QuickLogic (QUIK) 10-Q 18 Aug 21 2021 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jul. 04, 2021	Aug. 12, 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	Q2
Document Fiscal Year Focus	2021
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jul. 4, 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		11,541,978

Unaudited Condensed Consolidate

Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 04, 2021	Jan. 03, 2021
Current assets:
Cash, cash equivalents and restricted cash	$ 18,996	$ 22,748
Accounts receivable, net of allowances for doubtful accounts of $32 and $0, respectively	2,063	1,688
Inventories	2,205	2,688
Other current assets	984	1,066
Total current assets	24,248	28,190
Property and equipment, net	577	548
Capitalized internal-use software, net	1,135	986
Right of use assets	1,483	1,839
Intangible assets	806	860
Goodwill	185	185
Other assets	280	280
TOTAL ASSETS	28,714	32,888
Current liabilities:
Revolving line of credit	15,000	15,000
Trade payables	1,316	935
Accrued liabilities	1,606	1,340
Deferred revenue	76	52
Lease liabilities, current	674	685
Total current liabilities	18,672	18,012
Long-term liabilities:
Notes payable, non-current	0	1,192
Lease liabilities, non-current	884	1,197
Other long-term liabilities	189	0
Total liabilities	19,745	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; 11,512 and 11,094 shares issued and outstanding as of July 4, 2021 and January 3, 2021, respectively	12	11
Additional paid-in capital	307,117	306,885
Accumulated deficit	(298,160)	(294,409)
Total stockholders' equity	8,969	12,487
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 28,714	$ 32,888

Unaudited Condensed Consolida_2

Unaudited Condensed Consolidated Balance Sheets (Parentheticals) - USD ($) shares in Thousands, $ in Thousands	Jul. 04, 2021	Jan. 03, 2021
Allowance for doubtful accounts	$ 32	$ 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)	11,512	11,094
Common stock, shares outstanding (in shares)	11,512	11,094

Unaudited Condensed Consolida_3

Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Revenue	$ 2,882,000	$ 2,196,000	$ 5,122,000	$ 4,354,000
Cost of revenue	1,416,000	1,192,000	2,512,000	2,235,000
Gross profit	1,466,000	1,004,000	2,610,000	2,119,000
Operating expenses:
Research and development	1,652,000	2,200,000	3,539,000	4,019,000
Selling, general and administrative	1,794,000	1,665,000	3,741,000	3,544,000
Restructuring costs	0	34,000	0	513,000
Total operating expenses	3,446,000	3,899,000	7,280,000	8,076,000
Loss from operations	(1,980,000)	(2,895,000)	(4,670,000)	(5,957,000)
Interest expense	(32,000)	(183,000)	(64,000)	(263,000)
Gain on forgiveness of debt	0	0	1,192,000	0
Interest income and other income (expense), net	(45,000)	72,000	(52,000)	67,000
Loss before income taxes	(2,057,000)	(3,006,000)	(3,594,000)	(6,153,000)
Provision for (benefit from) income taxes	5,000	(27,000)	157,000	(9,000)
Net loss	$ (2,062,000)	$ (2,979,000)	$ (3,751,000)	$ (6,144,000)
Net loss per share:
Basic and diluted (in dollars per share)	$ (0.18)	$ (0.35)	$ (0.33)	$ (0.73)
Weighted average shares outstanding:
Basic and diluted (in shares)	11,485	8,560	11,374	8,461

Unaudited Condensed Consolida_4

Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020
Cash flows from operating activities:
Net loss	$ (3,751)	$ (6,144)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	323	490
Stock-based compensation	570	343
Write-down of inventories	229	43
Write-off of equipment	0	4
Gain on forgiveness of debt	(1,192)	0
Allowance for bad debt	32	0
Changes in operating assets and liabilities:
Accounts receivable	(407)	867
Inventories	254	165
Other assets	82	425
Trade payables	569	574
Accrued liabilities and deferred revenue	290	(345)
Other long-term liabilities	189	0
Net cash used in operating activities	(2,812)	(3,578)
Cash flows from investing activities:
Capital expenditures for property and equipment	(174)	(40)
Capitalized internal-use software	(273)	(396)
Net cash used in investing activities	(447)	(436)
Cash flows from financing activities:
Payment of finance lease obligations	(156)	(120)
Proceeds from paycheck protection program loan	0	1,191
Proceeds from line of credit	30,000	27,000
Repayment of line of credit	(30,000)	(27,000)
Proceeds from issuance of common stock, net of issuance costs	148	7,847
Taxes paid related to settlement of equity awards	(485)	(54)
Net cash (used in) provided by financing activities	(493)	8,864
Net (decrease) increase in cash, cash equivalents and restricted cash	(3,752)	4,850
Cash, cash equivalents and restricted cash at beginning of period	22,748	21,548
Cash, cash equivalents and restricted cash at end of period	$ 18,996	$ 26,398

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]	Retained Earnings [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				(6,144)
Balance (in shares) at Jun. 28, 2020	10,912
Balance at Jun. 28, 2020	$ 11	305,013	(289,402)	15,622
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 of $1.1 million (in shares)	2,500
Common stock offering, net of issuance costs of $1.1 million	$ 3	7,653	0	7,656
Balance (in shares) at Jun. 28, 2020	10,912
Balance at Jun. 28, 2020	$ 11	305,013	(289,402)	15,622
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				(3,751)
Balance (in shares) at Jul. 04, 2021	11,512
Balance at Jul. 04, 2021	$ 12	307,117	(298,160)	8,969
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

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Changes In Stockholders' Equity (Unaudited) (Parentheticals) $ in Millions	3 Months Ended
	Jun. 28, 2020USD ($)
Stock issuance cost	$ 1.1

Note 1 - The Company and Basis

Note 1 - The Company and Basis of Presentation	6 Months Ended
	Jul. 04, 2021
Notes to Financial Statements
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]	Note 1 — The Company and Basis of Presentation 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 six July 4, 2021 not may QuickLogic's fiscal year ends on the Sunday closest to December 31 second 2021 2020 July 4, 2021 June 28, 2020 COVID- 19 On January 30, 2020, 19 February 28, 2020, 19 19 19 As such, while COVID- 19 three six July 4, 2021 19 2021 may 19. 19 19 may may 19 Restructuring In January 2020, January 24, 2020. three six June 28, 2020, three six July 4, 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 July 4, 2021 January 2021. On December 11, 2020, December 21, 2018 ( one September 28 2022, one one The Company was in compliance with all loan covenants as of July 4, 2021 July 4, 2021 On May 6, 2020, March 27, 2020, January 26, 2021, 5 On June 22, 2020, 30 July 21, 2020 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. 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	6 Months Ended
	Jul. 04, 2021
Notes to Financial Statements
Significant Accounting Policies [Text Block]	Note 2 — Significant Accounting Policies During the six July 4, 2021 no 10 January 3, 2021 six July 4, 2021 10 January 3, 2021 March 23, 2021. six 2021 Fair Value Measurements The Company’s cash, cash equivalents and restricted cash include money market account balance of $19.0 million and $22.7 million as of July 4, 2021 January 3, 2021 Restricted cash Cash, cash equivalent and restricted cash includes an amount of $100,000 p July 4, 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	6 Months Ended
	Jul. 04, 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 six July 4, 2021 June 28, 2020 2009 not May 29, 2018, not three six July 4, 2021 June 28, 2020

Note 4 - Balance Sheet Componen

Note 4 - Balance Sheet Components	6 Months Ended
	Jul. 04, 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 July 4, 2021 January 3, 2021 July 4, January 3, 2021 2021 Inventories: Raw materials $ 156 $ 191 Work-in-process 1,380 1,842 Finished goods 669 655 $ 2,205 $ 2,688 Other current assets: Prepaid taxes, royalties and other prepaid expenses $ 792 $ 884 Other 192 182 $ 984 $ 1,066 Property and equipment, net: Equipment $ 10,510 $ 10,471 Software 1,889 1,783 Furniture and fixtures 33 33 Leasehold improvements 466 466 12,898 12,753 Less: Accumulated depreciation and amortization (12,321 ) (12,205 ) $ 577 $ 548 Capitalized internal-use software, net: Capitalized internal-use software $ 1,439 $ 1,166 Less: Accumulated amortization (304 ) (180 ) $ 1,135 $ 986 Accrued liabilities: Employee related accruals $ 931 $ 762 Other 675 578 $ 1,606 $ 1,340

Note 5 - Debt Obligations

Note 5 - Debt Obligations	6 Months Ended
	Jul. 04, 2021
Notes to Financial Statements
Debt and Capital Leases Disclosures [Text Block]	Note 5 Revolving Line of Credit As of July 4, 2021 January 3, 2021 first three July 4, 2021 June 28, 2020, six July 4, 2021 June 28, 2020, Payroll Protection Program Loan On May 6, 2020, May 6, 2020 two first six six fourth 2020 January 26, 2021, six July 4, 2021

Note 6 - Leases

Note 6 - Leases	6 Months Ended
	Jul. 04, 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 July 4, 2021 July 2020 July 10, 2020, eleven July 2020, July 2021. three July 4, 2021 June 28, 2020 six July 4, 2021 June 28, 2020 Three Months Ended Six Months Ended July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Operating lease costs: Fixed $ 101 $ 153 $ 204 $ 294 Short term 5 5 9 11 Total $ 106 $ 158 $ 213 $ 305 Finance lease costs: Amortization of ROU asset $ 98 $ 52 $ 513 $ 101 Interest 6 8 52 14 Total $ 104 $ 60 $ 565 $ 115 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 six July 4, 2021 June 28, 2020 Six Months Ended July 4, June 28, 2021 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used for operating leases $ 202 $ 260 Operating cash flows used for finance leases 5 14 Financing cash flows used for financing leases 156 120 Total $ 363 $ 394 Right-of-use assets obtained in exchange for finance lease obligations $ — $ 773 The following table provides the details of right-of-use assets and lease liabilities as of July 4, 2021 January 3, 2021 July 4, January 3, 2021 2021 Right-of-use assets: Operating leases $ 974 $ 1,134 Finance leases 509 705 Total right-of-use assets $ 1,483 $ 1,839 Lease liabilities: Operating leases $ 1,045 $ 1,212 Finance leases 513 670 Total lease liabilities $ 1,558 $ 1,882 The following table provided the details of future lease payments for operating and finance leases as of July 4, 2021 Operating Leases Finance Leases 2021 (Remaining period) $ 200 $ 205 2022 409 334 2023 421 — 2024 107 — Total lease payments 1,137 539 Less: Interest (92 ) (26 ) Present value of lease liabilities $ 1,045 $ 513 The following table provides the details of lease terms and discount rates as of July 4, 2021 January 3, 2021 July 4, January 3, 2021 2021 Right-of-use assets: Weighted-average remaining lease term (years) Operating leases 2.75 3.24 Finance leases 1.72 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	6 Months Ended
	Jul. 04, 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 July 4, 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 July 4, 2021 2009

Note 8 - Stock-based Compensati

Note 8 - Stock-based Compensation	6 Months Ended
	Jul. 04, 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 six July 4, 2021 June 28, 2020 Three Months Ended Six Months Ended July 4, June 28, July 4, June 28, 2021 2020 2021 2020 Cost of revenue $ 18 $ 31 $ 54 $ 43 Research and development 82 486 239 22 Selling, general and administrative 102 224 277 278 Total $ 202 $ 741 $ 570 $ 343 During the six June 28, 2020 second 2020, No stock-based compensation was capitalized during any period presented above. No three six July 4, 2021 June 28, 2020. Stock-Based Compensation Award Activity The following table summarizes the activity in the shares available for grant under the 2019 six July 4, 2021 Shares Available for Grants Balance at January 3, 2021 320 Authorized shares 600 RSUs granted (30 ) Options cancelled 11 RSUs forfeited or expired 19 PRSUs forfeited or expired 239 Balance at July 4, 2021 1,159 Stock Options The following table summarizes stock options outstanding and stock option activity under the 2009 2019 six July 4, 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 (11 ) $ 19.59 Balance outstanding at July 4, 2021 110 $ 29.31 3.16 $ — Exercisable at July 4, 2021 110 $ 29.31 3.16 $ — Vested and expected to vest at July 4, 2021 110 $ 29.31 3.16 $ — No stock options were granted during the three six July 4, 2021 June 28, 2020. Total stock-based compensation related to stock options was approximately $0 and $14,000 for the three July 4, 2021 June 28, 2020 six July 4, 2021 June 28, 2020 July 4, 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 July 4, 2021 June 28, 2020 six July 4, 2021 June 28, 2020 January 2020, six June 28, 2020. As of July 4, 2021 June 28, 2020 July 4, 2021 A summary of activity for the Company's RSUs and PRSUs for the six July 4, 2021 RSUs & PRSUs Outstanding Weighted Average Number of Grant Date Shares Fair Value (in thousands) Nonvested at January 3, 2021 800 $ 4.99 Granted 30 5.11 Vested (458 ) 4.88 Forfeited (258 ) 4.98 Nonvested at July 4, 2021 114 $ 5.46 Employee Stock Purchase Plan Total stock-based compensation related to the Company's ESPP was approximately $36,000 and $8,000 for the three July 4, 2021 June 28, 2020, six July 4, 2021 June 28, 2020

Note 9 - Income Taxes

Note 9 - Income Taxes	6 Months Ended
	Jul. 04, 2021
Notes to Financial Statements
Income Tax Disclosure [Text Block]	Note 9 The Company recorded a net income tax expense of $5,000 and a net income benefit of $27,000 for the three July 4, 2021 June 28, 2020, $9,000 six July 4, 2021 June 28, 2020 A majority of the income tax expense for the first 2021 one The Company believes it is more likely than not not not not not July 4, 2021 The Company had no unrecognized tax benefits as of July 4, 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 no July 4, 2021. may one 2021. one no 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	6 Months Ended
	Jul. 04, 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 Six Months Ended July 4, June 28, July 4, June 28, 2021 2020 2021 2020 New products $ 1,262 $ 820 $ 2,337 $ 1,306 Mature products 1,620 1,376 2,785 3,048 Total revenue $ 2,882 $ 2,196 $ 5,122 $ 4,354 Note: New products include all products manufactured on 180 180 The following is a breakdown of revenue by shipment destination (in thousands): Three Months Ended Six Months Ended July 4, June 28, July 4, June 28, 2021 2020 2021 2020 Asia Pacific (1) $ 1,075 $ 779 $ 1,828 $ 1,185 North America (2) 565 1,282 1,824 2,234 Europe 1,242 135 1,470 935 Total revenue $ 2,882 $ 2,196 $ 5,122 $ 4,354 ( 1 Asia Pacific includes revenue from Japan of $9 17 ,000, July 4, 2021 June 28, 2020, six July 4, 2021 June 28, 2020, was $1.6 million, or 32% of total ( 2 North America includes revenue from the United States of $562,000, three July 4, 2021 June 28, 2020, six July 4, 2021 June 28, 2020 $1.8 The following distributors and customers accounted for 10% Three Months Ended Six Months Ended July 4, June 28, July 4, June 28, 2021 2020 2021 2020 Distributor "A" 14 % 25 % 13 % 31 % Distributor "C" * * 16 % 17 % Distributor "E" 29 % 29 % 29 % 21 % Customer "B" * 12 % * 13 % Customer "E" 35 % * 20 % * Customer "F" 29 % 29 % 29 % 21 % Customer "M" * 12 % * * * Represents less than 10% The following distributors and customers accounted for 10% July 4, January 3, 2021 2021 Distributor "A" 11 % * Distributor "C" 10 % * Distributor "E" 22 % * Distributor "P" * 67 % Distributor "Q" * 10 % Distributor "J" 51 % * * Represents less than 10%

Note 11 - Commitments and Conti

Note 11 - Commitments and Contingencies	6 Months Ended
	Jul. 04, 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 July 4, 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 July 4, 2021 twelve Litigation From time to time, the Company may not third not may July 4, 2021 not India Transfer Pricing Notice On January 27, 2021, 2017 18, may not April 30, 2021, not six nine 19 may

Note 12 - Subsequent Events

Note 12 - Subsequent Events	6 Months Ended
	Jul. 04, 2021
Notes to Financial Statements
Subsequent Events [Text Block]	Note 12 On August 16, 2021,

Significant Accounting Policies

Significant Accounting Policies (Policies)	6 Months Ended
	Jul. 04, 2021
Accounting Policies [Abstract]
COVID 19, Impact on Business, Policy [Policy Text Block]	COVID- 19 On January 30, 2020, 19 February 28, 2020, 19 19 19 As such, while COVID- 19 three six July 4, 2021 19 2021 may 19. 19 19 may may 19
Costs Associated with Exit or Disposal Activity or Restructuring [Policy Text Block]	Restructuring In January 2020, January 24, 2020. three six June 28, 2020, three six July 4, 2021.
Liquidity, Policy [Policy Text Block]	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 July 4, 2021 January 2021. On December 11, 2020, December 21, 2018 ( one September 28 2022, one one The Company was in compliance with all loan covenants as of July 4, 2021 July 4, 2021 On May 6, 2020, March 27, 2020, January 26, 2021, 5 On June 22, 2020, 30 July 21, 2020 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.
Consolidation, Policy [Policy Text Block]	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 Transactions and Translations Policy [Policy Text Block]	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.
Use of Estimates, Policy [Policy Text Block]	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 Risk, Credit Risk, Policy [Policy Text Block]	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
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 $19.0 million and $22.7 million as of July 4, 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 July 4, 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)	6 Months Ended
	Jul. 04, 2021
Notes Tables
Condensed Balance Sheet [Table Text Block]	July 4, January 3, 2021 2021 Inventories: Raw materials $ 156 $ 191 Work-in-process 1,380 1,842 Finished goods 669 655 $ 2,205 $ 2,688 Other current assets: Prepaid taxes, royalties and other prepaid expenses $ 792 $ 884 Other 192 182 $ 984 $ 1,066 Property and equipment, net: Equipment $ 10,510 $ 10,471 Software 1,889 1,783 Furniture and fixtures 33 33 Leasehold improvements 466 466 12,898 12,753 Less: Accumulated depreciation and amortization (12,321 ) (12,205 ) $ 577 $ 548 Capitalized internal-use software, net: Capitalized internal-use software $ 1,439 $ 1,166 Less: Accumulated amortization (304 ) (180 ) $ 1,135 $ 986 Accrued liabilities: Employee related accruals $ 931 $ 762 Other 675 578 $ 1,606 $ 1,340

Note 6 - Leases (Tables)

Note 6 - Leases (Tables)	6 Months Ended
	Jul. 04, 2021
Notes Tables
Lease, Cost [Table Text Block]	Three Months Ended Six Months Ended July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Operating lease costs: Fixed $ 101 $ 153 $ 204 $ 294 Short term 5 5 9 11 Total $ 106 $ 158 $ 213 $ 305 Finance lease costs: Amortization of ROU asset $ 98 $ 52 $ 513 $ 101 Interest 6 8 52 14 Total $ 104 $ 60 $ 565 $ 115
Lessee, Leases, Supplemental Cash Flow Information [Table Text Block]	Six Months Ended July 4, June 28, 2021 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used for operating leases $ 202 $ 260 Operating cash flows used for finance leases 5 14 Financing cash flows used for financing leases 156 120 Total $ 363 $ 394 Right-of-use assets obtained in exchange for finance lease obligations $ — $ 773
Schedule of Right of Use Assets and Lease Liabilities [Table Text Block]	July 4, January 3, 2021 2021 Right-of-use assets: Operating leases $ 974 $ 1,134 Finance leases 509 705 Total right-of-use assets $ 1,483 $ 1,839 Lease liabilities: Operating leases $ 1,045 $ 1,212 Finance leases 513 670 Total lease liabilities $ 1,558 $ 1,882
Schedule of Future Lease Payments for Leases [Table Text Block]	Operating Leases Finance Leases 2021 (Remaining period) $ 200 $ 205 2022 409 334 2023 421 — 2024 107 — Total lease payments 1,137 539 Less: Interest (92 ) (26 ) Present value of lease liabilities $ 1,045 $ 513
Schedule of Lease Terms and Weighted Average Discount Rate [Table Text Block]	July 4, January 3, 2021 2021 Right-of-use assets: Weighted-average remaining lease term (years) Operating leases 2.75 3.24 Finance leases 1.72 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)	6 Months Ended
	Jul. 04, 2021
Notes Tables
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]	Three Months Ended Six Months Ended July 4, June 28, July 4, June 28, 2021 2020 2021 2020 Cost of revenue $ 18 $ 31 $ 54 $ 43 Research and development 82 486 239 22 Selling, general and administrative 102 224 277 278 Total $ 202 $ 741 $ 570 $ 343
Share-based Payment Arrangement, Activity [Table Text Block]	Shares Available for Grants Balance at January 3, 2021 320 Authorized shares 600 RSUs granted (30 ) Options cancelled 11 RSUs forfeited or expired 19 PRSUs forfeited or expired 239 Balance at July 4, 2021 1,159
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 (11 ) $ 19.59 Balance outstanding at July 4, 2021 110 $ 29.31 3.16 $ — Exercisable at July 4, 2021 110 $ 29.31 3.16 $ — Vested and expected to vest at July 4, 2021 110 $ 29.31 3.16 $ —
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 30 5.11 Vested (458 ) 4.88 Forfeited (258 ) 4.98 Nonvested at July 4, 2021 114 $ 5.46

Note 10 - Information Concern_2

Note 10 - Information Concerning Product Lines, Geographic Information and Revenue Concentration (Tables)	6 Months Ended
	Jul. 04, 2021
Notes Tables
Revenue from External Customers by Products and Services [Table Text Block]	Three Months Ended Six Months Ended July 4, June 28, July 4, June 28, 2021 2020 2021 2020 New products $ 1,262 $ 820 $ 2,337 $ 1,306 Mature products 1,620 1,376 2,785 3,048 Total revenue $ 2,882 $ 2,196 $ 5,122 $ 4,354
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	Three Months Ended Six Months Ended July 4, June 28, July 4, June 28, 2021 2020 2021 2020 Asia Pacific (1) $ 1,075 $ 779 $ 1,828 $ 1,185 North America (2) 565 1,282 1,824 2,234 Europe 1,242 135 1,470 935 Total revenue $ 2,882 $ 2,196 $ 5,122 $ 4,354
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]	Three Months Ended Six Months Ended July 4, June 28, July 4, June 28, 2021 2020 2021 2020 Distributor "A" 14 % 25 % 13 % 31 % Distributor "C" * * 16 % 17 % Distributor "E" 29 % 29 % 29 % 21 % Customer "B" * 12 % * 13 % Customer "E" 35 % * 20 % * Customer "F" 29 % 29 % 29 % 21 % Customer "M" * 12 % * * July 4, January 3, 2021 2021 Distributor "A" 11 % * Distributor "C" 10 % * Distributor "E" 22 % * Distributor "P" * 67 % Distributor "Q" * 10 % Distributor "J" 51 % *

Note 1 - The Company and Basi_2

Note 1 - The Company and Basis of Presentation (Details Textual) - USD ($)	Dec. 11, 2020	Jul. 21, 2020	Jun. 22, 2020	Jul. 21, 2020	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020	Jan. 03, 2021	May 06, 2020
Restructuring Charges, Total					$ 0	$ 34,000	$ 0	$ 513,000
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Ending Balance					18,996,000		18,996,000		$ 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
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)						2,500,000
Common Stock [Member] | Underwritten Public Offering [Member]
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
Proceeds from Issuance of Common Stock, Net				$ 8,100,000
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
Heritage Bank of Commerce [Member] | Paycheck Protection Program [Member]
Notes Payable, Noncurrent, Total					$ 1,200,000		$ 1,200,000
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					19,000,000		19,000,000
Line of Credit, Current					$ 15,000,000		$ 15,000,000		$ 15,000,000
Line of Credit Facility, Expiration Period (Year)	1 year
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 ($)	Jul. 04, 2021	Jan. 03, 2021
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Ending Balance	$ 18,996,000	$ 22,748,000
Pledged Cash Security Related to Use of Credit Cards	$ 100,000	$ 100,000

Note 3 - Net Loss Per Share (De

Note 3 - Net Loss Per Share (Details Textual) - shares	3 Months Ended
	Jul. 04, 2021	Jun. 28, 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)	254,895	626,178

Note 4 - Balance Sheet Compon_3

Note 4 - Balance Sheet Components - Balance Sheet Components (Details) - USD ($) $ in Thousands	Jul. 04, 2021	Jan. 03, 2021
Inventories:
Raw materials	$ 156	$ 191
Work-in-process	1,380	1,842
Finished goods	669	655
Inventory, Net, Total	2,205	2,688
Other current assets:
Prepaid taxes, royalties and other prepaid expenses	792	884
Other	192	182
Other Assets, Current	984	1,066
Property and equipment, net:
Property and equipment, gross	12,898	12,753
Less: Accumulated depreciation and amortization	(12,321)	(12,205)
Property, Plant and Equipment, Net, Ending Balance	577	548
Capitalized internal-use software, net:
Capitalized internal-use software	1,439	1,166
Less: Accumulated amortization	(304)	(180)
Capitalized Computer Software, Net, Ending Balance	1,135	986
Accrued liabilities:
Employee related accruals	931	762
Other	675	578
Accrued Liabilities, Current, Total	1,606	1,340
Equipment [Member]
Property and equipment, net:
Property and equipment, gross	10,510	10,471
Software [Member]
Property and equipment, net:
Property and equipment, gross	1,889	1,783
Furniture and Fixtures [Member]
Property and equipment, net:
Property and equipment, gross	33	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		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 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	$ 22,000	$ 172,000	$ 46,000	$ 242,000

Note 6 - Leases (Details Textua

Note 6 - Leases (Details Textual)	3 Months Ended		6 Months Ended
	Jul. 04, 2021USD ($)	Jun. 28, 2020USD ($)	Jul. 04, 2021USD ($)	Jun. 28, 2020USD ($)	Jan. 03, 2021USD ($)	Jul. 10, 2020ft²
Operating and Finance Lease, Right of Use Asset	$ 1,483,000		$ 1,483,000		$ 1,839,000
Operating and Finance Lease Liability	1,558,000		1,558,000		$ 1,882,000
Operating Lease, Expense	$ 106,000	$ 158,000	$ 213,000	$ 305,000
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		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Fixed	$ 101	$ 153	$ 204	$ 294
Short term	5	5	9	11
Total	106	158	213	305
Amortization of ROU asset	98	52	513	101
Interest	6	8	52	14
Total	$ 104	$ 60	$ 565	$ 115

Note 6 - Leases - Summary of Su

Note 6 - Leases - Summary of Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020
Operating cash flows used for operating leases	$ 202	$ 260
Operating cash flows used for finance leases	5	14
Financing cash flows used for financing leases	156	120
Total	363	394
Right-of-use assets obtained in exchange for finance lease obligations	$ 0	$ 773

Note 6 - Leases - Details of Ri

Note 6 - Leases - Details of Right-of-Use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Jul. 04, 2021	Jan. 03, 2021
Operating leases	$ 974	$ 1,134
Finance leases	509	705
Total right-of-use assets	1,483	1,839
Finance leases	513	670
Total lease liabilities	1,558	1,882
Current and Lease Liabilities - Non-current [Member]
Operating leases	$ 1,045	$ 1,212

Note 6 - Leases - Schedule of F

Note 6 - Leases - Schedule of Future Lease Payments for Leases (Details) - USD ($) $ in Thousands	Jul. 04, 2021	Jan. 03, 2021
Operating leases, 2021 (Remaining period)	$ 200
Finance leases, 2021 (Remaining period)	205
Operating leases, 2022	409
Finance leases, 2022	334
Operating leases, 2023	421
Finance leases, 2023	0
Operating leases, 2024	107
Finance leases, 2024	0
Total lease payments, operating	1,137
Total lease payments, finance	539
Less: Interest, operating	(92)
Less: Interest, finance	(26)
Present value of lease liabilities, finance	513	$ 670
Current and Lease Liabilities - Non-current [Member]
Present value of lease liabilities, operating	$ 1,045	$ 1,212

Note 6 - Leases - Schedule of L

Note 6 - Leases - Schedule of Lease Terms and Weighted Average Discount Rate (Details)	Jul. 04, 2021	Jan. 03, 2021
Operating leases (Year)	2 years 9 months	3 years 2 months 26 days
Finance leases (Year)	1 year 8 months 19 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	Jul. 04, 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)					1,158,052	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)						299,070
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		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 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
Share-based Payment Arrangement, Expense	$ 202,000	$ 741,000	$ 570,000	$ 343,000
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount	0		0
Employee Stock Purchase Plan [Member]
Share-based Payment Arrangement, Expense	36,000	8,000	66,000	8,000
Share-based Payment Arrangement, Option [Member]
Share-based Payment Arrangement, Expense	0	14,000	0	28,000
RSUs and PRSUs [Member]
Share-based Payment Arrangement, Expense	165,920	719,000	503,943	306,000
Restricted Stock Units (RSUs) [Member]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total	$ 225,011	$ 1,700,000	$ 225,011	$ 1,700,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	1 year 2 months 1 day		1 year 2 months 1 day

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		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Total costs and expenses	$ 202	$ 741	$ 570	$ 343
Cost of Sales [Member]
Total costs and expenses	18	31	54	43
Research and Development Expense [Member]
Total costs and expenses	82	486	239	22
Selling, General and Administrative Expenses [Member]
Total costs and expenses	$ 102	$ 224	$ 277	$ 278

Note 8 - Stock-based Compensa_5

Note 8 - Stock-based Compensation - Schedule of Stock Based Compensation Award Activity (Details) shares in Thousands	6 Months Ended
	Jul. 04, 2021shares
Options cancelled (in shares)	11
Stock Plan 2019 [Member]
Balance (in shares)	320
Authorized shares (in shares)	600
Options cancelled (in shares)	11
Balance (in shares)	1,159
Stock Plan 2019 [Member] | Restricted Stock Units (RSUs) [Member]
Granted (in shares)	(30)
Forfeited or expired (in shares)	19
Stock Plan 2019 [Member] | Performance Restricted Stock Units (PRSUs) [Member]
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	6 Months Ended	12 Months Ended
	Jul. 04, 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)	3 years 1 month 28 days	3 years 9 months
Forfeited or expired (in shares)	(11)
Weighted average price, forfeited or expired (in dollars per share)	$ 19.59
Balance, options (in shares)	110	121
Weighted average price balance (in dollars per share)	$ 29.31	$ 28.46
Aggregate intrinsic value	$ 0
Exercisable (in shares)	110
Weighted average price, exercisable (in dollars per share)	$ 29.31
Weighted average remaining term, exercisable (Year)	3 years 1 month 28 days
Aggregate intrinsic value, exercisable	$ 0
Vested and expected to vest (in shares)	110
Weighted average price, vested and expected to vest (in dollars per share)	$ 29.31
Weighted average remaining term, vested and expected to vest (Year)	3 years 1 month 28 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	6 Months Ended
	Jul. 04, 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	30
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	$ 5.11
Vested, number of shares (in shares) | shares	(458)
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 4.88
Forfeited, number of shares (in shares) | shares	(258)
Forfeited, weighted average grant date fair value (in dollars per share) | $ / shares	$ 4.98
Balance (in shares) | shares	114
Balance, weighted average grant date fair value (in dollars per share) | $ / shares	$ 5.46

Note 9 - Income Taxes (Details

Note 9 - Income Taxes (Details Textual) - USD ($)	3 Months Ended			6 Months Ended
	Jul. 04, 2021	Apr. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020	Jan. 03, 2021
Income Tax Expense (Benefit), Total	$ 5,000		$ (27,000)	$ 157,000	$ (9,000)
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		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020	Jun. 28, 2020
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 2,882,000	$ 2,196,000	$ 5,122,000		$ 4,354,000
JAPAN
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 917,000	$ 771,000	$ 1,600,000	$ 1,200,000
JAPAN | Geographic Concentration Risk [Member] | Revenue Benchmark [Member]
Concentration Risk, Percentage	32.00%	35.00%	32.00%	27.00%
UNITED STATES
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 562,000	$ 1.3	$ 1,800,000		$ 2,200,000
UNITED STATES | Geographic Concentration Risk [Member] | Revenue Benchmark [Member]
Concentration Risk, Percentage	19.00%	58.00%	35.00%		51.00%

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		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Revenue	$ 2,882	$ 2,196	$ 5,122	$ 4,354
New Products [Member]
Revenue	1,262	820	2,337	1,306
Mature Products [Member]
Revenue	$ 1,620	$ 1,376	$ 2,785	$ 3,048

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		6 Months Ended
		Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Total revenue		$ 2,882	$ 2,196	$ 5,122	$ 4,354
Asia Pacific [Member]
Total revenue	[1]	1,075	779	1,828	1,185
North America [Member]
Total revenue	[2]	565	1,282	1,824	2,234
Europe [Member]
Total revenue		$ 1,242	$ 135	$ 1,470	$ 935
[1]	Asia Pacific includes revenue from Japan of $917,000, or 32% of total revenue and $771,000 or 35% of total revenue for the quarters ended July 4, 2021 and June 28, 2020, respectively. For the six months ended July 4, 2021 and June 28,2020, revenue from Japan was $1.6 million, or 32% of total revenue, and $1.2 million, or 27% of total revenue,respectively.
[2]	North America includes revenue from the United States of $562,000, or 19% of total revenue, and $1.3 million, or 58% of total revenue, for the three months ended July 4, 2021 and June 28, 2020, respectively. For the six months ended July 4, 2021 and June 28, 2020 revenue from the United States was $1.8 million, or 35% of total revenue, and $2.2 million,or 51% 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		6 Months Ended		12 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020	Jan. 03, 2021
Distributor "A" [Member] | Accounts Receivable [Member]
Concentration risk percentage			11.00%
Distributor "A" [Member] | Revenue Benchmark [Member]
Concentration risk percentage	14.00%	25.00%	13.00%	31.00%
Distributor "C" [Member] | Accounts Receivable [Member]
Concentration risk percentage			10.00%
Distributor "C" [Member] | Revenue Benchmark [Member]
Concentration risk percentage			16.00%	17.00%
Distributor "E" [Member] | Accounts Receivable [Member]
Concentration risk percentage			22.00%
Distributor "E" [Member] | Revenue Benchmark [Member]
Concentration risk percentage	29.00%	29.00%	29.00%	21.00%
Customer P [Member] | Accounts Receivable [Member]
Concentration risk percentage					67.00%
Customer "B" [Member] | Revenue Benchmark [Member]
Concentration risk percentage		12.00%		13.00%
Customer Q [Member] | Accounts Receivable [Member]
Concentration risk percentage					10.00%
Customer "E" [Member] | Revenue Benchmark [Member]
Concentration risk percentage	35.00%		20.00%
Distributor "J" [Member] | Accounts Receivable [Member]
Concentration risk percentage			51.00%
Customer "F" [Member] | Revenue Benchmark [Member]
Concentration risk percentage	29.00%	29.00%	29.00%	21.00%
Customer "M" [Member] | Revenue Benchmark [Member]
Concentration risk percentage		12.00%

Note 11 - Commitments and Con_2

Note 11 - Commitments and Contingencies (Details Textual) - USD ($)	Jul. 04, 2021	Jan. 03, 2021
Wafer Purchase Commitment [Member]
Purchase Commitment, Remaining Minimum Amount Committed	$ 559,000	$ 60,000
Goods and Services [Member]
Purchase Obligation, Total	$ 945,000

Note 12 - Subsequent Events (De

Note 12 - Subsequent Events (Details Textual) - Subsequent Event [Member] - Heritage Bank of Commerce [Member] - Revolving Credit Facility [Member]	Aug. 16, 2021USD ($)
Minimum Cash Required for Covenant Related to Credit Facility	$ 3,000,000
Payments for Waiver and Amendment Fee	$ 5,000