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Note 14 - Taxes on Income - Income Taxes Paid (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Federal income taxes	$ 0
State and local income taxes	(98)
Total cash paid for income taxes, net of refunds	4,182	$ 6,261	$ 7,398
State Administration of Taxation, China [Member]
Foreign income taxes	4,557
Ministry of the Economy, Finance and Industry, France [Member]
Foreign income taxes	(1,241)
Revenue Commissioners, Ireland [Member]
Foreign income taxes	252
South Korea Tax Authority [Member]
Foreign income taxes	356
Other Foreign Authority [Member]
Foreign income taxes	$ 356