Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net income (loss)	$ 1,059	$ 5,469	$ (664)	$ 8,588
Other comprehensive income (loss):
Foreign currency translation gains (losses)	1,795	850	2,321	(1,727)
Net unrealized gains on marketable securities	31		10
Other comprehensive income (loss)	1,826	850	2,331	(1,727)
Comprehensive income	$ 2,885	$ 6,319	$ 1,667	$ 6,861