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Stock-Based Compensation (Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity) (Details) - Restricted Stock - $ / shares
6 Months Ended 12 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]    
Beginning period, nonvested number of shares (in shares) 14,440 25,473
Granted (in shares) 9,065 6,524
Vested (in shares) (5,473) (17,557)
Cancelled (in shares) (359)  
Ending period, nonvested number of shares (in shares) 17,673 14,440
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]    
Beginning period, weighted average grant date fair value, nonvested number of shares (in dollars per share) $ 25.79 $ 28.76
Weighted average grant date fair value, granted (in dollars per share) 33.42 31.82
Weighted average grant date fair value, vested (in dollars per share) $ 34.08 25.83
Weighted average grant date fair value, cancelled (in dollars per share) 33.66  
Ending period, weighted average grant date fair value, nonvested number of shares (in dollars per share) $ 33.01 $ 25.79