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Note 1 - Summary of Significant Accounting Policies - Inventories (Details) - USD ($)
$ in Thousands
Jun. 26, 2021
Dec. 26, 2020
Raw materials and purchased parts $ 89,037 $ 83,755
Work in process 48,663 44,315
Finished goods 18,150 14,430
Total inventories $ 155,850 $ 142,500 [1]
[1] Derived from December 26, 2020 audited financial statements