CONCENTRATION OF RISK, Revenues by Geographic Area (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Concentration Risk [Line Items]
Revenues	$ 37,839	$ 14,976
UNITED STATES
Concentration Risk [Line Items]
Revenues	167	755
South Korea [Member]
Concentration Risk [Line Items]
Revenues	22,956	9,344
Japan [Member]
Concentration Risk [Line Items]
Revenues	14,058	4,612
Taiwan [Member]
Concentration Risk [Line Items]
Revenues	321	166
Other [Member]
Concentration Risk [Line Items]
Revenues	337	99
All Countries [Domain]
Concentration Risk [Line Items]
Revenues	$ 37,672	$ 14,221