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Earnings per share (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Earnings per share |  |  |
Net income from continuing operations attributable to Consolidated Water Co. Ltd. stockholders | $ 17,882,370 | $ 30,672,135 | $ 8,227,343
Less: preferred stock dividends | (18,595) | (15,513) | (11,532)
Net income from continuing operations available to common shares in the determination of basic earnings per common share | 17,863,775 | 30,656,622 | 8,215,811
Income (loss) from discontinued operations | 10,355,184 | (1,086,744) | (2,371,049)
Net income available to common shares in the determination of basic earnings per common share | $ 28,218,959 | $ 29,569,878 | $ 5,844,762
Weighted average number of common shares in the determination of basic earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders (in shares) | 15,832,328 | 15,739,056 | 15,290,509
Weighted average number of preferred shares outstanding during the period (in shares) | 44,257 | 39,885 | 31,885
Potential dilutive effect of unexercised options and unvested stock grants | 59,377 | 86,956 | 79,259
Weighted average number of shares used for determining diluted earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders | 15,935,962 | 15,865,897 | 15,401,653

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