Consolidated Statements of Shareholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Beginning balance at Jan. 31, 2010	$ 108,158	$ 119	$ 36,920	$ 86,884	$ 37	$ (15,802)
Beginning balance, shares at Jan. 31, 2010		11,944,544				2,480,706
Issuance of stock to directors	50		8			42
Issuance of stock to directors, shares						(6,525)
Purchase of treasury stock	(6,376)					(6,376)
Purchase of treasury stock, shares						939,795
Exercise of stock options, vesting of restricted stock units and other, net of taxes	420		(954)			1,374
Exercise of stock options, vesting of restricted stock units and other, net of taxes, shares						(212,982)
Other stock-based compensation	699		699
Net income (loss)	1,705			1,705
Other comprehensive income	70				70
Ending balance at Jan. 31, 2011	104,726	119	36,673	88,589	107	(20,762)
Ending balance, shares at Jan. 31, 2011		11,944,544				3,200,994
Issuance of stock to directors	40		(23)			63
Issuance of stock to directors, shares						(9,852)
Purchase of treasury stock	(1,992)					(1,992)
Purchase of treasury stock, shares						665,109
Exercise of stock options, vesting of restricted stock units and other, net of taxes	(166)		(1,437)			1,271
Exercise of stock options, vesting of restricted stock units and other, net of taxes, shares						(203,854)
Other stock-based compensation	1,018		1,018
Net income (loss)	(17,579)			(17,579)
Other comprehensive income	11				11
Ending balance at Jan. 31, 2012	86,058	119	36,231	71,010	118	(21,420)
Ending balance, shares at Jan. 31, 2012		11,944,544				3,652,397
Issuance of stock to directors	112					112
Issuance of stock to directors, shares						(19,416)
Purchase of treasury stock	(549)					(549)
Purchase of treasury stock, shares						243,800
Exercise of stock options, vesting of restricted stock units and other, net of taxes	(72)		(521)			449
Exercise of stock options, vesting of restricted stock units and other, net of taxes, shares						(78,750)
Other stock-based compensation	665		665
Dividends paid	(3,062)			(3,062)
Treasury dividends received				7
Net income (loss)	(9,313)			(9,313)
Other comprehensive income	129				129
Ending balance at Jan. 31, 2013	$ 73,975	$ 119	$ 36,375	$ 58,642	$ 247	$ (21,408)
Ending balance, shares at Jan. 31, 2013		11,944,544				3,798,031