Note 2 - Business Segments, Geographic Data and Sales by Major Customers - Information by Region (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025	Dec. 31, 2025
Long-lived Assets	$ 59,960		$ 59,960		$ 65,784
Net sales	254,222	$ 211,210	500,136	$ 443,557
UNITED STATES
Long-lived Assets	35,741		35,741		42,788
Net sales	202,837	154,516	385,724	330,450
CHINA
Long-lived Assets	18,893		18,893		16,659
Europe [Member]
Net sales	29,686	29,408	63,086	55,875
UNITED KINGDOM
Long-lived Assets	2,811		2,811		3,073
South America [Member]
Net sales	10,771	14,066	21,870	27,572
HONG KONG
Long-lived Assets	1,316		1,316		1,853
CANADA
Net sales	5,960	9,237	16,032	21,342
Other Countries [Member]
Long-lived Assets	1,199		1,199		$ 1,411
Asia [Member]
Net sales	2,745	1,526	6,896	3,725
Oceania [Member]
Net sales	1,616	2,095	5,618	3,594
Middle East and Africa [Member]
Net sales	$ 607	$ 362	$ 910	$ 999