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Contingencies (Details Textual) | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2017 USD ($) gal | Sep. 30, 2016 | Sep. 30, 2017 USD ($) gal | Sep. 30, 2016 | Dec. 31, 2016 USD ($) | Feb. 29, 2016 | Jul. 29, 2011 gal
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Royalty Payment Percentage |  |  | 7.50% |  |  |  |
Cayman Water Retail Operations, Percentage Of Gross Profit | 48.00% | 52.00% | 52.00% | 55.00% |  |  |
Cayman Water Retail Operations, Percentage Of Revenue | 33.00% | 38.00% | 38.00% | 40.00% |  |  |
Derivative Liability | $ | $ 357,000 |  | $ 357,000 |  | $ 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% |
Cw Belize [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Delivery Terms, Volume of water per day |  |  |  |  |  |  | 450,000
Blue Hills Agreements [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Delivery Terms Volume Of Water Per Week | 63,000,000 |  | 63,000,000 |  |  |  |
Windsor Agreements [Member] |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |
Delivery Terms Volume Of Water Per Week | 16,800,000 |  | 16,800,000 |  |  |  |

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