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Commitments and contingencies (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Mar. 04, 2010 gal	Dec. 31, 2009 gal	Dec. 31, 2007 gal
Commitments And Contingencies [Line Items]
Operating Leases, Rent Expense, Net, Total	$ 822,159	$ 559,811	$ 464,355
Royalty Payment Percentage	7.50%
Employment Agreement Base Annual Salaries	3,000,000
Goodwill	3,499,037	3,499,037
Retail Water Gross Profit Percentage	52.00%	58.00%
Retail Water Revenue Percentage	36.00%	37.00%
Plant Capacity				600,000	1,700,000	720,000
Non-Cancellable Lease Term Expiration Date	2032
Subsequent Event [Member]
Commitments And Contingencies [Line Items]
Plant Capacity	63,000,000
Retail Segment [Member]
Commitments And Contingencies [Line Items]
Goodwill	$ 3,499,037

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- Definition

Represents the base annual salary amount, under the employment agreement.

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- Definition

It represents the expiration term of lease agreement.

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No definition available.

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- Definition

Plant capacity in million gallons per day.

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No definition available.

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- Definition

Represents the percentage of consolidated gross profit from retail water operations.

+ References

No definition available.

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- Definition

Represents the percentage of consolidated revenue from retail water operations.

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- Definition

Represents the royalty payment percentage.

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No definition available.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

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