QuickLogic (QUIK) 10-Q 8 Nov 19 2019 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 29, 2019	Nov. 01, 2019
Cover [Abstract]
Entity Registrant Name	QUICKLOGIC CORPORATION
Entity Central Index Key	0000882508
Current Fiscal Year End Date	--12-30
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Document Type	10-Q
Document Period End Date	Sep. 29, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		116,558,521
Trading Symbol	QUIK
Entity Shell Company	false
Entity File Number	000-22671
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
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Title of 12(b) Security	Common Stock, par value $.001 per share
Security Exchange Name	NASDAQ
Entity Incorporation, State or Country Code	DE
Document Quarterly Report	true
Document Transition Report	false

UNAUDITED CONDENSED CONSOLIDATE

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Sep. 29, 2019	Dec. 30, 2018
Current assets:
Cash and cash equivalents	$ 24,722,000	$ 26,363,000
Restricted cash	100,000	100,000
Accounts receivable, net of allowances for doubtful accounts of $0 and $0	1,259,000	2,209,000
Inventories	3,378,000	3,836,000
Other current assets	1,506,000	1,775,000
Total current assets	30,965,000	34,283,000
Property and equipment, net	1,033,000	1,449,000
Right of use assets	2,170,000
Intangible assets	1,045,000
Goodwill	282,000
Other assets	306,000	354,000
TOTAL ASSETS	35,801,000	36,086,000
Current liabilities:
Revolving line of credit	15,000,000	15,000,000
Trade payables	1,004,000	1,488,000
Accrued liabilities	1,474,000	1,903,000
Lease liabilities-current	662,000	316,000
Total current liabilities	18,140,000	18,707,000
Long-term liabilities:
Lease liabilities-non-current	1,423,000	108,000
Other long-term liabilities		16,000
Total liabilities	19,563,000	18,831,000
Commitments and contingencies (see Note 15)
Stockholders' equity:
Preferred stock, $0.001 par value; 10,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.001 par value; 200,000 authorized; 116,556 and 95,513 shares issued and outstanding as of September 29, 2019 and December 30, 2018, respectively	116,000	95,000
Additional paid-in capital	296,317,000	284,974,000
Accumulated deficit	(280,195,000)	(267,814,000)
Total stockholders' equity	16,238,000	17,255,000
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 35,801,000	$ 36,086,000

UNAUDITED CONDENSED CONSOLIDA_2

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 29, 2019	Dec. 30, 2018
Current Assets:
Allowance for doubtful accounts	$ 0	$ 0
Stockholders' Equity:
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	116,556,000	95,513,000
Common stock, shares outstanding	116,556,000	95,513,000

UNAUDITED CONDENSED CONSOLIDA_3

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018
Income Statement [Abstract]
Revenue	$ 2,158	$ 3,510	$ 7,439	$ 9,396
Cost of revenue	1,117	1,767	3,397	4,734
Gross profit	1,041	1,743	4,042	4,662
Operating expenses:
Research and development	3,139	2,461	9,596	7,526
Selling, general and administrative	2,095	2,509	6,881	7,680
Total operating expenses	5,234	4,970	16,477	15,206
Loss from operations	(4,193)	(3,227)	(12,435)	(10,544)
Interest expense	(63)	(21)	(270)	(77)
Interest income and other (expense), net	55	17	153	26
Loss before income taxes	(4,201)	(3,231)	(12,552)	(10,595)
Provision for (benefit from) income taxes	70	29	(171)	119
Net loss	$ (4,271)	$ (3,260)	$ (12,381)	$ (10,714)
Net loss per share:
Basic and diluted	$ (0.04)	$ (0.03)	$ (0.12)	$ (0.12)
Weighted average shares outstanding:
Basic and diluted	116,387	94,725	104,173	87,040

UNAUDITED CONDENSED CONSOLIDA_4

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 29, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net loss	$ (12,381)	$ (10,714)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	900	980
Stock-based compensation	2,490	1,427
Write-down of inventories	80	206
Write-off of equipment	2	5
Tax benefit from acquisition	(282)
Changes in operating assets and liabilities:
Accounts receivable	950	(301)
Inventories	378	(736)
Other assets	304	(59)
Trade payables	(492)	(232)
Accrued liabilities and deferred revenue	(683)	562
Other long-term liabilities	(16)	33
Net cash used in operating activities	(8,750)	(8,829)
Cash flows from investing activities:
Capital expenditures for property and equipment	(599)	(112)
Cash received from business acquisition	20
Net cash used in investing activities	(579)	(112)
Cash flows from financing activities:
Payment of finance lease obligations	(283)	(329)
Proceeds from line of credit	32,000	21,000
Payment of line of credit	(32,000)	(18,000)
Proceeds from issuance of common stock	9,439	15,859
Stock issuance costs	(1,181)	(1,638)
Taxes for net issuance of stock awards	(287)	(259)
Net cash provided by financing activities	7,688	16,633
Net (decrease)/increase in cash, cash equivalents and restricted cash	(1,641)	7,692
Cash, cash equivalents and restricted cash at beginning of period	26,463	16,527
Cash, cash equivalents and restricted cash at end of period	$ 24,822	$ 24,219

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings
Beginning balance at Dec. 31, 2017	$ 14,878	$ 80	$ 268,833	$ (254,035)
Beginning balance (in shares) at Dec. 31, 2017		80,536
Common stock issued under stock plans and employee stock purchase plan	(47)		(47)
Common Stock issued under stock plans and employee stock purchase plan, shares		91
Stock-based compensation	432		432
Net loss	(3,970)			(3,970)
Ending balance at Apr. 01, 2018	11,293	$ 80	269,218	(258,005)
Ending balance (in shares) at Apr. 01, 2018		80,627
Beginning balance at Dec. 31, 2017	14,878	$ 80	268,833	(254,035)
Beginning balance (in shares) at Dec. 31, 2017		80,536
Net loss	(10,714)
Ending balance at Sep. 30, 2018	19,551	$ 95	284,205	(264,749)
Ending balance (in shares) at Sep. 30, 2018		94,922
Beginning balance at Apr. 01, 2018	11,293	$ 80	269,218	(258,005)
Beginning balance (in shares) at Apr. 01, 2018		80,627
Common stock issued under stock plans and employee stock purchase plan	233		233
Common Stock issued under stock plans and employee stock purchase plan, shares		434
Common stock offering, net of issuance costs	13,903	$ 14	13,889
Common stock offering, net of issuance costs (in shares)		13,514
Stock-based compensation	479		479
Net loss	(3,484)			(3,484)
Ending balance at Jul. 01, 2018	22,424	$ 94	283,819	(261,489)
Ending balance (in shares) at Jul. 01, 2018		94,575
Common stock issued under stock plans and employee stock purchase plan	(129)	$ 1	(130)
Common Stock issued under stock plans and employee stock purchase plan, shares		347
Stock-based compensation	516		516
Net loss	(3,260)			(3,260)
Ending balance at Sep. 30, 2018	19,551	$ 95	284,205	(264,749)
Ending balance (in shares) at Sep. 30, 2018		94,922
Beginning balance at Dec. 30, 2018	17,255	$ 95	284,974	(267,814)
Beginning balance (in shares) at Dec. 30, 2018		95,513
Common stock issued under stock plans and employee stock purchase plan	740	$ 2	738
Common Stock issued under stock plans and employee stock purchase plan, shares		1,676
Stock-based compensation	951		951
Net loss	(3,476)			(3,476)
Ending balance at Mar. 31, 2019	15,470	$ 97	286,663	(271,290)
Ending balance (in shares) at Mar. 31, 2019		97,189
Beginning balance at Dec. 30, 2018	17,255	$ 95	284,974	(267,814)
Beginning balance (in shares) at Dec. 30, 2018		95,513
Net loss	(12,381)
Ending balance at Sep. 29, 2019	16,238	$ 116	296,317	(280,195)
Ending balance (in shares) at Sep. 29, 2019		116,556
Beginning balance at Mar. 31, 2019	15,470	$ 97	286,663	(271,290)
Beginning balance (in shares) at Mar. 31, 2019		97,189
Common stock issued under stock plans and employee stock purchase plan	210	$ 1	209
Common Stock issued under stock plans and employee stock purchase plan, shares		532
Common stock offering, net of issuance costs	8,025	$ 18	8,007
Common stock offering, net of issuance costs (in shares)		18,400
Stock-based compensation	791		791
Net loss	(4,634)			(4,634)
Ending balance at Jun. 30, 2019	19,862	$ 116	295,670	(275,924)
Ending balance (in shares) at Jun. 30, 2019		116,121
Common stock issued under stock plans and employee stock purchase plan	(94)		(94)
Common Stock issued under stock plans and employee stock purchase plan, shares		435
Common stock offering, net of issuance costs	(6)		(6)
Stock-based compensation	747		747
Net loss	(4,271)			(4,271)
Ending balance at Sep. 29, 2019	$ 16,238	$ 116	$ 296,317	$ (280,195)
Ending balance (in shares) at Sep. 29, 2019		116,556

The Company and Basis of Presen

The Company and Basis of Presentation	9 Months Ended
	Sep. 29, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
The Company and Basis of Presentation	Note 1 — The Company and Basis of Presentation QuickLogic Corporation, or QuickLogic or the Company, was founded in 1988 and reincorporated in Delaware in 1999. The Company enables Original Equipment Manufacturers, or OEMs to maximize battery life for highly differentiated, immersive user experiences with Smartphone, Wearable, Hearable, Tablet and Internet-of-Things, or IoT devices. QuickLogic delivers these benefits through industry leading ultra-low power customer programmable System on Chip, or SoC, semiconductor solutions, embedded software, and algorithm solutions for always-on voice and sensor processing, and enhanced visual experiences. The Company is a fabless semiconductor provider of comprehensive, flexible sensor processing solutions, ultra-low power display bridges, and ultra-low power Field Programmable Gate Arrays, or FPGAs. The Company’s wholly owned subsidiary, SensiML Corporation, or SensiML, provides Analytics Toolkit, which is used in many of the applications where the Company’s ArcticPro™, eFPGA intellectual property, or IP plays a critical role. SensiML Analytics toolkit is an end-to-end software suite that provides OEMs a straightforward process for developing pattern matching sensor algorithms using machine learning technology that are optimized for ultra-low power consumption. The 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, or 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 condensed consolidated financial statements be read in conjunction with the Company's Form 10-K for the year ended December 30, 2018, which was filed with the Securities and Exchange Commission, or SEC, on March 15, 2019, as amended. Operating results for the three and nine months ended September 29, 2019 are not necessarily indicative of the results that may be expected for the full year. QuickLogic's fiscal year ends on the Sunday closest to December 31 and each fiscal quarter ends on the Sunday closest to the end of each calendar quarter. QuickLogic's third fiscal quarters for 2019 and for 2018 ended on September 29, 2019 and September 30, 2018, respectively. Liquidity The Company has financed its operations and capital investments through sales of common stock, finance leases, bank lines of credit and cash flows from operations. As of September 29, 2019, the Company's principal sources of liquidity consisted of cash and cash equivalents and restricted cash of $24.8 million, including $15.0 million drawn down from its revolving line of credit, or Revolving Facility with Heritage Bank of Commerce, or Heritage Bank. On November 6, 2019 the Company entered into a First Amendment to the Revolving Facility with Heritage Bank to extend the maturity date for one year through September 28, 2021. Under this amendment the Revolving Facility advances shall bear interest, on the outstanding daily balance thereof, at a rate per annum equal to the greater of (i) one half of one percentage point (0.50%) above the Prime Rate, or (ii) five and one half of one percentage points (5.50%). On June 21, 2019, the Company closed its underwritten public offering of 18.4 million shares of common stock, $0.001 par value per share at a price of $0.50 per share, which included 2.4 million shares issued pursuant to the underwriters’ full exercise of their over-allotment option. The Company received net proceeds of approximately $8.0 million, after deducting underwriting commissions and other offering-related expenses. 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; market acceptance of existing and new products including solutions based on its ArcticLink ® ® Over the longer term, the Company anticipates that sales generated from its new product offerings, existing cash and cash equivalents, together with financial resources from its Revolving Facility with the Heritage Bank, assuming renewal of the Revolving Facility or the Company entering into a new debt agreement with an alternative lender prior to the expiration of the revolving line of credit in September 2021, 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 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 expense, net in the unaudited condensed consolidated statements of operations. Uses of Estimates The preparation of these consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosures of contingent assets and liabilities and the reported amounts of revenue and expenses during the period. Actual results could differ 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 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 require significant judgment. Judgment is required to determine the Stand-alone Selling Price, or 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 directly observable, such as when the Company does not sell the product or service separately, it determines the SSP using information that may include market conditions and other observable inputs. The Company typically has more than one SSP for individual products and services due to the stratification of those products and services by customers. In these instances, the Company may use information such as the size of the customer, customer tier, type of the technology used, customer demographics, geographic region and other factors in determining the SSP. 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 require collateral. See Note 14 for information regarding concentrations associated with accounts receivable.

Significant Accounting Policies

Significant Accounting Policies	9 Months Ended
	Sep. 29, 2019
Accounting Policies [Abstract]
Significant Accounting Policies	Note 2 — Significant Accounting Policies During the nine-month period ended September 29, 2019, there were no changes in the Company's significant accounting policies from its disclosures in the Annual Report on Form 10-K for the year ended December 30, 2018, except for the new accounting standards adopted during the nine months of 2019. For a discussion of the significant accounting policies, please see the Annual Report on Form 10-K for the fiscal year ended December 30, 2018, filed with the SEC on March 15, 2019, as amended. For a discussion of the new accounting standards adopted during the nine months of 2019, see “New Accounting Pronouncements” and “Leases” below. Revenue Recognition The Company applies Accounting Standards Codification, or ASC, Topic 606, Revenue from Contracts with Customers , to recognize revenue. The guidance states that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Under the new standard revenue is recognized upon transfer of control of promised products or services to customers in an amount that reflects the consideration it expects to receive in exchange for those products or services. The Company determines revenue recognition through the following steps: • Identification of the contract, or contracts, with a customer; • Identification of the performance obligations in the contract; • Determination of the transaction price; • Allocation of the transaction price to the performance obligations in the contract; and • Recognition of revenue when, or as, a performance obligation is satisfied. As part of its assessment of each contract, the Company evaluates certain factors including the customer’s ability to pay, or credit risk. For each contract, the Company considers the promise to transfer products, each of which is distinct, to be the identified performance obligations. In determining the transaction price, the price stated on the purchase order is typically fixed and represents the net consideration to which the Company expects to be entitled, and therefore there is no variable consideration. As the Company’s standard payment terms are less than one year, the Company has elected, as a practical expedient, to not assess whether a contract has a significant financing component. The Company allocates the transaction price to each distinct product based on its relative stand-alone selling price. The product price as specified on the purchase order is considered the stand-alone selling price as it is an observable source that depicts the price as if sold to a similar customer in similar circumstances. Leases The Company adopted Accounting Standards Update, or ASU, No. 2016-02, Leases (Topic 842) . Under Topic 842, all significant lease arrangements are generally recognized at lease commencement. Operating lease right-of-use, or ROU, assets and lease liabilities are recognized at the commencement date. A ROU asset and corresponding lease liability is not recorded for leases with an initial term of 12 months or less (short term leases) and the Company recognizes lease expense for these leases as incurred over the lease term. ROU assets represent the Company’s right to use an underlying asset during the reasonably certain lease terms and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. The Company’s lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. The Company primarily uses its incremental borrowing rate, based on the information available at commencement date, in determining the present value of lease payments. The operating lease ROU asset also includes any lease payments related to initial direct cost and prepayments and excludes lease incentives. Lease expense is recognized on a straight-line basis over the lease term. The Company has lease agreements with lease and non-lease components, which are generally accounted for separately. In accordance with ASU No. 2016-02, the Company recognized right-of-use assets of approximately $975,000 and lease liabilities of approximately $939,000 on the Company’s Consolidated Balance Sheet as of March 31, 2019, with no material impact to its Consolidated Statements of operations. As of September 29, 2019, the Company’s right-of-use assets was approximately $2.2 million and lease liability was approximately $2.1 million as presented on the Company’s Consolidated Balance Sheet. See Note 8 to the Unaudited Consolidated Financial Statements for more details. Business Combinations The Company recognizes assets acquired (including goodwill and identifiable intangible assets) and liabilities assumed at fair value on the acquisition date. Subsequent changes to the fair value of such assets acquired and liabilities assumed are recognized in earnings, after the expiration of the measurement period, a period not to exceed 12 months from the acquisition date. Acquisition-related expenses and acquisition-related restructuring costs are recognized in earnings in the period in which they are incurred. Goodwill and Intangible Assets Goodwill represents the excess fair value of consideration transferred over the fair value of net assets acquired in business combinations. The carrying value of goodwill and indefinite lived intangible assets are not amortized, but are annually tested for impairment and more often if there is an indicator of impairment. Intangible assets with finite useful lives are amortized on a straight-line basis over the periods benefited. The Company reviews the recoverability of its long-lived assets when events or changes in circumstances occur that indicate that the carrying value of the asset or asset group may not be recoverable. The assessment of possible impairment is based on the Company's ability to recover the carrying value of the asset or asset group from the expected future pre-tax cash flows (undiscounted and without interest charges) of the related operations. If these cash flows are less than the carrying value of such asset, an impairment loss is recognized for the difference between estimated fair value and carrying value. The measurement of impairment requires management to estimate future cash flows and the fair value of long-lived assets. Restricted cash Restricted cash represents amounts pledged as cash security related to the Silicon Valley Bank credit cards. New Accounting Pronouncements Recently adopted accounting pronouncements: In January 2017, the FASB issued Accounting Standards Update ASU No. 2017-04, Simplifying the Test for Goodwill Impairment G The guidance will be applied prospectively, and is effective for annual and interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted for any impairment tests performed on testing dates after January 1, 2017. st In February 2018, FASB issued ASU No. 2018-02, Income Statement - Reporting Comprehensive Income. In March 2018, FASB issued ASU No. 2018-05, Income Taxes (Topic 740) In June 2018, the FASB issued ASU No. 2018-07 , Improvements to Nonemployee Share-Based Payment Accounting . Currently, share-based payments to nonemployees are accounted for under Subtopic 505-50, which significantly differs from the guidance for share-based payments to employees under Topic 718. This ASU supersedes Subtopic 505-50 by expanding the scope of Topic 718 to include nonemployee awards and generally aligning the accounting for nonemployee awards with the accounting for employee awards. The Company adopted this ASU on December 31, 2018 with no material impact on its results of operations, financial position and cash flows. Recently issued accounting pronouncements not yet adopted: In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement In August 2018, the FASB issued ASU No. 2018-15, Intangibles - Goodwill and Other – Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementations Costs Incurred in a Cloud Computing Arrangement That is a Service Contract. For all other entities, the effective date is fiscal years beginning after December 15, 2021.

Net Loss Per Share

Net Loss Per Share	9 Months Ended
	Sep. 29, 2019
Earnings Per Share [Abstract]
Net Loss Per Share	Note 3 — Net Loss Per Share 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 and nine months ended September 29, 2019 and September 30, 2018, 7.8 million and 7.0 million of common shares associated with equity awards and the estimated number of shares to be purchased under the current offering period of the 2009 Employee Stock Purchase Plan were outstanding, respectively. These shares were not included in the computation of diluted net loss per share as they were considered anti-dilutive due to the net losses the Company experienced during these periods. Warrants to purchase up to 5.4 million shares were issued in connection with May 29, 2018 stock offering were also not included in the diluted loss per share calculation of the three and nine months ended September 29, 2019 as they were also considered anti-dilutive due to the net loss the Company experienced during these periods.

Balance Sheet Components

Balance Sheet Components	9 Months Ended
	Sep. 29, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Balance Sheet Components	Note 4 — Balance Sheet Components The following table provides details relating to certain balance sheet line items as of September 29, 2019, and December 30, 2018 (in thousands): September 29, 2019 December 30, 2018 Inventories: Raw materials $ 191 $ — Work-in-process 2,535 3,120 Finished goods 652 716 $ 3,378 $ 3,836 Property and equipment: Equipment $ 10,703 $ 10,607 Software 1,790 2,788 Furniture and fixtures 35 42 Leasehold improvements 474 712 13,002 14,149 Less: Accumulated depreciation and amortization (11,969 ) (12,700 ) $ 1,033 $ 1,449

Business Acquisition

Business Acquisition	9 Months Ended
	Sep. 29, 2019
Business Combinations [Abstract]
Business Acquisition	Note 5 — Business Acquisition SensiML Acquisition On January 3, 2019, the Company entered into a stock purchase agreement, or the Stock Purchase Agreement, with SensiML for the purchase of all of its issued and outstanding common stock in exchange for the Company’s common stock, or the SensiML Acquisition. SensiML has a software toolkit enabling IoT developers to quickly and easily create smart devices, transforming rich sensors into actionable event detectors. SensiML’s Analytics Toolkit is an end-to-end software suite that provides OEMs a straightforward process for developing pattern matching sensor algorithms using machine learning technology that are optimized for ultra-low power consumption. The SensiML Analytics Toolkit enables OEMs to quickly and easily leverage the power of local AI in edge, endpoint and wearable designs without the need for significant Data Science or Firmware Engineering resources. The results of operations for the Company for the three and nine months ended September 29, 2019 include operating activity for SensiML since its acquisition date of January 3 September 29, 2019 September 29, 2019 September 29, 2019 Purchase Price Allocation Under the purchase accounting method, the total preliminary purchase price was allocated to SensiML’s net tangible and intangible assets based upon their estimated fair values as of the acquisition date. The excess purchase price over the value of the net tangible and identified intangible assets was recorded as goodwill. During the measurement period, which can be no more than one year from the date of acquisition, the Company expects to continue to obtain information to determine the final fair value of the net assets acquired at the acquisition date during the measurement period. Assets acquired and liabilities assumed are recorded based on valuations derived from estimated fair value assessments and assumptions used by the Company. Thus, the provisional measurements of fair value discussed above are subject to change. The Company expects to finalize the valuation as soon as practicable, but not later than one year from the acquisition date. While the Company believes that its estimates and assumptions underlying the valuations are reasonable, different estimates and assumptions could result in different valuations assigned to the individual assets acquired and liabilities assumed, and the resulting amount of goodwill. Intangible assets associated with the acquisition is primarily attributable to the future technology, market presence and knowledgeable and experienced workforce. The fair value assigned to identifiable intangible assets acquired was determined using the income approach taking into account the Company’s consideration of a number of inputs, including an independent third-party analysis that was based upon estimates and assumptions provided by the Company. These estimates and assumptions were determined through established and generally accepted valuation techniques. The estimated fair value of the tangible and intangible assets acquired was allocated at SensiML’s acquisition date. Goodwill is not amortized for financial accounting purposes and is not expected to be deductible for income tax purposes. The Stock Purchase Agreement contains customary representations and warranties between the Company and SensiML, who agreed to indemnify each other for certain breaches of representations, warranties, covenants and other specified matters. Approximately $200,000 in value of the Company’s common stock of the purchase price was placed in escrow as security for post-closing working capital adjustments. Escrow period ends at the close of the business day on January 2, 2020.

Intangible Assets

Intangible Assets	9 Months Ended
	Sep. 29, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Intangible Assets	Note 6 — Intangible Assets The following table provides the details of the carrying value of intangible assets recorded from the acquisition of SensiML during the nine month period ended September 29, 2019 (in thousands): September 29, 2019 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Developed technology $ 959 $ (72 ) $ 887 Customer relationships 81 (30 ) 51 Trade names and trade marks 116 (9 ) 107 Total acquired identifiable intangible assets $ 1,156 $ (111 ) $ 1,045 The following table provides the details of future annual amortization of intangible assets, based upon the current useful lives as of September 29, 2019 Amount Annual Fiscal Years 2019 (remaining period) $ 38 2020 148 2021 107 2022 107 2023 107 Thereafter 538 Total $ 1,045

Debt Obligations

Debt Obligations	9 Months Ended
	Sep. 29, 2019
Debt Disclosure [Abstract]
Debt Obligations	Note 7 — Debt Obligations Revolving Line of credit On September 28, 2018, the Company entered into a Loan and Security Agreement or Loan Agreement with Heritage Bank. The Loan Agreement provided for, among other things, the Revolving Facility with aggregate commitments of $9,000,000. Pursuant to the Loan Agreement, the Revolving Facility will bear interest at a rate equal to half percentage point (0.50%) above the variable rate of interest, per annum, that appears in The Wall Street Journal from time to time, whether or not such announced rate is the lowest rate available from Heritage Bank. On December 21, 2018, the Company entered into an Amended and Restated Loan and Security Agreement, or the Amended and Restated Loan Agreement with Heritage Bank to replace in its entirety the Loan Agreement. The Amended and Restated Loan Agreement increased the Revolving Facility from $9,000,000 to $15,000,000. The Amended and Restated Loan Agreement requires the Company to maintain at least $3,000,000 in unrestricted cash at Heritage Bank. The Company was in compliance with all loan covenants under the Amended and Restated Loan Agreement as of the end of the current reporting period. On November 6, 2019 the Company entered into a First Amendment to the Amended and Restated Loan Agreement to extend the maturity date of the Revolving Facility for one year through September 28, 2021. Under this amendment, the Revolving Facility advances shall bear interest, on the outstanding daily balance thereof, at a rate per annum equal to the greater of (i) one half of one percentage point (0.50%) above the Prime Rate, or (ii) five and one half of one percentage points (5.50%). For the three and nine months ended September 29, 2019, the Revolving Facility bear interest at a rate equal to half percentage point (0.50%) above the variable rate of interest, per annum, that appears in The Wall Street Journal from time to time, whether or not such announced rate is the lowest rate available from Heritage Bank. As of September 29, 2019 and December 30, 2018, the Company had $15.0 million of revolving debt outstanding with an interest rates of 5.5% and 6.0% per annum, respectively. On October 1, 2019, the Company repaid $9.0 million of its outstanding debt under the Revolving Facility with Heritage Bank.

Leases

Leases	9 Months Ended
	Sep. 29, 2019
Leases [Abstract]
Leases	Note 8 — Leases The Company entered into operating leases for office space for its headquarter, domestic and foreign subsidiaries and sales offices. Finance leases are primarily engineering design software. Operating leases generally have lease terms of 1 year to 5 years. Finance leases are generally 2 years to 3 years. During the nine months ended September 29, 2019, the Company recognized right-of-use assets of approximately $2.2 million and lease liability of approximately $2.1 million relating to the operating leases signed for the premises of its headquarters in San Jose, its San Diego office and its subsidiary SensiML in Oregon. The Company exited Sunnyvale premises lease in July 2019. The following table provides the activity related to operating and finance leases (in thousands): Three Nine Months Ended September 29, 2019 September 29, 2019 Rent expenses relating to operating leases: Fixed $ 186 $ 596 Variable — — Short term 6 33 Total 192 629 Finance lease amortization costs: Amortization of ROU asset 91 273 Interest 3 14 Total $ 94 $ 287 The following table provides the details of supplemental cash flow information (in thousands): Nine Months Ended September 29, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used for operating leases $ 633 Operating cash flows used for finance leases 20 Financing cash flows used for financing leases 283 Total $ 936 Right-of-use assets obtained in exchange for obligations: Operating leases $ 1,920 Finance leases 250 Total $ 2,170 The following table provides the details of right-of-use assets and lease liabilities as of September 29, 2019 (in thousands): September 29, 2019 Right-of-use assets: Operating leases $ 1,920 Finance leases 250 Total $ 2,170 Lease liabilities: Operating leases 1,944 Finance leases 141 Total $ 2,085 The following table provided the details of future lease payments for operating and finance leases as of September 29, 2019 (in thousands): Annual Fiscal Years Operating Finance 2019 (Remaining period) $ 157 $ 86 2020 611 63 2021 494 — 2022 409 — 2023 421 — Thereafter 106 — Total lease payments 2,198 149 Less: Interest (254 ) (8 ) Present value of lease liabilities $ 1,944 $ 141 The following table provides the details of lease terms and discount rates as of September 29, 2019: September 29, 2019 Right-of-use assets: Weighted-average remaining lease term (years) Operating leases 4.00 Finance leases 0.44 Weighted-average discount rates: Operating leases 5.99 % Finance leases 6.89 %

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 29, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	Pursuant to the accounting guidance for fair value measurements and its subsequent updates, fair value is defined as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities required or permitted to be recorded at fair value, the Company considers the principal or most advantageous market and assumptions that market participants would use when pricing the asset or liability. Our cash and cash equivalents include money market account balance of $23.9 million and money market funds of $262,000 as of September 29, 2019 and December 30, 2018, respectively. Investment in money market funds was classified within level 1 of the fair value hierarchy because they were valued using quoted market prices for identical assets. Fair value of the money market account balance with Heritage Bank equals to book value.

Stockholders' Equity

Stockholders' Equity	9 Months Ended
	Sep. 29, 2019
Equity [Abstract]
Stockholders' Equity	Note 10 — Stockholders' Equity Common Stock and Preferred Stock As of September 29, 2019, the Company was authorized to issue 200 million shares of common stock and had 10 million shares of authorized but unissued shares of preferred stock. Without any further vote or action by the Company's stockholders, the Board of Directors has the authority to determine the powers, preferences, rights, qualifications, limitations or restrictions granted to or imposed upon any wholly unissued shares of undesignated preferred stock. Issuance of Common Stock On June 21, 2019, the Company closed an underwritten public offering of 18.4 million shares of common stock, $0.001 par value per share at a price of $ 0.50 per share, which included 2.4 million shares issued pursuant to the underwriters’ full exercise of their over-allotment option. The Company received net proceeds from the offering of approximately $8.0 million, net of underwriter’s commission and other offering expenses paid as of the third quarter of 2019. On March 15, 2019, the Company filed a shelf registration statement on Form S-3, under which the Company may, from time to time, sell securities in one or more offerings up to a total amount of $75 million. The Company’s shelf registration statement was declared effective on March 29, 2019. In May, 2018, the company issued an aggregated of 13.5 million shares of common stock, and warrants to purchase up to an aggregate of 5.4 million shares of common stock in a confidentially marketed underwritten offering. The common stock and warrants were issued in units, or the Units, with each Unit consisting of (i) one share of common stock and (ii) a warrant to purchase 0.40 of a share of common stock, at a price of $1.15 per Unit. The Company received total net proceeds from the offering of $13.9 million. The warrants are exercisable any time for a period of 60 months from the date of issuance on May 29, 2018, and are exercisable at a price of $1.38 per share. The Company allocated the proceeds between the common stock and the warrants based on the relative fair value of each on the date of issuance. The estimated grant date fair value was $0.57 per warrant and was calculated based on the following assumptions used in the Black-Scholes model: expected term of 5 years, risk-free interest rate of 2.58%, expected volatility of 52.75% and expected dividend of zero.

Employee Stock Plans

Employee Stock Plans	9 Months Ended
	Sep. 29, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Employee Stock Plans	2019 Stock Plan On April 24, 2019, the Company’s Board of Directors and shareholders approved the 2019 Stock Plan, or 2019 Plan, to replace the 2009 stock Plan, or the 2009 Plan. Under the 2019 Plan, 5,000,000 shares of common stock are available for grants, plus any shares subject to any outstanding options or other awards granted under the Company’s 2009 Plan that expire, are forfeited, cancelled, returned to the Company for failure to satisfy vesting requirements, settled for cash or otherwise terminated without payment being made thereunder. The remaining balance of available shares under the 2009 Plan of 4,186,979 were cancelled as of April 24, 2019. As of September 29, 2019, approximately 4.0 million shares of the Company’s common stock were reserved for issuance under the 2019 Plan. Employee Stock Purchase Plan The 2009 Employee Stock Purchase Plan, or the 2009 ESPP, was adopted in March 2009. The 2009 ESPP was amended by the Board of Directors in January 2015 and in February 2017, and was approved by the Company's stockholders on April 23, 2015 and April 26, 2017, to reserve an additional 1.0 million and 1.5 million shares of common stock, respectively, for issuance under the 2009 ESPP. As of September 29, 2019, approximately 873,000 shares of the Company’s common stock were reserved for issuance under the 2009 ESPP. On May 6, 2019, the Board of Directors approved the extension of the term of the 2009 ESPP to March 5, 2029, which also requires the stockholders’ ratification within 12 months of the approval by the Board of Directors. The Company plans to submit the extension of the term of the 2009 ESPP for our stockholders to ratify in the next annual general meeting, if not sooner.

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 29, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	Note 12 — Stock-Based Compensation Stock-based compensation expense included in the Company's consolidated financial statements for the three and nine months ended September 29, 2019 and September 30, 2018 was as follows (in thousands): Three Months Ended Nine Months Ended September 29, 2019 September 30, 2018 September 29, 2019 September 30, 2018 Cost of revenue $ 15 $ 30 $ 59 $ 99 Research and development 521 220 1,708 610 Selling, general and administrative 212 266 723 718 Total costs and expenses $ 748 $ 516 $ 2,490 $ 1,427 No stock-based compensation was capitalized during any period presented above. No stock options were granted during the three and nine-month periods ended September 29, 2019 and September 30, 2018. Stock-Based Compensation Award Activity The following table summarizes the activity in the shares available for grant under the 2019 Plan and 2009 Plan during the nine months ended September 29, 2019 (in thousands): Shares Available for Grants 2019 Plan 2009 Plan Balance at December 30, 2018 — 6,760 Authorized 5,000 — RSUs granted (1,261 ) (3,355 ) RSUs forfeited or expired 198 762 Options forfeited 15 20 Plan shares expired — (4,187 ) Balance at September 29, 2019 3,952 — Stock Options The following table summarizes stock options outstanding and stock option activity under the 2009 Plan and the 2019 Plan, and the related weighted average exercise price, for the nine months ended September 29, 2019: Number of Shares Weighted Average Exercise Price Weighted Average Remaining Term Aggregate Intrinsic Value (in thousands) (in years) (in thousands) Balance outstanding at December 30, 2018 3,201 $ 2.18 Forfeited or expired (580 ) 1.70 Exercised (4 ) 0.78 Balance outstanding at September 29, 2019 2,617 $ 2.29 3.70 $ — Exercisable at September 29, 2019 2,433 $ 2.40 3.46 $ — Vested and expected to vest at September 29, 2019 2,603 $ 2.30 3.69 $ — The aggregate intrinsic value in the table above represents the total pretax intrinsic value, based on the Company's closing stock price of $0.35 as of September 29, 2019, which would have been received by the option holders had all option holders exercised their options as of that date. The total intrinsic value of options exercised during the three months ended September 29, 2019 and September 30, 2018 was approximately $0 and $5,000, respectively. The total intrinsic value of options exercised during the nine months ended September 29, 2019 and September 30, 2018 was approximately $0 as the stock price was lower than exercise price and $5,000, respectively. Total cash received from employees as a result of employee stock option exercises during the nine months ended September 29, 2019 and September 30, 2018 was approximately $3,600 and $5,000, respectively. The Company settles employee stock option exercises with newly issued common shares. In connection with these exercises, there was no tax benefit realized by the Company due to the Company's current loss position. Total stock-based compensation related to stock options was approximately $24,000 and $30,000 for the three months ended September 29, 2019 and September 30, 2018, respectively, and approximately $73,000 and $102,000 for the nine months ended September 29, 2019 and September 30, 2018, respectively. Restricted Stock Units The Company grants restricted stock units or RSUs, to employees and directors with various vesting terms. RSUs entitle the holder to receive, at no cost, one common share for each RSU as it vests. In general, the Company's policy is to withhold shares in settlement of employee tax withholding obligations upon the vesting of RSUs. The stock-based compensation related to RSUs was approximately $724,000 and $435,000 for the three months ended and approximately $2.4 million and $1.2 million for nine months ended September 29, 2019 and September 30, 2018, respectively. As of September 29, 2019 and September 30, 2018, there was approximately $2.7 million and $2.1 million, respectively, in unrecognized compensation expense related to RSUs. The remaining unrecognized stock-based compensation expense is expected to be recorded over a weighted average period of 1.7 years. A summary of activity for the Company's RSUs for the nine months ended September 29, 2019 is as follows: RSUs & PRSUs Outstanding Number of Shares Weighted Average Grant Date Fair Value (in thousands) Nonvested at December 30, 2018 2,570 $ 1.23 Granted 4,615 0.81 Vested (1,552 ) 0.64 Forfeited (415 ) — Nonvested at September 29, 2019 5,218 $ 1.10 Employee Stock Purchase Plan As of September 29, 2019, 873,000 shares remained available for issuance under the 2009 ESPP. For the three months ended September 29, 2019 and September 30, 2018, the Company recorded stock-based compensation expense related to the 2009 ESPP of approximately $0 and $51,000, respectively. For the nine months ended September 29, 2019 and September 30, 2018, the Company recorded stock-based compensation expense related to the 2009 ESPP of approximately $60,000 and $168,000, respectively. The weighted average estimated fair value, as defined by the amended authoritative guidance, of rights issued pursuant to the Company's 2009 ESPP during the third quarter ended September 29, 2019 and September 30, 2018, was $0 and $0.47, respectively, per right, respectively. The fair value of rights issued pursuant to the Company's 2009 ESPP was estimated on the commencement date of each offering period using the following weighted average assumptions: Three Months Ended Nine Months Ended September 29, 2019 September 30, 2018 September 29, 2019 September 30, 2018 Expected term (months) — 6.00 6.00 6.00 Risk-free interest rate — 2.09 % 2.40 % 2.09 % Volatility — 44.76 % 53.77 % 44.76 % Dividend yield — — — — As of September 29, 2019, there was no unrecognized stock-based compensation expense relating to the Company's 2009 ESPP. ESPP grants were suspended until the extension of the term of 2009 ESPP is ratified by the stockholders in the annual general meeting to be held in 2020.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 29, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Note 13 — Income Taxes The Company recorded a net income tax expense of approximately $70,000 and $29,000 for the three months ended September 29, 2019 and September 30, 2018, respectively. For the nine months ended September 29, 2019 and September 30, 2018 the Company recorded a net income tax benefit of approximately $171,000 and tax expense of $119,000 respectively. A majority of the income tax expense for the third quarters of 2019 and 2018 and nine months ended September 29, 2019 and September 30, 2018 relates to the Company's foreign subsidiaries, which are cost-plus entities. Income tax benefit for the nine months ended September 29, 2019 relates to the deferred tax benefit arising from Intangible assets acquired from the acquisition of SensiML, which was offset by the income taxes from the Company's foreign subsidiaries. The Company believes it is more likely than not that federal and state net deferred tax assets will not be fully realized. In assessing the realizability of deferred tax assets, the Company’s management considers whether it is more likely than not that some portion or all of our deferred tax assets will be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. A valuation allowance is recorded for loss carry forwards and other deferred tax assets where it is more likely than not that such deferred tax assets will not be realized. Accordingly, the Company continues to maintain a valuation allowance against all of U.S. and certain foreign net deferred tax assets as of September 29, 2019. The Company continues to maintain a full valuation allowance against net federal, state and certain foreign deferred tax assets until there is sufficient evidence to support recoverability of the Company’s deferred tax assets. The Company had no unrecognized tax benefits as of September 29, 2019 and December 30, 2018, which would affect the Company's effective tax rate. The Company does not anticipate any material changes to its unrecognized tax benefits during the next 12 months. 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 forward remain effectively open to examination due to the carryover of unused net operating losses and tax credits. Under the Tax Reform Act of 1986, the amount of and the benefit from net operating loss carryforwards and credit carryforwards may be impaired or limited in certain circumstances. Events which may restrict utilization of a company's net operating loss and credit carryforwards include, but are not limited to, certain ownership change limitations as defined in Internal Revenue Code Section 382 and similar state provisions. In the event the Company has had a change of ownership, utilization of carryforwards could be restricted to an annual limitation. The annual limitation may result in the expiration of net operating loss carryforwards and credit carryforwards before utilization. The Company has not undertaken a study to determine if its net operating losses are limited. In the event the Company previously experienced an ownership change, or should experience an ownership change in the future, the amount of net operating losses and research and development credit carryovers available in any taxable year could be limited and may expire unutilized.

Information Concerning Product

Information Concerning Product Lines, Geographic Information and Revenue Concentration	9 Months Ended
	Sep. 29, 2019
Segment Reporting [Abstract]
Information Concerning Product Lines, Geographic Information and Revenue Concentration	Note 14 — Information Concerning Product Lines, Geographic Information and Revenue Concentration 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 September 29, 2019 September 30, 2018 September 29, 2019 September 30, 2018 Revenue by product line (1) New products $ 1,015 $ 1,523 $ 2,413 $ 4,404 Mature products 1,143 1,987 5,026 4,992 Total revenue $ 2,158 $ 3,510 $ 7,439 $ 9,396 (1) For all periods presented: New products include all products manufactured on 180 nanometer or smaller semiconductor processes, eFPGA IP license, Quick AI and Software revenues. Mature products include all products produced on semiconductor processes larger than 180 nanometer. The following is a breakdown of revenue by shipment destination (in thousands): Three Months Ended Nine Months Ended September 29, 2019 September 30, 2018 September 29, 2019 September 30, 2018 Revenue by geography: Asia Pacific (1) $ 528 $ 1,737 $ 2,496 $ 4,030 North America (2) 1,518 1,370 3,747 4,409 Europe 112 403 1,196 957 Total revenue $ 2,158 $ 3,510 $ 7,439 $ 9,396 (1) (2) The following distributors and customers accounted for 10% or more of the Company's revenue for the periods presented: Three Months Ended Nine Months Ended September 29, 2019 September 30, 2018 September 29, 2019 September 30, 2018 Distributor "A" 55 % 29 % 43 % 33 % Distributor "C" * * 10 % * Distributor "E" 11 % * * * Distributor "G" * 11 % 12 % * Distributor "I" * 13 % * * Customer "G" * 17 % * 12 % Customer "B" 17 % 12 % 14 % 12 % Customer "F" 11 % * * * Customer "I" * 10 % 11 % * Customer "J" 10 % * * 12 % Customer "K" * 13 % * * Customer "N" 14 % * * * The following distributors and customers accounted for 10% or more of the Company's accounts receivable as of the dates presented: September 29, 2019 December 30, 2018 Distributor "A" 42 % 35 % Distributor "E" 18 % * Distributor "G" * 10 % Distributor "J" 20 % * Customer "M" * 23 % _______________ * Represents less than 10% of revenue and accounts receivable as of the date presented. As of September 29, 2019, 11% of the Company's long-lived assets, including property and equipment and other assets, were located outside the United States.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 29, 2019
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 15 — Commitments and Contingencies 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 forecasted wafer volume. As of September 29, 2019, and December 30, 2018, the Company had $74,000 and $22,000, respectively, of outstanding commitments for the purchase of wafer and finished goods inventory. The Company has obligations with certain suppliers for the purchase of other goods and services entered into in the ordinary course of business. As of September 29, 2019, total outstanding purchase obligations for other goods and services were $795,000, all of which were due within the next twelve months.

Litigation

Litigation	9 Months Ended
	Sep. 29, 2019
Commitments And Contingencies Disclosure [Abstract]
Litigation	Note 16 — Litigation From time to time, the Company may become involved in legal actions arising in the ordinary course of business including, but not limited to, intellectual property infringement and collection matters. Absolute assurance cannot be given that any such third party assertions will be resolved without costly litigation; in a manner that is not adverse to the Company’s financial position, results of operations or cash flows; or without requiring royalty or other payments which may adversely impact gross profit. As of September 29, 2019, the Company was not involved in any litigation.

The Company and Basis of Pres_2

The Company and Basis of Presentation (Policies)	9 Months Ended
	Sep. 29, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Fiscal period	QuickLogic's fiscal year ends on the Sunday closest to December 31 and each fiscal quarter ends on the Sunday closest to the end of each calendar quarter. QuickLogic's third fiscal quarters for 2019 and for 2018 ended on September 29, 2019 and September 30, 2018, respectively.
Liquidity	Liquidity The Company has financed its operations and capital investments through sales of common stock, finance leases, bank lines of credit and cash flows from operations. As of September 29, 2019, the Company's principal sources of liquidity consisted of cash and cash equivalents and restricted cash of $24.8 million, including $15.0 million drawn down from its revolving line of credit, or Revolving Facility with Heritage Bank of Commerce, or Heritage Bank. On November 6, 2019 the Company entered into a First Amendment to the Revolving Facility with Heritage Bank to extend the maturity date for one year through September 28, 2021. Under this amendment the Revolving Facility advances shall bear interest, on the outstanding daily balance thereof, at a rate per annum equal to the greater of (i) one half of one percentage point (0.50%) above the Prime Rate, or (ii) five and one half of one percentage points (5.50%). On June 21, 2019, the Company closed its underwritten public offering of 18.4 million shares of common stock, $0.001 par value per share at a price of $0.50 per share, which included 2.4 million shares issued pursuant to the underwriters’ full exercise of their over-allotment option. The Company received net proceeds of approximately $8.0 million, after deducting underwriting commissions and other offering-related expenses. 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; market acceptance of existing and new products including solutions based on its ArcticLink ® ® Over the longer term, the Company anticipates that sales generated from its new product offerings, existing cash and cash equivalents, together with financial resources from its Revolving Facility with the Heritage Bank, assuming renewal of the Revolving Facility or the Company entering into a new debt agreement with an alternative lender prior to the expiration of the revolving line of credit in September 2021, 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	Principles of Consolidation The consolidated financial statements include the accounts of QuickLogic and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated.
Foreign Currency	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 expense, net in the unaudited condensed consolidated statements of operations.
Uses of Estimates	Uses of Estimates The preparation of these consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosures of contingent assets and liabilities and the reported amounts of revenue and expenses during the period. Actual results could differ 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 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 require significant judgment. Judgment is required to determine the Stand-alone Selling Price, or 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 directly observable, such as when the Company does not sell the product or service separately, it determines the SSP using information that may include market conditions and other observable inputs. The Company typically has more than one SSP for individual products and services due to the stratification of those products and services by customers. In these instances, the Company may use information such as the size of the customer, customer tier, type of the technology used, customer demographics, geographic region and other factors in determining the SSP.
Concentration of Risk	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 require collateral. See Note 14 for information regarding concentrations associated with accounts receivable.
Revenue Recognition	Revenue Recognition The Company applies Accounting Standards Codification, or ASC, Topic 606, Revenue from Contracts with Customers , to recognize revenue. The guidance states that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Under the new standard revenue is recognized upon transfer of control of promised products or services to customers in an amount that reflects the consideration it expects to receive in exchange for those products or services. The Company determines revenue recognition through the following steps: • Identification of the contract, or contracts, with a customer; • Identification of the performance obligations in the contract; • Determination of the transaction price; • Allocation of the transaction price to the performance obligations in the contract; and • Recognition of revenue when, or as, a performance obligation is satisfied. As part of its assessment of each contract, the Company evaluates certain factors including the customer’s ability to pay, or credit risk. For each contract, the Company considers the promise to transfer products, each of which is distinct, to be the identified performance obligations. In determining the transaction price, the price stated on the purchase order is typically fixed and represents the net consideration to which the Company expects to be entitled, and therefore there is no variable consideration. As the Company’s standard payment terms are less than one year, the Company has elected, as a practical expedient, to not assess whether a contract has a significant financing component. The Company allocates the transaction price to each distinct product based on its relative stand-alone selling price. The product price as specified on the purchase order is considered the stand-alone selling price as it is an observable source that depicts the price as if sold to a similar customer in similar circumstances.
Leases	Leases The Company adopted Accounting Standards Update, or ASU, No. 2016-02, Leases (Topic 842) . Under Topic 842, all significant lease arrangements are generally recognized at lease commencement. Operating lease right-of-use, or ROU, assets and lease liabilities are recognized at the commencement date. A ROU asset and corresponding lease liability is not recorded for leases with an initial term of 12 months or less (short term leases) and the Company recognizes lease expense for these leases as incurred over the lease term. ROU assets represent the Company’s right to use an underlying asset during the reasonably certain lease terms and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. The Company’s lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. The Company primarily uses its incremental borrowing rate, based on the information available at commencement date, in determining the present value of lease payments. The operating lease ROU asset also includes any lease payments related to initial direct cost and prepayments and excludes lease incentives. Lease expense is recognized on a straight-line basis over the lease term. The Company has lease agreements with lease and non-lease components, which are generally accounted for separately. In accordance with ASU No. 2016-02, the Company recognized right-of-use assets of approximately $975,000 and lease liabilities of approximately $939,000 on the Company’s Consolidated Balance Sheet as of March 31, 2019, with no material impact to its Consolidated Statements of operations. As of September 29, 2019, the Company’s right-of-use assets was approximately $2.2 million and lease liability was approximately $2.1 million as presented on the Company’s Consolidated Balance Sheet. See Note 8 to the Unaudited Consolidated Financial Statements for more details.
Business Combinations	Business Combinations The Company recognizes assets acquired (including goodwill and identifiable intangible assets) and liabilities assumed at fair value on the acquisition date. Subsequent changes to the fair value of such assets acquired and liabilities assumed are recognized in earnings, after the expiration of the measurement period, a period not to exceed 12 months from the acquisition date. Acquisition-related expenses and acquisition-related restructuring costs are recognized in earnings in the period in which they are incurred.
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill represents the excess fair value of consideration transferred over the fair value of net assets acquired in business combinations. The carrying value of goodwill and indefinite lived intangible assets are not amortized, but are annually tested for impairment and more often if there is an indicator of impairment. Intangible assets with finite useful lives are amortized on a straight-line basis over the periods benefited. The Company reviews the recoverability of its long-lived assets when events or changes in circumstances occur that indicate that the carrying value of the asset or asset group may not be recoverable. The assessment of possible impairment is based on the Company's ability to recover the carrying value of the asset or asset group from the expected future pre-tax cash flows (undiscounted and without interest charges) of the related operations. If these cash flows are less than the carrying value of such asset, an impairment loss is recognized for the difference between estimated fair value and carrying value. The measurement of impairment requires management to estimate future cash flows and the fair value of long-lived assets.
Restricted cash	Restricted cash Restricted cash represents amounts pledged as cash security related to the Silicon Valley Bank credit cards.
New Accounting Pronouncements	New Accounting Pronouncements Recently adopted accounting pronouncements: In January 2017, the FASB issued Accounting Standards Update ASU No. 2017-04, Simplifying the Test for Goodwill Impairment G The guidance will be applied prospectively, and is effective for annual and interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted for any impairment tests performed on testing dates after January 1, 2017. st In February 2018, FASB issued ASU No. 2018-02, Income Statement - Reporting Comprehensive Income. In March 2018, FASB issued ASU No. 2018-05, Income Taxes (Topic 740) In June 2018, the FASB issued ASU No. 2018-07 , Improvements to Nonemployee Share-Based Payment Accounting . Currently, share-based payments to nonemployees are accounted for under Subtopic 505-50, which significantly differs from the guidance for share-based payments to employees under Topic 718. This ASU supersedes Subtopic 505-50 by expanding the scope of Topic 718 to include nonemployee awards and generally aligning the accounting for nonemployee awards with the accounting for employee awards. The Company adopted this ASU on December 31, 2018 with no material impact on its results of operations, financial position and cash flows. Recently issued accounting pronouncements not yet adopted: In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement In August 2018, the FASB issued ASU No. 2018-15, Intangibles - Goodwill and Other – Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementations Costs Incurred in a Cloud Computing Arrangement That is a Service Contract. For all other entities, the effective date is fiscal years beginning after December 15, 2021.
Net Loss Per Share	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.

Balance Sheet Components (Table

Balance Sheet Components (Tables)	9 Months Ended
	Sep. 29, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Schedule of Supplemental Balance Sheet Disclosures	The following table provides details relating to certain balance sheet line items as of September 29, 2019, and December 30, 2018 (in thousands): September 29, 2019 December 30, 2018 Inventories: Raw materials $ 191 $ — Work-in-process 2,535 3,120 Finished goods 652 716 $ 3,378 $ 3,836 Property and equipment: Equipment $ 10,703 $ 10,607 Software 1,790 2,788 Furniture and fixtures 35 42 Leasehold improvements 474 712 13,002 14,149 Less: Accumulated depreciation and amortization (11,969 ) (12,700 ) $ 1,033 $ 1,449

Intangible Assets (Tables)

Intangible Assets (Tables)	9 Months Ended
	Sep. 29, 2019
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	The following table provides the details of future annual amortization of intangible assets, based upon the current useful lives as of September 29, 2019 Amount Annual Fiscal Years 2019 (remaining period) $ 38 2020 148 2021 107 2022 107 2023 107 Thereafter 538 Total $ 1,045
Sensi ML
Schedule of Finite-Lived Intangible Assets	The following table provides the details of the carrying value of intangible assets recorded from the acquisition of SensiML during the nine month period ended September 29, 2019 (in thousands): September 29, 2019 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Developed technology $ 959 $ (72 ) $ 887 Customer relationships 81 (30 ) 51 Trade names and trade marks 116 (9 ) 107 Total acquired identifiable intangible assets $ 1,156 $ (111 ) $ 1,045

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 29, 2019
Leases [Abstract]
Summary of Operating and Finance Leases	The following table provides the activity related to operating and finance leases (in thousands): Three Nine Months Ended September 29, 2019 September 29, 2019 Rent expenses relating to operating leases: Fixed $ 186 $ 596 Variable — — Short term 6 33 Total 192 629 Finance lease amortization costs: Amortization of ROU asset 91 273 Interest 3 14 Total $ 94 $ 287
Summary of Supplemental Cash Flow Information	The following table provides the details of supplemental cash flow information (in thousands): Nine Months Ended September 29, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used for operating leases $ 633 Operating cash flows used for finance leases 20 Financing cash flows used for financing leases 283 Total $ 936 Right-of-use assets obtained in exchange for obligations: Operating leases $ 1,920 Finance leases 250 Total $ 2,170
Details of Right-of-Use Assets and Lease Liabilities	The following table provides the details of right-of-use assets and lease liabilities as of September 29, 2019 (in thousands): September 29, 2019 Right-of-use assets: Operating leases $ 1,920 Finance leases 250 Total $ 2,170 Lease liabilities: Operating leases 1,944 Finance leases 141 Total $ 2,085
Schedule of Future Lease Payments for Leases	The following table provided the details of future lease payments for operating and finance leases as of September 29, 2019 (in thousands): Annual Fiscal Years Operating Finance 2019 (Remaining period) $ 157 $ 86 2020 611 63 2021 494 — 2022 409 — 2023 421 — Thereafter 106 — Total lease payments 2,198 149 Less: Interest (254 ) (8 ) Present value of lease liabilities $ 1,944 $ 141
Schedule of Lease Terms and Weighted Average Discount Rate	The following table provides the details of lease terms and discount rates as of September 29, 2019: September 29, 2019 Right-of-use assets: Weighted-average remaining lease term (years) Operating leases 4.00 Finance leases 0.44 Weighted-average discount rates: Operating leases 5.99 % Finance leases 6.89 %

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 29, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Schedule of stock based compensation expense	Stock-based compensation expense included in the Company's consolidated financial statements for the three and nine months ended September 29, 2019 and September 30, 2018 was as follows (in thousands): Three Months Ended Nine Months Ended September 29, 2019 September 30, 2018 September 29, 2019 September 30, 2018 Cost of revenue $ 15 $ 30 $ 59 $ 99 Research and development 521 220 1,708 610 Selling, general and administrative 212 266 723 718 Total costs and expenses $ 748 $ 516 $ 2,490 $ 1,427
Summary of the activity in the shares available for grant	The following table summarizes the activity in the shares available for grant under the 2019 Plan and 2009 Plan during the nine months ended September 29, 2019 (in thousands): Shares Available for Grants 2019 Plan 2009 Plan Balance at December 30, 2018 — 6,760 Authorized 5,000 — RSUs granted (1,261 ) (3,355 ) RSUs forfeited or expired 198 762 Options forfeited 15 20 Plan shares expired — (4,187 ) Balance at September 29, 2019 3,952 —
Summary of stock options outstanding and stock option activity and the related weighted average exercise price	The following table summarizes stock options outstanding and stock option activity under the 2009 Plan and the 2019 Plan, and the related weighted average exercise price, for the nine months ended September 29, 2019: Number of Shares Weighted Average Exercise Price Weighted Average Remaining Term Aggregate Intrinsic Value (in thousands) (in years) (in thousands) Balance outstanding at December 30, 2018 3,201 $ 2.18 Forfeited or expired (580 ) 1.70 Exercised (4 ) 0.78 Balance outstanding at September 29, 2019 2,617 $ 2.29 3.70 $ — Exercisable at September 29, 2019 2,433 $ 2.40 3.46 $ — Vested and expected to vest at September 29, 2019 2,603 $ 2.30 3.69 $ —
Summary of activity for RSUs and PRSUs	A summary of activity for the Company's RSUs for the nine months ended September 29, 2019 is as follows: RSUs & PRSUs Outstanding Number of Shares Weighted Average Grant Date Fair Value (in thousands) Nonvested at December 30, 2018 2,570 $ 1.23 Granted 4,615 0.81 Vested (1,552 ) 0.64 Forfeited (415 ) — Nonvested at September 29, 2019 5,218 $ 1.10
Summary of the fair value of rights issued pursuant to ESPP	The fair value of rights issued pursuant to the Company's 2009 ESPP was estimated on the commencement date of each offering period using the following weighted average assumptions: Three Months Ended Nine Months Ended September 29, 2019 September 30, 2018 September 29, 2019 September 30, 2018 Expected term (months) — 6.00 6.00 6.00 Risk-free interest rate — 2.09 % 2.40 % 2.09 % Volatility — 44.76 % 53.77 % 44.76 % Dividend yield — — — —

Information Concerning Produc_2

Information Concerning Product Lines, Geographic Information and Revenue Concentration (Tables)	9 Months Ended
	Sep. 29, 2019
Segment Reporting [Abstract]
Schedule of revenue by product line	The following is a breakdown of revenue by product line (in thousands): Three Months Ended Nine Months Ended September 29, 2019 September 30, 2018 September 29, 2019 September 30, 2018 Revenue by product line (1) New products $ 1,015 $ 1,523 $ 2,413 $ 4,404 Mature products 1,143 1,987 5,026 4,992 Total revenue $ 2,158 $ 3,510 $ 7,439 $ 9,396 (1) For all periods presented: New products include all products manufactured on 180 nanometer or smaller semiconductor processes, eFPGA IP license, Quick AI and Software revenues. Mature products include all products produced on semiconductor processes larger than 180 nanometer.
Schedule of revenue by shipment destination	The following is a breakdown of revenue by shipment destination (in thousands): Three Months Ended Nine Months Ended September 29, 2019 September 30, 2018 September 29, 2019 September 30, 2018 Revenue by geography: Asia Pacific (1) $ 528 $ 1,737 $ 2,496 $ 4,030 North America (2) 1,518 1,370 3,747 4,409 Europe 112 403 1,196 957 Total revenue $ 2,158 $ 3,510 $ 7,439 $ 9,396 (1) (2)
Summary of distributors and customers accounting for 10% or more of revenue	The following distributors and customers accounted for 10% or more of the Company's revenue for the periods presented: Three Months Ended Nine Months Ended September 29, 2019 September 30, 2018 September 29, 2019 September 30, 2018 Distributor "A" 55 % 29 % 43 % 33 % Distributor "C" * * 10 % * Distributor "E" 11 % * * * Distributor "G" * 11 % 12 % * Distributor "I" * 13 % * * Customer "G" * 17 % * 12 % Customer "B" 17 % 12 % 14 % 12 % Customer "F" 11 % * * * Customer "I" * 10 % 11 % * Customer "J" 10 % * * 12 % Customer "K" * 13 % * * Customer "N" 14 % * * *
Schedule of distributors and customers accounting for 10% or more of accounts receivable	The following distributors and customers accounted for 10% or more of the Company's accounts receivable as of the dates presented: September 29, 2019 December 30, 2018 Distributor "A" 42 % 35 % Distributor "E" 18 % * Distributor "G" * 10 % Distributor "J" 20 % * Customer "M" * 23 % _______________ * Represents less than 10% of revenue and accounts receivable as of the date presented.

The Company and Basis of Pres_3

The Company and Basis of Presentation - Liquidity (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	Nov. 06, 2019	Jun. 21, 2019	Sep. 28, 2018	May 31, 2018	Sep. 29, 2019	Jun. 30, 2019	Sep. 29, 2019	Sep. 30, 2018	Dec. 30, 2018
Liquidity [Line Items]
Cash, cash equivalents and restricted cash					$ 24,800		$ 24,800
Revolving line of credit					$ 15,000		$ 15,000		$ 15,000
Common stock, par value (in dollars per share)		$ 0.001			$ 0.001		$ 0.001		$ 0.001
Shares issued price per share (in dollars per share)		$ 0.50
Net proceeds from issuance of common stock				$ 13,900	$ 8,000	$ 8,000	$ 9,439	$ 15,859
Heritage Bank | Revolving Line of Credit
Liquidity [Line Items]
Revolving line of credit					$ 15,000		$ 15,000		$ 15,000
Line of credit interest rate			0.50%		0.50%		0.50%
Heritage Bank | Revolving Line of Credit | Subsequent Event
Liquidity [Line Items]
Line of credit facility, maturity date	Sep. 28, 2021
Line of credit facility, expiration period	1 year
Line of credit interest rate	0.50%
Line of credit interest rate, one	5.50%
Common stock
Liquidity [Line Items]
Aggregate shares of common stock issued				13.5
Exercise of Option for Overallotment of Shares by Underwriters | Common stock
Liquidity [Line Items]
Aggregate shares of common stock issued		2.4
Underwritten Public Offering | Common stock
Liquidity [Line Items]
Aggregate shares of common stock issued		18.4

Significant Accounting Polici_2

Significant Accounting Policies (Details) - USD ($)	9 Months Ended
	Sep. 29, 2019	Mar. 31, 2019
Accounting Policies [Abstract]
Right of use assets	$ 2,170,000	$ 975,000
Lease Liabilities	$ 2,085,000	$ 939,000
Fair value of assets acquired and liabilities, Description	The Company recognizes assets acquired (including goodwill and identifiable intangible assets) and liabilities assumed at fair value on the acquisition date. Subsequent changes to the fair value of such assets acquired and liabilities assumed are recognized in earnings, after the expiration of the measurement period, a period not to exceed 12 months from the acquisition date. Acquisition-related expenses and acquisition-related restructuring costs are recognized in earnings in the period in which they are incurred

Net Loss Per Share (Details)

Net Loss Per Share (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018	May 31, 2018	May 29, 2018
Common stock | Maximum
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Warrants to purchase aggregate shares of common stock					5,400,000	5,400,000
2009 Stock Plans
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common shares (in shares)	7,800,000	7,000,000	7,800,000	7,000,000

Balance Sheet Components (Detai

Balance Sheet Components (Details) - USD ($) $ in Thousands	Sep. 29, 2019	Dec. 30, 2018
Inventories:
Raw materials	$ 191
Work-in-process	2,535	$ 3,120
Finished goods	652	716
Inventories	3,378	3,836
Property and equipment:
Property and equipment, gross	13,002	14,149
Less: Accumulated depreciation and amortization	(11,969)	(12,700)
Property and equipment, net	1,033	1,449
Equipment
Property and equipment:
Property and equipment, gross	10,703	10,607
Software
Property and equipment:
Property and equipment, gross	1,790	2,788
Furniture and fixtures
Property and equipment:
Property and equipment, gross	35	42
Leasehold improvements
Property and equipment:
Property and equipment, gross	$ 474	$ 712

Business Acquisition - Addition

Business Acquisition - Additional Information (Details) - Sensi ML - USD ($)	3 Months Ended	9 Months Ended
	Sep. 29, 2019	Sep. 29, 2019	Jan. 03, 2019
Restructuring Cost And Reserve [Line Items]
Business Acquisition, Date of Agreement		Jan. 3, 2019
Amortization of intangible assets	$ 37,000	$ 111,000
Acquisition costs		$ 104,000
Common stock escrow security			$ 200,000

Intangible Assets - Schedule of

Intangible Assets - Schedule of Carrying Value of Intangible Assets (Details) $ in Thousands	Sep. 29, 2019USD ($)
Finite Lived Intangible Assets [Line Items]
Net Carrying Amount	$ 1,045
Sensi ML
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,156
Accumulated Amortization	(111)
Net Carrying Amount	1,045
Sensi ML | Developed Technology
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	959
Accumulated Amortization	(72)
Net Carrying Amount	887
Sensi ML | Customer Relationships
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	81
Accumulated Amortization	(30)
Net Carrying Amount	51
Sensi ML | Trade Names and Trade Marks
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	116
Accumulated Amortization	(9)
Net Carrying Amount	$ 107

Intangible Assets - Schedule _2

Intangible Assets - Schedule of Future Annual Amortization of Intangible Assets (Details) $ in Thousands	Sep. 29, 2019USD ($)
Finite Lived Intangible Assets Future Amortization Expense [Abstract]
2019 (remaining period)	$ 38
2020	148
2021	107
2022	107
2023	107
Thereafter	538
Net Carrying Amount	$ 1,045

Debt Obligations - Revolving Li

Debt Obligations - Revolving Line of Credit (Details) - USD ($)	Nov. 06, 2019	Oct. 01, 2019	Sep. 28, 2018	Sep. 29, 2019	Sep. 29, 2019	Sep. 30, 2018	Dec. 30, 2018	Dec. 21, 2018	Dec. 20, 2018
Liquidity [Line Items]
Revolving line of credit				$ 15,000,000	$ 15,000,000		$ 15,000,000
Repayment of line of credit					$ 32,000,000	$ 18,000,000
Heritage Bank | Revolving Line of Credit
Liquidity [Line Items]
Line of credit aggregate commitments			$ 9,000,000					$ 15,000,000	$ 9,000,000
Line of credit interest rate			0.50%	0.50%	0.50%
Minimum cash required for covenant related to credit facility								$ 3,000,000
Revolving line of credit				$ 15,000,000	$ 15,000,000		$ 15,000,000
Interest rate				5.50%	5.50%		6.00%
Heritage Bank | Revolving Line of Credit | Subsequent Event
Liquidity [Line Items]
Line of credit interest rate	0.50%
Line of credit facility, expiration period	1 year
Line of credit facility, maturity date	Sep. 28, 2021
Line of credit interest rate, one	5.50%
Repayment of line of credit		$ 9,000,000

Leases - Additional Information

Leases - Additional Information (Details) $ in Thousands	Sep. 29, 2019USD ($)
Right of use asset	$ 1,920
Lease liability	1,944
Premises
Right of use asset	2,200
Lease liability	$ 2,100
Minimum
Operating leases, lease terms	1 year
Finance leases, lease terms	2 years
Maximum
Operating leases, lease terms	5 years
Finance leases, lease terms	3 years

Leases - Summary of Operating a

Leases - Summary of Operating and Finance Leases (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 29, 2019	Sep. 29, 2019
Rent expenses relating to operating leases:
Fixed	$ 186	$ 596
Short term	6	33
Total	192	629
Finance lease amortization costs:
Amortization of ROU asset	91	273
Interest	3	14
Total	$ 94	$ 287

Leases - Summary of Supplementa

Leases - Summary of Supplemental Cash Flow Information (Details) $ in Thousands	9 Months Ended
	Sep. 29, 2019USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows used for operating leases	$ 633
Operating cash flows used for finance leases	20
Financing cash flows used for financing leases	283
Total	936
Right-of-use assets obtained in exchange for obligations:
Operating leases	1,920
Finance leases	250
Total	$ 2,170

Leases - Details of Right-of-Us

Leases - Details of Right-of-Use Assets and Lease Liabilities (Details) - USD ($)	Sep. 29, 2019	Mar. 31, 2019
Right-of-use assets:
Operating leases	$ 1,920,000
Finance leases	250,000
Total	2,170,000	$ 975,000
Lease liabilities:
Operating leases	1,944,000
Finance leases	141,000
Total	$ 2,085,000	$ 939,000

Leases - Schedule of Future Lea

Leases - Schedule of Future Lease Payments for Leases (Details) $ in Thousands	Sep. 29, 2019USD ($)
Lessee Disclosure [Abstract]
Operating lease, 2019 (Remaining period)	$ 157
Operating lease, 2020	611
Operating lease, 2021	494
Operating lease, 2022	409
Operating lease, 2023	421
Operating lease, Thereafter	106
Operating lease, Total lease payments	2,198
Operating lease, Less: Interest	(254)
Operating leases	1,944
Finance lease, 2019 (Remaining period)	86
Finance lease, 2020	63
Finance lease, Total lease payments	149
Finance lease, Less: Interest	(8)
Finance lease, Present value of lease liabilities	$ 141

Leases - Schedule of Lease Term

Leases - Schedule of Lease Terms and Weighted Average Discount Rate (Details)	Sep. 29, 2019
Weighted-average remaining lease term (years)
Operating leases	4 years
Finance leases	5 months 8 days
Weighted-average discount rates:
Operating leases	5.99%
Finance leases	6.89%

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Details) - USD ($)	Sep. 29, 2019	Dec. 30, 2018
Money market funds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	$ 23,900,000	$ 262,000

Stockholders' Equity - Common S

Stockholders' Equity - Common Stock and Preferred Stock (Details) - shares	Sep. 29, 2019	Dec. 30, 2018
Equity [Abstract]
Common stock authorized to issue (in shares)	200,000,000	200,000,000
Preferred stock, authorized but unissued (in shares)	10,000,000	10,000,000

Stockholders' Equity - Issuance

Stockholders' Equity - Issuance of Common Stock and Warrants (Details)	Jun. 21, 2019$ / sharesshares	May 29, 2018$ / sharesshares	May 31, 2018USD ($)$ / sharesshares	Sep. 29, 2019USD ($)$ / shares	Jun. 30, 2019USD ($)	Sep. 29, 2019USD ($)$ / shares	Sep. 30, 2018USD ($)	Mar. 29, 2019USD ($)offering	Dec. 30, 2018$ / shares
Class Of Stock [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.001			$ 0.001		$ 0.001			$ 0.001
Shares issued price per share (in dollars per share) | $ / shares	$ 0.50
Net proceeds from issuance of common stock | $			$ 13,900,000	$ 8,000,000	$ 8,000,000	$ 9,439,000	$ 15,859,000
Shelf registration, number of offerings | offering								1
Shelf registration, maximum offering | $								$ 75,000,000
Number of common stock contain in each unit			1
Number of warrant contain in each unit			0.40
Exercise price of each unit | $ / shares			$ 1.15
Exercisable period of warrants		60 months
Strike price of warrants (in dollars per share) | $ / shares		$ 1.38
Fair value assumptions of warrants, expected term		5 years
Measurement Input, Share Price
Class Of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input		0.57
Measurement Input, Risk Free Interest Rate
Class Of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input		2.58
Measurement Input, Price Volatility
Class Of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input		52.75
Measurement Input, Expected Dividend Rate
Class Of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input		0
Common stock
Class Of Stock [Line Items]
Aggregate shares of common stock issued			13,500,000
Common stock | Maximum
Class Of Stock [Line Items]
Warrants to purchase aggregate shares of common stock		5,400,000	5,400,000
Underwritten Public Offering | Common stock
Class Of Stock [Line Items]
Aggregate shares of common stock issued	18,400,000
Exercise of Option for Overallotment of Shares by Underwriters | Common stock
Class Of Stock [Line Items]
Aggregate shares of common stock issued	2,400,000

Employee Stock Plans - 2019 Sto

Employee Stock Plans - 2019 Stock Plan (Details) - 2019 Plan - shares	Apr. 24, 2019	Sep. 29, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock are available for grants	5,000,000	4,000,000
Cancellation of Available shares	4,186,979

Employee Stock Plans - Employee

Employee Stock Plans - Employee Stock Purchase Plan (Details) - 2009 ESPP - shares	Apr. 26, 2017	Apr. 23, 2015	Sep. 29, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares of common stock reserved for issuance (in shares)	1,500,000	1,000,000
Shares reserved for issuance (in shares)			873,000

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of Allocation of Recognized Period Cost (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total costs and expenses	$ 748,000	$ 516,000	$ 2,490,000	$ 1,427,000
Stock-based compensation, capitalized costs	0	0	0	0
Cost of revenue
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total costs and expenses	15,000	30,000	59,000	99,000
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total costs and expenses	521,000	220,000	1,708,000	610,000
Selling, general and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total costs and expenses	$ 212,000	$ 266,000	$ 723,000	$ 718,000

Stock-Based Compensation - Narr

Stock-Based Compensation - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018	Jun. 30, 2019	Dec. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share price (in dollars per share)	$ 0.35		$ 0.35
The total intrinsic value of options exercised	$ 0	$ 5,000	$ 0	$ 5,000
Total cash received from employees as a result of employee stock option exercises			3,600	5,000
Total stock-based compensation	$ 748,000	$ 516,000	$ 2,490,000	$ 1,427,000
Weighted average estimated fair value (in dollars per share)	$ 1.10		$ 1.10			$ 1.23
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted in period	0	0	0	0
Total stock-based compensation	$ 24,000	$ 30,000	$ 73,000	$ 102,000
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	724,000	435,000	2,400,000	1,200,000
Unrecognized compensation expense	2,700,000	2,100,000	$ 2,700,000	2,100,000
Unrecognized stock-based compensation expense weighted average period			1 year 8 months 12 days
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense	0		$ 0
Common Stock are available for grants					873,000
Stock-based compensation expense	$ 0	$ 51,000	$ 60,000	$ 168,000
Weighted average estimated fair value (in dollars per share)	$ 0	$ 0.47	$ 0	$ 0.47

Stock-Based Compensation - Sc_2

Stock-Based Compensation - Schedule of Stock Based Compensation Award Activity (Details) shares in Thousands	9 Months Ended
	Sep. 29, 2019shares
Shares Available for Grant
RSUs granted (in shares)	(4,615)
Forfeited or expired (in shares)	415
2019 Plan
Shares Available for Grant
Balance at end of period (in shares)	4,000
2019 Plan | RSUs and Performance RSUs
Shares Available for Grant
Authorized (in shares)	5,000
Options forfeited (in shares)	15
Balance at end of period (in shares)	3,952
2019 Plan | Restricted Stock Units (RSUs)
Shares Available for Grant
RSUs granted (in shares)	(1,261)
Forfeited or expired (in shares)	198
2009 Plan | RSUs and Performance RSUs
Shares Available for Grant
Balance at beginning of period (in shares)	6,760
Options forfeited (in shares)	20
Plan shares expired (in shares)	(4,187)
2009 Plan | Restricted Stock Units (RSUs)
Shares Available for Grant
RSUs granted (in shares)	(3,355)
Forfeited or expired (in shares)	762

Stock-Based Compensation - Sc_3

Stock-Based Compensation - Schedule of Stock Options Activity (Details) shares in Thousands	9 Months Ended
	Sep. 29, 2019$ / sharesshares
Number of Shares
Balance outstanding at beginning of period, (in shares) | shares	3,201
Forfeited or expired, (in shares) | shares	(580)
Exercised (in shares) | shares	(4)
Balance outstanding at end of period, (in shares) | shares	2,617
Exercisable, (in shares) | shares	2,433
Vested and expected to vest, (in shares) | shares	2,603
Weighted Average Exercise Price
Balance outstanding at beginning of period, (in dollars per share) | $ / shares	$ 2.18
Forfeited or expired, (in dollars per share) | $ / shares	1.70
Exercised (in dollars per share) | $ / shares	0.78
Balance outstanding at end of period, (in dollars per share) | $ / shares	2.29
Exercisable, (in dollars per share) | $ / shares	2.40
Vested and expected to vest, (in dollars per share) | $ / shares	$ 2.30
Weighted Average Remaining Term
Balance outstanding	3 years 8 months 12 days
Exercisable	3 years 5 months 15 days
Vested and expected to vest	3 years 8 months 8 days

Stock-Based Compensation - Sc_4

Stock-Based Compensation - Schedule of Restricted Stock and Restricted Stock Units Activity (Details) shares in Thousands	9 Months Ended
	Sep. 29, 2019$ / sharesshares
Number of Shares
Nonvested at beginning of period, (in shares) | shares	2,570
Granted, (in shares) | shares	4,615
Vested, (in shares) | shares	(1,552)
Forfeited, (in shares) | shares	(415)
Nonvested at end of period, (in shares) | shares	5,218
Weighted Average Grant Date Fair Value
Nonvested at beginning of period, (in dollars per share) | $ / shares	$ 1.23
Granted, (in dollars per share) | $ / shares	0.81
Vested, (in dollars per share) | $ / shares	0.64
Forfeited, (in dollars per shares) | $ / shares	0
Nonvested at end of period, (in dollars per share) | $ / shares	$ 1.10

Stock-Based Compensation - Sc_5

Stock-Based Compensation - Schedule of Employee Stock Purchase Plan (Details) - ESPP	3 Months Ended		9 Months Ended
	Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (months)		6 months	6 months	6 months
Risk-free interest rate		2.09%	2.40%	2.09%
Volatility		44.76%	53.77%	44.76%
Dividend yield	0.00%	0.00%	0.00%	0.00%

Income Taxes (Details)

Income Taxes (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018	Dec. 30, 2018
Income Tax Disclosure [Abstract]
Net income tax expense (benefit)	$ 70,000	$ 29,000	$ (171,000)	$ 119,000
Unrecognized tax benefits that would affect effective tax rate	$ 0		$ 0		$ 0

Information Concerning Produc_3

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
	Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018
Revenue from External Customer [Line Items]
Total revenue	$ 2,158	$ 3,510	$ 7,439	$ 9,396
New products
Revenue from External Customer [Line Items]
Total revenue	1,015	1,523	2,413	4,404
Mature products
Revenue from External Customer [Line Items]
Total revenue	$ 1,143	$ 1,987	$ 5,026	$ 4,992

Information Concerning Produc_4

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
	Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 2,158	$ 3,510	$ 7,439	$ 9,396
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	528	1,737	2,496	4,030
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	1,518	1,370	3,747	4,409
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	112	403	1,196	957
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 510	$ 842	$ 1,300	$ 1,200
Japan | Total Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of total revenue	24.00%	24.00%	17.00%	13.00%
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue				$ 1,400
China | Total Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of total revenue				15.00%
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 1,400	$ 1,400	$ 3,600	$ 4,300
United States | Total Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of total revenue	67.00%	39.00%	49.00%	46.00%

Information Concerning Produc_5

Information Concerning Product Lines, Geographic Information and Revenue Concentration - Schedule of Customer and Distributor Concentration (Details)	3 Months Ended		9 Months Ended
	Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018	Dec. 30, 2018
Distributor A
Revenue, Major Customer [Line Items]
Percentage of revenue from major distributors and customers	55.00%	29.00%	43.00%	33.00%
Percentage of accounts receivable from major customer	42.00%		42.00%		35.00%
Distributor C
Revenue, Major Customer [Line Items]
Percentage of revenue from major distributors and customers			10.00%
Distributor E
Revenue, Major Customer [Line Items]
Percentage of revenue from major distributors and customers	11.00%
Percentage of accounts receivable from major customer	18.00%		18.00%
Distributor G
Revenue, Major Customer [Line Items]
Percentage of revenue from major distributors and customers		11.00%	12.00%
Percentage of accounts receivable from major customer					10.00%
Distributor I
Revenue, Major Customer [Line Items]
Percentage of revenue from major distributors and customers		13.00%
Customer G
Revenue, Major Customer [Line Items]
Percentage of revenue from major distributors and customers		17.00%		12.00%
Customer B
Revenue, Major Customer [Line Items]
Percentage of revenue from major distributors and customers	17.00%	12.00%	14.00%	12.00%
Customer F
Revenue, Major Customer [Line Items]
Percentage of revenue from major distributors and customers	11.00%
Customer I
Revenue, Major Customer [Line Items]
Percentage of revenue from major distributors and customers		10.00%	11.00%
Customer J
Revenue, Major Customer [Line Items]
Percentage of revenue from major distributors and customers	10.00%			12.00%
Customer K
Revenue, Major Customer [Line Items]
Percentage of revenue from major distributors and customers		13.00%
Customer N
Revenue, Major Customer [Line Items]
Percentage of revenue from major distributors and customers	14.00%
Distributor J
Revenue, Major Customer [Line Items]
Percentage of accounts receivable from major customer	20.00%		20.00%
Customer M
Revenue, Major Customer [Line Items]
Percentage of accounts receivable from major customer					23.00%

Information Concerning Produc_6

Information Concerning Product Lines, Geographic Information and Revenue Concentration - Narrative (Details)	9 Months Ended
	Sep. 29, 2019
Outside United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of long lived assets, including property and equipment and other assets	11.00%

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details) - USD ($)	Sep. 29, 2019	Dec. 30, 2018
Purchase Commitment Excluding Longterm Commitment [Line Items]
Purchase obligations due within next twelve months	$ 795,000
Wafer and finished goods inventory
Purchase Commitment Excluding Longterm Commitment [Line Items]
Outstanding commitment for purchases	74,000	$ 22,000
Other goods and services
Purchase Commitment Excluding Longterm Commitment [Line Items]
Total outstanding purchase obligations	$ 795,000