Note 22 - Derivative Financial Instruments - Derivative Position Designated As a Cash Flow Hedge (Details) - Designated as Hedging Instrument [Member] - Cash Flow Hedging [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Notional amount	$ 30,000
Pay fixed swap rate	1.82%
Fair value	$ 296	$ 25
Interest Rate Swap, Maturing December 6, 2021 [Member]
Notional amount	$ 10,000
Receive (variable index)	US 3 Month LIBOR
Pay fixed swap rate	1.89%
Fair value	$ 106	16
Interest Rate Swap, Maturing December 6, 2020 [Member]
Notional amount	$ 20,000		$ 20,000
Receive (variable index)	US 3 Month LIBOR
Pay fixed swap rate	1.79%
Fair value	$ 190	$ 9