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Share-based Compensation - Restricted Stock Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2016
Mar. 31, 2016
Mar. 31, 2015
Jun. 30, 2015
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]        
Shares Awarded, Beginning balance   47,082    
Restricted stock granted   9,638    
Shares Awarded, Exercised/Released   (24,841)    
Shares Awarded, Cancelled/Forfeited   (8,619)    
Shares Awarded, Ending balance 23,260 23,260   47,082
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]        
Weighted Average Grant Date Fair Value, Beginning balance   $ 16.48    
Restricted stock, granted, weighted average fair value (in dollars per share)   29.91    
Weighted Average Grant Date Fair Value, Exercised/Released   14.08    
Weighted Average Grant Date Fair Value, Cancelled/Forfeited   13.06    
Weighted Average Grant Date Fair Value, Ending balance $ 25.88 $ 25.88   $ 16.48
Share-based Compensation Arrangement by Share-based Payment Award, Equity instruments Other Than Options, Grants in Period, Weighted Average Remaining Contractual Term   3 years    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Intrinsic Value [Roll Forward]        
Aggregate Intrinsic Value, Beginning Balance   $ 1,106    
Aggregate Intrinsic Value, Exercised/Released   747    
Aggregate Intrinsic Value, Granted   288    
Aggregate Intrinsic Value, Cancelled/Forfeited   0    
Aggregate Intrinsic Value, Ending Balance $ 648 $ 648   $ 1,106
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]        
Weighted Average Remaining Life, Beginning balance   2 years 1 month 6 days   1 year 2 months 12 days
Weighted Average Remaining Life, Ending balance   2 years 1 month 6 days   1 year 2 months 12 days
Vested and Expected to Vest, Outstanding, Number 21,569 21,569    
Vested and Expected to Vest, Weighted Average Exercise Price $ 25.79 $ 25.79    
Vested and Expected to Vest, Weighted Average Remaining Life   2 years 1 month 6 days    
Vested and Expected to Vest, Aggregate Intrinsic Value $ 601 $ 601    
Shares withheld for tax purposes   5,177    
Allocated share-based compensation expense $ 100 $ 100 $ 200  
Weighted average award recognition period 2 years 2 months 12 days      
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]        
Unrecognized compensation cost related to restricted stock $ 500 $ 500   $ 500