Amount of commission with related party for the sale and purchase of vessels capitalized.

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The number of valuations to be performed on vessels per year to evaluate compliance with debt covenant.

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Minimum percentage of the market value of vessels as a percentage of the amount outstanding under the debt instrument, as defined by the debt covenants and restrictions.

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No definition available.

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Excess amount of fair market value over the carrying value of the vessels.

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Excess amount of the purchase price over the underlying net book value of vessels attributed attached time charter.

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Term of additional option to extend lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Number of companies owning vessels.

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Number of joint venture agreements entered by company subsidiary MR Seller, during the period.

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The number of scrubber-fitted vessels owned.

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Deadweight tonnage (DWT) is a measure of vessels capacity in weight, and does not include the weight of the vessel.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Investments in Unconsolidated Joint Ventures, New 2020 Joint Venture (Details) $ in Thousands			12 Months Ended
	Apr. 22, 2021 USD ($)	Apr. 24, 2020 USD ($) Company Agreement Vessel t	Dec. 31, 2023 USD ($) Valuation	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Apr. 22, 2022 USD ($)	Dec. 10, 2020	Mar. 31, 2020	Mar. 12, 2020 USD ($)
Investments in Unconsolidated Joint Ventures [Abstract]
Estimated useful life of vessels			25 years
Prepayments of loan			$ 76,384	$ 68,893	$ 28,313
MR Seller [Member]
Investments in Unconsolidated Joint Ventures [Abstract]
Number of joint venture agreements \| Agreement		2
M/T Eco Yosemite Park and M/T Eco Joshua Park [Member]
Investments in Unconsolidated Joint Ventures [Abstract]
Term of time charter			5 years
Optional term to extend time charter			2 years
California 19 Inc. and California 20 Inc. [Member]
Investments in Unconsolidated Joint Ventures [Abstract]
Number of companies owning vessels \| Company		2
Investment in unconsolidated joint venture		$ 27,000
California 19 Inc. and California 20 Inc. [Member] \| Loan Agreement with Alpha Bank [Member]
Investments in Unconsolidated Joint Ventures [Abstract]
Face amount									$ 37,660
Term of loan			5 years
Minimum market value of vessels as a percentage of amount outstanding			200.00%
Number of valuations to be performed per year \| Valuation			3
California 19 Inc. and California 20 Inc. [Member] \| Loan Agreement with Alpha Bank [Member] \| LIBOR [Member]
Investments in Unconsolidated Joint Ventures [Abstract]
Basis spread on variable rate			3.00%
California 19 Inc. and California 20 Inc. [Member] \| Just-C Limited [Member]
Investments in Unconsolidated Joint Ventures [Abstract]
Ownership percentage			50.00%
California 19 Inc. and California 20 Inc. [Member] \| MR Seller [Member]
Investments in Unconsolidated Joint Ventures [Abstract]
Ownership percentage								50.00%
California 19 Inc. and California 20 Inc. [Member] \| CSI [Member]
Investments in Unconsolidated Joint Ventures [Abstract]
Commission for sale and purchase of vessels		$ 454
California 19 Inc. and California 20 Inc. [Member] \| M/T Eco Yosemite Park and M/T Eco Joshua Park [Member]
Investments in Unconsolidated Joint Ventures [Abstract]
Number of scrubber-fitted vessels owned \| Vessel		2
Dwt of scrubber-fitted vessels \| t		50,000
California 19 Inc. and California 20 Inc. [Member] \| M/T Eco Yosemite Park [Member] \| Loan Agreement with Alpha Bank [Member]
Investments in Unconsolidated Joint Ventures [Abstract]
Face amount			$ 18,500						18,830
Balloon payment payable at maturity			18,830
California 19 Inc. and California 20 Inc. [Member] \| M/T Eco Joshua Park [Member] \| Loan Agreement with Alpha Bank [Member]
Investments in Unconsolidated Joint Ventures [Abstract]
Face amount			18,500						$ 18,830
Balloon payment payable at maturity			$ 18,830
California 19 Inc. [Member]
Investments in Unconsolidated Joint Ventures [Abstract]
Ownership percentage		50.00%	50.00%	50.00%	50.00%		50.00%
Excess of purchase price over net book value of vessels		$ 1,646
Excess of fair market value over carrying value of vessels		$ 1,963
California 19 Inc. [Member] \| Loan Agreement with Alpha Bank [Member]
Investments in Unconsolidated Joint Ventures [Abstract]
Prepayments of loan	$ 330
Balance outstanding						$ 18,500
California 20 Inc. [Member]
Investments in Unconsolidated Joint Ventures [Abstract]
Ownership percentage		50.00%	50.00%	50.00%	50.00%		50.00%
Excess of purchase price over net book value of vessels		$ 1,654
Excess of fair market value over carrying value of vessels		$ 1,963
California 20 Inc. [Member] \| Loan Agreement with Alpha Bank [Member]
Investments in Unconsolidated Joint Ventures [Abstract]
Prepayments of loan	$ 330
Balance outstanding						$ 18,500