Note 11 - Accumulated Other Comprehensive Income (Loss) - Reclassifications Out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cost of revenues	$ (11,648)	$ (15,131)	$ (10,378)
Research and development	(72,689)	(70,317)	(69,089)
Sales and marketing	(11,042)	(11,475)	(12,233)
General and administrative	(14,913)	(14,183)	(12,790)
Total, before income taxes	(8,205)	4,197	9,220
Taxes on income	10,232	18,075	6,823
Net loss	(11,878)	(23,183)	396
Financial income (loss), net	5,264	2,812	197
Income tax expense (benefit)	10,232	18,075	6,823
Reclassification out of Accumulated Other Comprehensive Income [Member]
Net loss	(989)	(1,205)	158
Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized Gains (Losses) on Cash Flow Hedges [Member]
Cost of revenues	(21)	(20)	4
Research and development	(933)	(1,135)	144
Sales and marketing	(23)	(32)	4
General and administrative	(101)	(105)	13
Total, before income taxes	(1,078)	(1,292)	165
Taxes on income	1	(138)	20
Net loss	(1,079)	(1,154)	145
Income tax expense (benefit)	1	(138)	20
Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized Gains (Losses) on Available-for-sale Marketable Securities [Member]
Taxes on income	0	(4)	0
Net loss	90	(51)	13
Financial income (loss), net	90	(55)	13
Income tax expense (benefit)	$ 0	$ (4)	$ 0