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CONCENTRATION OF RISK - Revenues by Geographic Area (Details) (USD $)
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3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
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Sep. 30, 2013
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Sep. 30, 2012
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Sep. 30, 2013
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Sep. 30, 2012
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| Revenues by geographic area [Line Items] | ||||
| United States | $ 269,000 | $ 874,000 | $ 1,353,000 | $ 3,432,000 |
| Revenue | 32,826,000 | 12,504,000 | 97,161,000 | 55,111,000 |
| All foreign locations | 32,557,000 | 11,630,000 | 95,808,000 | 51,679,000 |
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South Korea [Member]
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| Revenues by geographic area [Line Items] | ||||
| Revenue | 18,707,000 | 7,735,000 | 66,509,000 | 38,689,000 |
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Japan [Member]
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| Revenues by geographic area [Line Items] | ||||
| Revenue | 13,160,000 | 3,352,000 | 28,257,000 | 10,055,000 |
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Taiwan [Member]
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| Revenues by geographic area [Line Items] | ||||
| Revenue | 441,000 | 398,000 | 659,000 | 2,387,000 |
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Other foreign locations [Member]
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| Revenues by geographic area [Line Items] | ||||
| Revenue | $ 249,000 | $ 145,000 | $ 383,000 | $ 548,000 |
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Geographic Concentration Risk [Member] | Total Revenue [Member]
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| Revenues by geographic area [Line Items] | ||||
| Concentration Risk, Percentage | 99.00% | 93.00% | 99.00% | 94.00% |