Consolidated Statements of Comprehensive Loss (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2013	Oct. 31, 2012
Net loss	$ (6,208)	$ (7,999)	$ (12,516)	$ (10,523)
Other comprehensive income before income taxes
Unrealized gains in investments available for sale in Supplemental Executive Retirement Plan	71	40	164	76
Reclassification adjustment realized in net loss, included in Other Income (Expense)	(43)		(43)
Other comprehensive income, before income taxes	28	40	121	76
Income taxes related to components of other comprehensive income
Other comprehensive income, net of income taxes	28	40	121	76
Total comprehensive loss	$ (6,180)	$ (7,959)	$ (12,395)	$ (10,447)