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Organization and Summary of Significant Accounting Policies - Inventories (Details) - USD ($)
$ in Thousands
Jun. 27, 2021
Jun. 28, 2020
Jun. 30, 2019
Inventories      
Finished products $ 20,633 $ 13,142  
Work in process 14,707 11,815  
Purchased materials 40,900 34,333  
Inventory, Gross, Total 76,240 59,290  
Excess and obsolete reserve (5,380) (4,890) $ (4,225)
Inventories, net $ 70,860 $ 54,400