Shareholders' Equity Shareholders' Equity - Textuals (Details) $ / shares in Units, $ in Thousands					12 Months Ended
		Apr. 18, 2012 $ / shares shares	Oct. 31, 2010 stock_option_plan	Aug. 11, 2008 $ / shares shares	Jan. 30, 2016 USD ($) $ / shares shares		Jan. 31, 2015 USD ($) $ / shares shares	Feb. 01, 2014 shares	Jan. 29, 2011 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock shares authorized					1,000,000		1,000,000	1,000,000
Preferred stock shares issued					0		0	0
Treasury stock shares					898,249		898,249	898,249
Treasury stock value | $					$ 8,577		$ 8,577
Treasury shares repurchased during period					0		0
Initial common stock reserved under stock option plan (shares)									1,000,000
Automatic increase in common stock authorized under stock option plan (percentage)							1.50%
Current common stock reserved under stock option plan (shares)					1,961,898
Previous number of stock option plans | stock_option_plan			2
Stock options granted (shares)					829,252
Share-based compensation expense | $					$ 297		$ 957
Weighted average estimated fair values of options granted during period | $ / shares					$ 2.96		$ 3.99
Unrecognized compensation expense related to stock options that will vest during next fiscal period | $					$ 100
Expected weighted-average recognition period							1 year
Aggregate intrinsic value of options exercised during period | $					42		$ 288
Cash received from option exercises during period | $					$ 57		$ 396
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (shares)	[1]				25,000
Warrants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Warrants to purchase common stock issued (shares)		4,805,304		1,500,000	0	[2]
Exercise price of warrants granted (usd per share) | $ / shares		$ 8.00		$ 23.94	$ 0.00	[2]

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