Note 10 - Allowance for Loan Losses and Credit Quality Information (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Note 10 - Allowance for Loan Losses and Credit Quality Information (Details) [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	$ 22,357,000	$ 29,975,000
Impaired Financing Receivable, Related Allowance	6,552,000	4,813,000
Loan Receivable For Which Value Of Collateral Sufficient To Repay	8,000,000	10,300,000
Financing Receivable, Modifications, Recorded Investment	25,714,000	33,055,000
Restructured Loans Classified Performing	500,000
Reserves For Loan Losses On Troubled Debt Restructurings	5,800,000	3,700,000
Percentage Reserves For Loan Losses On Troubled Debt Restructurings	34.90%	17.20%
Loan Loss Reserves	16,500,000	21,600,000
Non-Accuring Loans[Member]
Note 10 - Allowance for Loan Losses and Credit Quality Information (Details) [Line Items]
Impaired Financing Receivable, Related Allowance	$ 6,100,000	$ 3,200,000