Cover Page - shares	3 Months Ended
	Mar. 31, 2021	May 06, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2021
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 Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		10,888,553
Entity Central Index Key	0001367859
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer