Segment information (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Revenues	$ 14,666,112	$ 16,348,610
Cost of revenues	8,611,187	10,378,185
Gross profit (loss)	6,054,925	5,970,425
General and administrative expenses	3,799,589	5,342,633
Income (loss) from operations	2,255,336	627,792
Other income (expense), net	(219,557)	150,230
Net Income	2,035,779	778,022
Income attributable to non-controlling interests	114,518	123,113
Net income attributable to Consolidated Water Co. Ltd. stockholders	1,921,261	654,909
Property plant and equipment, net	55,064,046		56,396,988
Construction in progress	2,195,456		1,900,016
Goodwill	3,499,037		3,499,037
Investment in land	20,558,424		20,558,424
Total assets	160,033,680		160,459,831
Retail [Member]
Segment Reporting Information [Line Items]
Revenues	6,135,638	6,112,961
Cost of revenues	2,876,788	2,931,376
Gross profit (loss)	3,258,850	3,181,585
General and administrative expenses	2,805,038	2,888,229
Income (loss) from operations	453,812	293,356
Property plant and equipment, net	26,366,522		26,978,259
Construction in progress	1,050,956		902,656
Goodwill	1,170,511		1,170,511
Investment in land	0		0
Total assets	48,515,695		51,770,206
Bulk [Member]
Segment Reporting Information [Line Items]
Revenues	8,382,316	9,959,736
Cost of revenues	5,449,512	7,111,545
Gross profit (loss)	2,932,804	2,848,191
General and administrative expenses	417,364	434,969
Income (loss) from operations	2,515,440	2,413,222
Property plant and equipment, net	28,595,565		29,318,534
Construction in progress	1,144,500		997,360
Goodwill	2,328,526		2,328,526
Investment in land	0		0
Total assets	87,791,413		84,612,482
Services [Member]
Segment Reporting Information [Line Items]
Revenues	148,158	275,913
Cost of revenues	284,887	335,264
Gross profit (loss)	(136,729)	(59,351)
General and administrative expenses	577,187	2,019,435
Income (loss) from operations	(713,916)	(2,078,786)
Property plant and equipment, net	101,959		100,195
Construction in progress	0		0
Goodwill	0		0
Investment in land	20,558,424		20,558,424
Total assets	$ 23,726,572		$ 24,077,143