Unaudited Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net income	$ 3,935	$ 3,273	$ 6,954	$ 6,258
Foreign currency translation adjustments	436	869	(2,388)	3,561
Changes in market value of investments:
Changes in unrealized gains (losses), net of income taxes of $31 and $76 for the three and six months ended September 30, 2016, respectively, and net of income taxes of $(124) and $(202) for the three and six months ended September 30, 2015, respectively	47	(185)	132	(302)
Reclassification adjustment for net losses (gains) realized in net income, net of income taxes of $(80) and $(19) for the three and six months ended September 30, 2016, respectively and net of income taxes of $182 for the three and six months ended September 30, 2015	(121)	272	(31)	272
Net change in market value of investments	(74)	87	101	(30)
Total comprehensive income (loss)	$ 4,297	$ 4,229	$ 4,667	$ 9,789