Annual report pursuant to Section 13 and 15(d)

Stock Based Compensation - Additional Information (Details)

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Stock Based Compensation - Additional Information (Details) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2012
Director
Dec. 08, 2010
1998 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of shares authorized         7,205,000
Share-based compensation expense $ 1.6 $ 1.7 $ 2.3    
Maximum number of shares allowed to be issued each year       15,000  
Grants in period (in shares)       75,000