Intangible assets (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Cost
Finite-Lived Intangible Assets, Gross	$ 2,678,775	$ 2,678,775
Accumulated amortization [Abstract]
Finite-Lived Intangible Assets, Accumulated Amortization	(1,582,287)	(1,223,760)
Intangible Assets, Net (Excluding Goodwill)	1,096,488	1,455,015
Intangible asset management service agreement [Member]
Cost
Finite-Lived Intangible Assets, Gross	856,356	856,356
Accumulated amortization [Abstract]
Finite-Lived Intangible Assets, Accumulated Amortization	(570,904)	(428,569)
Belize water production and supply agreement [Member]
Cost
Finite-Lived Intangible Assets, Gross	1,522,419	1,522,419
Accumulated amortization [Abstract]
Finite-Lived Intangible Assets, Accumulated Amortization	(723,883)	(657,691)
Usufruct option [Member]
Cost
Finite-Lived Intangible Assets, Gross	300,000	300,000
Accumulated amortization [Abstract]
Finite-Lived Intangible Assets, Accumulated Amortization	$ (287,500)	$ (137,500)