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Vessels, Net - Summary of Vessels, Net (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Property, Plant and Equipment [Abstract]      
Vessel cost, Balance $ 828,019,413 $ 872,676,077  
Vessel cost, Additions 0 748,848  
Vessel cost, Impairment loss (15,722,992) (22,779,899)  
Vessel cost, Disposals (78,933,759) (12,046,017)  
Vessel cost, Transfer to Assets held for sale (34,633,200) (10,579,596)  
Vessel cost, Balance 698,729,462 828,019,413 $ 872,676,077
Accumulated Depreciation, Balance (199,540,960) (191,338,924)  
Accumulated Depreciation, Impairment loss 12,906,119 19,612,865  
Accumulated Depreciation, Disposals (15,908,259)    
Accumulated Depreciation, Depreciation for the year (23,707,797) (27,814,901)  
Accumulated Depreciation, Balance (194,434,379) (199,540,960) (191,338,924)
Net Book Value, Balance 628,478,453 681,337,153  
Net Book Value, Additions 0 748,848  
Net Book Value, Impairment loss (2,816,873) (3,167,034) (44,616,214)
Net Book Value, Disposals (63,025,500) (12,046,017)  
Net Book Value, Transfer to Assets held for sale (34,633,200) (10,579,596)  
Net Book Value, Depreciation for the year (23,707,797) (27,814,901) (37,125,903)
Net Book Value, Balance $ 504,295,083 $ 628,478,453 $ 681,337,153