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Equity Plan (Narrative) (Details) - USD ($)
12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares authorized under 2015 Equity Incentive Plan 1,500,000  
Awards granted under 2015 Equity Incentive Plan 66,226 890,576
Vesting period 4 years 4 years
Unrecognized compensation expense, net of estimated forfeitures, related to non-vested restricted stock $ 15,600,000  
Unrecognized compensation expense, net of estimated forfeitures, related to non-vested restricted stock, Period 17 years 7 months 6 days  
Share-based compensation expense $ 1,575,000 $ 421,000
Grant date fair value of restricted stock 2,500,000 $ 15,100,000
Fair value of stock vested $ 707,000  
Restricted stock [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock vested 53,700  
Common Stock [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock vested 20,918  
Minimum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Remaining vesting period 10 years 10 years
Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Remaining vesting period 29 years 24 years