Cover - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Mar. 02, 2022	Jun. 30, 2021
Cover [Abstract]
Entity Central Index Key	0001367859
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-33003
Entity Registrant Name	CITIZENS COMMUNITY BANCORP, INC.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	20-5120010
Entity Address, Address Line One	2174 EastRidge Center
Entity Address, City or Town	Eau Claire
Entity Address, State or Province	WI
Entity Address, Postal Zip Code	54701
City Area Code	715
Local Phone Number	836-9994
Title of 12(b) Security	Common Stock, $.01 par value per share
Trading Symbol	CZWI
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	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Entity Shell Company	false
Entity Public Float			$ 138.8
Entity Common Stock, Shares Outstanding		10,536,544
Documents Incorporated by Reference	Portions of the Proxy Statement for the 2022 Annual Meeting of the Stockholders of the Registrant are incorporated by reference into Part III of this report.