Information Concerning Product Lines, Geographic Information and Revenue Concentration (Tables)

9 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

Schedule of revenue by product line

The following is a breakdown of revenue by product line (in thousands):

	Three Months Ended				Nine Months Ended
	September 30, 2018		October 1, 2017		September 30, 2018		October 1, 2017
Revenue by product line (1):
New products	$	1,523	$	1,478	$	4,404	$	4,881
Mature products		1,987		1,494		4,992		4,287
Total revenue	$	3,510	$	2,972	$	9,396	$	9,168

(1) For all periods presented: New products include all products manufactured on 180 nanometer or smaller semiconductor processes. eFPGA IP license revenue is also included in new product revenue. Mature products include all products produced on semiconductor processes larger than 180 nanometers.

Schedule of revenue by shipment destination

The following is a breakdown of revenue by shipment destination (in thousands):

	Three Months Ended				Nine Months Ended
	September 30, 2018		October 1, 2017		September 30, 2018		October 1, 2017
Revenue by geography:
Asia Pacific (1)	$	1,737	$	1,455	$	4,030	$	4,865
North America (2)		1,370		1,158		4,409		3,380
Europe		403		359		957		923
Total revenue	$	3,510	$	2,972	$	9,396	$	9,168

⁽¹⁾ Asia Pacific includes revenue from China of $842,000, or 24% of total revenue, and $429,000, or 14% of total revenue, for the quarters ended September 30, 2018 and October 1, 2017, respectively. For the nine months ended September 30, 2018 and October 1, 2017, revenue from China was $1.4, million or 15% of total revenue, and $1.1 million, or 12% of total revenue, respectively. Revenue from Korea was $574,000, or 16% of total revenue and $636,000, or 21% of total revenue, for the quarters ended September 30, 2018 and October 1, 2017, respectively. For the nine months ended September 30, 2018 and October 1, 2017 revenue from Korea was $1.0 million, or 11% of total revenue and $1.8 million, or 19% of total revenue, respectively.

⁽²⁾ North America includes revenue from the United States of $1.4 million, or 39% of total revenue, and $1.1 million, or 37% of total revenue, for the quarters ended September 30, 2018 and October 1, 2017, respectively. For the nine months ended September 30, 2018 and October 1, 2017, revenue from the United States was $4.3 million, or 46% of total revenue, and $3.3 million, or 36% of total revenue, respectively.

Summary of distributors and customers accounting for 10% or more of revenue

The following distributors and customers accounted for 10% or more of the Company's revenue for the periods presented:

	Three Months Ended						Nine Months Ended
	September 30, 2018			October 1, 2017			September 30, 2018			October 1, 2017
Distributor "A"		29	%		36	%		33	%		33	%
Distributor "G"		11	%		10	%	*			*
Distributor "I"		13	%	*			*
Customer "G"		17	%		24	%		12	%		22	%
Customer "B"		12	%	*				12	%		11	%
Customer "I"		10	%	*			*			*
Customer "J"	*			*				12	%	*
Customer "K"		13	%	*			*			*

Schedule of distributors and customers accounting for 10% or more of accounts receivable

The following distributors and customers accounted for 10% or more of the Company's accounts receivable as of the dates presented:

	September 30, 2018			December 31, 2017
Distributor "A"		43	%		45	%
Distributor "I"		14	%	*
Customer "G"	*				12	%

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