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Net Income (Loss) Per Share (Tables) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020
Earnings Per Share [Abstract] |  |
Schedule of net income (loss) per share |
|  | Three Months Ended March 31,
|  | 2021 |  | 2020
Net income (loss) from operations – basic and diluted |  | $ | 916,729 |  | $ | (438,384 | )
Weighted average shares outstanding – basic |  |  | 6,906,454 |  |  | 6,873,571 |
Weighted average shares outstanding – diluted |  |  | 6,906,454 |  |  | 6,873,571 |
Per share data: |  |  |  |  |  |  |
Basic from operations |  | $ | 0.13 |  | $ | (0.06 | )
Diluted from operations |  | $ | 0.13 |  | $ | (0.06 | )
|  | Years Ended December 31,
|  | 2020 |  | 2019
Net income (loss) from continuing operations – basic and diluted |  | $ | 1,371,262 |  | $ | (8,380,060 | )
Total weighted average shares outstanding – basic |  |  | 6,884,690 |  |  | 6,873,652 |
Dilutive potential options |  |  | 3,118 |  |  | — |
Total weighted average shares outstanding – diluted |  |  | 6,887,808 |  |  | 6,873,652 |
Per share data: |  |  |  |  |  |  |
Basic from continuing operations |  | $ | 0. 20 |  | $ | (1.22 | )
Diluted from continuing operations |  | $ | 0. 20 |  | $ | (1.22 | )

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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