Note 8 - Income Taxes - Reconciliation of Unrecognized Tax Benefit (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Unrecognized tax benefits at beginning of year	$ 10,170	$ 8,925
Increases related to current year tax positions	4,366	1,575
Increases related to prior year tax positions	2,993	1,129
Decreases related to prior year tax positions	(153)	(1,459)
Unrecognized tax benefits at beginning of year	$ 17,376	$ 10,170