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Property and Equipment - Summary of Property and Equipment (Detail) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 11,404,751	$ 11,033,536
Less: Accumulated depreciation	(10,647,910)	(10,915,557)
Total property and equipment	756,841	117,979
Computers and Peripherals [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	706,274	1,021,844
Furniture and Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,854,098	1,907,116
Marine Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	8,104,576	$ 8,104,576
Right to use asset, net [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 739,803

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