Note 22 - Derivatives - Notional Amount, Effective Dates and Maturity Dates of the IR Contracts (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($)
Forward Starting Interest Rate Swap One [Member]
Fixed rate	2.64%
Variable rate	0.33%	[1]
Notional amount	$ 75
Effective date	Aug. 03, 2015
Maturity date	Aug. 01, 2016
Forward Starting Interest Rate Swap Two [Member]
Fixed rate	3.22%
Notional amount	$ 75
Effective date	Aug. 01, 2016
Maturity date	Aug. 01, 2017

[1] Rate floats to three month LIBOR payable quarterly on February 1, May 1, August 1, and November 1.