Stock-Based Compensation (Stock Option Activity) (Details) - Stock Options [Member] - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Oct. 29, 2016	Oct. 31, 2015
Number of shares
Outstanding at January 30, 2016 (in shares)	310,066
Granted (in shares)	0	0
Exercised (in shares)	(261,502)
Forfeited (in shares)	0
Outstanding at October 29, 2016, all vested (in shares)	48,564
Weighted average exercise price
Outstanding at January 30, 2016 (in dollars per share)	$ 7.34
Granted (in dollars per share)	0.00
Exercised (in dollars per share)	7.18
Forfeited (in dollars per share)	0.00
Outstanding at October 29, 2016, all vested (in dollars per share)	$ 8.19
Weighted average remaining contractual term (in years)	6 months 25 days
Aggregate intrinsic value	$ 2,627