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Other Non-Current Liabilities (Tables)
 3 Months Ended
Apr. 01, 2017
Other Liabilities, Long Term [Abstract]  
Components Of Other Liabilities Long Term Table [Table Text Block]
Other non-current liabilities consist of the following (in thousands):
 
April 1,
2017
 
December 31,
2016
Unrecognized tax benefit
$
13,827

 
$
13,442

Deferred rent, long-term
1,309

 
558

Deferred tax liability, long-term
339

 
340

Other
248

 
247

     Total other non-current liabilities
$
15,723

 
$
14,587