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Property, Plant and Equipment, Net (Tables)
12 Months Ended
Dec. 29, 2017
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Table Text Block]
Property, plant and equipment, net consisted of the following at December 29, 2017 and December 30, 2016 (in thousands):
 
 
 
2017
 
2016
 
Machinery and equipment
 
$
16,562
 
$
19,807
 
Furniture and fixtures
 
 
9,201
 
 
8,025
 
Leasehold improvements
 
 
9,631
 
 
9,179
 
 
 
 
35,394
 
 
37,011
 
Less accumulated depreciation
 
 
25,618
 
 
25,221
 
Total
 
$
9,776
 
$
11,790