Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 03, 2017	Oct. 28, 2016	Jul. 29, 2016	Apr. 29, 2016	Jan. 29, 2016	Oct. 30, 2015	Jul. 31, 2015	May 01, 2015	Feb. 03, 2017	Jan. 29, 2016	Jan. 30, 2015
Earnings Per Share [Abstract]
Net loss	$ (6,817)	$ (7,718)	$ (12,051)	$ (11,627)	$ (14,899)	$ (18,528)	$ (21,124)	$ (17,830)	$ (38,213)	$ (72,381)	$ (38,490)
Weighted average number of shares outstanding, basic and diluted (in shares)	80,009	80,009	80,009	70,330	70,000	70,000	70,000	70,000	77,635	70,000	70,000
Loss per common share, basic and diluted (usd per share)	$ (0.09)	$ (0.10)	$ (0.15)	$ (0.17)	$ (0.21)	$ (0.26)	$ (0.30)	$ (0.25)	$ (0.49)	$ (1.03)	$ (0.55)
Weighted-average anti-dilutive stock options, non-vested restricted stock and restricted stock units (in shares)									3,806	0	0