Earnings per share (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings per share
Net income from continuing operations attributable to Consolidated Water Co. Ltd. stockholders	$ 2,709,719	$ (1,513,270)	$ 5,033,848	$ (211,704)
Less: preferred stock dividends	(3,250)	(3,175)	(5,684)	(5,734)
Net income from continuing operations available to common shares in the determination of basic earnings per common share	2,706,469	(1,516,445)	5,028,164	(217,438)
Loss from discontinued operations	(419,833)	(151,379)	(1,027,147)	(464,173)
Net income available to common shares in the determination of basic earnings per common share	$ 2,286,636	$ (1,667,824)	$ 4,001,017	$ (681,611)
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)	15,285,523	15,201,682	15,285,523	15,201,571
Weighted average number of preferred shares outstanding during the period (in shares)	29,049		28,843
Potential dilutive effect of unexercised options and unvested stock grants	121,849		121,590
Weighted average number of shares used for determining diluted earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders	15,436,421	15,201,682	15,435,956	15,201,571