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Basis of Presentation and General information, Revenue from Charters (Details) - Revenues [Member] - Customer Concentration [Member] | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Charterers [Member] |  |  |
Credit Concentration Considerations [Abstract] |  |  |
Concentration risk percentage | 43.00% | 58.00% | 100.00%
Charterer A [Member] |  |  |
Credit Concentration Considerations [Abstract] |  |  |
Concentration risk percentage | 20.00% | 34.00% | 63.00%
Charterer B [Member] |  |  |
Credit Concentration Considerations [Abstract] |  |  |
Concentration risk percentage | 12.00% | 0.00% | 0.00%
Charterer C [Member] |  |  |
Credit Concentration Considerations [Abstract] |  |  |
Concentration risk percentage | 11.00% | 0.00% | 0.00%
Charterer D [Member] |  |  |
Credit Concentration Considerations [Abstract] |  |  |
Concentration risk percentage | 0.00% | 0.00% | 13.00%
Charterer E [Member] |  |  |
Credit Concentration Considerations [Abstract] |  |  |
Concentration risk percentage | 0.00% | 24.00% | 12.00%
Charterer F [Member] |  |  |
Credit Concentration Considerations [Abstract] |  |  |
Concentration risk percentage | 0.00% | 0.00% | 12.00%

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