Revenue Concentrations, Significant Customers, and Geographic Areas (Tables)

12 Months Ended

Dec. 31, 2018

REVENUE CONCENTRATIONS, SIGNIFICANT CUSTOMERS, AND GEOGRAPHIC AREAS [Abstract]

Summary Of Revenue By Product Line

The following summarizes our revenue by product line:

(In thousands)	2018		2017
High Precision 3D and 2D Sensors	$	21,532	$	17,079
Semiconductor Sensors		13,606	11,059
Inspection and Metrology Systems		29,582	25,195
Total	$	64,720	$	53,333

Summary Of Certain Significant Customer Information

The following summarizes certain significant customer information:

(In thousands)	Significant Customer	Percentage of Revenues
Year ended December 31, 2018	A	10	%
	B	10	%
Year ended December 31, 2017	A	12	%

Schedule Of Revenue By Geographic Area

Revenue by geographic area is summarized as follows:

	Year Ended December 31,
(In thousands)	2018		2017
United States	$	18,355	$	15,361
Netherlands		3,077	2,786
Other Europe		10,041	8,948
China		10,438	6,899
Singapore		2,948	4,424
South Korea		5,375	2,643
Japan		8,097	7,177
Other Asia		4,464	3,685
Other		1,925	1,410
Total revenues	$	64,720	$	53,333

Schedule Of Long-lived Assets Attributable To Each Geographic Area's Operations

Long-lived assets at December 31, 2018 and 2017 are as follows:

(In thousands)	2018		2017
Long-lived assets:
United States	$	2,867	$	2,348
Europe	2		4
Asia and other	326		335
Total long-lived assets	$	3,195	$	2,687