Stockholder's Equity and Stock-Based Compensation - Nonvested Stock Option Activity (Details) - Employee Stock Option - $ / shares	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019
Number of Shares
Nonvested, beginning of period (in shares)	2,396,470
Granted (in shares)	1,442,836
Vested (in shares)	(741,417)
Forfeited (in shares)	(773,346)
Nonvested, end of period (in shares)	2,324,543	2,396,470
Weighted Average Grant Date Fair Value
Nonvested, beginning of period (in dollars per share)	$ 0.59
Granted (in dollars per share)	0.16	$ 0.57
Vested (in dollars per share)	0.61	0.72
Forfeited (in dollars per share)	0.57
Nonvested, end of period (in dollars per share)	$ 0.33	$ 0.59