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Intangible assets (Tables) | 12 Months Ended
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Dec. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Finite-Lived Intangible Assets [Table Text Block] | This amount is being amortized over the option period.
|  | December 31, |
|  | 2012 |  |  | 2011 |
Cost |  |  |  |  |  |  |  |
Intangible asset management service agreement |  | $ | 856,356 |  |  | $ | 856,356 |
Belize water production and supply agreement |  |  | 1,522,419 |  |  |  | 1,522,419 |
Usufruct option |  |  | 300,000 |  |  |  | - |
|  |  | 2,678,775 |  |  |  | 2,378,775 |
Accumulated amortization |  |  |  |  |  |  |  |
Intangible asset management service agreement |  |  | (428,569 | ) |  |  | (285,452 | )
Belize water production and supply agreement |  |  | (657,691 | ) |  |  | (591,499 | )
Usufruct option |  |  | (137,500 | ) |  |  | - |
|  |  | (1,223,760 | ) |  |  | (876,951 | )
Intangible assets, net |  | $ | 1,455,015 |  |  | $ | 1,501,824 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] | Amortization for each of the next five years and thereafter is expected to be as follows:
2013 |  | $ | 358,527 |
2014 |  |  | 221,418 |
2015 |  |  | 208,918 |
2016 |  |  | 66,192 |
2017 |  |  | 66,192 |
Thereafter |  |  | 533,768 |
|  | $ | 1,455,015 |

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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References No definition available. + Details
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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16265-109275 + Details
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