Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2021	Nov. 29, 2021
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Document Transition Report	false
Entity File Number	1-12368
Entity Registrant Name	TANDY LEATHER FACTORY, INC
Entity Central Index Key	0000909724
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	75-2543540
Entity Address, Address Line One	1900 Southeast Loop 820
Entity Address, City or Town	Fort Worth
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	76140
City Area Code	817
Local Phone Number	872-3200
Title of 12(b) Security	Common Stock, par value $0.0024
Trading Symbol	TLFA
Entity Current Reporting Status	No
Entity Interactive Data Current	No
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		8,755,921