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Revenues - Summary of Analysis of Consolidated Statements of Operations (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disaggregation of Revenue [Line Items]      
Revenues $ 152,760,888 $ 150,204,527 $ 145,003,021
Total revenues 152,760,888 150,204,527 145,003,021
Time Charter [Member]      
Disaggregation of Revenue [Line Items]      
Revenues 114,996,842 105,966,167 101,837,425
Bareboat [Member]      
Disaggregation of Revenue [Line Items]      
Revenues 2,340,791 9,624,684 16,876,956
Voyage Charter [Member]      
Disaggregation of Revenue [Line Items]      
Revenues 32,156,474 33,813,496 25,161,401
Other Income Revenues [Member]      
Disaggregation of Revenue [Line Items]      
Revenues $ 3,266,781 $ 800,180 $ 1,127,239