Revenue Concentrations, Significant Customers, and Geographic Areas

12 Months Ended

Dec. 31, 2018

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

REVENUE CONCENETRATIONS, SIGNIFICANT CUSTOMERS, AND GEOGRAPHIC AREAS

NOTE 12 – REVENUE CONCENTRATIONS, SIGNIFICANT CUSTOMERS, AND GEOGRAPHIC AREAS

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

Revenue from sales of high precision 3D and 2D sensors based on our 3D Multi-Reflection Suppression (MRS) technology was $7.9 million in 2018 and $4.4 million in 2017. Revenue from sales of inspection and metrology systems that incorporate our 3D MRS sensor technology was $13.3 million in 2018 and $10.0 million in 2017.

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	%

As of December 31, 2018, accounts receivable from significant customer A were $922,000, and accounts receivable from significant customer B were $1.4 million.

Export sales as a percentage of total sales was 72% in 2018 and 71% in 2017. Export sales are attributed to the country where the product is shipped. Substantially all of our export sales are negotiated, invoiced and paid in U.S. dollars.

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

Long-lived assets include equipment and leasehold improvements and intangible and other 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