Statement of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Statement of Income and Comprehensive Income [Abstract]
Net Income	$ 552	$ 1,189	$ 5,914	$ 9,553
Foreign currency translation adjustments	2,151	2,321	8,066	(346)
Changes in unrealized loss, net of taxes of $(101) and $(119) for the three and nine months ended December 31, 2013 and net of taxes of $(668) and $(461) for the three and nine months ended December 31, 2012	(188)	(1,241)	(224)	(856)
Reclassification adjustment for net losses (gains) realized in net income, net of taxes of $0 and $31 for the three and nine months ended December 31, 2013 and net of taxes of $0 and $(17) for the three and nine months ended December 31, 2012	0	0	(57)	31
Net change in market value of investments	(188)	(1,241)	(281)	(825)
Total comprehensive income	$ 2,515	$ 2,269	$ 13,699	$ 8,382