Note 9. Income Taxes - Reconciliation of Effective Income Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Income Tax Reconciliation, Income Tax Expense (Benefit), Tax Computed at U.S. Federal Statutory Rate	$ 12,170	$ 10,585	$ 9,372
Effective Income Tax Rate Reconciliation, Tax Computed at U.S. Federal Statutory Rate	35.00%	35.00%	35.00%
Income Tax Reconciliation, State Income Taxes, Net of Federal Income Tax Benefit	$ 16	$ 210	$ 41
Effective Income Tax Rate Reconciliation, State Income Taxes, Net of Federal Income Tax Benefit	0.00%	0.70%	0.10%
Income Tax Reconciliation, Foreign Tax Effect	$ (4,336)	$ (3,800)	$ (3,645)
Effective Income Tax Rate Reconciliation, Foreign Tax Effect	(12.50%)	(12.60%)	(13.60%)
Effective Income Tax Rate Reconciliation, Impact of Foreign Exchange Rates, Amount	$ 1,274	$ 153	$ (72)
Effective Income Tax Rate Reconciliation Impact of Foreign Exchange Rates, Foreign, Percent	3.70%	0.50%	(0.30%)
Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Amount	$ (146)	$ (123)	$ (498)
Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Percent	(0.40%)	(0.40%)	(1.90%)
Income Tax Reconciliation, Valuation Allowance	$ 0	$ (1,521)	$ 388
Effective Income Tax Rate Reconciliation, Valuation Allowance	0.00%	(5.00%)	1.40%
Income Tax Reconciliation, Research Credit	$ (421)	$ (187)	$ (347)
Effective Income Tax Rate Reconciliation, Research Credit	(1.20%)	(0.60%)	(1.30%)
Income Tax Reconciliation, Spin-off costs	$ 625	$ 753	$ 0
Effective Income Tax Rate Reconciliation, Spin-off costs	1.80%	2.50%	0.00%
Income Tax Reconciliation, Other-Net	$ (616)	$ (441)	$ 17
Effective Income Tax Rate Reconciliation, Other-Net	(1.80%)	(1.50%)	0.20%
Total provision for income taxes	$ 8,566	$ 5,629	$ 5,256
Effective Income Tax Rate	24.60%	18.60%	19.60%
Income Tax Expense (Benefit), Valuation Allowance	$ 0	$ (1,521)	$ 388
Foreign Tax Authority
Income Tax Expense (Benefit), Valuation Allowance		(1,399)	408
State and Local Jurisdiction
Income Tax Expense (Benefit), Valuation Allowance		$ (122)	$ (20)