Note 18 - Fair Value Measurements (Details) (USD $)			9 Months Ended						9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 Commercial and Residential Real Estate Collateral [Member] Minimum [Member]	Sep. 30, 2013 Commercial and Residential Real Estate Collateral [Member] Maximum [Member]	Sep. 30, 2013 Collateral Dependent Loans [Member]	Dec. 31, 2012 Collateral Dependent Loans [Member]	Sep. 30, 2013 Foreclosed Assets Not Covered By FDIC Loss Share [Member]	Dec. 31, 2012 Foreclosed Assets Not Covered By FDIC Loss Share [Member]	Sep. 30, 2013 Special Mention Or Worse [Member]
Note 18 - Fair Value Measurements (Details) [Line Items]
Collateral Dependent Loans Amount At Which Testing Begins									$ 500,000
Collateral Dependent Loans Amount At Which All Loans Are Tested									1,500,000
Assets Held-for-sale, at Carrying Value							26,200,000	33,400,000
Fair Value Percentage Of Collateral Discount			10.00%	40.00%
Impaired Financing Receivable, Related Allowance	$ 1,800,000	$ 2,800,000			$ 376,000	$ 219,000