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Earnings Per Common Share (Weighted Average Number Of Shares Used In Computing Earnings Per Share) (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount     0  
Average number of common shares outstanding 3,527,725 3,503,412 3,532,893 3,489,388
Effect of dilutive common stock 0 0 0 0
Average number of common shares outstanding used to calculate diluted earnings per share 3,527,725 3,503,412 3,532,893 3,489,388