Note 4 - Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2026

Notes Tables

Marketable Securities [Table Text Block]

		Fair Value Measurements as of March 31, 2026 Using:
		Amortized Cost				Unrealized gains				Unrealized Losses				Fair Value
Assets
Corporate bonds		$	100,255			$	71			$	(229	)		$	100,097
Commercial paper			11,997				2				(6	)			11,993
Certificates of deposit			18,919				2				(9	)			18,912
U.S. government treasuries			1,678				—				—				1,678
Asset-backed securities			6,829				12				(2	)			6,839
Total assets		$	139,678			$	87			$	(246	)		$	139,519

		Fair Value Measurements as of December 31, 2025 Using:
		Amortized Cost				Unrealized gains				Unrealized Losses				Fair Value
Assets
Corporate bonds		$	86,417			$	223			$	(4	)		$	86,636
Commercial paper			14,950				10				—				14,960
Certificates of deposit			68,943				34				—				68,977
U.S. government treasuries			6,010				16				—				6,026
Asset-backed securities			1,663				1				—				1,664
Total assets		$	177,983			$	284			$	(4	)		$	178,263

Investments Classified by Contractual Maturity Date [Table Text Block]

		As of
		March 31, 2026				December 31, 2025
Maturing in one year or less		$	73,700			$	126,119
Maturing after one year through two years			65,819				52,144
Total		$	139,519			$	178,263