Investment in OC-BVI - Income statement details (Details) - Ocean Conversion (BVI) Ltd [Member] - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income attributable to non-controlling interests
Revenue	$ 803,861	$ 708,601	$ 2,358,836	$ 2,138,238
Cost of revenue	523,038	354,476	1,626,152	888,628
Gross profit	280,823	354,125	732,684	1,249,610
General and administrative expenses	170,385	325,721	594,980	742,645
Income from operations	110,438	28,404	137,704	506,965
Other income (expense), net	(4,050)	3,360,304	(20,191)	3,458,070
Net income	106,388	3,388,708	117,513	3,965,035
Income attributable to non-controlling interests	18,691	6,773	56,206	36,180
Net income attributable to controlling interests	$ 87,697	$ 3,381,935	$ 61,307	$ 3,928,855