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Segment information (Details) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Segment Reporting Information [Line Items]          
Revenues $ 16,931,832 $ 16,569,380 $ 33,280,442 $ 33,124,577  
Cost of revenues 10,561,786 10,171,859 20,939,971 20,506,549  
Gross profit 6,370,046 6,397,521 12,340,471 12,618,028  
General and administrative expenses 3,781,161 3,594,762 9,123,794 7,163,698  
Income (loss) from operations 2,588,885 2,802,759 3,216,677 5,454,330  
Other income, net 317,653 212,479 467,883 1,424,595  
Consolidated net income 2,906,538 3,015,238 3,684,560 6,878,925  
Income attributable to non-controlling interests 146,845 161,388 269,958 283,072  
Net income attributable to Consolidated Water Co. Ltd. stockholders 2,759,693 2,853,850 3,414,602 6,595,853  
Property plant and equipment, net 57,186,662   57,186,662   58,602,886
Construction in progress 2,459,433   2,459,433   1,450,417
Goodwill 3,499,037   3,499,037   3,499,037
Investment in land 20,558,424   20,558,424   13,175,566
Total assets 162,010,694   162,010,694   165,364,854
Retail [Member]
          
Segment Reporting Information [Line Items]          
Revenues 6,499,257 6,179,597 12,612,218 12,574,609  
Cost of revenues 3,119,483 2,870,175 6,050,859 5,704,927  
Gross profit 3,379,774 3,309,422 6,561,359 6,869,682  
General and administrative expenses 2,843,293 2,679,249 5,731,520 5,310,759  
Income (loss) from operations 536,481 630,173 829,839 1,558,923  
Property plant and equipment, net 26,179,279   26,179,279   26,339,461
Construction in progress 1,457,884   1,457,884   1,181,628
Goodwill 1,170,511   1,170,511   1,170,511
Investment in land 0   0   0
Total assets 48,526,367   48,526,367   65,853,375
Bulk [Member]
          
Segment Reporting Information [Line Items]          
Revenues 9,966,194 10,162,572 19,925,930 20,019,262  
Cost of revenues 6,895,914 7,047,346 14,007,459 14,234,759  
Gross profit 3,070,280 3,115,226 5,918,471 5,784,503  
General and administrative expenses 325,403 354,961 760,373 763,208  
Income (loss) from operations 2,744,877 2,760,265 5,158,098 5,021,295  
Property plant and equipment, net 30,384,326   30,384,326   31,736,774
Construction in progress 1,001,549   1,001,549   98,807
Goodwill 2,328,526   2,328,526   2,328,526
Investment in land 0   0   0
Total assets 88,912,937   88,912,937   84,300,971
Services [Member]
          
Segment Reporting Information [Line Items]          
Revenues 466,381 227,211 742,294 530,706  
Cost of revenues 546,389 254,338 881,653 566,863  
Gross profit (80,008) (27,127) (139,359) (36,157)  
General and administrative expenses 612,465 560,552 2,631,901 1,089,731  
Income (loss) from operations (692,473) (587,679) (2,771,260) (1,125,888)  
Property plant and equipment, net 623,057   623,057   526,651
Construction in progress 0   0   169,982
Goodwill 0   0   0
Investment in land 20,558,424   20,558,424   13,175,566
Total assets $ 24,571,390   $ 24,571,390   $ 15,210,508