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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES: (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Derivative contracts |  |
Assets | $ 61 | $ 189
Liabilities | (875) | (301)
Derivatives designated as hedging instruments: |  |
Derivative contracts |  |
Assets | 41 | 127
Liabilities | (875) | (301)
Derivatives designated as hedging instruments: | Foreign currency forward contracts |  |
Derivative contracts |  |
Notional Amounts | 34,244 |
Liabilities | (684) |
Derivatives designated as hedging instruments: | Commodity futures contracts |  |
Derivative contracts |  |
Notional Amounts | 5,601 | 7,868
Assets | 41 | 127
Liabilities | (191) | (301)
Derivatives not designated as hedging instruments: |  |
Derivative contracts |  |
Assets | 20 | 62
Derivatives not designated as hedging instruments: | Commodity futures contracts |  |
Derivative contracts |  |
Notional Amounts | 321 | 627
Assets | $ 20 | $ 62

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