| Summary calculations of basic and diluted income (loss) per common share |
| | | | | | | | | | | | | | | For the Three Months Ended | | For the Six Months Ended | | | June 30, | | June 30, | | | 2021 | | 2020 | | 2021 | | 2020 | Numerator: | | | | | | | | | | | | | Net loss attributable to common shareholders | | $ | (700,099) | | $ | (799,877) | | $ | (1,722,145) | | $ | (1,865,764) | | | | | | | | | | | | | | Denominator: | | | | | | | | | | | | | Weighted average Class A common shares outstanding | | | 3,570,826 | | | 1,906,570 | | | 3,369,293 | | | 1,854,503 | Weighted average Class B common shares outstanding | | | 81,198 | | | 81,198 | | | 81,198 | | | 81,198 | Weighted average Class A and Class B common shares outstanding - Basic | | | 3,652,024 | | | 1,987,768 | | | 3,450,491 | | | 1,935,701 | Dilutive effect of potential common shares | | | — | | | — | | | — | | | — | Weighted average Class A and Class B common shares outstanding - Diluted | | | 3,652,024 | | | 1,987,768 | | | 3,450,491 | | | 1,935,701 | | | | | | | | | | | | | | Net loss per share attributable to Class A and Class B Common shareholders - Basic | | $ | (0.19) | | $ | (0.40) | | $ | (0.50) | | $ | (0.96) | Net loss per share attributable to Class A and Class B Common shareholders - Diluted | | $ | (0.19) | | $ | (0.40) | | $ | (0.50) | | $ | (0.96) |
|