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Note 4 - 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, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
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, 2024
Dec. 31, 2023
Dec. 31, 2022
Net sales $ 144,070 $ 145,165 $ 110,177 $ 105,009 $ 101,498 $ 100,784 $ 100,037 $ 97,753 $ 91,237 $ 96,970 $ 94,343 $ 71,242 $ 504,421 $ 400,072 $ 353,792
Product [Member]                              
Net sales                         491,382 391,460 342,742
Tooling and Machinery [Member]                              
Net sales                         8,320 3,468 6,307
Engineering and Development [Member]                              
Net sales                         $ 4,719 $ 5,144 $ 4,743