Condensed Consolidated Statement of Shareholders' Equity - 9 months ended Oct. 31, 2015 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]
Balance, shares at Jan. 31, 2015		16,374,625			898,249
Balance at Jan. 31, 2015	$ 95,294	$ 164	$ 221,607	$ (117,900)	$ (8,577)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	217		217
Exercise of stock options, shares		17,387
Exercise of stock options	57		57
Net loss	(13,934)			(13,934)
Balance, shares at Oct. 31, 2015		16,392,012			898,249
Balance at Oct. 31, 2015	$ 81,634	$ 164	$ 221,881	$ (131,834)	$ (8,577)