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Earnings Per Common Share (EPS) (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Sep. 30, 2021
Sep. 30, 2020
Basic Earnings Per Share Computation:                
Net income $ 534,884 $ (204,731) $ 585,424 $ 1,066,963 $ 488,627 $ 483,888 $ 915,577 $ 2,039,478
Weighted average number of common shares 9,129,406     8,450,843     9,066,088 8,409,114
Basic earnings per share $ 0.06     $ 0.13     $ 0.10 $ 0.24
Diluted Earnings Per Share Computation:                
Net income $ 534,884     $ 1,066,963     $ 915,577 $ 2,039,478
Weighted average number of common shares 9,129,406     8,450,843     9,066,088 8,409,114
Incremental shares from assumed conversions of dilutive securities 28,990     76,466     116,102 54,447
Adjustments weighted-average number of common shares 9,158,396     8,527,309     9,182,190 8,463,561
Diluted earnings per share $ 0.06     $ 0.13     $ 0.10 $ 0.24