Note 14 - Derivatives (Details) (USD $)	3 Months Ended		9 Months Ended			3 Months Ended		31 Months Ended	9 Months Ended				1 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Federal Home Loan Bank Certificates and Obligations (FHLB) [Member]	Sep. 30, 2014 Reclassification out of Accumulated Other Comprehensive Income [Member] Gains (Losses) on Derivatives [Member]	Mar. 31, 2011 Reclassification out of Accumulated Other Comprehensive Income [Member] Gains (Losses) on Derivatives [Member]	Sep. 30, 2014 Reclassification out of Accumulated Other Comprehensive Income [Member] Gains (Losses) on Derivatives [Member]	Sep. 30, 2014 Other Noninterest Income [Member]	Aug. 31, 2010 Forward Starting Interest Rate Swaps [Member]	Aug. 31, 2011 Interest Rate Swap [Member]	Feb. 04, 2011 Interest Rate Swap [Member]	Jul. 31, 2013 Forward Starting Interest Rate Swap One [Member]
Note 14 - Derivatives (Details) [Line Items]
Derivative, Number of Instruments Held										5	4
Derivative Asset, Notional Amount												$ 3,000,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	1,273,000	1,802,000	4,044,000	5,848,000			3,000,000
Interest Rate Derivative Liabilities, at Fair Value					75,000,000
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net			(1,900,000)	(450,000)					952,000
Interest Expense	1,154,000	825,000	2,853,000	2,671,000		13,000		814,000
Noninterest Income	671,000	974,000	3,171,000	2,823,000				952,000
Borrowings From Federal Home Loan Bank Not Obtained													75,000,000
Derivative, Gain (Loss) on Derivative, Net													(503,000)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax													(296,000)
Obligation to Return Securities Received as Collateral	3,100,000		3,100,000
Number Of Mortgage Backed Securities Pledged			3
Pledge On One Mortgage Backed Securities	4,300,000		4,300,000
Fair Value, Estimate Not Practicable, Mortgage-backed Securities Held-to-maturity	$ 4,500,000		$ 4,500,000