Stock Compensation Plans - Stock Option Activity under Two Thousand Six And Two Thousand Sixteen Plan (Details) - Employee Stock Plan, 2006 Plan and 2016 Plan	12 Months Ended
	Feb. 03, 2018 USD ($) $ / shares shares
Number of Shares
Outstanding options at beginning of year	2,524,546
Options granted	30,000
Options canceled	(1,358,636)
Options exercised	0
Outstanding options at end of year	1,195,910
Options exercisable at end of year	1,175,910
Vested and expected to vest at end of year	1,195,910
Weighted-average exercise price per option
Outstanding options at beginning of year | $ / shares	$ 4.98
Options granted | $ / shares	1.85
Options canceled | $ / shares	5.04
Outstanding options at end of year | $ / shares	4.80
Options exercisable at end of year | $ / shares	4.85
Vested and expected to vest at end of year | $ / shares	$ 4.80
Weighted-average remaining contractual term
Outstanding options at end of year	4 years 4 months 24 days
Options exercisable at end of year	4 years 4 months 24 days
Vested and expected to vest at end of year	4 years 4 months 24 days
Aggregate Intrinsic Value
Outstanding options at end of year | $	$ 21,750
Options exercisable at end of year | $	7,250
Vested and expected to vest at end of year | $	$ 21,750