Operating Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net revenue	$ 50,942	$ 39,598	$ 98,834	$ 77,511
Net income (loss)	(1,892)	1,291	(2,364)	1,299
Americas
Net revenue	44,086	36,770	87,674	71,898
Net income (loss)	15	2,200	266	3,002
Europe
Net revenue	6,856	2,828	11,160	5,613
Net income (loss)	$ (1,907)	$ (909)	$ (2,630)	$ (1,703)