Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Option Activity Rollforward) (Details)

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Stockholders' Equity (Option Activity Rollforward) (Details) - USD ($)
 3 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Jun. 30, 2016
Equity [Abstract]      
Share-based compensation expense $ 191,460 $ 38,670  
Total compensation cost not yet recognized $ 2,600,000    
Period for recognition of nonvested awards (in years) 2 years 11 months 17 days    
Options      
Options, beginning balance (shares) 581,527    
Granted through stock option plan (shares) 100,000    
Cancellations, expirations and forfeitures (shares) (2,200)    
Options, ending balance (shares) 679,327    
Shares exercisable at end of the period 183,184    
Weighted Average Exercise Price Per Share      
Beginning balance (in dollars per share) $ 17.55    
Granted through stock option plan (in dollars per share) 19.22    
Cancellations, expirations and forfeitures (usd per share) 20.48    
Ending balance (in dollars per share) 17.79    
Shares exercisable at end of period (in dollars per share) $ 10.30    
Intrinsic value, balance $ 1,435,000   $ 1,466,000
Intrinsic Value, Shares exercisable at end of period $ 1,054,000    
Weighted Average per share Grant Date Fair Value, beginning balance (in dollars per share) $ 6.17   $ 6.32
Weighted Average per share Grant Date Fair Value, Shares exercisable at end of period (in dollars per share) $ 5.91