Accounting For Share-Based Payments - Options (Details) - Aug. 01, 2015 - Stock Options [Member] - USD ($) $ / shares in Units, $ in Thousands	Total
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of period (number of shares)	1,230,253
Granted (number of shares)	10,000
Exercised (number of shares)	(17,387)
Forfeited (number of shares)	(117,202)
Outstanding at end of period (number of shares)	1,105,664
Vested and expected to vest at end of period (number of shares)	1,055,660
Exercisable at beginning of period (number of shares)	1,055,660
Outstanding at beginning of period (weighted average exercise price)	$ 8.43
Granted (weighted average exercise price)	5.32
Exercised (weighted average exercise price)	3.27
Forfeited (weighted average exercise price)	11.67
Outstanding at end of period (weighted average exercise price)	8.15
Vested and expected to vest at end of period (weighted average exercise price)	8.12
Exercisable at end of period (weighted average exercise price)	$ 8.12
Outstanding at end of period (weighted average remaining contractual life)	6 years 3 months 18 days
Vested and expected to vest at end of period (weighted average remaining contractual life)	6 years 3 months 18 days
Exercisable at end of period (weighted average remaining contractual life)	6 years 3 months 18 days
Outstanding at end of period (aggregate intrinsic value)	$ 111
Vested and expected to vest at end of period (aggregate intrinsic value)	108
Exercisable at end of period (aggregate intrinsic value)	$ 0