Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Jan. 02, 2022	Mar. 11, 2022	Jul. 04, 2021
Document and entity information [Abstract]
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Jan. 02, 2022
Entity File Number	001-39053
Entity Registrant Name	BBQ HOLDINGS, INC.
Entity Incorporation, State or Country Code	MN
Entity Tax Identification Number	83-4222776
Entity Address, Address Line One	12701 Whitewater Drive, Suite 100
Entity Address, City or Town	Minnetonka
Entity Address, State or Province	MN
Entity Address, Postal Zip Code	55343
City Area Code	952
Local Phone Number	294-1300
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	BBQ
Security Exchange Name	NASDAQ
Entity Well Known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 89.7
Entity Common Stock Shares Outstanding		10,500,388
Auditor Name	Schechter, Dokken, Kanter, Andrews & Selcer, Ltd.
Auditor Firm ID	494
Auditor Location	Minneapolis, Minnesota
Current Fiscal Year End Date	--01-02
Document Fiscal Year Focus	2021
Document Period Focus	FY
Entity Central Index Key	0001021270
Amendment Flag	false