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Schedule of Shares Used in Calculation of Basic and Diluted Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Earnings per share:        
Net earnings $ 3,012 $ 3,362 $ 5,790 $ 6,719
Weighted average common shares outstanding - basic [1] 5,471,724 5,476,354 5,470,839 5,475,075
Assumed exercise of stock options [1] 2,612 4,174 3,763 5,673
Weighted average common shares outstanding - diluted [1] 5,474,336 5,480,528 5,474,602 5,480,748
Basic [1],[2] $ 0.55 $ 0.61 $ 1.06 $ 1.23
Diluted [1],[2] $ 0.55 $ 0.61 $ 1.06 $ 1.23
[1] Share and per share values for the periods ended June 30, 2023 have been adjusted to give effect to the 5% stock dividend paid during December 2023.
[2] Per share amounts for the periods ended June 30, 2023 have been adjusted to give effect to the 5% stock dividend paid during 2023.