Document and Entity Information - shares	3 Months Ended
	Mar. 29, 2020	May 11, 2020
Document and entity information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Mar. 29, 2020
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 290
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 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		9,282,105
Current Fiscal Year End Date	--01-03
Document Fiscal Year Focus	2020
Document Period Focus	Q1
Entity Central Index Key	0001021270
Amendment Flag	false