Stock-Based Compensation - Stock Option Activity (Details) $ / shares in Units, $ in Thousands	6 Months Ended		12 Months Ended
	Aug. 01, 2020 USD ($) $ / shares shares		Feb. 01, 2020 $ / shares shares
Number of shares
Options granted	3,185,542
Employee Stock Plan, 2006 Plan, 2016 Plan and Inducement Awards
Number of shares
Outstanding options at beginning of year	754,833
Options granted	3,185,542	[1]
Options expired and canceled	(264,146)
Outstanding options at end of quarter	3,676,229		754,833
Options exercisable at end of quarter	490,687
Weighted-average exercise price per option
Outstanding options at beginning of year | $ / shares	$ 4.84
Options granted | $ / shares	0.55	[1]
Options expired and canceled | $ / shares	4.85
Outstanding options at end of quarter | $ / shares	1.12		$ 4.84
Options exercisable at end of quarter | $ / shares	$ 4.83
Weighted-average remaining contractual term
Outstanding options	9 years		2 years 7 months 6 days
Options exercisable at end of quarter	3 years 1 month 6 days
Aggregate Intrinsic Value
Options granted | $	$ 2	[1]

[1] In the second quarter of fiscal 2020, the Company granted to Mr. Kanter a stock option to purchase 450,000 shares of the Company’s common stock, at an exercise price of $0.64 per share, which will vest over 34 months. The Company also granted stock options to purchase an aggregate of 2,735,542 shares of the Company’s common stock, at an exercise price of $0.53 per share, in connection with the time-based grant of awards under its 2020-2022 LTIP, see Note 5, Long-Term Incentive Plans.