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Share-based Compensation - Stock Options Outstanding and Exercisable (Details)
12 Months Ended
Jun. 30, 2019
$ / shares
shares
Price Range $7.21 - 7.21 [Member]  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Number Outstanding (in shares) | shares 6,875
Weighted-Average Remaining Contractual Life (Years) 4 years 6 months 29 days
Weighted-Average Exercise Price (in dollars per share) $ 7.21
Number Exercisable (in shares) | shares 6,875
Weighted-Average Exercise Price (in dollars per share) $ 7.21
Exercise price, lower range limit (in dollars per share) 7.21
Exercise price, upper range limit (in dollars per share) $ 7.21
Price Range $7.44 - 7.44 [Member]  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Number Outstanding (in shares) | shares 331,139
Weighted-Average Remaining Contractual Life (Years) 4 years 8 months 16 days
Weighted-Average Exercise Price (in dollars per share) $ 7.44
Number Exercisable (in shares) | shares 331,139
Weighted-Average Exercise Price (in dollars per share) $ 7.44
Exercise price, lower range limit (in dollars per share) 7.44
Exercise price, upper range limit (in dollars per share) $ 7.44
Price Range $7.56 - 9.90 [Member]  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Number Outstanding (in shares) | shares 195,150
Weighted-Average Remaining Contractual Life (Years) 3 years 8 months 16 days
Weighted-Average Exercise Price (in dollars per share) $ 8.93
Number Exercisable (in shares) | shares 195,150
Weighted-Average Exercise Price (in dollars per share) $ 8.93
Exercise price, lower range limit (in dollars per share) 7.56
Exercise price, upper range limit (in dollars per share) $ 9.90
Price Range $10.50 - 15.00 [Member]  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Number Outstanding (in shares) | shares 178,314
Weighted-Average Remaining Contractual Life (Years) 1 year 3 months 18 days
Weighted-Average Exercise Price (in dollars per share) $ 13.45
Number Exercisable (in shares) | shares 178,314
Weighted-Average Exercise Price (in dollars per share) $ 13.45
Exercise price, lower range limit (in dollars per share) 10.50
Exercise price, upper range limit (in dollars per share) $ 15.00
Price Range $17.90 - $18.00 (Member)  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Number Outstanding (in shares) | shares 165,000
Weighted-Average Remaining Contractual Life (Years) 9 months 29 days
Weighted-Average Exercise Price (in dollars per share) $ 17.99
Number Exercisable (in shares) | shares 165,000
Weighted-Average Exercise Price (in dollars per share) $ 17.99
Exercise price, lower range limit (in dollars per share) 17.90
Exercise price, upper range limit (in dollars per share) $ 18.00
Price Range $7.21 - 18.00 Member  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Number Outstanding (in shares) | shares 876,478
Weighted-Average Remaining Contractual Life (Years) 3 years 22 days
Weighted-Average Exercise Price (in dollars per share) $ 10.98
Number Exercisable (in shares) | shares 876,478
Weighted-Average Exercise Price (in dollars per share) $ 10.98
Exercise price, lower range limit (in dollars per share) 7.21
Exercise price, upper range limit (in dollars per share) $ 18.00