Note 8. Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Unrecognized Tax Benefits, Beginning Balance	$ 2,499	$ 2,466	$ 2,165
Unrecognized Tax Benefits, Additions Resulting from Prior Period Tax Positions	250	312	532
Unrecognized Tax Benefits, Reductions Resulting from Prior Period Tax Positions	(84)	(77)	(130)
Unrecognized Tax Benefits, Additions Resulting from Current Period Tax Positions	0	96	74
Unrecognized Tax Benefits, Reductions Resulting from Current Period Tax Positions	0	(42)	0
Unrecognized Tax Benefits, Reductions Resulting from Settlements with Taxing Authorities	0	(74)	(36)
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations	(41)	(182)	(139)
Unrecognized Tax Benefits, Ending Balance	2,624	2,499	2,466
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 2,190	$ 2,125	$ 2,097