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Earnings Per Common Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Numerator:        
Net income $ 1,078 $ 1,689 $ 3,906 $ 5,359
Denominator:        
Weighted average common shares outstanding (basic) 17,059 17,278 17,051 17,443
Effect of stock options 3 82 12 81
Weighted average common shares outstanding (diluted) 17,062 17,360 17,063 17,524
Earnings per common share:        
Basic $ 0.06 $ 0.10 $ 0.23 $ 0.31
Diluted $ 0.06 $ 0.10 $ 0.23 $ 0.31