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Earnings Per Common Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Numerator:        
Net income $ 1,389 $ 1,362 $ 2,737 $ 95
Preferred stock dividends 0 0 0 (15)
Net income available to common shareholders $ 1,389 $ 1,362 $ 2,737 $ 80
Denominator:        
Weighted average common shares outstanding (basic) 18,580 18,897 18,696 18,890
Effect of stock options 119 51 112 53
Weighted average common shares outstanding (diluted) 18,699 18,948 18,808 18,943
Earnings per common share:        
Basic $ 0.07 $ 0.07 $ 0.15 $ 0.00
Diluted $ 0.07 $ 0.07 $ 0.15 $ 0.00