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N.S.C. Agua, S.A. de C.V. (Details Textual)
gal in Millions
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
May. 15, 2014
USD ($)
May. 31, 2014
USD ($)
Feb. 28, 2014
USD ($)
May. 31, 2013
USD ($)
Nov. 30, 2012
USD ($)
ft²
gal
Feb. 29, 2012
USD ($)
May. 31, 2010
gal
Sep. 30, 2015
USD ($)
Sep. 30, 2014
USD ($)
Mar. 31, 2014
USD ($)
Sep. 30, 2015
USD ($)
Sep. 30, 2015
MXN
Sep. 30, 2014
USD ($)
Dec. 31, 2014
MXN
Dec. 31, 2012
USD ($)
ha
Sep. 30, 2015
MXN
Dec. 31, 2014
USD ($)
Dec. 31, 2013
ha
Jun. 01, 2010
Schedule of Investments [Line Items]                                      
General and administrative expenses               $ 3,392,615 $ 3,984,956   $ 10,756,426   $ 13,108,750            
Payments to Acquire Land Held-for-use                     0   7,381,787            
Assets, Total               161,152,322     161,152,322           $ 160,459,831    
Liabilities, Total               13,856,311     13,856,311           16,377,167    
Restricted Cash and Cash Equivalents, Current               433,218     433,218           456,083    
Loans Payable, Current, Total               7,500,000     7,500,000           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%                       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               357,309 $ 693,586   1,369,747   $ 3,244,002            
Payments to Acquire Land Held-for-use   $ 7,400,000   $ 500,000                     $ 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               180,000     180,000           214,000    
Payments for Compensation for Operation and Maintenance                   $ 350,000                  
Land Subject to Ground Leases | ft²         5,000                            
Restricted Cash and Cash Equivalents, Current               433,218     433,218           $ 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%                          
Payments for Stock Options Exercised     $ 1,000,000                                
Area of Land | ha                             8.1     12  
Payments For Option Agreement Exercised     $ 1,000,000                                
Loans Payable, Current, Total   $ 10,000,000                                  
Payments Of Taxes To Foreign Vendor                     $ 1,000,000                
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               $ 406,000       MXN 6,905,280              
Income Tax Examination, Penalties Estimate | MXN                       1,744,061   MXN 1,639,001          
Income Tax Examination Surcharges Estimate | MXN                       1,749,751   913,711          
Payments Of Taxes To Foreign Vendor | MXN                       3,411,468   MXN 3,184,745          
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