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Cash and cash equivalents (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Cash and Cash Equivalents [Line Items]
Bank accounts	$ 29,540,020	$ 21,918,298
Short term deposits	13,362,649	9,419,179
Total cash and cash equivalents	42,902,669	31,337,477
United States dollar [Member]
Cash and Cash Equivalents [Line Items]
Bank accounts	16,107,831	11,797,054
Short term deposits	11,100,185	8,379,723
Cayman Islands dollar [Member]
Cash and Cash Equivalents [Line Items]
Bank accounts	6,690,274	5,626,487
Short term deposits	1,209,954	0
Bahamian dollar [Member]
Cash and Cash Equivalents [Line Items]
Bank accounts	6,353,936	3,301,002
Short term deposits	1,052,510	1,039,456
Belize dollar [Member]
Cash and Cash Equivalents [Line Items]
Bank accounts	0	1,130,783
Bermudian dollar [Member]
Cash and Cash Equivalents [Line Items]
Bank accounts	3,084	3,370
Mexican peso [Member]
Cash and Cash Equivalents [Line Items]
Bank accounts	384,895	37,313
Indonesian rupiah [Member]
Cash and Cash Equivalents [Line Items]
Bank accounts	$ 0	$ 22,289

X

- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

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-SubTopic 210
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