Note 14 - Derivatives (Details) - Reclassification out of Accumulated Other Comprehensive Income - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest rate swaps	$ 952			$ 594	$ (1,880)
Designated as Hedging Instrument [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Interest Rate Swap [Member] | Cash Flow Hedging [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest rate swaps		$ (177)	$ 1,017	$ (350)	$ 1,105