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Note 12 - Fair Value Measurements (Details) - Assets and Liabilities Measured at Fair Value (Fair Value, Inputs, Level 2 [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Measured on a recurring basis:
Derivative contracts, net	$ (2,900)	$ (4,679)

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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