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Contingencies (Details Textual)
 3 Months Ended 12 Months Ended
Mar. 31, 2017
USD ($)
gal
Sep. 30, 2016
USD ($)
Mar. 31, 2016
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Feb. 29, 2016
Jun. 29, 2011
gal
Commitments And Contingencies [Line Items]                
Royalty Payment Percentage 7.50%              
Cayman Water Retail Operations, Percentage Of Gross Profit 56.00%   56.00%          
Cayman Water Retail Operations, Percentage Of Revenue 41.00%   42.00%          
Operating Income (Loss) $ 2,036,376   $ 1,716,045          
Foreign Currency Transaction Gain (Loss), before Tax 65,147   154,409          
Cash and Cash Equivalents, at Carrying Value, Total 36,532,545   35,550,623 $ 39,254,116 $ 44,792,734      
Derivative Liability 515,000     680,000        
Aerex Industries Inc [Member]                
Commitments And Contingencies [Line Items]                
Business Acquisition, Percentage of Voting Interests Acquired             51.00%  
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners             49.00%  
Indonesia, Rupiahs                
Commitments And Contingencies [Line Items]                
Cash and Cash Equivalents, at Carrying Value, Total 15,000     28,000        
Accounts Payable, Current $ 7,000     7,000        
Cw Belize [Member]                
Commitments And Contingencies [Line Items]                
Delivery Terms, Volume of water per day | gal               450,000
CW Bali [Member]                
Commitments And Contingencies [Line Items]                
Plant Capacity | gal 790,000              
Operating Income (Loss) $ (79,667)   (146,625) $ (2,500,000) $ (861,000) $ (586,000)    
Foreign Currency Transaction Gain (Loss), before Tax 0   161,248          
Translation Adjustment Functional to Reporting Currency, Net of Tax 549,555 $ 549,555 $ 549,555          
Net Assets 1,200,000              
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures $ 1,800,000              
CW Bali [Member] | Indonesia, Rupiahs                
Commitments And Contingencies [Line Items]                
Impairment of Long-Lived Assets Held-for-use   $ 2,000,000            
Blue Hills Agreements [Member]                
Commitments And Contingencies [Line Items]                
Delivery Terms Volume Of Water Per Week | gal 63,000,000              
Windsor Agreements [Member]                
Commitments And Contingencies [Line Items]                
Delivery Terms Volume Of Water Per Week | gal 16,800,000