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Equity Incentive Plan (Schedule of stock option fair value assumptions) (Details) - Stock option
3 Months Ended
Mar. 31, 2020
$ / shares
August 16, 2018  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected volatility 12.44%
Risk-free interest rate 2.87%
Expected life (in years) 10 years
Exercise price for the stock options $ 12.48
September 18, 2018  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected volatility 11.94%
Risk-free interest rate 3.05%
Expected life (in years) 10 years
Exercise price for the stock options $ 12.45