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Note 14 - Equity Incentive Plans (Tables) | 12 Months Ended
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Dec. 31, 2025
Notes Tables |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | Years Ended December 31, |
|  | 2025 |  |  | 2024 |  |  | 2023 |
Cost of revenue |  | $ | 292 |  |  | $ | 328 |  |  | $ | 575 |
Research and development |  |  | 1,232 |  |  |  | 1,612 |  |  |  | 1,934 |
Selling, general and administrative |  |  | 8,692 |  |  |  | 10,218 |  |  |  | 11,028 |
Total stock-based compensation expense |  | $ | 10,216 |  |  | $ | 12,158 |  |  | $ | 13,537 |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  | Number of Options |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Term (in years) |  |  | Aggregate Intrinsic Value (in thousands) |
Outstanding as of December 31, 2024 |  |  | 2,089,040 |  |  | $ | 32.07 |  |  |  |  |  |  |  |  |
Granted |  |  | 16,300 |  |  | $ | 12.71 |  |  |  |  |  |  |  |  |
Exercised |  |  | - |  |  | $ | - |  |  |  |  |  |  |  |  |
Forfeited and canceled |  |  | (340,315 | ) |  | $ | 34.51 |  |  |  |  |  |  |  |  |
Outstanding as of December 31, 2025 |  |  | 1,765,025 |  |  | $ | 31.42 |  |  |  | 6.3 |  |  | $ | 1 |
Vested, December 31, 2025 |  |  | 1,345,721 |  |  | $ | 32.60 |  |  |  | 5.8 |  |  | $ | - |
Vested or expected to vest, December 31, 2025 |  |  | 1,765,025 |  |  | $ | 31.42 |  |  |  | 6.3 |  |  | $ | 1 |
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
| 2025 |  | 2024 |  | 2023
Risk-free interest rate | 3.71% | - | 3.99% |  | 3.48% | - | 4.62% |  | 3.52% | - | 4.64%
Expected stock price volatility | 41.64% | - | 45.68% |  | 41.54% | - | 48.19% |  | 48.19% | - | 49.44%
Expected life of options (in years) |  | 4.5 |  |  |  | 4.5 |  |  |  | 4.5 |
Expected dividend yield |  | 0.0% |  |  |  | 0.0% |  |  |  | 0.0% |
Fair value per option |  | $5.13 |  |  |  | $10.52 |  |  |  | $11.45 |
Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] |
|  | Number of Shares |  |  | Weighted Average Fair Value |
Outstanding as of December 31, 2024 |  |  | 836,562 |  |  | $ | 26.70 |
Granted |  |  | 569,042 |  |  | $ | 14.85 |
Vested |  |  | (317,850 | ) |  | $ | 25.86 |
Forfeited and cancelled |  |  | (134,041 | ) |  | $ | 23.09 |
Outstanding as of December 31, 2025 |  |  | 953,713 |  |  | $ | 20.41 |
Share-Based Payment Arrangement, Performance Shares, Activity [Table Text Block] |
|  |  |  |  |  | Weighted Average |
|  | Number of |  |  | Grant Date |
|  | Shares |  |  | Fair Value |
Outstanding as of December 31, 2024 |  |  | - |  |  | $ | - |
Granted |  |  | 290,792 |  |  | $ | 15.36 |
Vested |  |  | - |  |  | $ | - |
Forfeited and cancelled |  |  | (11,038 | ) |  | $ | 15.42 |
Outstanding as of December 31, 2025 |  |  | 279,754 |  |  | $ | 15.36 |

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