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Earnings Per Share (Weighted Average Common Shares Outstanding) (Details) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Earnings Per Share [Abstract]        
Weighted average common shares outstanding (shares) 12,352,271 12,317,546 12,344,684 12,311,810
Dilutive effect of employee stock options and nonvested share awards (shares)
Weighted average diluted common shares outstanding (shares) 12,352,271 12,317,546 12,344,684 12,311,810