Note 5 - Loans (Details) (USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Dec. 31, 2012
Note 5 - Loans (Details) [Line Items]
Aggregate Of Net Unearned Income Net Deferred Fees And Costs And Discounts And Premiums	$ 583,000	$ 583,000	$ 320,000
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	197,000	545,000
Loans and Leases Receivable, Impaired, Troubled Debt, Interest Income	435,000	1,300,000
Impaired Financing Receivable, Average Recorded Investment	45,700,000	45,100,000
Federal Home Loan Bank Advances [Member]
Note 5 - Loans (Details) [Line Items]
Loans Pledged as Collateral	203,400,000	203,400,000	201,200,000
Lendable Collateral	82,500,000	82,500,000	79,900,000
Federal Reserve Services [Member]
Note 5 - Loans (Details) [Line Items]
Loans Pledged as Collateral	2,200,000	2,200,000	2,500,000
Lendable Collateral	$ 2,000,000	$ 2,000,000	$ 2,200,000