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Note 11 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands |  |  |  |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Nov. 10, 2022 | Aug. 12, 2022 | Jun. 24, 2022 | Apr. 22, 2022 | Dec. 31, 2023 | Jul. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2017 | Nov. 30, 2023
Stock Repurchased During Period, Shares (in shares) |  |  |  |  |  |  |  | 0 | 0 |  |
Dividends, Common Stock, Cash |  |  |  |  |  |  | $ 0 | $ 0 | $ 0 |  |
Class Of Warrant Or Right, Issued During Period (in shares) |  |  |  |  |  |  |  |  |  | 11,543,814 |
Proceeds from Warrant Exercises |  |  |  |  |  |  | 111,483 | 0 | 0 |  |
Proceeds from Issuance of Common Stock |  |  |  |  |  |  | $ 0 | 187,832 | $ 0 |  |
Common Shares [Member] |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | 3,987,914 | 4,048,000 |  |  |  |  |  |  |  |  |
Share Price (in dollars per share) | $ 30.25 | $ 17.85 |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  |  |  |  |  |  |  | $ 187,800 |  |  |
Class of Warrant or Right, Redeemed and Canceled (in shares) |  |  |  |  |  |  |  | 8,035,914 |  |  |
New Creditor Warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) |  |  |  |  | $ 0.001 |  | $ 0.001 |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |  |  |  |  | 1 |  | 1 |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  |  | 81,244 |  | 81,244 |  |  |  |
Series A Warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) |  |  |  |  |  |  |  |  |  | $ 57.06 |
Series B Warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) |  |  |  |  |  |  |  |  |  | $ 62.28 |
Series A and B Warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  |  |  | 1,900,000 |  |  |  |  |
Class of Warrant or Right, Outstanding (in shares) |  |  |  |  |  | 2,000,000 |  |  |  |  |
Proceeds from Warrant Exercises |  |  |  |  |  | $ 111,500 |  |  |  |  |
Class of Warrant or Right, Expired (in shares) |  |  |  |  |  | 3,100,000 |  |  |  |  |
GLF Equity Warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) |  |  |  |  |  |  |  | $ 0.01 |  |  |
Class of Warrant or Right, Outstanding (in shares) |  |  |  |  | 91,436 |  | 91,436 |  |  |  |
Class Of Warrant Or Right, Assumed During Period (in shares) |  |  |  |  |  |  |  | 2,300,000 |  |  |
Class of Warrant or Right, Exercised During Period (in shares) |  |  |  |  |  |  | 0 |  |  |  |
Equity Warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) |  |  |  |  |  |  |  | $ 100 |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |  |  |  |  |  |  |  | 1.1 |  |  |
Class Of Warrant Or Right, Assumed During Period (in shares) |  |  |  |  |  |  |  | 800,000 |  |  |
Warrants Issued to Acquire Swire Pacific Offshore Holdings Ltd. [Member] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Issued During Period, Exercise Price (in dollars per share) |  |  |  | $ 0.001 |  |  |  | $ 0.001 |  |  |
Share Price (in dollars per share) |  |  | $ 21.83 | $ 20.08 |  |  |  |  |  |  |
Adjustments to Additional Paid in Capital, Warrant Issued |  |  | $ 176,800 |  |  |  |  |  |  |  |
Fair Value Adjustment of Warrants |  |  | $ 14,200 |  |  |  |  |  |  |  |
Indemnification Agreement, Settlement of Warrants, Value |  |  |  |  |  |  |  | $ 1,400 |  |  |
Indemification Agreement, Settlement of Warrants (in shares) |  |  |  |  |  |  |  | 64,086 |  |  |
Warrants Issued to Acquire Swire Pacific Offshore Holdings Ltd. [Member] | Swire Pacific Offshore Holdings Ltd. [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) |  |  |  | 8,100,000 |  |  |  | 8,100,000 |  |  |
Share Repurchase Program [Member] |  |  |  |  |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  |  |  |  |  |  | $ 35,000
Stock Repurchased and Retired During Period, Shares (in shares) |  |  |  |  | 590,499 |  |  |  |  |  |
Stock Repurchased and Retired During Period, Value |  |  |  |  | $ 35,400 |  |  |  |  |  |
Shares Acquired, Average Cost Per Share (in dollars per share) |  |  |  |  | $ 59.91 |  |  |  |  |  |

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