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Note 12 - Segments (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2025
Notes Tables |
Schedule of Segment Reporting Information, by Segment [Table Text Block] |
|  | Year Ended December 31, |
|  | 2025 |  |  | 2024 |
Grant revenue |  | $ | 4,006,510 |  |  | $ | 9,737,974 |
Research and development expenses: |  |  |  |  |  |  |  |
Dementia with Lewy bodies |  |  | 7,052,512 |  |  |  | 12,102,842 |
Frontotemporal disorders (incl. nfvPPA) |  |  | 1,217,784 |  |  |  | 36,853 |
Recovery after stroke |  |  | 1,427,966 |  |  |  | 391,659 |
Other clinical* and nonclinical |  |  | 2,504,863 |  |  |  | 2,499,202 |
Personnel costs, excluding stock-based compensation |  |  | 5,745,558 |  |  |  | 2,187,221 |
Stock-based compensation |  |  | 482,669 |  |  |  | 218,822 |
Other research and development expenses, including CMC** |  |  | 3,385,720 |  |  |  | 1,361,744 |
Total research and development expenses |  |  | 21,817,072 |  |  |  | 18,798,343 |
General and administrative expenses: |  |  |  |  |  |  |  |
Personnel costs, excluding stock-based compensation |  |  | 4,988,705 |  |  |  | 3,995,114 |
Stock-based compensation |  |  | 965,965 |  |  |  | 1,186,900 |
Professional fees |  |  | 2,752,710 |  |  |  | 2,684,386 |
Insurance, taxes and similar fees |  |  | 1,166,374 |  |  |  | 985,481 |
Other general and administrative expenses, including IT, facilities, supplies and similar costs*** |  |  | 610,561 |  |  |  | 314,879 |
Total general and administrative expenses |  |  | 10,484,315 |  |  |  | 9,166,760 |
Other income |  |  | 1,328,510 |  |  |  | 1,936,436 |
Net loss |  | $ | (26,966,367 | ) |  | $ | (16,290,693 | )

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-25 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 + Details
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