Condensed Consolidated Statements of Comprehensive (Loss) Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2015	Jul. 31, 2014
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (5,848)	$ (3,347)	$ (6,085)	$ 390
Change in cumulative translation adjustment	(4,393)	277	(1,646)	1,547
Comprehensive (loss) income	$ (10,241)	$ (3,070)	$ (7,731)	$ 1,937