Revenue Concentrations, Significant Customers And Geographic Areas (Tables)

9 Months Ended

Sep. 30, 2020

Segment Reporting [Abstract]

Summary Of Revenue By Product Line

The following summarizes our revenue by product line:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2020		2019		2020		2019
High Precision 3D and 2D Sensors	$	3,645	$	3,170	$	12,512	$	8,923
Inspection and Metrology Systems		13,339		5,545		29,361		22,554
Semiconductor Sensors		3,836		3,676		11,372		10,934
Total	$	20,820	$	12,391	$	53,245	$	42,411

Schedule of Sales By Geographic Area

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2020		2019		2020		2019
Americas	$	94	$	418	$	592	$	994
Europe		2,221		1,926		6,693		6,189
China		4,829		2,135		12,662		8,469
Taiwan		2,237		842		4,716		3,986
Other Asia		7,706		4,005		16,864		10,824
Other		453		248		1,167		632
Total export sales	$	17,540	$	9,574	$	42,694	$	31,094