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. 28, 2017 USD ($) $ / shares shares		Jan. 30, 2016 USD ($) $ / shares shares	Jan. 31, 2015 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	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)					2,194,305
Previous number of stock option plans | stock_option_plan			2
Stock options granted (shares)					1,030,053
Share-based compensation expense | $					$ 87		$ 297
Weighted average estimated fair values of options granted during period | $ / shares					$ 1.54		$ 2.96
Unrecognized compensation expense related to stock options that will vest during next fiscal period | $					$ 600
Expected weighted-average recognition period					4 years 6 months
Aggregate intrinsic value of options exercised during period | $							$ 42
Cash received from option exercises during period | $							$ 57
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (shares)	[1]				410,000
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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