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Earnings Per Share (Schedule of Weighted Average Shares Outstanding Used in the Computations of Basic and Diluted Earnings Per Share) (Details) - shares
shares in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Earning Per Share    
Weighted average shares outstanding 6,293 6,256
Less: Unvested restricted shares (34) (31)
Basic EPS weighted average shares outstanding 6,259 6,225
Add: Dilutive effect of stock options and restricted shares 50 54
Diluted EPS weighted average shares outstanding 6,309 6,279