Document and Entity Information (USD $)	12 Months Ended
	Feb. 01, 2014	Mar. 07, 2014	Aug. 03, 2013
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Feb. 01, 2014
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	FY
Trading Symbol	DXLG
Entity Registrant Name	DESTINATION XL GROUP, INC.
Entity Central Index Key	0000813298
Current Fiscal Year End Date	--02-01
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		50,607,809
Entity Public Float			$ 235,500,000