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Note 3 - Debt - Summary of Debt Outstanding (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Long-term debt, gross | $ 175,000 | $ 197,975
Debt discount and issuance costs | (7,115) | (5,244)
Less: Current portion of long-term debt | 0 | (27,797)
Total long-term debt | 167,885 | 164,934
The 8.00% Senior Secured Notes due August 2022 [Member] |  |
Long-term debt, gross | 0 | 147,049
Troms Offshore [Member] | NOK Denominated Notes Due January 2026 [Member] |  |
Long-term debt, gross | 175,000 | 0
Troms Offshore [Member] | NOK Denominated Notes Due May 2024 [Member] |  |
Long-term debt, gross | 0 | 20,513
Troms Offshore [Member] | USD Denominated Notes Due January 2027 [Member] |  |
Long-term debt, gross | $ 0 | $ 30,413

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