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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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