Concentrations

9 Months Ended

12 Months Ended

Sep. 30, 2017

Dec. 31, 2016

Concentrations [Abstract]

Concentrations

Note 9:  Concentrations    

The following is a schedule of revenues by geographic location (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2017		2016		2017		2016
	(unaudited)				(unaudited)
North and South America	$	2,192	$	2,849	$	9,479	$	10,022
Europe, Middle East, and Africa		1,634		1,301		4,378		5,637
Asia Pacific		454		155		1,752		1,180
Total	$	4,280	$	4,305	$	15,609	$	16,839

The following table represents the domestic and international revenues as a percentage of total net revenues:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2017			2016			2017			2016
	(unaudited)						(unaudited)
Domestic		51	%		66	%		61	%		60	%
International		49	%		34	%		39	%		40	%

The Company purchases principally all of its silicon wafers from two suppliers located in Taiwan and Korea.   

For the nine months ended September 30, 2017, one customer accounted for 10% of net revenues and there were no other single customers accounting for over 10% of net revenues. For the three months ended September 30, 2017, one customer accounted for over 10% of net revenues.   As of September 30, 2017, two customersaccounted for 15 % and 10%, respectively of the Company’s consolidated accounts receivable balance and no other single customer accounted for over 10% of the consolidated accounts receivable.

Note 12 – Concentrations

The following is a schedule of revenue by geographic location (in thousands):

	Year Ended
	December 31,
	2016		2015
North and South America	$	12,664	$	16,182
Europe, Middle East, and Africa		7,293		6,950
Asia Pacific		1,440		2,010
Total	$	21,397	$	25,142

	Year Ended
	December 31,
	2016			2015
Domestic		58	%		63	%
International		42	%		37	%

The Company purchases principally all of its silicon wafers fromtwo supplierssupplier located in Taiwanand Korea, respectively.

In 2016, there was onecustomer that accounted for 11% of totalrevenues and 4% of accounts receivable as of December 31, 2016. In 2015, there were 2 customers that accounted for12% and 11% oftotal revenues and 5%and zero, respectively, of accounts receivable at December 31, 2015.

At December 31, 2016 and 2015, there were ten customers who comprised 65% and 62%, respectively, of accounts receivable. At December 31,2016, the Company had 2 customers that accounted for 17% and 12% of accounts receivable and,at December 31,2015,  one customer that accounted for 12% of accounts receivable.