Document and Entity Information	3 Months Ended
	Mar. 31, 2012	May 07, 2012
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q1
Trading Symbol	CBNK
Entity Registrant Name	CHICOPEE BANCORP, INC.
Entity Central Index Key	0001355786
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		5,588,224