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12) Capital Stock: Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2019
[1]
Sep. 30, 2019
[1]
Jun. 30, 2019
[1]
Mar. 31, 2019
[1]
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Details                    
Net Earnings (Loss)                 $ 10,893,519 $ 21,686,079
Weighted Average Number of Shares Outstanding, Basic and Diluted                 18,104,681 17,968,062
Employee stock options                 $ 124,435 $ 220,603
Pro Forma Weighted Average Shares Outstanding, Diluted                 124,435 220,603
Adjustedweighted average shares and assumed conversions                 18,229,116 18,188,665
Earnings Per Share, Basic $ 0.10 $ 0.20 $ 0.19 $ 0.11 $ (0.03) [1] $ 0.11 [1] $ 0.18 [1] $ 0.95 [1] $ 0.60 [2] $ 1.21 [2]
Earnings Per Share, Diluted $ 0.10 $ 0.20 $ 0.19 $ 0.11 $ (0.03) $ 0.11 $ 0.18 $ 0.94 $ 0.60 [2] $ 1.19 [2]
[1] Earnings per share amounts have been adjusted retroactively for the effect of annual stock dividends
[2] Earnings per share amounts have been adjusted retroactively for the effect of annual stock dividends. The weighted-average shares outstanding includes the weighted-average Class A common shares and the weighted-average Class C common shares determined on an equivalent Class A common stock basis. Net earnings per common share represent net earnings per equivalent Class A common share