Segment information (Tables)

12 Months Ended

Dec. 31, 2018

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 each segment sells different products and/or services, serves customers with distinctly different needs and generates different gross profit margins.

	Year Ended December 31, 2018
	Retail		Bulk		Services			Manufacturing			Total
Revenues	$	25,621,048	$	31,031,287	$	1,811,372		$	7,256,150		$	65,719,857
Cost of revenues		11,011,456		21,551,383		1,503,034			4,911,697			38,977,570
Gross profit		14,609,592		9,479,904		308,338			2,344,453			26,742,287
General and administrative expenses		12,029,646		1,301,042		2,889,703			2,489,028			18,709,419
Loss on asset dispositions and impairments, net		12,263		-		41,180			3,331			56,774
Income (loss) from operations	$	2,567,683	$	8,178,862	$	(2,622,545	)	$	(147,906	)		7,976,094
Other income, net												2,740,064
Income before income taxes												10,716,158
Benefit from income taxes												(157,291	)
Net income from continuing operations												10,873,449
Income from continuing operations attributable to non-controlling interests												695,787
Net income from continuing operations attributable to Consolidated Water Co. Ltd. stockholders												10,177,662
Net income from discontinued operations												1,115,825
Net income attributable to Consolidated Water Co. Ltd. stockholders											$	11,293,487

Depreciation and amortization expenses for the year ended December 31, 2018 for the retail, bulk, services and manufacturing segments were $2,019,462, $3,387,592, $28,386 and $1,598,794, respectively. 

	As of December 31, 2018
	Retail		Bulk		Services		Manufacturing		Total
Accounts receivable, net	$	2,947,193	$	18,480,589	$	1,812,838	$	987,475	$	24,228,095
Property plant and equipment, net	$	24,435,501	$	32,820,908	$	14,772	$	1,609,637	$	58,880,818
Construction in progress	$	5,437,093	$	574,659	$	3,291	$	-	$	6,015,043
Intangibles, net	$	-	$	-	$	-	$	1,891,667	$	1,891,667
Goodwill	$	1,170,511	$	1,947,846	$	-	$	4,885,211	$	8,003,568
Land and rights of way held for development	$	-	$	-	$	24,161,024	$	-	$	24,161,024
Total segment assets	$	61,210,879	$	67,739,059	$	27,406,983	$	12,254,121	$	168,611,042
Assets of discontinued operations									$	3,904,556
Total assets									$	172,515,598

	Year Ended December 31, 2017
	Retail			Bulk		Services			Manufacturing			Total
Revenues	$	23,225,066		$	28,682,113	$	469,347		$	6,990,496		$	59,367,022
Cost of revenues		10,372,199			19,562,503		469,797			4,963,962			35,368,461
Gross profit		12,852,867			9,119,610		(450	)		2,026,534			23,998,561
General and administrative expenses		11,884,659			1,108,158		3,043,078			2,646,504			18,682,399
Loss on asset dispositions and impairments, net		1,640,158			-		-			1,400,000			3,040,158
Income (loss) from operations	$	(671,950	)	$	8,011,452	$	(3,043,528	)	$	(2,019,970	)		2,276,004
Other income, net													1,526,358
Income before income taxes													3,802,362
Benefit from income taxes													(888,977	)
Net income from continuing operations													4,691,339
Loss from continuing operations attributable to non-controlling interests													(411,489	)
Net income from continuing operations attributable to Consolidated Water Co. Ltd. stockholders													5,102,828
Net income from discontinued operations													1,041,234
Net income attributable to Consolidated Water Co. Ltd. stockholders												$	6,144,062

Depreciation and amortization expenses for the year ended December 31, 2017 for the retail, bulk, services and manufacturing segments were $2,008,992, $3,632,171, $44,934 and $1,603,971, respectively.

	As of December 31, 2017
	Retail		Bulk		Services		Manufacturing		Total
Accounts receivable, net	$	2,406,595	$	9,816,852	$	1,155,318	$	1,308,313	$	14,687,078
Property plant and equipment, net	$	23,172,382	$	24,579,526	$	84,339	$	1,847,524	$	49,683,771
Construction in progress	$	321,368	$	1,498,625	$	3,291	$	0	$	1,823,284
Intangibles, net	$	-	$	-	$	-	$	3,231,667	$	3,231,667
Goodwill	$	1,170,511	$	1,947,846	$	-	$	4,885,211	$	8,003,568
Land and rights of way held for development	$	-	$	-	$	21,505,675	$	-	$	21,505,675
Total segment assets	$	52,095,524	$	71,489,274	$	24,488,173	$	13,111,875	$	161,184,846
Assets of discontinued operations									$	4,296,049
Total assets									$	165,480,895

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

	Year ended December 31,
	2018		2017
Cayman Islands	$	34,623,925	$	30,218,830
Bahamas		23,241,361		21,528,494
Indonesia		153,233		159,856
USA		7,256,150		6,990,496
Revenues earned from management services agreement with OC-BVI		445,188		469,346
	$	65,719,857	$	59,367,022

Revenues earned from major customers were:

	Year ended December 31,
	2018			2017
Revenues earned from the Water and Sewerage Corporation	$	22,956,878		$	21,307,993
Percentage of total revenues from the WSC		35	%		36	%
Revenues earned from the Water Authority - Cayman	$	7,789,926		$	7,153,620
Percentage of total revenues from the WAC		12	%		12	%

Long-lived Assets by Geographic Areas [Table Text Block]

Property, plant and equipment, net by major geographic region were:

	December 31,
	2018		2017
Cayman Island operations	$	24,340,063	$	23,182,334
Bahamas operations		32,738,531		24,511,285
USA		1,609,637		1,847,524
All other country operations		192,587		142,628
	$	58,880,818	$	49,683,771