Accounting For Share-Based Payments - Options (Details) (Stock Options [Member], USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended
	Nov. 01, 2014
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of period (number of shares)	1,208,275
Granted (number of shares)	0
Exercised (number of shares)	(106,526)
Forfeited (number of shares)	(2,259)
Outstanding at end of period (number of shares)	1,099,490
Vested and expected to vest at end of period (number of shares)	1,007,821
Exercisable at beginning of period (number of shares)	1,007,821
Outstanding at beginning of period (weighted average exercise price)	$ 8.32
Granted (weighted average exercise price)	$ 0.00
Exercised (weighted average exercise price)	$ 3.69
Forfeited (weighted average exercise price)	$ 10.82
Outstanding at end of period (weighted average exercise price)	$ 8.77
Vested and expected to vest at end of period (weighted average exercise price)	$ 8.71
Exercisable at end of period (weighted average exercise price)	$ 8.71
Outstanding at end of period (weighted average remaining contractual life)	5 years 9 months 18 days
Vested and expected to vest at end of period (weighted average remaining contractual life)	5 years 8 months 12 days
Exercisable at end of period (weighted average remaining contractual life)	5 years 8 months 12 days
Outstanding at end of period (aggregate intrinsic value)	$ 277
Vested and expected to vest at end of period (aggregate intrinsic value)	277
Exercisable at end of period (aggregate intrinsic value)	$ 0