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CONTINGENT LIABILITIES (Brazilian Internal Revenue Service) (Details) |  |  | 12 Months Ended
--- | --- | --- | ---
Jun. 24, 2010 USD ($) | Jun. 24, 2010 BRL | Oct. 01, 2005 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2015 BRL
Contingent Liabilities, Liens and Guarantees [Line Items] |  |  |  |  |
Offsetting amount |  |  | $ 2,100,000 |  |
Tax Assessment [Member] | Brazilian Internal Revenue Service [Member] |  |  |  |  |
Contingent Liabilities, Liens and Guarantees [Line Items] |  |  |  |  |
Amount of possible loss | $ 3,120,000 | BRL 5,567,032 |  |  |
Estimated amount of aggregate sum claimed pursuant to the tax assessment (principal amount, interest and penalties) |  |  |  | $ 2,890,000 | BRL 11,300,000

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