Note 18 - Derivative Financial Instruments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Note 18 - Derivative Financial Instruments (Details) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ 0.1	$ 0.6	$ (0.4)	$ 1.4
Commitment to Originate Mortgage Loans [Member]
Note 18 - Derivative Financial Instruments (Details) [Line Items]
Notional Amount Of Forward Rate Commitments And Futures Contracts To Hedge Against Mortgage Servicing Rights	79.6		79.6
No Commitment to Originate Mortgage Loans [Member]
Note 18 - Derivative Financial Instruments (Details) [Line Items]
Notional Amount Of Forward Rate Commitments And Futures Contracts To Hedge Against Mortgage Servicing Rights	9.5		9.5
Forward Sales of Mortgage-backed Securities [Member]
Note 18 - Derivative Financial Instruments (Details) [Line Items]
Notional Amount Of Forward Rate Commitments And Futures Contracts To Hedge Against Mortgage Servicing Rights	$ 56.0		$ 56.0