Note 8 - Derivatives Instruments and Hedging Activities (Details) - Fair Value of Derivative Instruments Designated as Hedging Instruments (Interest Rate Swap [Member], USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Interest Rate Swaps	$ 1,892	$ 2,041