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Other Noncurrent Assets (Tables)
 12 Months Ended
Dec. 30, 2018
Other Noncurrent Assets Disclosure [Abstract]  
Schedule of Other Assets, Noncurrent [Table Text Block]
 
 
December 30,
2018
 
December 31,
2017
 
 
(in thousands)
Internally developed software, net (1)
 
$
14,756

 
$
17,167

Deferred charges (2)
 
1,122

 
24

Deposits
 
848

 
1,125

Other
 
1,999

 
1,161

Total other noncurrent assets
 
$
18,725

 
$
19,477