Note 6 - Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2026

Notes Tables

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

						*Fair Value Measurements Using*
						*Quoted Prices*				*Significant*
						*in Active*				*Other*
		*Balance as of*				*Markets for*				*Observable*
		*March 31,*				*Identical Assets*				*Inputs*
		*2026*				*(Level 1)*				*(Level 2)*
Assets:
Cash equivalents
Money market funds		$	4			$	4			$	—
U.S. government			9,439				9,439				—
Total cash equivalents			9,443				9,443				—
Marketable securities
U.S. government			24,805				24,805				—
Corporate bonds			3,549				—				3,549
Commercial paper			1,435				—				1,435
Certificates of deposit			517				—				517
Total marketable securities			30,306				24,805				5,501
Total assets at fair value		$	39,749			$	34,248			$	5,501

						*Fair Value Measurements Using*
						*Quoted Prices*				*Significant*
						*in Active*				*Other*
		*Balance as of*				*Markets for*				*Observable*
		*December 31,*				*Identical Assets*				*Inputs*
		*2025*				*(Level 1)*				*(Level 2)*
Assets:
Cash equivalents
Money market funds		$	39,618			$	39,618			$	—
Marketable securities
Corporate bonds			6,058				—				6,058
Commercial paper			1,695				—				1,695
Certificates of deposit			1,958				—				1,958
Total marketable securities		$	9,711			$	—			$	9,711
Total assets at fair value		$	49,329			$	39,618			$	9,711