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Summary of Significant Accounting Policies - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Accounting Policies [Abstract]      
Net earnings available to common shareholders $ 10,662 $ 10,426 $ 4,369
Weighted average common shares outstanding - basic 4,592,655 4,568,205 4,481,984
Assumed exercise of stock options 13,841 15,908 77,880
Weighted average common shares outstanding - diluted 4,606,496 4,584,113 4,559,864
Basic [1] $ 2.32 $ 2.28 $ 0.97
Diluted [1] $ 2.31 $ 2.27 $ 0.96
[1] All per share amounts have been adjusted to give effect to the 5% stock dividends paid during December 2019, 2018 and 2017.