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Note 3 - Debt (Tables) | 12 Months Ended
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Dec. 31, 2021
Notes Tables |
Schedule of Long-term Debt Instruments [Table Text Block] |
(In Thousands) |  | December 31, |  |  | December 31, |
|  | 2021 |  |  | 2020 |
Senior secured bonds: |  |  |  |  |  |  |  |
8.50% Senior secured bonds due November 2026 |  | $ | 175,000 |  |  | $ | — |
Senior secured notes: |  |  |  |  |  |  |  |
8.00% Senior secured notes due August 2022 |  |  | — |  |  |  | 147,049 |
Troms offshore borrowings: |  |  |  |  |  |  |  |
NOK denominated notes due May 2024 and January 2026 |  |  | — |  |  |  | 20,513 |
USD denominated notes due January and April 2027 |  |  | — |  |  |  | 30,413 |
|  |  | 175,000 |  |  |  | 197,975 |
Debt discount and issuance costs |  |  | (7,115 | ) |  |  | (5,244 | )
Less: Current portion of long-term debt |  |  | — |  |  |  | (27,797 | )
Total long-term debt |  | $ | 167,885 |  |  | $ | 164,934 |
Interest And Debt Costs Incurred Net Of Interest Capitalized [Table Text Block] |
(In Thousands) |  | Year Ended December 31, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
Total interest and debt costs incurred |  | $ | 15,607 |  |  | $ | 24,156 |  |  | $ | 29,068 |
Less: interest costs capitalized |  |  | (24 | ) |  |  | — |  |  |  | — |
Total interest and debt costs |  | $ | 15,583 |  |  | $ | 24,156 |  |  | $ | 29,068 |

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