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Note 9 - Debt (Tables) | 9 Months Ended
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Sep. 30, 2021
Notes Tables |
Schedule of Long-term Debt Instruments [Table Text Block] |
(In thousands) |  | September 30, 2021 |  |  | December 31, 2020 |
Senior Secured Notes: |  |  |  |  |  |  |  |
8.00% Senior Secured Notes due August 2022 (A) (B) (C) |  | $ | 135,210 |  |  | $ | 147,049 |
Troms Offshore borrowings (D): |  |  |  |  |  |  |  |
NOK denominated notes due May 2024 |  |  | 2,763 |  |  |  | 5,954 |
NOK denominated notes due January 2026 |  |  | 6,450 |  |  |  | 14,559 |
USD denominated notes due January 2027 |  |  | 6,887 |  |  |  | 14,744 |
USD denominated notes due April 2027 |  |  | 7,444 |  |  |  | 15,669 |
|  | $ | 158,754 |  |  | $ | 197,975 |
Debt premiums and discounts, net |  |  | (3,620 | ) |  |  | (5,244 | )
Less: Current portion of long-term debt |  |  | (140,995 | ) |  |  | (27,797 | )
Total long-term debt |  | $ | 14,139 |  |  | $ | 164,934 |

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