Note 4 - Loans (Details) (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
Note 4 - Loans (Details) [Line Items]
Aggregate Of Net Unearned Income Net Deferred Fees And Costs And Discounts And Premiums	$ 449,000	$ 449,000	$ 320,000
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	193,000	348,000
Loans and Leases Receivable, Impaired, Troubled Debt, Interest Income	454,000	847,000
Impaired Financing Receivable, Average Recorded Investment	46,000,000	44,900,000
Federal Home Loan Bank Advances [Member]
Note 4 - Loans (Details) [Line Items]
Loans Pledged as Collateral	201,000,000	201,000,000	201,200,000
Lendable Collateral	81,500,000	81,500,000	79,900,000
Federal Reserve Services [Member]
Note 4 - 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