XML 58 R80.htm IDEA: XBRL DOCUMENT v3.20.1
Stock-Based Compensation (Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity) (Details) - Restricted Stock [Member] - $ / shares
3 Months Ended 12 Months Ended
Mar. 31, 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
Number of shares, granted (in shares) 9,065 6,524
Number of shares, vested (in shares) (4,639) (17,557)
Number of shares, cancelled (in shares) (292) 0
Ending period, nonvested number of shares (in shares) 18,574 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) $ 33.66 $ 25.83
Weighted average grant date fair value, cancelled (in dollars per share) 32.84 0
Ending period, weighted average grant date fair value, nonvested number of shares (in dollars per share) $ 33.18 $ 25.79