Unaudited Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net income	$ 3,273	$ 5,747	$ 6,258	$ 9,322
Foreign currency translation adjustments	869	(7,820)	3,561	(8,100)
Changes in market value of investments:
Changes in unrealized loss, net of tax benefits of $(124) and $(202) for the three and six months ended September 30, 2015, respectively and net of tax benefits of $(188) and $(342) for the three and six months ended September 30, 2014, respectively	(185)	$ (350)	(302)	(638)
Reclassification adjustment for net losses (gains) realized in net income, net of tax expenses of $182 for the three and six months ended September 30, 2015, respectively and net of tax expense (benefit) of $0 and $(11) for the three and six months ended September 30, 2014, respectively	272		272	(19)
Net change in market value of investments	87	$ (350)	(30)	(657)
Total comprehensive income (loss)	$ 4,229	$ (2,423)	$ 9,789	$ 565