Document and Entity Information - shares	3 Months Ended
	May 05, 2018	May 25, 2018
Document And Entity Information
Entity Registrant Name	Christopher & Banks Corporation
Entity Central Index Key	0000883943
Current Fiscal Year End Date	--02-02
Entity Filer Category	Non-accelerated Filer
Document Type	10-Q
Document Period End Date	May 05, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		38,075,509