Note 13 - Fair Value Measurements and Disclosures (Details) - Assets and Liabilities Measured on a Recurring Basis (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Financial Liabilities
Derivative Financial Instruments Current Liabilities	$ 358	$ 2,984
Fair Value, Inputs, Level 1 [Member]
Financial Liabilities
Derivative Financial Instruments Current Liabilities	0	0
Derivative Financial Instruments Noncurrent Liabilities	0	0
Derivative Financial Instruments	0	0
Fair Value, Inputs, Level 2 [Member]
Financial Liabilities
Derivative Financial Instruments Current Liabilities	358	2,984
Derivative Financial Instruments Noncurrent Liabilities	0	0
Derivative Financial Instruments	358	2,984
Fair Value, Inputs, Level 3 [Member]
Financial Liabilities
Derivative Financial Instruments Current Liabilities	0	0
Derivative Financial Instruments Noncurrent Liabilities	0	0
Derivative Financial Instruments	$ 0	$ 0

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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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, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References+ Details

- Definition

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, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References+ Details