Summary of Significant Accounting Policies - Changes in Carrying Value of Intangible Assets (Details) - USD ($) $ in Thousands		12 Months Ended
		Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Intangible Assets By Major Class [Line Items]
February 3, 2018		$ 1,821
Additions		1,150
Impairment		(1,500)
Amortization		(321)	$ (400)	$ (400)
February 2, 2019		1,150	1,821
Casual Male Trademark
Intangible Assets By Major Class [Line Items]
February 3, 2018		292
Amortization		(292)
February 2, 2019			292
Other Intangible Assets
Intangible Assets By Major Class [Line Items]
February 3, 2018	[1]	29
Amortization	[1]	(29)
February 2, 2019	[1]		29
Rochester Trademark
Intangible Assets By Major Class [Line Items]
February 3, 2018		1,500
Impairment		(1,500)
February 2, 2019			$ 1,500
dxl.com Domain
Intangible Assets By Major Class [Line Items]
Additions		1,150
February 2, 2019		$ 1,150

[1] Other intangibles consisted of customer lists and were amortized based on an estimated economic useful life of 16 years.