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Organization and Summary of Significant Accounting Policies (Stock Repurchases) (Details) - $ / shares
3 Months Ended 12 Months Ended
Apr. 26, 2018
Sep. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Class of Stock [Line Items]          
Shares Paid for Tax Withholding for Share Based Compensation     3,291    
Employee Stock Option [Member]          
Class of Stock [Line Items]          
Stock repurchased during period (in shares)   4,500      
Restricted Stock [Member]          
Class of Stock [Line Items]          
Stock repurchased during period (in shares)     3,291 25,598 3,090
Common Stock          
Class of Stock [Line Items]          
Stock repurchased during period (in shares)     383,585    
Stock repurchased during period (in dollars per share)     $ 19.00    
Common Stock | April 2018 Stock Repurchase Plan [Member]          
Class of Stock [Line Items]          
Stock repurchased during period (in shares) 373,000        
Stock Repurchase Program, Percent of Shares Authorized to be Repurchased 5.00%