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Note 9 - Derivative Financial Instruments (Detail) - Derivatives Designated As Cash Flow Hedges (Interest Rate Swap [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Interest Rate Swap [Member]
Interest rate swap	$ 96	$ 43

- Definition

The effective portion of losses on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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