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Note 6 - Stockholders' Equity and Stock-based Compensation Expense (Tables)

9 Months Ended

Sep. 30, 2025

Notes Tables

Share-Based Payment Arrangement, Activity [Table Text Block]

		Stock Options				Performance Awards
Outstanding as of December 31, 2024			4,463,028				7,142
Options granted			1,567,000				—
Options exercised			(225,209	)			—
Options forfeited/canceled			(1,695,726	)			—
Outstanding as of September 30, 2025			4,109,093				7,142

Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

		Three months ended								Nine months ended
		September 30,								September 30,
		2025				2024				2025				2024
Research and development		$	1,294			$	1,675			$	4,828			$	3,620
General and administrative			3,108				3,934				9,380				6,927
Total stock-based compensation expense		$	4,402			$	5,609			$	14,208			$	10,547

X

- 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

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-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

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- Definition

Tabular disclosure of activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, and weighted-average grant date fair value.

+ References

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