Consolidated Statements of Comprehensive Loss (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Net loss	$ (10,183)	$ (9,313)	$ (17,579)
Other comprehensive income before income taxes
Unrealized gains on available for sale investments for supplemental executive retirement plan	143	129	19
Reclassification adjustment realized in net loss, included in Other Income (Expense)	(43)
Other comprehensive income, before income taxes	100	129	19
Income taxes related to components of other comprehensive income			8
Other comprehensive income, net of income taxes	100	129	11
Total comprehensive loss	$ (10,083)	$ (9,184)	$ (17,568)