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Property, Plant and Equipment (Tables)
9 Months Ended
Sep. 27, 2013
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Table Text Block]
Property, plant and equipment consisted of the following (in thousands):
 
 
 
 
September 27,
 
 
December 28,
 
 
 
 
2013
 
 
2012
 
Machinery and equipment
 
$
15,825
 
$
14,734
 
Furniture and fixtures
 
 
3,384
 
 
3,483
 
Leasehold improvements
 
 
6,585
 
 
5,281
 
 
 
 
25,794
 
 
23,498
 
Less: accumulated depreciation
 
 
19,282
 
 
18,059
 
 
 
$
6,512
 
$
5,439