Quarterly report pursuant to Section 13 or 15(d)

Equity Incentive Plan (Narrative) (Details)

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Equity Incentive Plan (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Number of shares authorized under 2015 Equity Incentive Plan 1,500,000  
Awards granted under 2015 Equity Incentive Plan 0 0
Unrecognized compensation expense, net of estimated forfeitures, related to non-vested restricted stock $ 15.1