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Note 7 - Derivative Financial Instruments (Details) - The fair value effect on the financial statements from the interest rate swap designated as a cash f (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
The fair value effect on the financial statements from the interest rate swap designated as a cash f [Abstract]
Other long-term liabilities	$ 60

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.

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