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Basis of Presentation and General Information (Tables) | 12 Months Ended
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Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Ownership and Operation of Tanker Vessels | All the subsidiaries of the Vessel-owning companies are engaged in the marine transportation of liquid cargoes through the ownership and operation of tanker vessels, as listed below:
Vessel-owning company |  | Incorporation date |  | Vessel |  | DWT |  |  | Year built |  |  | Acquisition date
Secondone |  | 05/23/2007 |  | Northsea Alpha |  |  | 8,615 |  |  |  | 2010 |  |  | 05/28/2010
Thirdone |  | 05/23/2007 |  | Northsea Beta |  |  | 8,647 |  |  |  | 2010 |  |  | 05/25/2010
Fourthone |  | 05/30/2007 |  | Pyxis Malou |  |  | 50,667 |  |  |  | 2009 |  |  | 02/16/2009
Sixthone |  | 01/15/2010 |  | Pyxis Delta* |  |  | 46,616 |  |  |  | 2006 |  |  | 03/04/2010
Seventhone |  | 05/31/2011 |  | Pyxis Theta |  |  | 51,795 |  |  |  | 2013 |  |  | 09/16/2013
Eighthone |  | 02/08/2013 |  | Pyxis Epsilon |  |  | 50,295 |  |  |  | 2015 |  |  | 01/14/2015
* Pyxis Delta, which was owned by Sixthone Corp. (“Sixthone”), was sold to an unaffiliated third party on January 13, 2020

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