Note 5. Commitments and Contingent Liabilities - Leases Textuals (Details) - USD ($)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Operating Leased Assets
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 3,400,000
Operating Leases, Future Minimum Payments, Due in Two Years	3,000,000
Operating Leases, Future Minimum Payments, Due in Three Years	2,600,000
Operating Leases, Future Minimum Payments, Due in Four Years	2,500,000
Operating Leases, Future Minimum Payments, Due in Five Years	2,400,000
Operating Leases, Future Minimum Payments, Due Thereafter	6,500,000
Rental expenses	6,700,000	$ 4,900,000	$ 4,100,000
Contingent lease payments	2,400,000	1,000,000	$ 800,000
Performance Guarantee
Operating Leased Assets
Loss Contingency Accrual	0	0
Financial Standby Letter of Credit
Operating Leased Assets
Loss Contingency Accrual	$ 0	$ 0