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Note 12. Investments - Investments-Convertible Debt and Non-Marketable Equity Securities Textuals (Details) (USD $)
12 Months Ended 12 Months Ended
Jun. 30, 2011
Convertible Debt Securities
Jun. 30, 2010
Convertible Debt Securities
Jun. 30, 2012
Common Stock
Jun. 30, 2010
Convertible Debt Securities
Jun. 30, 2011
Preferred Stock
Jun. 30, 2012
Common Stock
Schedule of Securities            
Payments to Acquire Investments       $ 2,300,000    
Convertible Debt Securities, Interest Rate   8.00%        
Impairment losses recognized in earnings 1,200,000   700,000      
Earnings Impact, Conversion of Convertible Notes 0          
Non-marketable Securities, carrying value         $ 1,800,000 $ 1,100,000