Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013
Statement Of Financial Position [Abstract]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	30,000,000	195,000,000
Common stock, shares issued	13,388,712	13,319,715
Common stock, shares outstanding	13,356,210	13,287,213
Treasury stock, shares	32,502	32,502
Due to related party, current portion of long-term debt		$ 274
Due to related party, long-term debt, net of current portion		$ 499