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Segment information (Details 2) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Net	$ 50,525,064	$ 53,084,105
Cayman Island [Member]
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Net	23,182,334	24,252,351
Bahamas [Member]
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Net	24,511,285	25,180,669
Belize [Member]
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Net	841,293	907,752
Indonesia [Member]
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Net	0	612,568
United States [Member]
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Net	1,847,524	1,978,321
Other [Member]
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Net	$ 142,628	$ 152,444

X

- Definition

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(14))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(8))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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