Inventories, Net (Tables)

3 Months Ended

Mar. 31, 2017

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories, net are stated at the lower of cost and net realizable value, determined on a first-in, first-out basis, and consisted of the following (in thousands):

	March 31,		December 30,
	2017		2016
Raw materials and purchased parts	$	2,090	$	2,264
Work-in-process		1,744		1,924
Finished goods		13,711		14,268
		17,545		18,456
Less: inventory reserves		2,899		3,631
	$	14,646	$	14,825