Earnings per share (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Earnings per share
Net income from continuing operations attributable to Consolidated Water Co. Ltd. Stockholders	$ 5,569,564	$ 4,957,318	$ 15,672,435	$ 16,141,143
Less: preferred stock dividends	(5,571)	(4,912)	(17,041)	(13,754)
Net income from continuing operations available to common shares in the determination of basic earnings per common share	5,563,993	4,952,406	15,655,394	16,127,389
Income (loss) from discontinued operations	(37,220)	(502,854)	(252,857)	10,637,926
Net income available to common shares in the determination of basic earnings per common share	$ 5,526,773	$ 4,449,552	$ 15,402,537	$ 26,765,315
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)	15,924,851	15,833,715	15,919,167	15,830,599
Weighted average number of preferred shares outstanding during the period (in shares)	43,687	45,118	42,644	44,494
Potential dilutive effect of unexercised options and unvested stock grants (in shares)	86,019	110,768	85,501	110,926
Weighted average number of shares used for determining diluted earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders (in shares)	16,054,557	15,989,601	16,047,312	15,986,019