Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details)

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Fair Value Measurements (Details) (Fair Value, Measurements, Recurring, USD $)
9 Months Ended
Mar. 31, 2013
Mar. 31, 2013
Fair Value, Inputs, Level 1
Jun. 30, 2012
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash and cash equivalents   $ 14,516,000 $ 41,215,000
Cash 3,900,000    
Cash equivalents $ 10,700,000    
Cash Equivalent, Maturity Period 90 days