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Earnings per share (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Share [Line Items]
Net income attributable to Consolidated Water Co. Ltd. common stockholders	$ 8,594,519	$ 9,315,514	$ 6,113,218
Less: preferred stock dividends	(11,222)	(9,080)	(7,040)
Net income available to common shares in the determination of basic earnings per common share	$ 8,583,297	$ 9,306,434	$ 6,106,178
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)	14,633,884	14,578,518	14,560,259
Plus: Weighted average number of preferred shares outstanding during the period	34,827	27,057	19,892
Potential dilutive effect of unexercised options	35,169	573	15,862
Weighted average number of shares used for determining diluted earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders (in shares)	14,703,880	14,606,148	14,596,013

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