Note 12 - Taxes on Income - Net Deferred Taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Foreign tax credit carryforwards	$ 4,101	$ 507
Net operating loss carryforwards	19,079	22,909
Accrued expenses	15,281	12,987
Other	8,431	8,652
Total gross deferred income tax assets	46,892	45,055
Less valuation allowance	(34,247)	(28,451)
Net deferred income tax assets	12,645	16,604
Property, plant and equipment	(5,689)	(6,038)
Intangible assets	(12,203)	(10,609)
Other	4,791	6,757
Total deferred income tax liabilities	(22,683)	(23,404)
Net deferred income tax liabilities	(10,038)	(6,800)
Deferred income tax assets	1,216	1,561
Noncurrent deferred income tax liabilities, net	(11,254)	(8,361)
Net deferred income tax liabilities	$ 10,038	$ 6,800