Unaudited Quarterly Results (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 03, 2018	Oct. 28, 2017	Jul. 29, 2017	Apr. 29, 2017	Jan. 28, 2017	Oct. 29, 2016	Jul. 30, 2016	Apr. 30, 2016	Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
Unaudited Quarterly Results
Revenues	$ 6,884	$ 7,796	$ 7,868	$ 6,817	$ 8,376	$ 6,495	$ 8,473	$ 10,678
Loss from continuing operations before income taxes	(42,793)	(3,284)	(2,764)	(3,990)	(10,625)	(1,362)	2,444	4,079	$ (52,831)	$ (5,464)	$ 12,791
Net loss from continuing operations	$ (45,157)	$ (2,395)	$ (4,766)	$ (3,543)	$ (11,948)	$ (873)	$ 1,518	$ 2,581
Net income (loss) per share - basic (in dollars per share)	$ (3.23)	$ (0.17)	$ (0.37)	$ (0.27)	$ (1.04)	$ (0.10)	$ 0.17	$ 0.30	$ (4.17)	$ (0.84)	$ 0.97
Net income (loss) per share - diluted (in dollars per share)	$ (3.23)	$ (0.17)	$ (0.37)	$ (0.27)	$ (1.04)	$ (0.10)	$ 0.17	$ 0.29	$ (4.17)	$ (0.84)	$ 0.95