CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities
Net income attributable to Consolidated Water Co. Ltd. stockholders	$ 875,579	$ 3,711,528
Income from continuing operations attributable to non-controlling interests	(632,915)	(730,005)
Net Income	1,508,494	4,441,533
Adjustments to reconcile net income to net cash provided by operating activities:
Impairment loss for Mexico assets - discontinued operations	963,540	3,351,842
Depreciation and amortization of discontinued operations	4,545	4,545
Foreign currency transaction adjustment - discontinued operations	53,039	3,528
Loss from discontinued operations	1,552,955	1,542,328
Depreciation and amortization	6,921,233	7,406,509
Deferred income tax benefit	(204,086)	(221,829)
Provision for doubtful accounts	0	129,107
Unrealized (gain) loss on net put/call option	(818,000)	26,000
Compensation expense relating to stock and stock option grants	977,232	1,163,261
Loss (gain) on asset dispositions and impairments, net	245,836	(13,997)
Profit-sharing and equity in earnings of OC-BVI	(78,259)	(506,694)
Distribution of earnings from OC-BVI	454,500	318,150
Impairment of goodwill	2,900,000
Change in:
Accounts receivable and contract assets	(5,878,771)	2,541,096
Inventory	293,254	(102,551)
Prepaid expenses and other assets	(711,615)	(629,734)
Accounts payable(including related parties), accrued expenses and other current liabilities, and contract liabilities	(112,598)	(480,456)
Operating lease liabilities	48,593
Deferred revenue	467,710	(1,700)
Net cash provided by operating activities - continuing operations	8,587,602	18,970,938
Net cash used in operating activities - discontinued operations	(1,621,292)	(1,635,646)
Net cash provided by operating activities	6,966,310	17,335,292
Cash flows from investing activities
Purchase of certificate of deposit	(2,500,000)
Additions to property, plant and equipment and construction in progress	(1,490,012)	(1,728,393)
Proceeds from asset dispositions	45,560	8,638
Net cash used in investing activities	(3,944,452)	(11,119,755)
Cash flows from financing activities
Dividends paid to common shareholders	(5,151,667)	(5,133,727)
Dividends paid to preferred shareholders	(11,015)	(11,990)
Dividends paid to non-controlling interests	(649,880)
Repurchase of redeemable preferred stock	(16,799)	(1,728)
Proceeds received from exercise of stock options	17,059	10,161
Principal repayments on long-term debt	(49,729)	(32,642)
Net cash used in financing activities	(5,862,031)	(5,169,926)
Net (decrease) increase in cash and cash equivalents	(2,840,173)	1,045,611
Cash and cash equivalents at beginning of period	43,794,150	42,071,083
Cash and cash equivalents at beginning of period - discontinued operations	154,130	831,586
Less: cash and cash equivalents at end of period - discontinued operations	(750,048)	(154,130)
Cash and cash equivalents at end of period	40,358,059	43,794,150
Non-cash transactions:
Right-of-use assets obtained in exchange for new operating lease liabilities	1,852,608	299,992
Purchase of equipment through issuance of long-term debt	95,707	122,292
Aerex
Cash flows from investing activities
Purchase of non-controlling interest in PERC	0	(8,500,000)
PERC Water Corporation
Cash flows from investing activities
Purchase of non-controlling interest in PERC	$ 0	$ (900,000)