Inventories (Tables)

3 Months Ended

Mar. 21, 2015

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

In thousands	March 21,  2015		December 27,  2014		March 22,  2014
Raw materials	$	3,870	$	3,950	$	4,523
Work in progress		4,306		3,967		4,280
Finished goods		21,805		15,858		14,590
	$	29,981	$	23,775	$	23,393