Note 4 - Other Financial Information - Interest and Other Income (Expense), Net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Interest income	$ 1,176	$ 2,757	$ 5,057	$ 6,089
Other loss, net	(197)	(158)	(665)	(167)
Total interest and other income, net	$ 979	$ 2,599	$ 4,392	$ 5,922