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Supplemental Disclosures to Consolidated Statements of Cash Flows (Tables)
 12 Months Ended
Jan. 01, 2019
Supplemental Cash Flow Elements [Abstract]  
Schedule of Cash Flow, Supplemental Disclosures The following table presents the supplemental disclosures to the Consolidated Statements of Cash Flows for 2018, 2017 and 2016 (in thousands):
 
 
2018
 
2017
 
2016
Interest paid (net of amounts capitalized)
 
$
3,800

 
$
3,482

 
$
2,394

Income taxes paid (refunded)
 
42

 
(158
)
 
(427
)
Changes in purchases of property and equipment accrued in accounts payable, net
 
(1,339
)
 
(842
)
 
(1,431
)
Conversion of Series A convertible preferred stock to common stock
 
—

 
18,500

 
—