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Vessels, Net - Summary of Vessels, Net (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Property, Plant and Equipment [Abstract]      
Vessel cost, Balance $ 698,729,462 $ 828,019,413  
Vessel cost, Additions 129,996,020    
Vessel cost, Impairment loss   (15,722,992)  
Vessel cost, Disposals   (78,933,759)  
Vessel cost, Transfer to Assets held for sale   (34,633,200)  
Vessel cost, Balance 828,725,482 698,729,462 $ 828,019,413
Accumulated Depreciation, Balance (194,434,379) (199,540,960)  
Accumulated Depreciation, Impairment loss   12,906,119  
Accumulated Depreciation, Disposals   15,908,259  
Accumulated Depreciation, Depreciation for the year (26,076,687) (23,707,797)  
Accumulated Depreciation, Balance (220,511,066) (194,434,379) (199,540,960)
Net Book Value, Balance 504,295,083 628,478,453  
Net Book Value, Additions 129,996,020    
Net Book Value, Impairment loss 0 (2,816,873) (3,167,034)
Net Book Value, Disposals   (63,025,500)  
Net Book Value, Transfer to Assets held for sale   (34,633,200)  
Net Book Value, Depreciation for the year (26,076,687) (23,707,797) (27,814,901)
Net Book Value, Balance $ 608,214,416 $ 504,295,083 $ 628,478,453