Segment, Customer Concentration and Geographical Information (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Revenues Generated by Each Business Unit

The following table shows the revenues generated by each business unit (in thousands):

	Year Ended December 31,
	2017		2016		2015
Wireless	$	18,342	$	23,086	$	33,553
Graphics		4,632		5,149		5,954
Total revenues		22,974		28,235		39,507
Cost of revenues		5,082		7,564		8,152
Gross profit	$	17,892	$	20,671	$	31,355

Company's Customers that Represent 10% or More of Company's Revenues

A summary of the Company’s customers that represent 10% or more of the Company’s revenues is as follows:

	Year Ended December 31,
	2017			2016			2015
Wireless:
Sprint (& affiliates)		61	%		63	%		65	%
Graphics:
FastSpring		14	%		14	%		11	%

Company Revenue in Different Geographic Locations

Revenues attributed to the geographic location of the customer’s bill-to address, were as follows (in thousands):

	Year Ended December 31,
	2017		2016		2015
Americas	$	22,579	$	27,618	$	39,008
EMEA		170		424		239
Asia Pacific		225		193		260
Total revenues	$	22,974	$	28,235	$	39,507