Note 7 - Loans And Related Allowance For Loan Losses (Details) (USD $)	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Note 7 - Loans And Related Allowance For Loan Losses (Details) [Line Items]
Number of Days Past Due	90
Loans and Leases Receivable, Allowance	$ 7,821,000	$ 7,779,000
Shift From Commercial and Industrial Specific Reserve	660,000
Threshold for Loans Evaluated for Impairment [Member] | Outside Consultant [Member]
Note 7 - Loans And Related Allowance For Loan Losses (Details) [Line Items]
Loans and Leases Receivable, Gross, Commercial	250,000
Threshold for Loans Evaluated for Impairment [Member] | Criticized Relationships [Member]
Note 7 - Loans And Related Allowance For Loan Losses (Details) [Line Items]
Financing Receivable, Gross	125,000
Threshold for Loans Evaluated for Impairment [Member]
Note 7 - Loans And Related Allowance For Loan Losses (Details) [Line Items]
Notes, Loans and Financing Receivable, Gross, Current	150,000
Loans and Leases Receivable, Gross, Commercial	200,000
Commercial and Industrial [Member]
Note 7 - Loans And Related Allowance For Loan Losses (Details) [Line Items]
Loans and Leases Receivable, Allowance	788,000	1,700,000
Residential Real Estate Mortgage [Member]
Note 7 - Loans And Related Allowance For Loan Losses (Details) [Line Items]
Loans and Leases Receivable, Allowance	$ 3,600,000	$ 2,900,000