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Earnings per share (Tables) | 3 Months Ended
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Mar. 31, 2015
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | The following summarizes information related to the computation of basic and diluted EPS for the three months ended March 31, 2015 and 2014.
|  | Three Months Ended March 31, |
|  | 2015 |  | 2014 |
Net income attributable to Consolidated Water Co. Ltd. Common stockholders |  | $ | 1,921,261 |  | $ | 654,909 |
Less: preferred stock dividends |  |  | (2,763) |  |  | (2,806) |
Net income available to common shares in the determination of basic earnings per common share |  | $ | 1,918,498 |  | $ | 652,103 |
Weighted average number of common shares in the determination of basic earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders |  |  | 14,718,757 |  |  | 14,686,744 |
Plus: |  |  |  |  |  |  |
Weighted average number of preferred shares outstanding during the period |  |  | 36,840 |  |  | 37,408 |
Potential dilutive effect of unexercised options |  |  | 8,572 |  |  | 42,833 |
Weighted average number of shares used for determining diluted earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders |  |  | 14,764,169 |  |  | 14,766,985 |

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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/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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