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Note 6 - Equity Incentive Plans (Tables) | 9 Months Ended
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Sep. 30, 2024
Table Text Block [Abstract] |
Schedule of Stock-based Compensation for all Stock Awards | The allocation of stock-based compensation for all stock option, RSU and PSU awards is as follows (in thousands):
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
Research and development expense |  | $ | 30 |  |  | $ | 70 |  |  | $ | 239 |  |  | $ | 186 |
General and administrative expense |  |  | 62 |  |  |  | 122 |  |  |  | 324 |  |  |  | 243 |
Total |  | $ | 92 |  |  | $ | 192 |  |  | $ | 563 |  |  | $ | 429 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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