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INVESTMENTS (Details) (USD $)
3 Months Ended 12 Months Ended
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
INVESTMENTS      
Purchase of securities classified as available-for-sale $ 55,700,000 $ (53,806,000) $ 55,717,000
Realized loss on sale of available for sale securities   400,000  
Interest income earned over the life of investments   600,000  
Available-for-sale securities      
Amortized Cost 55,717,000   55,717,000
Unrealized gains (losses) (349,000)   (349,000)
Fair Value (net) 55,368,000   55,368,000
Debt securities
     
Available-for-sale securities      
Amortized Cost 55,717,000   55,717,000
Unrealized gains (losses) (349,000)   (349,000)
Fair Value (net) 55,368,000   55,368,000
US corporate debt securities
     
Available-for-sale securities      
Amortized Cost 55,717,000   55,717,000
Unrealized gains (losses) (349,000)   (349,000)
Fair Value (net) $ 55,368,000   $ 55,368,000