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Long-Term Debt and Credit Arrangements (Tables)
6 Months Ended
Jun. 30, 2018
Debt Disclosure [Abstract]  
Schedule of Long-term Debt Instruments [Table Text Block]
Long-term debt consists of the following:
 
June 30,
2018
 
December 30,
2017
Revolving credit facility
$
106,142

 
$
97,708

Notes payable - buildings
12,053

 
12,419

Acquisition note payable - Robertex

 
791

Notes payable - equipment and other
6,224

 
8,474

Capital lease obligations
14,330

 
14,530

Deferred financing costs, net
(575
)
 
(665
)
Total long-term debt
138,174

 
133,257

Less: current portion of long-term debt
7,982

 
9,811

Long-term debt
$
130,192

 
$
123,446