Segment information (Tables)

6 Months Ended

Jun. 30, 2012

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

The Company’s segments are strategic business units that are managed separately because, while all segments derive their revenues from desalination-related activities, each segment sells different products and/or services, serves customers with distinctly different needs and generates different gross profit margins.

	Three Months Ended June 30, 2012
	Retail		Bulk		Services			Total
Revenues	$	5,869,254	$	10,212,669	$	148,856		$	16,230,779
Cost of revenues		2,885,657		7,868,487		71,225			10,825,369
Gross profit		2,983,597		2,344,182		77,631			5,405,410
General and administrative expenses		2,686,295		309,364		446,624			3,442,283
Income (loss) from operations		297,302		2,034,818		(368,993	)		1,963,127
Other income (expense), net									117,500
Consolidated net income									2,080,627
Income attributable to non-controlling interests									123,135
Net income attributable to Consolidated Water Co. Ltd. stockholders								$	1,957,492

	Six Months Ended June 30, 2012
	Retail		Bulk		Services			Total
Revenues	$	12,435,382	$	20,281,886	$	242,238		$	32,959,506
Cost of revenues		5,928,405		15,523,939		153,903			21,606,247
Gross profit		6,506,977		4,757,947		88,335			11,353,259
General and administrative expenses		5,482,462		636,764		837,742			6,956,968
Income (loss) from operations		1,024,515		4,121,183		(749,407	)		4,396,291
Other income (expense), net									117,368
Consolidated net income									4,513,659
Income attributable to non-controlling interests									213,501
Net income attributable to Consolidated Water Co. Ltd. stockholders								$	4,300,158

As of June 30, 2012:
Property plant and equipment, net	$	24,716,225	$	36,546,179	$	783,900	$	62,046,304
Construction in progress		335,789		-		-		335,789
Goodwill		1,170,511		2,328,526		88,717		3,587,754
Total assets		62,060,701		80,958,499		3,204,004		146,223,204

	Three Months Ended June 30, 2011
	Retail		Bulk		Services			Total
Revenues	$	6,554,876	$	7,774,643	$	506,353		$	14,835,872
Cost of revenues		3,072,727		6,330,567		181,373			9,584,667
Gross profit		3,482,149		1,444,076		324,980			5,251,205
General and administrative expenses		2,235,113		289,583		656,183			3,180,879
Income (loss) from operations		1,247,036		1,154,493		(331,203	)		2,070,326
Other income (expense), net									136,950
Consolidated net income									2,207,276
Income attributable to non-controlling interests									277,614
Net income attributable to Consolidated Water Co. Ltd. stockholders								$	1,929,662

	Six Months Ended June 30, 2011
	Retail		Bulk		Services			Total
Revenues	$	12,928,391	$	14,941,480	$	872,621		$	28,742,492
Cost of revenues		5,953,601		11,932,934		354,196			18,240,731
Gross profit		6,974,790		3,008,546		518,425			10,501,761
General and administrative expenses		4,565,697		589,529		1,818,068			6,973,294
Income (loss) from operations		2,409,093		2,419,017		(1,299,643	)		3,528,467
Other income (expense), net									741,682
Consolidated net income									4,270,149
Income attributable to non-controlling interests									347,477
Net income attributable to Consolidated Water Co. Ltd. stockholders								$	3,922,672

As of June 30, 2011:
Property plant and equipment, net	$	25,828,890	$	26,528,320	$	1,025,585	$	53,382,795
Construction in progress		242,686		2,010,168		-		2,252,854
Goodwill		1,170,511		2,328,526		88,717		3,587,754
Total assets		73,981,242		75,008,585		4,808,525		153,798,352