Annual report pursuant to Section 13 and 15(d)

Stock Based Compensation - Fair Value of Shares Issued Under the Stock Plan and Weighted-Average Assumptions (Details)

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Stock Based Compensation - Fair Value of Shares Issued Under the Stock Plan and Weighted-Average Assumptions (Details) (USD $)
12 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of options 1,675,000 1,750,000 637,500
Weighted-average grant date fair value per share $ 0.66 $ 1.10 $ 0.85
Expected dividend $ 0.00 $ 0.00 $ 0.00
Stock options
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected volatility, Minimum 61.20% 55.20% 6.20%
Expected volatility, Maximum 62.80% 61.50% 62.50%
Stock options | Minimum
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Risk free interest rate 1.00% 1.60% 2.40%
Expected life 5 years 3 months 17 days 5 years 5 years 9 months 17 days
Stock options | Maximum
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Risk free interest rate 1.30% 2.40% 2.60%
Expected life 6 years 6 years 5 years 9 months 17 days