Inventories (Tables)

6 Months Ended

Jul. 15, 2017

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

	July 15,		December 31,		July 9,
In thousands	2017		2016		2016
Raw materials	$	4,356	$	4,781	$	4,858
Work in progress		4,134		3,671		4,690
Finished goods		28,980		25,350		27,972
	$	37,470	$	33,802	$	37,520