Note 15 - Fair Values (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013 Obligations of States and Political Subdivisions [Member] Fair Value, Inputs, Level 2 [Member]	Sep. 30, 2013 Obligations of States and Political Subdivisions [Member]	Sep. 30, 2013 Non Agency Mortgage Backed Securities [Member] Fair Value, Inputs, Level 2 [Member]	Sep. 30, 2014 Collateral Impaired Loans [Member]
Note 15 - Fair Values (Details) [Line Items]
Fair Value Inputs, Discount Rate	10.00%
Future Cash Flows Discounted	6.23%
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3		$ 1,100,000	$ 1,131,000	$ 13,000,000
Collateral Dependent Impaired Loans Carrying Amount					17,500,000
Fair Value Written Down					12,600,000
Allowance for Loan and Lease Losses, Adjustments, Net					5,000,000
Carrying Value Of Loans Fully Charged Off	$ 0