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INFORMATION CONCERNING PRODUCT LINES, GEOGRAPHIC INFORMATION, ACCOUNTS RECEIVABLE AND REVENUE CONCENTRATION (Tables)
 12 Months Ended
Dec. 31, 2017
Segment Reporting [Abstract]  
Schedule of revenue by product family
The following is a breakdown of revenue by product family (in thousands):
 
 
Fiscal Years
 
2017
 
2016
 
2015
Revenue by product line (1) :
 
 
 
 
 
New products
$
5,853

 
$
5,622


$
12,020

Mature products
6,296

 
5,799


6,936

Total revenue
$
12,149

 
$
11,421


$
18,956

___________________________
(1)
 For all periods presented: New products include all products manufactured on 180 nanometer or smaller semiconductor processes. Mature products include all products produced on semiconductor processes larger than 180 nanometers. eFPGA IP license revenue is also included in new product revenue.
Schedule of revenue by shipment destination
The following is a breakdown of revenue by shipment destination (in thousands):
 
 
Fiscal Years
 
2017
 
2016
 
2015
Revenue by geography:
 
 
 
 
 
Asia Pacific (1)
$
5,810

 
$
7,131

 
$
12,650

Europe
2,015

 
1,386

 
1,859

North America (2)
4,324

 
2,904

 
4,447

Total revenue
$
12,149

 
$
11,421

 
$
18,956


__________________________
(1) Asia Pacific includes revenue from South Korea of $2.1 million or 17% of total revenue in 2017 and 3.6 million or 31% of total revenue in 2016.
(2) 
North America includes revenue from the United States of $4.2 million or 34% of total revenue in 2017 and 2.8 million or 25% of total revenue in 2016.
Schedule of distributors and customers accounting for revenue
The following distributors and customers accounted for 10% or more of the Company's revenue for the periods presented:
 
 
Fiscal Years
 
2017
 
2016
 
2015
Distributor "A"
33
%
 
26
%
 
23
%
Customer "B"
11
%
 
14
%
 
13
%
Customer "G"
19
%
 
33
%
 
43
%
Schedule of distributors and customers accounting for accounts receivable
The following distributors and customers accounted for 10% or more of the Company's accounts receivable as of the dates presented:
 
 
December 31,
2017
 
January 1,
2017
Distributor "A"
45
%
 
32
%
Distributor "G"
—

 
11
%
Distributor "H"
*

 
13
%
Distributor "I"
*

 
15
%
Customer "G"
12
%
 
*

Customer "I"
*

 
12
%
___________________________
* Represents less than 10% of accounts receivable as of the date presented.