Document And Entity Information - shares	6 Months Ended
	Jul. 04, 2021	Aug. 12, 2021
Document Information [Line Items]
Entity Central Index Key	0000882508
Entity Registrant Name	QUICKLOGIC Corp
Amendment Flag	false
Current Fiscal Year End Date	--01-02
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2021
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jul. 04, 2021
Document Transition Report	false
Entity File Number	000-22671
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	77-0188504
Entity Address, Address Line One	2220 Lundy Avenue
Entity Address, City or Town	San Jose
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95131-1816
City Area Code	408
Local Phone Number	990-4000
Title of 12(b) Security	Common Stock, par value $.001 per share
Trading Symbol	QUIK
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		11,541,978