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Note 8 - Derivatives Instruments and Hedging Activities (Details) - Derivative Instruments Included in the Company’s Accumulated Other Comprehensive Income (USD $) In Thousands, unless otherwise specified					9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2014 Interest Rate Swap [Member]	Sep. 30, 2013 Interest Rate Swap [Member]
Note 8 - Derivatives Instruments and Hedging Activities (Details) - Derivative Instruments Included in the Company’s Accumulated Other Comprehensive Income [Line Items]
Balance at beginning of the period	$ 1,892	$ 2,041	$ 1,593	$ (1,744)
Unrealized (loss) gain on interest rate swaps					(149)	3,337
Balance at end of the period	$ 1,892	$ 2,041	$ 1,593	$ (1,744)

Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

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