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Note 2 - Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2025

Notes Tables

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

September 30, 2025		Level 1				Level 2				Level 3				Total
Money market securities		$	1,604			$	—			$	—			$	1,604
Commercial paper			—				4,390				—				4,390
Federal agency notes			—				3,212				—				3,212
U.S. treasuries			—				1,996				—				1,996
Total		$	1,604			$	9,598			$	—			$	11,202

December 31, 2024		Level 1				Level 2				Level 3				Total
Money market securities		$	112			$	—			$	—			$	112
Commercial paper			—				10,633				—				10,633
U.S. treasuries			—				9,192				—				9,192
Federal agency notes			—				5,317				—				5,317
Total		$	112			$	25,142			$	—			$	25,254

Investments Classified by Contractual Maturity Date [Table Text Block]

		Maturities by Period
						Less than				1-5				5-10				More than
		Total				1 year				years				years				10 years
Cash equivalents and marketable securities		$	11,202			$	11,202			$	—			$	—			$	—

X

- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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X

- Definition

Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.

+ References

No definition available.

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X

- References

No definition available.

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