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Represents the amount of required free liquid assets to satisfy a debt instrument covenant.

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No definition available.

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Represents the percentage of interest bearing debt to satisfy the free liquidity test of a debt instrument covenant.

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No definition available.

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The percentage of net interest bearing debt for minimum free liquidity requirement under covenant of the debt instrument.

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The minimum equity ratio percentage of the covenant of the debt instrument.

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The final payment for the outstanding debt.

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No definition available.

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The issue price percentage of debt instrument.

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No definition available.

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The minimum aggregate nominal amount outstanding that will trigger mandatory prepayment of the debt instrument.

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No definition available.

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The percentage of interest payment obligation to be deposited into the reserve account each month for the debt instrument.

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No definition available.

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The number of vessels.

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

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No definition available.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of the required periodic payments including both interest and principal payments.

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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 carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as current. Excludes lease obligation.

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The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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Note 4 - Debt (Details Textual) $ in Thousands, € in Millions			1 Months Ended	12 Months Ended
	Jul. 05, 2023 USD ($)	Nov. 16, 2021 USD ($)	Jan. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Jan. 31, 2025 EUR (€)	Dec. 31, 2024 EUR (€)	Dec. 31, 2023 USD ($)	Jul. 03, 2023 USD ($)
Long-Term Debt, Current Maturities				$ 65,386			$ 103,077
Restricted Cash, Current				$ 2,032			1,241
Alucat Crew Boats [Member]
Number of Vessels				8
Subsequent Event [Member] \| Alucat Crew Boats [Member]
Number of Vessels			5
Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity		$ 25,000
Long-term Line of Credit, Total							0
Debt Instrument, Mandatory Prepayment, Minimum Aggregate Nominal Amount Outstanding		$ 75,000
Prime Rate [Member] \| Revolving Credit Facility [Member]
Debt Instrument, Basis Spread on Variable Rate		4.00%
Nordic Bond [Member]
Debt Instrument, Face Amount		$ 175,000
Debt Instrument, Fair Value Disclosure				$ 180,800			181,700
Debt Instrument, Interest Rate, Stated Percentage		8.50%
Debt Instrument, Issue Price Percentage		98.50%
Debt Instrument, Monthly Deposit into Reserve Account, Percentage of Interest Payment		16.67%
Debt Instrument, Covenant, Minimum Free Liquidity Amount		$ 20,000
Debt Instrument, Covenant, Minimum Free Liquidity, Percentage of Net Interest Bearing Debt		10.00%
Debt Instrument, Covenant, Percentage of Minimum Equity Ratio		30.00%
Restricted Cash, Current				1,200
Nordic Bond [Member] \| GOLP and TMII [Member]
Debt Instrument, Collateral, Percentage of Equity Interests		66.00%
The 8.00% Senior Secured Notes due August 2022 [Member]
Long-Term Debt, Gross				$ 175,000			$ 175,000
Debt Instrument, Interest Rate, Stated Percentage		8.00%		8.50%		8.50%	8.50%
Supplier Facility Agreements for Four Vessels Delivered [Member]
Debt Instrument, Face Amount				$ 15,200		€ 13.9
Supplier Facility Agreements for Four Vessels Delivered [Member] \| Minimum [Member]
Debt Instrument, Interest Rate, Stated Percentage				2.70%		2.70%
Supplier Facility Agreements for Four Vessels Delivered [Member] \| Maximum [Member]
Debt Instrument, Interest Rate, Stated Percentage				6.30%		6.30%
Supplier Facility Agreements for Five Vessels Delivered [Member] \| Subsequent Event [Member] \| Alucat Crew Boats [Member]
Debt Instrument, Face Amount			$ 9,700		€ 9.4
Supplier Facility Agreements for Five Vessels Delivered [Member] \| Minimum [Member] \| Subsequent Event [Member] \| Alucat Crew Boats [Member]
Debt Instrument, Interest Rate, Stated Percentage			5.20%		5.20%
Supplier Facility Agreements for Five Vessels Delivered [Member] \| Maximum [Member] \| Subsequent Event [Member] \| Alucat Crew Boats [Member]
Debt Instrument, Interest Rate, Stated Percentage			5.40%		5.40%
Secured Debt [Member]
Debt Instrument, Face Amount	$ 325,000
Long-Term Debt, Gross	318,300			$ 212,500			$ 312,500
Debt Instrument, Covenant, Free Liquidity Test, Amount	$ 20,000
Debt Instrument, Covenant, Free Liquidity Test, Percentage	10.00%
Debt Instrument, Covenant, Minimum Equity Ratio	30.00%
Debt Instrument, Fair Value Disclosure				218,200			313,700
Secured Debt [Member] \| Tranche A Term Loan [Member]
Debt Instrument, Face Amount	$ 100,000
Long-Term Debt, Current Maturities	50,000
Long-Term Line of Credit, Noncurrent	$ 50,000
Secured Debt [Member] \| Tranche A Term Loan [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	5.00%
Secured Debt [Member] \| Tranche A Term Loan [Member] \| Maximum [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	8.00%
Secured Debt [Member] \| Tranche B Term Loan [Member]
Debt Instrument, Face Amount	$ 225,000
Debt Instrument, Term (Year)	3 years
Debt Instrument, Final Payment	$ 50,000
Secured Debt [Member] \| Tranche B Term Loan [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	3.75%
Secured Debt [Member] \| Tranche B Term Loan [Member] \| Minimum [Member]
Debt Instrument, Periodic Payment	$ 12,500
Secured Debt [Member] \| Tranche B Term Loan [Member] \| Maximum [Member]
Debt Instrument, Periodic Payment	$ 25,000
Unsecured Debt [Member]
Debt Instrument, Face Amount								$ 250,000
Long-Term Debt, Gross				250,000			250,000	243,100
Debt Instrument, Covenant, Free Liquidity Test, Amount								$ 20,000
Debt Instrument, Covenant, Free Liquidity Test, Percentage								10.00%
Debt Instrument, Covenant, Minimum Equity Ratio								30.00%
Debt Instrument, Fair Value Disclosure				$ 266,100			$ 260,200
Debt Instrument, Interest Rate, Stated Percentage				10.375%		10.375%	10.375%	10.375%