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Earnings per share (Tables) | 6 Months Ended
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Jun. 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 June 30, |  | Six Months Ended June 30,
​ |  | 2021 |  | 2020 |  | 2021 |  | 2020
Net income (loss) from continuing operations attributable to Consolidated Water Co. Ltd. stockholders | ​ | $ | (1,513,270) | ​ | $ | 2,627,270 | ​ | $ | (211,704) | ​ | $ | 5,832,242
Less: preferred stock dividends | ​ |  | (3,175) | ​ |  | (3,420) | ​ |  | (5,734) | ​ |  | (6,289)
Net income (loss) from continuing operations available to common shares in the determination of basic earnings per common share | ​ |  | (1,516,445) | ​ |  | 2,623,850 | ​ |  | (217,438) | ​ |  | 5,825,953
Total loss from discontinued operations | ​ |  | (151,379) | ​ |  | (3,755,112) | ​ |  | (464,173) | ​ |  | (4,071,477)
Net income (loss) available to common shares in the determination of basic earnings per common share | ​ | $ | (1,667,824) | ​ | $ | (1,131,262) | ​ | $ | (681,611) | ​ | $ | 1,754,476
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average number of common shares in the determination of basic earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders | ​ |  | 15,201,682 | ​ |  | 15,114,506 | ​ |  | 15,201,571 | ​ |  | 15,114,506
Plus: | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Weighted average number of preferred shares outstanding during the period | ​ |  | — | ​ |  | 35,126 | ​ |  | — | ​ |  | 34,438
Potential dilutive effect of unexercised options and unvested stock grants | ​ |  | — | ​ |  | 119,702 | ​ |  | — | ​ |  | 120,231
Weighted average number of shares used for determining diluted earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders | ​ |  | 15,201,682 | ​ |  | 15,269,334 | ​ |  | 15,201,571 | ​ |  | 15,269,175

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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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