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Stock-Based Compensation (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2010
Stock option activity and related information      
Number of options beginning balance 292,180    
Number of options granted 282,450    
Number of options exercised (26,500) (32,000) (31,900)
Number of options cancelled (57,090)    
Number of options Ending balance 491,040 292,180  
Number of options vested or expected to vest 484,484    
Number of options exercisable 265,640    
Weighted average remaining contractual life 5 years 6 months 3 years 2 months 12 days  
Weighted average remaining contractual life vested or expected to vest 5 years 6 months    
Weighted average remaining contractual life exercisable 2 years 3 months 18 days    
Weighted average exercise price beginning balance $ 8.34    
Weighted average exercise price granted $ 10.19    
Weighted average exercise price exercised $ 6.29    
Weighted average exercise price cancelled $ 10.27    
Weighted average exercise price ending balance $ 9.29 $ 8.34  
Weighted average exercise price vested or expected to vest $ 9.28    
Weighted average exercise price exercisable $ 8.53    
Aggregate intrinsic value exercised $ 120 $ 200 $ 200
Aggregate intrinsic value outstanding 1,002    
Aggregate intrinsic value vested or expected to be vest 993    
Aggregate intrinsic value exercisable $ 744