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Loans Payable - Note 12 - Vendor note payable - Additional Information (Detail) - USD ($)		12 Months Ended
	Jun. 30, 2018	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Trade payable, interest bearing interest rate		12.00%
Trade payable in accounts payable		$ 484,009
Collateral asset carrying value		0
Proceeds from sale of marine equipment		342,125	$ 0	$ 0
Interest Expense		10,829,464	6,915,535	$ 5,360,192
Magellan Offshore Services Ltd [Member]
Trade payable in accounts payable			484,009
Interest Expense		58,083	$ 58,240
Magellan Offshore Services Ltd [Member] | Minimum [Member]
Contingent liability		$ 300,000
Magellan Offshore Services Ltd [Member] | Marine Equipment [Member]
Proceeds from sale of marine equipment	$ 1,000,000.0
Contingent liability	$ 500,000
Collateral Agreement [Member]
Debt instrument maturity date		Aug. 31, 2018

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