Accounting For Share-Based Payments - Options (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2015	Nov. 01, 2014	Oct. 31, 2015	Nov. 01, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 43	$ 104	$ 217	$ 313
Stock Options [Member]
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)			(258,950)
Outstanding at end of period (number of shares)	963,916		963,916
Vested and expected to vest at end of period (number of shares)	932,662		932,662
Exercisable at beginning of period (number of shares)	932,662		932,662
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)			9.88
Outstanding at end of period (weighted average exercise price)	$ 8.10		8.10
Vested and expected to vest at end of period (weighted average exercise price)	8.11		8.11
Exercisable at end of period (weighted average exercise price)	$ 8.11		$ 8.11
Outstanding at end of period (weighted average remaining contractual life)			6 years 2 months 12 days
Vested and expected to vest at end of period (weighted average remaining contractual life)			6 years 2 months 12 days
Exercisable at end of period (weighted average remaining contractual life)			6 years 2 months 12 days
Outstanding at end of period (aggregate intrinsic value)	$ 0		$ 0
Vested and expected to vest at end of period (aggregate intrinsic value)	0		0
Exercisable at end of period (aggregate intrinsic value)	$ 0		$ 0