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Advances for Vessels Under Construction and Vessels, net (Narrative) (Details) $ in Thousands |  |  | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Feb. 15, 2024 USD ($) | Feb. 08, 2024 USD ($) Vessels | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) | Feb. 22, 2024 USD ($) | Jan. 19, 2024 USD ($) | Dec. 31, 2023 USD ($)
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Additions for vessel improvements |  |  | $ 25,008 |  |  |  |
Asset Acquisition [Line Items] |  |  |  |  |  |  |
Number of vessels in agreement to acquire | Vessels |  | 2 |  |  |  |  |
Commitment amount |  | $ 46,000 |  |  |  |  |
Purchase price of vessels | $ 8,050 |  |  |  |  |  |
Percent of paid in advance of purchase price | 17.50% |  |  |  |  |  |
Advances for vessels under construction |  |  | 16,583 |  |  |  | $ 0
Vessels under construction, capitalized interest |  |  | 472 |  |  |  |
Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Sale price of vessel |  |  |  |  | $ 23,300 | $ 12,990 |
Gain (loss) from sale of vessels |  |  | 1,572 | $ 4,995 |  |  |
Deferred costs |  |  | $ 14,721 |  |  |  | $ 15,278

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