Note 2 - Significant Accounting Policies - Calculation of Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended | 9 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
Sep. 30, 2026 |
Jun. 30, 2026 |
Mar. 31, 2026 |
Sep. 30, 2025 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Net loss | $ (10,726) | $ (8,603) | $ (10,331) | $ (10,807) | $ (44,224) | $ (23,403) | $ (29,660) | $ (78,434) |
| Shares used in computing net loss per share, basic and diluted | $ 48,461 | $ 48,308 | $ 48,359 | $ 48,293 | ||||
| Net loss per share, basic and diluted (in dollars per share) | $ (0.22) | $ (0.22) | $ (0.61) | $ (1.62) | ||||
| Share-Based Payment Arrangement, Option [Member] | ||||||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 3,967 | 4,101 | 4,061 | 3,975 | ||||
| Warrant [Member] | ||||||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 0 | 7 | 0 | 7 | ||||
| X | ||||||||||
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise stock options, restrictive stock units (RSUs), convertible preferred stock of an employee stock ownership plan (ESOP), and other dilutive convertible securities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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- Details
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