Document and Entity Information - shares	6 Months Ended
	Dec. 31, 2021	Feb. 09, 2022
Document and Entity Information
Document Type	10-Q
Document Period End Date	Dec. 31, 2021
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	000-56049
Entity Registrant Name	TEB Bancorp, Inc.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	83-2040340
Entity Address, Address Line One	2290 N Mayfair Road
Entity Address, City or Town	Wauwatosa
Entity Address, State or Province	WI
Entity Address, Postal Zip Code	53226
City Area Code	414
Local Phone Number	476-6434
Title of 12(b) Security	None
No Trading Symbol Flag	true
Security Exchange Name	NONE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		2,624,343
Entity Central Index Key	0001751700
Current Fiscal Year End Date	--06-30
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2
Amendment Flag	false