Note 14 - Taxes on Income - Significant Components of the Company's Deferred Tax Assets (Details) - USD ($) $ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets
Operating loss carryforward		$ 9,493	$ 8,778
Accrued expenses and deferred revenues		1,783	1,455
Temporary differences related to R&D expenses		4,275	3,123
Equity-based compensation		3,667	3,396
Operating leases		1,619	1,546
Tax credit carry forward		7,214	5,666
Other		202	502
Total gross deferred tax assets		28,253	24,466
Valuation allowance		(15,844)	(12,315)
Net deferred tax assets		12,409	12,151
Deferred tax liabilities
Operating leases		1,583	1,546
Total deferred tax liabilities		1,583	1,546
Net deferred tax assets (*)	[1]	$ 10,826	$ 10,605

[1] $161 and $45 net deferred taxes for the years ended December 31, 2019 and 2020, respectively, are from domestic jurisdictions.