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v3.22.1

Revenues - Summary of Analysis of Consolidated Statements of Operations (Detail) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disaggregation of Revenue [Line Items] |  |  |
Revenues | $ 150,204,527 | $ 145,003,021 | $ 144,259,312
Total revenues | 150,204,527 | 145,003,021 | 144,259,312
Time Charter [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 105,966,167 | 101,837,425 | 97,249,537
Bareboat [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 9,624,684 | 16,876,956 | 21,764,102
Voyage Charter [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 33,813,496 | 25,161,401 | 24,018,198
Other Income Revenues [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | $ 800,180 | $ 1,127,239 | $ 1,227,475

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