Document And Entity Information - shares	9 Months Ended
	Mar. 31, 2016	May. 16, 2016
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3
Entity Registrant Name	CONSUMERS BANCORP INC /OH/
Entity Central Index Key	0001006830
Current Fiscal Year End Date	--06-30
Entity Filer Category	Smaller Reporting Company
Trading Symbol	CBKM
Entity Common Stock, Shares Outstanding		2,727,383