Note 11 - Derivative Financial Instruments (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Note 11 - Derivative Financial Instruments (Details) [Line Items]
Junior Subordinated Notes, Portion Exposed To Rising Interest Rates	$ 18,000,000	$ 18,000,000
Junior Subordinated Notes, Contractual Value	61,900,000	61,900,000
Derivative Asset, Notional Amount	129,159,000	129,217,000
Not Designated as Hedging Instrument [Member]
Note 11 - Derivative Financial Instruments (Details) [Line Items]
Derivative Asset, Notional Amount	11,200,000
Designated as Hedging Instrument [Member]
Note 11 - Derivative Financial Instruments (Details) [Line Items]
Derivative Asset, Notional Amount		11,200,000
Not Designated as Hedging Instrument [Member]
Note 11 - Derivative Financial Instruments (Details) [Line Items]
Derivative Asset, Notional Amount	$ 118,000,000	$ 118,000,000