Revenue Concentrations, Significant Customers And Geographic Areas (Tables)

9 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

Summary Of Revenue By Product Line

The following table summarizes our revenue by product line:  

	Three Months Ended September 30,					Nine Months Ended September 30,
(In thousands)	2018		2017		2018		2017
High Precision 3D and 2D Sensors	$	5,388	$	4,030	$	15,696	$	13,569
Semiconductor Sensors		3,463		2,228		10,564		7,698
Inspection and Metrology Systems		7,832		5,570		20,397		18,890
Total	$	16,683	$	11,828	$	46,657	$	40,157

Schedule of Sales By Geographic Area

Export sales by geographic area are summarized below:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2018		2017		2018		2017
Americas	$	355	$	159	$	568	$	976
Europe		4,093		2,543		9,360		9,114
Asia		7,090		4,959		22,948		18,933
Other		348		103		548		247
Total export sales	$	11,886	$	7,764	$	33,424	$	29,270