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Net Income (Loss) per Share | 3 Months Ended
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Mar. 31, 2021
Earnings Per Share [Abstract] |
Net Income (Loss) per Share | 13. Net Income (Loss) per Share We compute basic net income (loss) per share using the weighted average number of shares of common stock outstanding plus the number of common stock equivalents for DSUs during the period. We compute diluted net income (loss) per share using the weighted average number of shares of common stock outstanding during the period, adjusted for the dilutive effect of common stock equivalents. In periods where losses are reported, the weighted average number of shares of common stock outstanding excludes common stock equivalents because their inclusion would be anti-dilutive. Dilutive potential common shares consist of the incremental common shares issuable upon the exercise of outstanding stock options. Dilutive potential securities are excluded from the computation of earnings per share if their effect is antidilutive. The dilutive effect of outstanding stock options and warrants is reflected in diluted earnings per share by application of the treasury stock method. The computation of basic and diluted net income (loss) per share attributable to common stockholders is as follows:
| Three Months Ended March 31, |
| 2021 |  |  | 2020 |
| (Unaudited) |
Numerator: |  |  |  |  |  |  |
Net income (loss) applicable to common stockholders | $ | 1,146,740 |  |  | $ | (231,667 | )
Denominator: |  |  |  |  |  |  |
Weighted average common shares outstanding, basic |  | 18,504,993 |  |  |  | 15,396,703 |
Effect of dilutive common shares |  | 907,692 |  |  |  | — |
Weighted average common shares outstanding, diluted |  | 19,412,685 |  |  |  | 15,396,703 |
Net income (loss) per share: |  |  |  |  |  |  |
Basic | $ | 0.06 |  |  | $ | (0.02 | )
Diluted | $ | 0.06 |  |  | $ | (0.02 | )
Anti-dilutive securities excluded from diluted net income (loss) per share: |  |  |  |  |  |  |
Stock options |  | 984,768 |  |  |  | 2,936,635 |
Warrants |  | — |  |  |  | 521,060 |
Total anti-dilutive securities excluded from net income (loss) per share |  | 984,768 |  |  |  | 3,457,695 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257 + Details
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