DOCUMENT AND ENTITY INFORMATION	9 Months Ended
	Sep. 30, 2012	Aug. 10, 2012
Entity Registrant Name	COMMUNITY BANK SHARES OF INDIANA INC
Entity Central Index Key	0000933590
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Trading Symbol	cbin
Entity Common Stock, Shares Outstanding		3,362,553
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2012
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2012