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Equity Incentive Plan - Activity (Details) - USD ($)
 12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Shares      
Outstanding at the beginning of the period (in shares) 1,356,528 2,350,175 2,914,593
Granted (in shares)     243,112
Exercised (in shares) (14,600) (425,180) (1,000)
Forfeited or canceled (in shares) (142,621) (568,467) (806,530)
Outstanding at the end of the period (in shares) 1,199,307 1,356,528 2,350,175
Weighted-Average Exercise Price      
Outstanding at the beginning of the period (in dollars per share) $ 20.19 $ 20.20 $ 20.33
Granted (in dollars per share)     13.43
Exercised (in dollars per share) 13.45 16.35 13.66
Forfeited or canceled (in dollars per share) 22.71 23.12 18.55
Outstanding at the end of the period (in dollars per share) $ 19.97 $ 20.19 $ 20.20
Additional information      
Weighted Average Remaining Contractual Life 3 years 6 months 18 days    
Aggregate Intrinsic Value $ 788,277    
Exercisable (in Shares) 1,091,801    
Stock options exercisable, Weighted Average Exercise Price (in dollars per share) $ 20.52    
Stock options exercisable, Average Remaining Contractual Life (Years) 3 years 4 months 28 days    
Stock options exercisable, Aggregate Intrinsic Value $ 549,397