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Segment information (Details) - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Segment Reporting Information [Line Items]      
Revenues $ 57,116,202 $ 65,559,078 $ 63,822,131
Cost of revenues 34,189,644 42,443,580 40,316,252
Gross profit (loss) 22,926,558 23,115,498 23,505,879
General and administrative expenses 14,458,494 16,654,439 15,844,303
Income (loss) from operations 8,468,064 6,461,059 7,661,576
Other income (expense), net (542,570) 303,481 1,486,913
Net income 7,925,494 6,764,540 9,148,489
Income attributable to non-controlling interests 406,793 499,182 553,970
Net income attributable to Consolidated Water Co. Ltd. stockholders 7,518,701 6,265,358 8,594,519
Accounts receivable, net 9,529,016 11,773,744  
Property plant and equipment, net 53,743,170 56,396,988  
Construction in progress 1,928,610 1,900,016  
Goodwill 3,499,037 3,499,037  
Land held for development 20,558,424 20,558,424  
Total assets 161,616,698 160,459,831  
Retail [Member]      
Segment Reporting Information [Line Items]      
Revenues 23,254,757 24,104,932 23,018,498
Cost of revenues 10,925,634 11,944,071 10,956,904
Gross profit (loss) 12,329,123 12,160,861 12,061,594
General and administrative expenses 10,713,687 11,183,731 10,812,877
Income (loss) from operations 1,615,436 977,130 1,248,717
Accounts receivable, net 2,261,141 2,521,008  
Property plant and equipment, net 25,204,226 26,978,259  
Construction in progress 1,860,050 902,656  
Goodwill 1,170,511 1,170,511  
Land held for development 0 0  
Total assets 54,603,249 51,319,117  
Bulk [Member]      
Segment Reporting Information [Line Items]      
Revenues 31,854,255 39,201,011 39,960,220
Cost of revenues 21,634,789 27,919,249 28,279,088
Gross profit (loss) 10,219,466 11,281,762 11,681,132
General and administrative expenses 1,605,943 1,605,499 1,643,869
Income (loss) from operations 8,613,523 9,676,263 10,037,263
Accounts receivable, net 6,231,626 8,399,999  
Property plant and equipment, net 28,421,906 29,318,534  
Construction in progress 68,560 997,360  
Goodwill 2,328,526 2,328,526  
Land held for development 0 0  
Total assets 83,284,439 85,063,571  
Services [Member]      
Segment Reporting Information [Line Items]      
Revenues 2,007,190 2,253,135 843,413
Cost of revenues 1,629,221 2,580,260 1,080,260
Gross profit (loss) 377,969 (327,125) (236,847)
General and administrative expenses 2,138,864 3,865,209 3,387,557
Income (loss) from operations (1,760,895) (4,192,334) $ (3,624,404)
Accounts receivable, net 1,036,249 852,737  
Property plant and equipment, net 117,038 100,195  
Construction in progress 0 0  
Goodwill 0 0  
Land held for development 20,558,424 20,558,424  
Total assets $ 23,729,010 $ 24,077,143