Quarterly report pursuant to Section 13 or 15(d)

Note 9 - Long-lived Assets in Individual Geographic Areas (Details)

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Note 9 - Long-lived Assets in Individual Geographic Areas (Details) - USD ($)
$ in Thousands
Sep. 27, 2015
Dec. 28, 2014
Reportable Geographical Components [Member] | MEXICO    
Long-lived assets [1] $ 11,017 $ 12,556
Reportable Geographical Components [Member] | Asia [Member]    
Long-lived assets [1] 3,185 3,001
Reportable Geographical Components [Member] | UNITED STATES    
Long-lived assets [1] 2,137 1,776
Reportable Geographical Components [Member]    
Long-lived assets [1] 16,339 17,333
Corporate, Non-Segment [Member]    
Long-lived assets [1] 222 257
Long-lived assets [1] $ 16,561 $ 17,590
[1] Property, plant and equipment information is based on the principal location of the asset.