Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2021	Mar. 24, 2022	Jun. 30, 2021
Document and Entity Information
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Document Transition Report	false
Entity File Number	0-25248
Entity Registrant Name	CONSOLIDATED WATER CO. LTD.
Entity Incorporation, State or Country Code	KY
Entity Tax Identification Number	98-0619652
Entity Address, Address Line One	Regatta Office Park
Entity Address, Address Line Two	Windward Three, 4th Floor, West Bay Road
Entity Address, Address Line Three	P.O. Box 1114
Entity Address, City or Town	Grand Cayman
Entity Address, Postal Zip Code	KY1-1102
Entity Address, Country	KY
City Area Code	345
Local Phone Number	945-4277
Title of 12(b) Security	Common Stock
Security Exchange Name	NASDAQ
Trading Symbol	CWCO
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Auditor Name	Marcum LLP
Auditor Firm ID	688
Auditor Location	West Palm Beach, Florida
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		15,267,104
Entity Central Index Key	0000928340
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Public Float			$ 169,038,813