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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, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Numerator:        
Net income $ 1,419 $ 1,792 $ 2,828 $ 3,670
Denominator:        
Weighted average common shares outstanding (basic) 17,052 17,476 17,047 17,527
Effect of stock options 4 84 23 84
Weighted average common shares outstanding (diluted) 17,056 17,560 17,070 17,611
Earnings per common share:        
Basic $ 0.08 $ 0.10 $ 0.17 $ 0.21
Diluted $ 0.08 $ 0.10 $ 0.17 $ 0.21