Note 1. Summary of Significant Accounting Policies - Components of Non-operating income (expense), net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Foreign Currency/Derivative Gain (Loss)	$ 116	$ (124)	$ 230	$ (516)
Gain on Supplemental Employee Retirement Plan Investments	1,278	283	2,329	986
Impairment Loss on Privately-Held Investment	0	(735)	0	(735)
Gain (Loss) on Stock Warrants	(290)	(1,116)	(830)	(1,313)
Other	(227)	(143)	(438)	(269)
Non-operating income (expense), net	1,171	(1,470)	2,129	(1,286)
Non-Operating Income (Expense) | Stock Warrant
Gain (Loss) on Stock Warrants	$ 4	$ (751)	$ 8	$ (752)