Unaudited Quarterly Results (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 02, 2019	Nov. 03, 2018	Aug. 04, 2018	May 05, 2018	Feb. 03, 2018	Oct. 28, 2017	Jul. 29, 2017	Apr. 29, 2017	Feb. 02, 2019	Feb. 03, 2018
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 6,127	$ 5,842	$ 7,073	$ 5,402	$ 6,884	$ 7,796	$ 7,868	$ 6,817
Income (loss) from continuing operations before income taxes	113	154	(8,002)	(1,903)	(42,793)	(3,284)	(2,764)	(3,990)	$ (9,638)	$ (52,831)
Net income (loss) from continuing operations	$ (595)	$ 63	$ (9,053)	$ (2,741)	$ (45,157)	$ (2,395)	$ (4,766)	$ (3,543)
Net income (loss) per share - basic (in dollars per share)	$ (0.04)	$ 0.00	$ (0.65)	$ (0.20)	$ (3.23)	$ (0.17)	$ (0.37)	$ (0.27)	$ (0.87)	$ (4.17)
Net income (loss) per share - diluted (in dollars per share)	$ (0.04)	$ 0.00	$ (0.65)	$ (0.20)	$ (3.23)	$ (0.17)	$ (0.37)	$ (0.27)	$ (0.87)	$ (4.17)