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Inventories - Schedule of Inventory, Current (Detail) - USD ($) | Dec. 31, 2019 | Dec. 31, 2018
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Inventory Disclosure [Abstract] |  |
Bunkers | $ 1,112,667 | $ 1,082,384
Lubricants | 1,335,036 | 1,264,339
Total | $ 2,447,703 | $ 2,346,723

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