Note 10 - Hedging Activities (Details) (USD $)				1 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Feb. 29, 2012	Feb. 29, 2012 Junior Subordinated Debt [Member] London Interbank Offered Rate (LIBOR) [Member]
Note 10 - Hedging Activities (Details) [Line Items]
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust	$ 54,301,000	$ 32,990,000	$ 32,000,000
Debt Instrument, Basis Spread on Variable Rate				2.18%
Derivative, Notional Amount				32,000,000
Fair Value of Interest Rate Swap Agreement Liability	$ 100,000	$ 300,000