Summary of Significant Accounting Policies - Activity For The Company's Stock Options (Details) - Stock Options - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jul. 30, 2016	Jan. 30, 2016
Shares
Outstanding at the beginning of the period (in shares)	1,113,003
Granted (in shares)	18,000
Expired/forfeited (in shares)	(667)
Outstanding at the end of the period (in shares)	1,130,336	1,113,003
Vested and Exercisable at the end of the period (in shares)	804,156
Weighted Average Price
Outstanding at the beginning of the period (in dollars per share)	$ 17.50
Granted (in dollars per share)	12.24
Canceled/forfeited (in dollars per share)	15.20
Outstanding at the end of the period (in dollars per share)	17.42	$ 17.50
Vested and Exercisable at the end of the period (in dollars per share)	$ 16.43
Weighted Average Remaining Contractual Term (in years)
Outstanding	3 years 7 months 10 days	4 years 22 days
Vested and Exercisable at the end of the period	2 years 10 months 10 days
Aggregate Intrinsic Value
Outstanding at the beginning of the period (in dollars)	$ 1,339
Outstanding at the end of the period (in dollars)		$ 1,339
Unrecognized stock-based compensation
Unrecognized stock-based compensation expense (in dollars)	$ 1,562
Weighted average period for recognition of unrecognized stock-based compensation expense	1 year 9 months 11 days
Total fair value of vested options (in dollars)	$ 1,197