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Note 3 - Revenue Recognition - Revenue Disaggregated by the Major Types of Goods and Services Sold (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Net sales $ 100,784 $ 96,970 $ 298,575 $ 262,555
Product [Member]        
Net sales 98,261 92,860 291,612 251,996
Tooling and Machinery [Member]        
Net sales 1,431 2,659 2,985 5,984
Engineering and Development [Member]        
Net sales $ 1,092 $ 1,451 $ 3,978 $ 4,575