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Note 6 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024 | Aug. 02, 2024 | Dec. 31, 2023 | Sep. 02, 2022
Preferred Stock, Shares Authorized (in shares) | 10,000,000 |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ 0.001 |  |  |  |  |
Common Stock, Shares Authorized (in shares) | 190,000,000 |  | 175,000,000 |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ 0.001 |  | $ 0.001 |  |  |
Treasury Stock, Shares, Acquired (in shares) | 199,965 |  |  |  |  |
Treasury Stock, Value, Acquired, Cost Method | $ 6,123 |  |  |  |  |
Treasury Stock, Common, Shares (in shares) | 567,598 |  | 367,903 |  |  |
Treasury Stock, Value | $ 15,100 |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in shares) | 4,465,216 | 4,694,529 | 4,470,216 |  | 4,697,029 |
Share-Based Payment Arrangement, Expense | $ 15,000 | $ 9,300 |  |  |  |
Warrants to Purchase Common Stock, Amended Loan Agreement [Member] |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | 115,042 |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ 17.95 |  |  |  |  |
Warrants to Purchase Common Stock, First Amendment Loan Agreement [Member] |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | 50,172 |  |  |  |  |
Warrants to Purchase Common Stock, First Amendment [Member] |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ 14.7 |  |  |  |  |
Stock-based Compensation Expense Capitalized Into Inventory [Member] |  |  |  |  |  |
Share-Based Payment Arrangement, Expense | $ 1,000 | $ 1,000 |  |  |  |
Restricted Stock [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares) | 12,939,047 | 11,398,479 | 11,843,586 |  | 9,639,068 |
Share-Based Payment Arrangement, Expense | $ 14,600 | $ 8,500 |  |  |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ 75,100 |  |  |  |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) | 3 years 3 months 18 days |  |  |  |  |
Milestone Based Restricted Stock [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares) | 1,185,000 |  |  |  |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ 22,700 |  |  |  |  |
Market-based Restricted Stock [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares) | 3,817,678 |  |  |  |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ 49,700 |  |  |  |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) | 3 years 6 months |  |  |  |  |
Share-Based Payment Arrangement, Option [Member] |  |  |  |  |  |
Share-Based Payment Arrangement, Expense | $ 400 | $ 800 |  |  |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ 1,500 |  |  |  |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) | 1 year 3 months 18 days |  |  |  |  |
The 2012 Incentive Plan [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in shares) | 2,197,716 |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares) | 0 |  |  |  |  |
The 2012 Incentive Plan [Member] | Restricted Stock [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares) | 3,466,191 |  |  |  |  |
The 2022 Incentive Plan [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in shares) | 2,267,500 |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares) | 1,705,982 |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) | 17,000,000 |  |  |  |  |
The 2022 Incentive Plan [Member] | Restricted Stock [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares) | 9,472,856 |  |  |  |  |
Maximum [Member] |  |  |  |  |  |
Share Repurchase Program, Authorized, Amount |  |  |  | $ 100,000 |  |
The 2022 ATM [Member] |  |  |  |  |  |
Common Stock, Commission Rate |  |  |  |  |  | 3.00%

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