Note 3 - Revenue Recognition - Revenue Disaggregated by the Major Types of Goods and Services Sold (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net sales	$ 101,498	$ 100,784	$ 100,037	$ 97,753	$ 91,237	$ 96,970	$ 94,343	$ 71,242	$ 400,072	$ 353,792	$ 206,320
Product [Member]
Net sales									391,460	342,742	201,248
Tooling and Machinery [Member]
Net sales									3,468	6,307	1,814
Engineering and Development [Member]
Net sales									$ 5,144	$ 4,743	$ 3,258