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Note 2 - Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2024

Notes Tables

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

		Three Months Ended
		March 31,
		2024				2023
Research and development		$	255			$	623
General and administrative			126				82
Total share-based compensation expense		$	381			$	705

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		Three Months Ended
		March 31,
		2024				2023
Dividend yield			-				-
Expected volatility			80	%			82	%
Risk-free interest rate			3.8%-4.3	%			3.5%-4.2	%
Expected life (in years)			5.38-6.25				5.63-6.25
Weighted-average grant date fair value per share		$	3.91			$	3.84

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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+ References

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-Topic 718
-SubTopic 10
-Subparagraph (f)(2)
-Name Accounting Standards Codification
-Paragraph 2
-Section 50
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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