Annual report pursuant to Section 13 and 15(d)

Inventories (Details)

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Inventories (Details) - USD ($)
$ in Thousands
Dec. 28, 2019
Dec. 29, 2018
Summary of inventories    
Raw materials $ 34,340 $ 39,086
Work in process 28,667 26,871
Finished goods 29,711 23,963
Provision for obsolete and slow moving inventory (7,523) (3,931)
Total $ 85,195 $ 85,989