Note 5. Long-Term Debt and Credit Facility - Textuals (Details)	12 Months Ended
	Jun. 30, 2012 USD ($)	Jun. 30, 2011 USD ($)	Jun. 30, 2010 USD ($)	Jun. 30, 2012 Primary Revolving Credit Facility USD ($)	Jun. 30, 2012 Primary Revolving Credit Facility Minimum	Jun. 30, 2012 Primary Revolving Credit Facility Maximum	Jun. 30, 2012 Thailand Revolving Credit Facility	Jun. 30, 2012 Poland Overdraft Credit Facility USD ($)	Jun. 30, 2012 Poland Overdraft Credit Facility EUR (€)
Long-term debt, less current maturities	$ 273,000	$ 286,000
Current maturities of long-term debt	14,000	12,000
Maturities of Long-Term Debt in the Next Twelve Months	14,000
Maturities of Long-term Debt in Year Two	15,000
Maturities of Long-term Debt in Year Three	16,000
Maturities of Long-term Debt in Year Four	18,000
Maturities of Long-term Debt in Year Five	19,000
Aggregate Maturities of Long-term Debt after Year Five	205,000
Credit Facility, Availability to Borrow				100,000,000				7,600,000	6,000,000
Credit Facility, Availability to Borrow Upon Request				150,000,000
Credit Facility, Commitment Fee Basis Points					12.5	15.0
Letters of Credit Outstanding				4,300,000
Interest Rate Charged Over Index Rate							0.75%	1.75%	1.75%
Interest Rate on Long-Term Debt	9.25%
Outstanding short-term borrowings	0	0
Interest Paid on Borrowings	$ 37,000	$ 121,000	$ 203,000