 3, 2021 September 27, 2020 ( 4 Certain prior period amounts have been reclassified to conform to current period presentation. The following distributors and customers accounted for 10% Three Months Ended Nine Months Ended October 3, September 27, October 3, September 27, 2021 2020 2021 2020 Distributor "A" 12 % 22 % 13 % 29 % Distributor "C" * 20 % 12 % 18 % Distributor "E" 17 % 13 % 24 % 19 % Customer "B" * 10 % * 12 % Customer "E" * * 14 % * Customer "F" 17 % 13 % 24 % 19 % Customer "K" * 12 % * * Customer "N" 25 % 16 % 15 % * Customer "O" 25 % * 11 % * * Represents less than 10% The following distributors and customers accounted for 10% October 3, January 3, 2021 2021 Distributor "A" 12 % * Distributor "E" 18 % * Distributor "J" 41 % * Customer "O" 21 % * Customer "P" * 67 % Customer "Q" * 10 % * Represents less than 10%

Note 11 - Commitments and Conti

Note 11 - Commitments and Contingencies	9 Months Ended
	Oct. 03, 2021
Notes to Financial Statements
Commitments Disclosure [Text Block]	Note 11 Commitments The Company's manufacturing suppliers require the forecast of wafer starts several months in advance. The Company is required to take delivery of and pay for a portion of this forecasted wafer volume. As of October 3, 2021 January 3, 2021 The Company has purchase obligations with certain suppliers for the purchase of other goods and services entered into in the ordinary course of business. As of October 3, 2021 twelve Litigation From time to time, the Company may not third not may October 3, 2021 not India Transfer Pricing Notice On January 27, 2021, 2017 18, may not April 30, 2021, October 7, 2021, third 2021. December 31, 2021 may

Note 12 - Subsequent Events

Note 12 - Subsequent Events	9 Months Ended
	Oct. 03, 2021
Notes to Financial Statements
Subsequent Events [Text Block]	Note 12 On November 16, 2021, December 21, 2018 ( December 31, 2023.

Significant Accounting Policies

Significant Accounting Policies (Policies)	9 Months Ended
	Oct. 03, 2021
Accounting Policies [Abstract]
Fair Value Measurement, Policy [Policy Text Block]	Fair Value Measurements The Company’s cash, cash equivalents and restricted cash include money market account balance of $19.6 million and $22.7 million as of October 3, 2021 January 3, 2021
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]	Restricted Cash Cash, cash equivalent and restricted cash includes an amount of $100,000 p October 3, 2021 January 3, 2021
New Accounting Pronouncements, Policy [Policy Text Block]	New Accounting Pronouncements Recently adopted accounting pronouncements In December 2019, No. 2019 12, Simplifying the Accounting for Income Taxes 740, 1 2 3 January 4, 2021, New accounting pronouncements not In August 2020, No. 2020 06, Debt Debt with Conversion and Other Options (Subtopic 470 20 Contracts in Entity s Own Equity (Subtopic 815 40 December 15, 2021,

Note 4 - Balance Sheet Compon_2

Note 4 - Balance Sheet Components (Tables)	9 Months Ended
	Oct. 03, 2021
Notes Tables
Condensed Balance Sheet [Table Text Block]	October 3, January 3, 2021 2021 Inventories: Raw materials $ — $ 191 Work-in-process 1,428 1,842 Finished goods 754 655 $ 2,182 $ 2,688 Other current assets: Prepaid taxes, royalties and other prepaid expenses $ 871 $ 884 Other 286 182 $ 1,157 $ 1,066 Property and equipment, net: Equipment $ 10,336 $ 10,471 Software 1,880 1,783 Furniture and fixtures 31 33 Leasehold improvements 466 466 12,713 12,753 Less: Accumulated depreciation and amortization (12,171 ) (12,205 ) $ 542 $ 548 Capitalized internal-use software, net: Capitalized internal-use software $ 1,568 $ 1,166 Less: Accumulated amortization (377 ) (180 ) $ 1,191 $ 986 Accrued liabilities: Employee related accruals $ 955 $ 762 Other 636 578 $ 1,591 $ 1,340

Note 6 - Leases (Tables)

Note 6 - Leases (Tables)	9 Months Ended
	Oct. 03, 2021
Notes Tables
Lease, Cost [Table Text Block]	Three Months Ended Nine Months Ended October 3, 2021 September 27, 2020 October 3, 2021 September 27, 2020 Operating lease costs: Fixed $ 101 $ 146 $ 306 $ 440 Short term 4 4 13 15 Total $ 105 $ 150 $ 319 $ 455 Finance lease costs: Amortization of ROU asset $ 87 $ 91 $ 591 $ 224 Interest 6 9 57 29 Total $ 93 $ 100 $ 648 $ 253
Lessee, Leases, Supplemental Cash Flow Information [Table Text Block]	Nine Months Ended October 3, September 27, 2021 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used for operating leases $ 100 $ 427 Operating cash flows used for finance leases 9 29 Financing cash flows used for financing leases 231 179 Total $ 340 $ 635 Right-of-use assets obtained in exchange for finance lease obligations $ 397 $ 773
Schedule of Right of Use Assets and Lease Liabilities [Table Text Block]	October 3, January 3, 2021 2021 Right-of-use assets: Operating leases $ 893 $ 1,134 Finance leases 829 705 Total right-of-use assets $ 1,722 $ 1,839 Lease liabilities: Operating leases $ 960 $ 1,212 Finance leases 836 670 Total lease liabilities $ 1,796 $ 1,882
Schedule of Future Lease Payments for Leases [Table Text Block]	Operating Leases Finance Leases 2021 (Remaining period) $ 100 $ 159 2022 409 475 2023 421 141 2024 107 106 Total lease payments 1,037 881 Less: Interest (77 ) (45 ) Present value of lease liabilities $ 960 $ 836
Schedule of Lease Terms and Weighted Average Discount Rate [Table Text Block]	October 3, January 3, 2021 2021 Right-of-use assets: Weighted-average remaining lease term (years) Operating leases 2.50 3.24 Finance leases 2.19 2.21 Weighted-average discount rates: Operating leases 6.00 % 6.00 % Finance leases 5.50 % 5.50 %

Note 8 - Stock-based Compensa_2

Note 8 - Stock-based Compensation (Tables)	9 Months Ended
	Oct. 03, 2021
Notes Tables
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]	Three Months Ended Nine Months Ended October 3, September 27, October 3, September 27, 2021 2020 2021 2020 Cost of revenue $ 78 $ 37 $ 132 $ 80 Research and development 282 51 521 73 Selling, general and administrative 525 170 802 448 Total $ 885 $ 258 $ 1,455 $ 601
Share-based Payment Arrangement, Activity [Table Text Block]	Shares Available for Grants Balance at January 3, 2021 320 Authorized shares 600 RSUs granted (377 ) PRSU's granted (175 ) Options cancelled 13 RSUs forfeited or expired 23 PRSUs forfeited or expired 239 Balance at October 3, 2021 643
Share-based Payment Arrangement, Option, Activity [Table Text Block]	Weighted Weighted Average Average Aggregate Number of Exercise Remaining Intrinsic Shares Price Term Value (in thousands) (in years) (in thousands) Balance outstanding at January 3, 2021 121 $ 28.46 3.75 — Forfeited or expired (13 ) $ 23.84 Balance outstanding at October 3, 2021 108 $ 29.04 2.99 $ — Exercisable at October 3, 2021 108 $ 29.04 2.99 $ — Vested and expected to vest at October 3, 2021 108 $ 29.04 2.99 $ —
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]	RSUs & PRSUs Outstanding Weighted Average Number of Grant Date Shares Fair Value (in thousands) Nonvested at January 3, 2021 800 $ 4.99 Granted 552 5.82 Vested (537 ) 5.00 Forfeited (262 ) 4.99 Nonvested at October 3, 2021 553 $ 5.81

Note 10 - Information Concern_2

Note 10 - Information Concerning Product Lines, Geographic Information and Revenue Concentration (Tables)	9 Months Ended
	Oct. 03, 2021
Notes Tables
Revenue from External Customers by Products and Services [Table Text Block]	Three Months Ended Nine Months Ended October 3, September 27, October 3, September 27, 2021 2020 2021 2020 New products $ 2,758 $ 639 $ 5,095 $ 1,945 Mature products 1,100 1,141 3,885 4,189 Total revenue $ 3,858 $ 1,780 $ 8,980 $ 6,134 Three Months Ended Nine Months Ended October 3, September 27, October 3, September 27, 2021 2020 2021 2020 Device sales $ 2,858 $ 1,766 $ 7,830 $ 6,002 IP license and other services 1,000 14 1,150 132 Total revenue $ 3,858 $ 1,780 $ 8,980 $ 6,134
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	Three Months Ended Nine Months Ended October 3, September 27, October 3, September 27, 2021 2020 2021 2020 Asia Pacific (1) (4) $ 763 $ 320 $ 2,440 $ 1,505 North America (2) 2,605 1,087 4,429 3,321 Europe (3) 490 373 2,111 1,308 Total revenue $ 3,858 $ 1,780 $ 8,980 $ 6,134
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]	Three Months Ended Nine Months Ended October 3, September 27, October 3, September 27, 2021 2020 2021 2020 Distributor "A" 12 % 22 % 13 % 29 % Distributor "C" * 20 % 12 % 18 % Distributor "E" 17 % 13 % 24 % 19 % Customer "B" * 10 % * 12 % Customer "E" * * 14 % * Customer "F" 17 % 13 % 24 % 19 % Customer "K" * 12 % * * Customer "N" 25 % 16 % 15 % * Customer "O" 25 % * 11 % * October 3, January 3, 2021 2021 Distributor "A" 12 % * Distributor "E" 18 % * Distributor "J" 41 % * Customer "O" 21 % * Customer "P" * 67 % Customer "Q" * 10 %

Note 1 - The Company and Basi_2

Note 1 - The Company and Basis of Presentation (Details Textual) - USD ($)	Sep. 30, 2021	Sep. 22, 2021	Dec. 11, 2020	Jul. 21, 2020	Jun. 22, 2020	Sep. 30, 2021	Jul. 21, 2020	Oct. 03, 2021	Sep. 27, 2020	Jun. 28, 2020	Oct. 03, 2021	Sep. 27, 2020	Aug. 16, 2021	Jan. 03, 2021	May 06, 2020
Restructuring Charges, Total											$ 0	$ 624,000
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Ending Balance								$ 19,581,000			19,581,000			$ 22,748,000
Line of Credit, Current								15,000,000			15,000,000			15,000,000
Notes Payable, Noncurrent, Total								$ 0			$ 0			$ 1,192,000
Common Stock, Par or Stated Value Per Share (in dollars per share)								$ 0.001			$ 0.001			$ 0.001
Proceeds from Issuance of Common Stock											$ 148,000	$ 0
Underwritten Public Offering [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share)					$ 0.001
Common Stock [Member]
Stock Issued During Period, Shares, New Issues (in shares)								199,000	142,000	2,500,000
Common Stock [Member] | Underwritten Public Offering [Member]
Proceeds from Issuance of Common Stock, Net							$ 8,100,000
Stock Issued During Period, Shares, New Issues (in shares)					2,500,000
Shares Issued, Price Per Share (in dollars per share)					$ 3.50
Proceeds from Issuance of Common Stock					$ 8,800,000		9,300,000
Payments of Stock Issuance Costs					$ 1,100,000		$ 1,200,000
Common Stock [Member] | Exercise of Option for Overallotment of Shares by Underwriters [Member]
Stock Issued During Period, Shares, New Issues (in shares)				141,733	375,000
Proceeds from Issuance of Common Stock				$ 496,000
Payments of Stock Issuance Costs				$ 52,000
Common Stock [Member] | Share Subscription Agreement [Member]
Proceeds from Issuance of Common Stock, Net	$ 1,000,000
Stock Issued During Period, Shares, New Issues (in shares)	73,664	125,000
Payments of Stock Issuance Costs	$ 45,000
Heritage Bank of Commerce [Member] | Paycheck Protection Program [Member]
Notes Payable, Noncurrent, Total								$ 1,200,000			1,200,000
Proceeds from Issuance of Common Stock, Net						$ 1,000,000
Debt Instrument, Face Amount															$ 1,200,000
Heritage Bank of Commerce [Member] | Revolving Credit Facility [Member]
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Ending Balance								19,600,000			19,600,000
Line of Credit, Current								$ 15,000,000			$ 15,000,000			$ 15,000,000
Line of Credit Facility, Expiration Period (Year)			1 year
Minimum Cash Required for Covenant Related to Credit Facility													$ 3,000,000
Debt Instrument, Interest Rate, Effective Percentage								3.75%			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%

Note 2 - Significant Accounti_2

Note 2 - Significant Accounting Policies (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020	Jan. 03, 2021
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 3,858,000	$ 1,780,000	$ 8,980,000	$ 6,134,000
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Ending Balance	19,581,000		19,581,000		$ 22,748,000
Pledged Cash Security Related to Use of Credit Cards	100,000		$ 100,000		$ 100,000
License [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 1,000,000

Note 3 - Net Loss Per Share (De

Note 3 - Net Loss Per Share (Details Textual) - shares	3 Months Ended		9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020	May 29, 2018
Maximum [Member] | Common Stock [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)					386,100
Share-based Payment Arrangement [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	690,719	979,363	690,719	979,363

Note 4 - Balance Sheet Compon_3

Note 4 - Balance Sheet Components - Balance Sheet Components (Details) - USD ($) $ in Thousands	Oct. 03, 2021	Jan. 03, 2021
Inventories:
Raw materials	$ 0	$ 191
Work-in-process	1,428	1,842
Finished goods	754	655
Inventory, Net, Total	2,182	2,688
Other current assets:
Prepaid taxes, royalties and other prepaid expenses	871	884
Other	286	182
Other Assets, Current	1,157	1,066
Property and equipment, net:
Property and equipment, gross	12,713	12,753
Less: Accumulated depreciation and amortization	(12,171)	(12,205)
Property, Plant and Equipment, Net, Ending Balance	542	548
Capitalized internal-use software, net:
Capitalized internal-use software	1,568	1,166
Less: Accumulated amortization	(377)	(180)
Capitalized Computer Software, Net, Ending Balance	1,191	986
Accrued liabilities:
Employee related accruals	955	762
Other	636	578
Accrued Liabilities, Current, Total	1,591	1,340
Equipment [Member]
Property and equipment, net:
Property and equipment, gross	10,336	10,471
Software [Member]
Property and equipment, net:
Property and equipment, gross	1,880	1,783
Furniture and Fixtures [Member]
Property and equipment, net:
Property and equipment, gross	31	33
Leasehold Improvements [Member]
Property and equipment, net:
Property and equipment, gross	$ 466	$ 466

Note 5 - Debt Obligations (Deta

Note 5 - Debt Obligations (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020	Jan. 03, 2021	May 06, 2020
Line of Credit, Current	$ 15,000,000		$ 15,000,000		$ 15,000,000
Gain (Loss) on Extinguishment of Debt, Total	0	$ 0	1,192,000	$ 0
Heritage Bank of Commerce [Member] | Paycheck Protection Program [Member]
Debt Instrument, Face Amount						$ 1,200,000
Debt Instrument, Interest Rate, Stated Percentage						1.00%
Gain (Loss) on Extinguishment of Debt, Total			1,200,000
Heritage Bank of Commerce [Member] | Revolving Credit Facility [Member]
Line of Credit, Current	$ 15,000,000		$ 15,000,000		$ 15,000,000
Debt Instrument, Interest Rate, Effective Percentage	3.75%		3.75%		3.75%
Interest Expense, Debt, Total	$ 21,941	$ 28,146	$ 68,109	$ 270,521

Note 6 - Leases (Details Textua

Note 6 - Leases (Details Textual)	Jul. 10, 2020USD ($)ft²	Oct. 03, 2021USD ($)	Sep. 27, 2020USD ($)	Oct. 03, 2021USD ($)	Sep. 27, 2020USD ($)	Jan. 03, 2021USD ($)
Operating and Finance Lease, Right of Use Asset		$ 1,722,000		$ 1,722,000		$ 1,839,000
Operating and Finance Lease Liability		1,796,000		1,796,000		$ 1,882,000
Operating Lease, Expense		$ 105,000	$ 150,000	$ 319,000	$ 455,000
Restructuring Charges [Member]
Operating Lease, Expense	$ 39,000
Office Premises in India [Member]
Area of Real Estate Property (Square Foot) | ft²	1,100
Office in India [Member]
Lessee, Operating Lease, Term of Contract (Year)	11 months
Minimum [Member]
Lessee, Operating Lease, Term of Contract (Year)		1 year		1 year
Lessee, Finance Lease, Term of Contract (Year)		2 years		2 years
Maximum [Member]
Lessee, Operating Lease, Term of Contract (Year)		5 years		5 years
Lessee, Finance Lease, Term of Contract (Year)		3 years		3 years

Note 6 - Leases - Summary of Op

Note 6 - Leases - Summary of Operating and Finance Leases (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020
Fixed	$ 101	$ 146	$ 306	$ 440
Short term	4	4	13	15
Total	105	150	319	455
Amortization of ROU asset	87	91	591	224
Interest	6	9	57	29
Total	$ 93	$ 100	$ 648	$ 253

Note 6 - Leases - Summary of Su

Note 6 - Leases - Summary of Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020
Operating cash flows used for operating leases	$ 100	$ 427
Operating cash flows used for finance leases	9	29
Financing cash flows used for financing leases	231	179
Total	340	635
Right-of-use assets obtained in exchange for finance lease obligations	$ 397	$ 773

Note 6 - Leases - Details of Ri

Note 6 - Leases - Details of Right-of-Use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Oct. 03, 2021	Jan. 03, 2021
Operating leases	$ 893	$ 1,134
Finance leases	829	705
Total right-of-use assets	1,722	1,839
Finance leases	836	670
Total lease liabilities	1,796	1,882
Current and Lease Liabilities - Non-current [Member]
Operating leases	$ 960	$ 1,212

Note 6 - Leases - Schedule of F

Note 6 - Leases - Schedule of Future Lease Payments for Leases (Details) - USD ($) $ in Thousands	Oct. 03, 2021	Jan. 03, 2021
Operating leases, 2021 (Remaining period)	$ 100
Finance leases, 2021 (Remaining period)	159
Operating leases, 2022	409
Finance leases, 2022	475
Operating leases, 2023	421
Finance leases, 2023	141
Operating leases, 2024	107
Finance leases, 2024	106
Total lease payments, operating	1,037
Total lease payments, finance	881
Less: Interest, operating	(77)
Less: Interest, finance	(45)
Present value of lease liabilities, finance	836	$ 670
Current and Lease Liabilities - Non-current [Member]
Present value of lease liabilities, operating	$ 960	$ 1,212

Note 6 - Leases - Schedule of L

Note 6 - Leases - Schedule of Lease Terms and Weighted Average Discount Rate (Details)	Oct. 03, 2021	Jan. 03, 2021
Operating leases (Year)	2 years 6 months	3 years 2 months 26 days
Finance leases (Year)	2 years 2 months 8 days	2 years 2 months 15 days
Operating leases	6.00%	6.00%
Finance leases	5.50%	5.50%

Note 7 - Employee Stock Plans (

Note 7 - Employee Stock Plans (Details Textual) - shares	May 12, 2021	Mar. 05, 2020	Apr. 26, 2017	Apr. 23, 2015	Oct. 03, 2021	Apr. 24, 2019
Stock Plan 2019 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)					642,899	357,143
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized (in shares)	600,000	550,000
Stock Plan 2009 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)						241,203
The 2009 Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)					281,859
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized (in shares)		300,000	107,143	71,429

Note 8 - Stock-based Compensa_3

Note 8 - Stock-based Compensation (Details Textual) - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020
Share-based Payment Arrangement, Amount Capitalized			$ 0	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)	0	0	0	0
Share-based Payment Arrangement, Expense	$ 885,000	$ 258,000	$ 1,455,000	$ 601,000
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount	0		0
Employee Stock Purchase Plan [Member]
Share-based Payment Arrangement, Expense	31,000	16,000	97,000	24,000
Share-based Payment Arrangement, Option [Member]
Share-based Payment Arrangement, Expense	0	11,000	0	39,000
RSUs and PRSUs [Member]
Share-based Payment Arrangement, Expense	854,000	231,000	1,400,000	538,000
Restricted Stock Units (RSUs) [Member]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total	$ 2,100,000	$ 1,200,000	$ 2,100,000	$ 1,200,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	1 year 4 months 20 days		1 year 4 months 20 days

Note 8 - Stock-based Compensa_4

Note 8 - Stock-based Compensation - Schedule of Allocation of Recognized Period Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020
Total costs and expenses	$ 885	$ 258	$ 1,455	$ 601
Cost of Sales [Member]
Total costs and expenses	78	37	132	80
Research and Development Expense [Member]
Total costs and expenses	282	51	521	73
Selling, General and Administrative Expenses [Member]
Total costs and expenses	$ 525	$ 170	$ 802	$ 448

Note 8 - Stock-based Compensa_5

Note 8 - Stock-based Compensation - Schedule of Stock Based Compensation Award Activity (Details) shares in Thousands	9 Months Ended
	Oct. 03, 2021shares
Options cancelled (in shares)	13
Stock Plan 2019 [Member]
Balance (in shares)	320
Authorized shares (in shares)	600
Options cancelled (in shares)	13
Balance (in shares)	643
Stock Plan 2019 [Member] | Restricted Stock Units (RSUs) [Member]
Granted (in shares)	(377)
Forfeited or expired (in shares)	23
Stock Plan 2019 [Member] | Performance Restricted Stock Units (PRSUs) [Member]
Granted (in shares)	(175)
Forfeited or expired (in shares)	239

Note 8 - Stock-Based Compensa_6

Note 8 - Stock-Based Compensation - Stock Options Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended	12 Months Ended
	Oct. 03, 2021	Jan. 03, 2021
Balance, options (in shares)	121
Weighted average price balance (in dollars per share)	$ 28.46
Weighted average remaining term, balance (Year)	2 years 11 months 26 days	3 years 9 months
Forfeited or expired (in shares)	(13)
Weighted average price, forfeited or expired (in dollars per share)	$ 23.84
Balance, options (in shares)	108	121
Weighted average price balance (in dollars per share)	$ 29.04	$ 28.46
Aggregate intrinsic value	$ 0
Exercisable (in shares)	108
Weighted average price, exercisable (in dollars per share)	$ 29.04
Weighted average remaining term, exercisable (Year)	2 years 11 months 26 days
Aggregate intrinsic value, exercisable	$ 0
Vested and expected to vest (in shares)	108
Weighted average price, vested and expected to vest (in dollars per share)	$ 29.04
Weighted average remaining term, vested and expected to vest (Year)	2 years 11 months 26 days
Aggregate intrinsic value, vested and expected to vest	$ 0

Note 8 - Stock-Based Compensa_7

Note 8 - Stock-Based Compensation - Summary of Restricted Stock Units Activity (Details) - RSUs and PRSUs [Member] shares in Thousands	9 Months Ended
	Oct. 03, 2021$ / sharesshares
Balance (in shares) | shares	800
Balance, weighted average grant date fair value (in dollars per share) | $ / shares	$ 4.99
Granted, number of shares (in shares) | shares	552
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	$ 5.82
Vested, number of shares (in shares) | shares	(537)
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 5
Forfeited, number of shares (in shares) | shares	(262)
Forfeited, weighted average grant date fair value (in dollars per share) | $ / shares	$ 4.99
Balance (in shares) | shares	553
Balance, weighted average grant date fair value (in dollars per share) | $ / shares	$ 5.81

Note 9 - Income Taxes (Details

Note 9 - Income Taxes (Details Textual) - USD ($)	3 Months Ended				9 Months Ended
	Oct. 03, 2021	Apr. 04, 2021	Sep. 27, 2020	Jun. 28, 2020	Oct. 03, 2021	Sep. 27, 2020	Jan. 03, 2021
Income Tax Expense (Benefit), Total	$ (21,000)		$ 10,000		$ 136,000	$ 1,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 0				0		$ 0
Proceeds from Notes Payable, Total					$ 0	$ 1,191,000
Paycheck Protection Program [Member]
Proceeds from Notes Payable, Total				$ 1,200,000
Potential India Restructure [Member]
Income Tax Expense (Benefit), Withholding Tax		$ 125,000

Note 10 - Information Concern_3

Note 10 - Information Concerning Product Lines, Geographic Information and Revenue Concentration (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 3,858,000	$ 1,780,000	$ 8,980,000	$ 6,134,000
JAPAN
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 739,000	$ 271,000	$ 2,400,000	$ 1,400,000
JAPAN | Geographic Concentration Risk [Member] | Revenue Benchmark [Member]
Concentration Risk, Percentage	19.00%	15.00%	26.00%	23.00%
UNITED STATES
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 2,600,000	$ 1,100,000	$ 4,400,000	$ 3,300,000
UNITED STATES | Geographic Concentration Risk [Member] | Revenue Benchmark [Member]
Concentration Risk, Percentage	67.00%	61.00%	49.00%	54.00%
UNITED KINGDOM
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 273,000	$ 211,000	$ 1,379,000	$ 586,000
UNITED KINGDOM | Geographic Concentration Risk [Member] | Revenue Benchmark [Member]
Concentration Risk, Percentage	7.00%	12.00%	15.00%	10.00%

Note 10 - Information Concern_4

Note 10 - Information Concerning Product Lines, Geographic Information and Revenue Concentration - Schedule of Revenue by Product Line (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020
Revenue	$ 3,858	$ 1,780	$ 8,980	$ 6,134
Total revenue	3,858	1,780	8,980	6,134
New Products [Member]
Revenue	2,758	639	5,095	1,945
Total revenue	2,758	639	5,095	1,945
Device Sales [Member]
Revenue	2,858	1,766	7,830	6,002
Total revenue	2,858	1,766	7,830	6,002
Mature Products [Member]
Revenue	1,100	1,141	3,885	4,189
Total revenue	1,100	1,141	3,885	4,189
IP License and Other Services [Member]
Revenue	1,000	14	1,150	132
Total revenue	$ 1,000	$ 14	$ 1,150	$ 132

Note 10 - Information Concern_5

Note 10 - Information Concerning Product Lines, Geographic Information and Revenue Concentration - Schedule of Revenue by Shipment Destination (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Oct. 03, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020
Total revenue		$ 3,858	$ 1,780	$ 8,980	$ 6,134
Asia Pacific [Member]
Total revenue	[1],[2]	763	320	2,440	1,505
North America [Member]
Total revenue	[3]	2,605	1,087	4,429	3,321
Europe [Member]
Total revenue	[4]	$ 490	$ 373	$ 2,111	$ 1,308
[1]	Asia Pacific includes revenue from Japan of $739?,000, or 19% of total revenue and $271,000 or 15% of total revenue for the three months ended October 3, 2021 and September 27, 2020, respectively. For the nine months ended October 3, 2021 and September 27, 2020, revenue from Japan was $2.4 million, or 26% of total revenue, and $1.4 million, or 23% of total revenue, respectively.
[2]	Certain prior period amounts have been reclassified to conform to current period presentation.
[3]	North America includes revenue from the United States of $?2.6 million or 67% of total revenue, and $1.1 million, or 61% of total revenue, for the three months ended October 3, 2021 and September 27, 2020, respectively. For the nine months ended October 3, 2021 and September 27, 2020 revenue from the United States was ????$4.4 million, or 49% of total revenue, and $3.3 million, or 54% of total revenue, respectively.
[4]	Europe includes revenue from United Kingdom of $273,000, or 7% of total revenue and $211,000 or 12% of total revenue for the three months ended October 3, 2021 and September 27, 2020 , respectively. For the nine months ended October 3, 2021 and September 27, 2020, revenue from United Kingdom of $1,379,000, or 15% of total revenue, and $586,000 or 10% of total revenue, respectively.

Note 10 - Information Concern_6

Note 10 - Information Concerning Product Lines, Geographic Information and Revenue Concentration - Customer and Distributor Concentration (Details) - Customer Concentration Risk [Member]	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020	Jan. 03, 2021
Distributor "A" [Member] | Accounts Receivable [Member]
Concentration risk percentage			12.00%
Distributor "A" [Member] | Revenue Benchmark [Member]
Concentration risk percentage	12.00%	22.00%	13.00%	29.00%
Distributor "E" [Member] | Accounts Receivable [Member]
Concentration risk percentage			18.00%
Distributor "E" [Member] | Revenue Benchmark [Member]
Concentration risk percentage	17.00%	13.00%	24.00%	19.00%
Distributor "C" [Member] | Revenue Benchmark [Member]
Concentration risk percentage		20.00%	12.00%	18.00%
Distributor "J" [Member] | Accounts Receivable [Member]
Concentration risk percentage			41.00%
Customer "O" [Member] | Accounts Receivable [Member]
Concentration risk percentage			21.00%
Customer "O" [Member] | Revenue Benchmark [Member]
Concentration risk percentage	25.00%		11.00%
Customer "B" [Member] | Revenue Benchmark [Member]
Concentration risk percentage		10.00%		12.00%
Customer P [Member] | Accounts Receivable [Member]
Concentration risk percentage					67.00%
Customer "E" [Member] | Revenue Benchmark [Member]
Concentration risk percentage			14.00%
Customer Q [Member] | Accounts Receivable [Member]
Concentration risk percentage					10.00%
Customer "F" [Member] | Revenue Benchmark [Member]
Concentration risk percentage	17.00%	13.00%	24.00%	19.00%
Customer "K" [Member] | Revenue Benchmark [Member]
Concentration risk percentage		12.00%
Customer "N" [Member] | Revenue Benchmark [Member]
Concentration risk percentage	25.00%	16.00%	15.00%

Note 11 - Commitments and Con_2

Note 11 - Commitments and Contingencies (Details Textual) - USD ($)	Oct. 03, 2021	Jan. 03, 2021
Wafer Purchase Commitment [Member]
Purchase Commitment, Remaining Minimum Amount Committed	$ 632,000	$ 60,000
Other Goods and Services [Member]
Purchase Obligation, Total	$ 1,000,000