Income and Other Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 29, 2016	Jul. 31, 2015	Jul. 29, 2016	Jul. 31, 2015	Jan. 29, 2016
Valuation Allowance [Line Items]
Loss before income taxes	$ (19,196,000)	$ (32,046,000)	$ (37,831,000)	$ (59,194,000)
Income tax benefit	$ (7,145,000)	$ (10,922,000)	$ (14,153,000)	$ (20,240,000)
Effective tax rate	37.20%	34.10%	37.40%	34.20%
Loss carryforwards	$ 2,300,000		$ 2,300,000		$ 2,400,000
Net loss	12,051,000	$ 21,124,000	23,678,000	$ 38,954,000
Unrecognized tax benefits	200,000		200,000		0
Unrecognized deferred tax liability	$ 0		0		$ 0
Prepared Using Separate Return Method
Valuation Allowance [Line Items]
Loss before income taxes			(37,800,000)
Income tax benefit			(5,200,000)
Net loss			$ (32,700,000)