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Contingencies (Details Textual) Rp in Billions	1 Months Ended		3 Months Ended		12 Months Ended
	Oct. 31, 2017 USD ($)	Oct. 31, 2017 IDR (Rp)	Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)	Jul. 29, 2011 gal
Commitments And Contingencies [Line Items]
Revenues			$ 15,336,395	$ 15,677,106
Royalty Payment Percentage			7.50%
Cayman Water Retail Operations, Percentage Of Gross Profit			55.00%	56.00%
Cayman Water Retail Operations, Percentage Of Revenue			42.00%	41.00%
Three Plants [Member]
Commitments And Contingencies [Line Items]
Revenues			$ 1,800,000	$ 1,900,000	$ 7,200,000
North Sound Water Works Plant [Member]
Commitments And Contingencies [Line Items]
Expiry Date Of Supply Agreement			2018-07
Red Gate Water Works Plant [Member]
Commitments And Contingencies [Line Items]
Expiry Date Of Supply Agreement			2018-07
North Side Water Works Plant [Member]
Commitments And Contingencies [Line Items]
Expiry Date Of Supply Agreement			2019-06
Cw Belize [Member]
Commitments And Contingencies [Line Items]
Delivery Terms, Volume of water per day | gal						450,000
CW Bali [Member] | Compensatory Damages [Member]
Commitments And Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	$ 4,100,000	Rp 57.1
CW Bali [Member] | Punitive Damages [Member]
Commitments And Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	$ 1,900,000	Rp 26.0

X

- Definition

Represents the percentage of consolidated gross profit from Cayman Water retail operations.

+ References

No definition available.

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- Definition

Represents the percentage of consolidated revenue from Cayman Water retail operations.

+ References

No definition available.

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- Definition

Represents the volume of water that is supplied per day as per the agreement.

+ References

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- Definition

Represents expiry date of supply agreement.

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No definition available.

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- Definition

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- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

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-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14557-108349

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
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