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FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Nonrecurring [Member] |  |
Assets |  |
Licensed technology (net) | $ 3,977 | $ 8,384
Goodwill | 32,466 | 32,466
Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Assets |  |
Licensed technology (net) | 0 | 0
Goodwill | 0 |
Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Assets |  |
Licensed technology (net) | 0 | 0
Goodwill | 0 |
Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Assets |  |
Licensed technology (net) | 3,977 | 8,384
Goodwill | 32,466 | 32,466
Nonrecurring [Member] | Licensed technology [Member] |  |
Assets |  |
Licensed technology (net) | 127 | 0
Nonrecurring [Member] | Goodwill [Member] |  |
Assets |  |
Goodwill | $ 0 | 0
Recurring Member |  |
Liabilites |  |
Contingent consideration |  | 0
Recurring Member | Contingent Consideration [Member] |  |
Liabilites |  |
Contingent consideration |  | 1,391
Recurring Member | Fair Value, Inputs, Level 1 [Member] |  |
Liabilites |  |
Contingent consideration |  | 0
Recurring Member | Fair Value, Inputs, Level 2 [Member] |  |
Liabilites |  |
Contingent consideration |  | 0
Recurring Member | Fair Value, Inputs, Level 3 [Member] |  |
Liabilites |  |
Contingent consideration |  | $ 0

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