Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

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Inventories (Details) - USD ($)
$ in Thousands
Jun. 27, 2015
Dec. 27, 2014
Summary of inventories    
Raw materials $ 5,578 $ 6,329
Work in process 3,890 3,979
Finished goods 3,616 4,433
Provision for slow moving inventory (654) (643)
Total $ 12,430 $ 14,098