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Income Per Common Share (Computation Of Basic And Diluted Income Per Common Share) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Net income $ 2,223 $ 2,541
Net income allocated to participating securities (44) (48)
Net income allocated to common shareholders $ 2,179 $ 2,493
Basic weighted-average common shares outstanding 32,439 31,029
Basic income per common share $ 0.07 $ 0.08
Net income allocated to participating securities, diluted $ (43) $ (47)
Net income allocated to common shareholders, diluted $ 2,180 $ 2,494
Effect of dilutive stock options and awards [1] 1,165 742
Diluted weighted-average common shares outstanding 33,604 31,771
Diluted income per common share $ 0.06 $ 0.08
Stock Options [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded from computation of earnings per share 116 838
[1] The Company excluded stock options from the calculation of diluted weighted-average common shares outstanding if the per share value, including the sum of (i) the exercise price of the options and (ii) the amount of the compensation cost attributed to future services and not yet recognized, was greater than the average market price of the shares because the inclusion of these stock options would be antidilutive to income per common share. Accordingly, stock options to purchase a weighted-average 116,000 shares for the three months ended March 31, 2017 and 838,000 shares for the three months ended March 31, 2016, were excluded from the calculation of diluted weighted-average common shares outstanding.