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Derivatives and Other Financial Instruments - Impact of the Company's derivatives on the consolidated financial statements of operations (Details 1) (Foreign Currency Exchange Contracts, Not designated as hedging instrument, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Derivatives, Fair Value [Line Items]
Amount of Gain (Loss) Recognized in Operations	$ 74	$ (69)
Other Expense: Gain (loss) on foreign currency exchange rate
Derivatives, Fair Value [Line Items]
Amount of Gain (Loss) Recognized in Operations	$ 74	$ (69)

The amount of net gains and losses recognized in income during the period on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges, on derivative instruments designated and qualifying as hedging instruments in cash flow hedges, and on derivative instruments not designated as hedging instruments.

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