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Stock-Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2008
Jun. 30, 2017
Share-based Compensation [Abstract]        
Options exercised during period, total intrinsic value   $ 997    
Stock Option [Member]        
Share-based Compensation [Abstract]        
Options outstanding (in shares)       37,770
Exercised (in shares)   (37,770)    
2008 Stock Option Plan [Member]        
Share-based Compensation [Abstract]        
Number of shares authorized under the plan (in shares) 360,000      
Options granted (in shares)     329,000  
Options, exercise price (in dollars per share)     $ 6.25  
Options, expected term 10 years      
Award vesting period 3 years