Business Segments (Tables)

9 Months Ended

Sep. 29, 2018

Segment Reporting [Abstract]

Revenue Information by Geographic Region

Revenue information shown by geographic region, based on the sales destination, is as follows:

	Three Months Ended				Nine Months Ended
(in thousands)	September 29, 2018		September 30, 2017		September 29, 2018		September 30, 2017
United States	$	6,182	$	6,294	$	16,156	$	17,880
Europe		2,020		1,727		6,680		5,502
Rest of Americas		554		689		1,862		1,853
Asia/Pacific Rim		2,564		2,155		6,435		6,115
	$	11,320	$	10,865	$	31,133	$	31,350