Investment in OC-BVI - Assets and liabilities (Details) - Ocean Conversion (BVI) Ltd [Member] - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Investment in OC-BVI
Current assets	$ 1,151,398	$ 2,286,179
Non-current assets	3,446,198	3,859,310
Total assets	4,597,596	6,145,489
Current liabilities	156,040	132,005
Non-current liabilities	684,450	1,048,950
Total liabilities	$ 840,490	$ 1,180,955

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