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Net Income (Loss) Per Share (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
Numerator:                
Net income (loss) $ 643,626 $ 2,627,107 $ 202,902 $ (4,002,786) $ (768,023) $ (90,327) $ 3,473,635 $ (4,861,136)
   Net income (loss) allocated to restricted stock award (55,001)     264,275     (297,932) 263,128
   Adjusted net income (loss) for basic earnings per share 588,625     (3,738,511)     3,175,703 (4,598,008)
   Convertible note interest 43,560         132,315
   Adjusted net income (loss) before interest for diluted earnings per share $ 632,185     $ (3,738,511)     $ 3,308,018 $ (4,598,008)
Denominator: Weighted average shares outstanding used in computing net income (loss) per share:                
Basic 7,162,924     6,037,559     6,927,837 6,020,363
Effect of dilutive stock options 817,556         1,045,654
Effect of convertible note shares 958,904         958,904
Diluted 8,939,384     6,037,559     8,932,395 6,020,363
Net income (loss) per share applicable to common stockholders:                
Basic $ 0.08     $ (0.62)     $ 0.46 $ (0.76)
Diluted $ 0.07     $ (0.62)     $ 0.37 $ (0.76)