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Earnings Per Share (Weighted Average Common Shares Outstanding) (Details) - shares
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Earnings Per Share [Abstract]    
Weighted average common shares outstanding (shares) 12,318,861 12,285,566
Dilutive effect of employee stock options and nonvested share awards (shares)
Weighted average diluted common shares outstanding (shares) 12,318,861 12,285,566