N.S.C. Agua, S.A. de C.V. (Details Textual) gal in Millions		1 Months Ended							3 Months Ended					6 Months Ended			12 Months Ended
	May. 15, 2014 USD ($)	May. 31, 2014 USD ($)	Feb. 28, 2014 USD ($)	Oct. 31, 2013 USD ($)	May. 31, 2013 USD ($)	Nov. 30, 2012 USD ($) ft² gal	Feb. 29, 2012 USD ($)	May. 31, 2010 gal	Jun. 30, 2015 USD ($)	Jun. 30, 2015 MXN	Mar. 31, 2015 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2015 MXN	Jun. 30, 2014 USD ($)	Dec. 31, 2012 USD ($) ha	Jun. 30, 2015 MXN	Dec. 31, 2014 USD ($)	Dec. 31, 2013 ha
Schedule of Investments [Line Items]
General and administrative expenses									$ 3,564,222			$ 3,781,161		$ 7,363,811		$ 9,123,794
Payments to Acquire Land Held-for-use														0		17,432,858
Assets, Total									160,058,755					160,058,755					$ 160,459,831
Liabilities, Total									13,649,059					13,649,059					16,377,167
Loans Payable, Current, Total									8,000,000					8,000,000					9,000,000
Option agreement [Member]
Schedule of Investments [Line Items]
Payments To Enter Option Agreement							$ 300,000
Option Agreement Expiration Date							Feb. 07, 2014
Minimum [Member]
Schedule of Investments [Line Items]
Delivery Terms, Volume of water per day | gal						20
Maximum [Member]
Schedule of Investments [Line Items]
Delivery Terms, Volume of water per day | gal						40
N S C Agua [Member]
Schedule of Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners								50.00%
Total Percentage Of Ownership Interest In An Acquired Company					99.90%
Seawater Reverse Osmosis Desalination Plant Per Day Processing Capacity | gal								100
General and administrative expenses									475,815			$ 572,565		1,012,438		$ 2,550,416
Payments to Acquire Land Held-for-use		$ 7,400,000			$ 500,000												$ 500,000
Further Required Payment As Compensation For Operation and Maintenance				$ 500,000
Project Land Amount Paid	$ 10,000,000
Initial Amount Paid					2,000,000
Repayment of inter-company loan payable					5,700,000
Lease Term						20 years
Assets, Total									22,000,000					22,000,000					22,000,000
Liabilities, Total									269,000					269,000					214,000
Payments for Compensation for Operation and Maintenance													$ 350,000
Land Subject to Ground Leases | ft²						5,000
Restricted Cash and Cash Equivalents									473,283					$ 473,283					$ 456,083
Operating Leases, Rent Expense per month						$ 20,000
Land					$ 12,000,000
Total Voting Interest Percentage After Conversion Of Loan					99.90%
Percentage of Voting Interest Acquired through Option Agreement							25.00%
Area of Land | ha																	8.1			12
Payments For Option Agreement Exercised			$ 1,000,000
Income Tax Examination Surcharges Estimate | MXN															MXN 1,744,061
Loans Payable, Current, Total		$ 10,000,000
N S C Agua [Member] | London Interbank Offered Rate (LIBOR) [Member]
Schedule of Investments [Line Items]
Line of Credit Facility, Interest Rate Description														LIBOR plus 1.5%	LIBOR plus 1.5%
N S C Agua [Member] | Mexican Tax Authority [Member]
Schedule of Investments [Line Items]
Income Tax Examination, Estimate of Possible Loss									$ 445,000		$ 379,000				MXN 6,905,280
Income Tax Examination, Penalties Estimate | MXN															1,639,001
Income Tax Examination Estimate Related To Payments To Foreign Vendor | MXN															3,184,745
Income Tax Examination Estimate Related To Inflation and Accumulated Late Fees | MXN																		MXN 3,411,468
N S C Agua [Member] | Mexican Tax Authority [Member] | Letter of Credit [Member]
Schedule of Investments [Line Items]
Irrevocable letter of credit | MXN																		MXN 7,367,875
Loss Contingency, Additional Estimated Loss | MXN										MXN 462,595
N S C Agua [Member] | Minimum [Member] | Mexican Tax Authority [Member]
Schedule of Investments [Line Items]
Income Tax Examination Surcharges Estimate | MXN															913,711
N S C Agua [Member] | Maximum [Member] | Mexican Tax Authority [Member]
Schedule of Investments [Line Items]
Income Tax Examination Surcharges Estimate | MXN															MXN 1,749,751