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Earnings per share (Tables) | 9 Months Ended
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Sep. 30, 2021
Earnings per share |
Schedule of computation of basic and diluted EPS | The following summarizes information related to the computation of basic and diluted EPS: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended September 30, |  | Nine Months Ended September 30,
​ |  | 2021 |  | 2020 |  | 2021 |  | 2020
Net income from continuing operations attributable to Consolidated Water Co. Ltd. stockholders | ​ | $ | 1,363,960 | ​ | $ | 1,812,156 | ​ | $ | 1,152,256 | ​ | $ | 7,644,398
Less: preferred stock dividends | ​ |  | (2,628) | ​ |  | (2,810) | ​ |  | (8,362) | ​ |  | (9,099)
Net income from continuing operations available to common shares in the determination of basic earnings per common share | ​ |  | 1,361,332 | ​ |  | 1,809,346 | ​ |  | 1,143,894 | ​ |  | 7,635,299
Total loss from discontinued operations | ​ |  | (1,078,367) | ​ |  | (377,321) | ​ |  | (1,542,540) | ​ |  | (4,448,798)
Net income (loss) available to common shares in the determination of basic earnings per common share | ​ | $ | 282,965 | ​ | $ | 1,432,025 | ​ | $ | (398,646) | ​ | $ | 3,186,501
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average number of common shares in the determination of basic earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders | ​ |  | 15,209,432 | ​ |  | 15,120,983 | ​ |  | 15,204,220 | ​ |  | 15,116,681
Plus: | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Weighted average number of preferred shares outstanding during the period | ​ |  | 31,861 | ​ |  | 34,191 | ​ |  | 30,701 | ​ |  | 34,355
Potential dilutive effect of unexercised options and unvested stock grants | ​ |  | 110,589 | ​ |  | 118,355 | ​ |  | 110,199 | ​ |  | 119,458
Weighted average number of shares used for determining diluted earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders | ​ |  | 15,351,882 | ​ |  | 15,273,529 | ​ |  | 15,345,120 | ​ |  | 15,270,494

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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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