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Accrued Liabilities - Schedule of Accrued Liabilities (Detail) - USD ($)
Dec. 31, 2021
Dec. 31, 2020
Schedule Of Accrued Liabilities [Abstract]    
Interest on long-term debt $ 1,883,321 $ 1,887,414
Administrative expenses 210,930 209,553
Vessel operating and voyage expenses 1,748,628 1,676,532
Total $ 3,842,879 $ 3,773,499