CONCENTRATION OF RISK (Tables)

3 Months Ended

Mar. 31, 2017

Risks And Uncertainties [Abstract]

Revenues and Accounts Receivable From Our Largest Customers

Revenues and accounts receivable from the Company's largest customers were as follows (in thousands):

	% of Revenues for the three months ended March 31,				Accounts Receivable as of
Customer	2017		2016		March 31, 2017
A		51%		36%	$	17,487
B		35%		50%	$	12,213
C		3%		6%	$	1,442

Revenues by Geographic Area

Revenues by geographic area are as follows (in thousands):

	Three Months Ended March 31,
Country	2017		2016
South Korea	$	47,928	$	25,963
China		2,482		1,757
Japan		1,084		1,287
Other non-U.S. locations		712		613
Total non-U.S. locations	$	52,206	$	29,620
United States		3,360		83
Total revenue	$	55,566	$	29,703

Long-Lived Assets (Net) by Geographic Area

Long-lived assets (net), by geographic area are as follows (in thousands):

	March 31, 2017		December 31, 2016
United States	$	28,283	$	26,917
Other		269		286
Total long-lived assets	$	28,552	$	27,203