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FAIR VALUE (CONTINGENT CONSIDERATION TABLE) (DETAILS) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Business acquisitions, Contingent Consideration [Line Items] |  |
Beginning balance, contingent consideration payable | $ 1,808 | $ 13,450
Acquisitions |  | 1,808
Payments | (1,433) | (9,439)
Imputed Interest/ Adjustment | 24 | (4,011)
Ending balance, contingent consideration payable | 399 | 1,808
Iknowtion |  |
Business acquisitions, Contingent Consideration [Line Items] |  |
Beginning balance, contingent consideration payable | 0 | 500
Payments |  | (500)
Ending balance, contingent consideration payable |  | 0
Sofica [Member] |  |
Business acquisitions, Contingent Consideration [Line Items] |  |
Beginning balance, contingent consideration payable | 0 | 3,153
Payments |  | (3,146)
Imputed Interest/ Adjustment |  | (7)
Ending balance, contingent consideration payable |  | 0
rogenSi |  |
Business acquisitions, Contingent Consideration [Line Items] |  |
Beginning balance, contingent consideration payable | 0 | 9,797
Payments |  | (5,793)
Imputed Interest/ Adjustment |  | (4,004)
Ending balance, contingent consideration payable |  | 0
Welltok |  |
Business acquisitions, Contingent Consideration [Line Items] |  |
Beginning balance, contingent consideration payable | 1,250 | 0
Acquisitions |  | 1,250
Payments | (851) |
Ending balance, contingent consideration payable | 399 | 1,250
Atelka [Member] |  |
Business acquisitions, Contingent Consideration [Line Items] |  |
Beginning balance, contingent consideration payable | 558 | 0
Acquisitions |  | 558
Payments | (582) |
Imputed Interest/ Adjustment | 24 |
Ending balance, contingent consideration payable | $ 0 | $ 558

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