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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
Mar. 31, 2015
Jun. 30, 2014
CONSOLIDATED BALANCE SHEETS    
Common stock, par value (in dollars per share) $ 0.001us-gaap_CommonStockParOrStatedValuePerShare $ 0.001us-gaap_CommonStockParOrStatedValuePerShare
Common stock, authorized shares 100,000,000us-gaap_CommonStockSharesAuthorized 100,000,000us-gaap_CommonStockSharesAuthorized
Common stock, issued shares 36,651,983us-gaap_CommonStockSharesIssued 36,088,272us-gaap_CommonStockSharesIssued
Common stock, outstanding shares 36,134,991us-gaap_CommonStockSharesOutstanding 35,571,280us-gaap_CommonStockSharesOutstanding
Treasury stock, shares 516,992us-gaap_TreasuryStockShares 516,992us-gaap_TreasuryStockShares