Note 5 - Loans (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Note 5 - Loans (Details) [Line Items]
Mortgage Loans Serviced For Benefit Of Others	$ 385,900,000	$ 384,500,000
Aggregate Of Net Unearned Income Net Deferred Fees And Costs And Discounts And Premiums	593,000	643,000
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	169,000
Impaired Financing Receivable, Interest Income, Accrual Method	462,000
Impaired Financing Receivable, Average Recorded Investment	44,100,000
Federal Home Loan Bank Advances [Member]
Note 5 - Loans (Details) [Line Items]
Loans Pledged as Collateral	189,400,000	205,200,000
Lendable Collateral	85,800,000	90,200,000
Federal Reserve Services [Member]
Note 5 - Loans (Details) [Line Items]
Loans Pledged as Collateral	749,000	794,000
Lendable Collateral	$ 643,000	$ 651,000