Note 11 - Derivative Financial Instruments (Details) - Effect of Derivative Instruments on Income (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Financial Derivatives, Net gain (loss)	$ (328)	[1]	$ 558	[1]	$ (2,122)	[1]	$ 2,880	[1]
Interest Rate Cap [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Financial Derivatives, Net gain (loss)			(7)				(18)
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Financial Derivatives, Net gain (loss)	(300)		565		(2,033)		2,882
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Financial Derivatives, Net gain (loss)	$ (28)				$ (89)		$ 16

[1] Net gains and (losses) are recorded as part of "Net loss from fair value adjustments" in the Consolidated Statements of Income.