Revenue Concentrations, Significant Customers And Geographic Areas (Tables)

9 Months Ended

Sep. 30, 2021

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)	2021		2020		2021		2020
High Precision 3D and 2D Sensors	$	5,453	$	3,645	$	18,941	$	12,512
Inspection and Metrology Systems		14,914		13,339		33,834		29,361
Semiconductor Sensors		7,395		3,836		17,923		11,372
Total	$	27,762	$	20,820	$	70,698	$	53,245

Schedule of Sales By Geographic Area

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2021		2020		2021		2020
Americas	$	620	$	94	$	2,145	$	592
Europe		3,024		2,221		9,541		6,693
China		9,502		4,829		23,210		12,662
Taiwan		2,081		2,237		3,754		4,716
Other Asia		9,142		7,706		20,825		16,864
Other		40		453		616		1,167
Total export sales	$	24,409	$	17,540	$	60,091	$	42,694