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EARNINGS PER SHARE (Tables) | 6 Months Ended
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Jun. 30, 2021
EARNINGS PER SHARE |
Schedule of earnings per common share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Six Months Ended | ​
​ | ​ | June 30, | ​ | June 30, | ​
​ |  | 2021 |  | 2020 |  | 2021 |  | 2020 |
Basic and diluted earnings per share: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income | ​ | $ | 479,657 | ​ | $ | (96,000) | ​ | $ | 1,073,650 | ​ | $ | 173,793 | ​
Weighted average common shares outstanding | ​ |  | 2,847,191 | ​ |  | 2,832,974 | ​ |  | 2,845,493 | ​ |  | 2,831,174 | ​
Basic and dilutive net income per share | ​ | $ | 0.17 | ​ | $ | (0.03) | ​ | $ | 0.38 | ​ | $ | 0.06 | ​

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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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