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Revenues (Tables) | 12 Months Ended
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Dec. 31, 2018
Revenue from Contract with Customer [Abstract] |
Summary of Analysis of Consolidated Statements of Operations | The amounts in the accompanying consolidated statements of operations are analyzed as follows:
|  | Year ended December 31, |
|  | 2016 |  |  | 2017 |  |  | 2018 |
Time charter revenues |  |  | 81,621,851 |  |  |  | 96,339,915 |  |  |  | 104,099,818 |
Time charter revenues – related party |  |  | 7,592,784 |  |  |  | 1,973,643 |  |  |  | — |
Bareboat revenues |  |  | 29,422,512 |  |  |  | 27,647,268 |  |  |  | 24,646,311 |
Voyage charter revenues |  |  | 23,210,618 |  |  |  | 26,924,708 |  |  |  | 34,266,082 |
Other income |  |  | 2,284,418 |  |  |  | 1,426,387 |  |  |  | 1,317,991 |
Total |  |  | 144,132,183 |  |  |  | 154,311,921 |  |  |  | 164,330,202 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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