Document and Entity Information - shares	6 Months Ended
	Jul. 29, 2017	Aug. 25, 2017
Document And Entity Information
Entity Registrant Name	Christopher & Banks Corporation
Entity Central Index Key	0000883943
Current Fiscal Year End Date	--02-03
Entity Filer Category	Non-accelerated Filer
Document Type	10-Q
Document Period End Date	Jul. 29, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		37,855,181
Entity Current Reporting Status	Yes