Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009	Jun. 30, 2008
Statutory U.S. income tax rate	35.00%
Undistributed earnings	$ 6,000,000
Liability for unrecognized tax benefits	5,897,000	5,189,000	11,945,000	4,612,000
Unrecognized tax benefit would impact the company's effective tax rate	2,000,000
Income tax expenses reduced	200,000	700,000
Long-Term Liabilities [Member]
Liability for unrecognized tax benefits	$ 5,100,000