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Earnings per share (Tables) | 3 Months Ended
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Mar. 31, 2021
Earnings per share |
Schedule of earnings per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2021 | ​ | 2020 | ​
For the Three Months Ended March 31 | ​ | Basic | ​ | Diluted | ​ | Basic | ​ | Diluted | ​
Net income |  | $ | 9,478 |  | $ | 9,478 |  | $ | 5,281 | ​ | $ | 5,281 |
Average common shares outstanding | ​ |  | 7,210,952 | ​ |  | 7,246,016 | ​ |  | 7,379,438 | ​ |  | 7,405,703 | ​
Earnings per share | ​ | $ | 1.31 | ​ | $ | 1.31 | ​ | $ | 0.72 | ​ | $ | 0.71 | ​

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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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