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Note 8 - Debt - Summary of Debt Outstanding (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Long-term debt, gross |  | $ 645,985 | $ 647,887
Debt discount and issuance costs |  | (9,949) | (10,791)
Less: Current portion of long-term debt |  | (80,042) | (65,386)
Total long-term debt |  | 555,994 | 571,710
Secured Debt [Member] |  |  |
Long-term debt, gross | [1] | 200,000 | 212,500
Unsecured Debt [Member] |  |  |
Long-term debt, gross | [2] | 250,000 | 250,000
Nordic Bond [Member] |  |  |
Long-term debt, gross | [3],[4] | 175,000 | 175,000
Vessel Facility Agreements [Member] |  |  |
Long-term debt, gross |  | $ 20,985 | $ 10,387
[1] | As of March 31, 2025 and December 31, 2024, the fair value (Level 3) of the Senior Secured Term Loan was $205.4 million and $218.2 million, respectively. The Level 3 fair value is derived from discounted present value calculations.
[2] | As of March 31, 2025 and December 31, 2024, the fair value (Level 1) of the 10.375% Senior Unsecured Notes due July 2028 was $267.5 million and $266.1 million, respectively. The fair value is obtained from public transaction activity on the Nordic ABM exchange (XOAM).
[3] | Approximately $5.0 million of the amount in restricted cash on the condensed consolidated balance sheet at March 31, 2025, represents the pro rata amount due for our next semiannual interest payment obligation on the 8.50% Senior Secured Notes.
[4] | As of March 31, 2025 and December 31, 2024, the fair value (Level 1) of the 8.50% Senior Secured Notes due November 2026 was $180.8 million and $180.8 million, respectively. The fair value is obtained from public transaction activity on the XOAM.

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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481139/470-20-50-4 + Details
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