Revenue Concentrations, Significant Customers, and Geographic Areas

12 Months Ended

Dec. 31, 2017

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

REVENUE CONCENETRATIONS, SIGNIFICANT CUSTOMERS, AND GEOGRAPHIC AREAS

NOTE 13 – REVENUE CONCENTRATIONS, SIGNIFICANT CUSTOMERS, AND GEOGRAPHIC AREAS

The following summarizes our revenue by product line:

(In thousands)	2017		2016		2015
High precision 3D and 2D sensors	$	17,079	$	18,797	$	13,022
Semiconductor sensors		11,059	10,061		7,677
Inspection systems		19,468	28,680		13,578
Metrology products and services		5,727	8,702		6,853
Total	$	53,333	$	66,240	$	41,130

The following summarizes certain significant customer information:

(In thousands)	Significant Customer	Percentage of Revenues
Year ended December 31, 2017	A	12	%
Year ended December 31, 2016	B	12	%
	C	11	%
Year ended December 31, 2015	A	10	%
	B	11	%

Export sales as a percentage of total sales was 71% in 2017, 81% in 2016 and 72% in 2015. 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.

As of December 31, 2017, accounts receivable from significant customer A were $814,000.

Revenue by geographic area is summarized as follows:

	Year Ended December 31,
(In thousands)	2017		2016		2015
United States	$	15,361	$	12,754	$	11,452
Netherlands		2,786	8,033		4,533
Other Europe		8,948	9,183		7,462
China		6,899	14,626		4,060
Singapore		4,424	2,767		1,010
South Korea		2,643	7,634		3,462
Japan		7,177	4,505		4,802
Other Asia		3,685	5,106		2,580
Other		1,410	1,632		1,769
Total revenues	$	53,333	$	66,240	$	41,130

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, 2017 and 2016 are as follows:

(In thousands)	2017		2016
Long-lived assets:
United States	$	2,348	$	2,721
Europe	4		7
Asia and other	335		148
Total long-lived assets	$	2,687	$	2,876