Statements of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Common stock [Member]	Additional paid-in capital [Member]	Retained earnings [Member]	Total
Balance at Jan. 31, 2010	$ 1	$ 39,313	$ 68,924	$ 106,694
Balance ( in shares) at Jan. 31, 2010	3,797,947
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (loss)	0	0	(4,635)	(4,635)
Options exercised to purchase shares	0	0	0	0
Options exercised to purchase shares (in shares)	43,948
Expired stock options	0	374	0	374
Share-based compensation	0	316	0	316
Balance (Change in accounting principle [Member])	0	0	(1,620)	(1,620)
Balance (As adjusted [Member])	1	40,003	62,669	102,673
Balance at Jan. 30, 2011	1	40,003	64,289	104,293
Balance (in shares) (As adjusted [Member])	3,841,895
Balance (in shares) at Jan. 30, 2011	3,841,895			3,841,895
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (loss)	0	0	1,655
Options exercised to purchase shares	0	0	0
Options exercised to purchase shares (in shares)	850
Expired stock options	0	(145)	0
Share-based compensation	0	257	0
Balance at Jan. 29, 2012	$ 1	$ 40,115	$ 64,324	$ 104,440
Balance (in shares) at Jan. 29, 2012	3,842,745			3,842,745