Note 8 - Deposits and Borrowed Funds (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Note 8 - Deposits and Borrowed Funds (Details) [Line Items]
Demand Deposit, Overdrafts	$ 6,573,000		$ 3,002,000
Interest Expense, Time Deposits, $100,000 or More	232,000	304,000
Short-term Debt	64,382,000		62,668,000
Pledged Financial Instruments, Not Separately Reported, Other Debt Securities Available-for-sale or Held-for-investment	213,960,000		113,902,000
Long-term Federal Home Loan Bank Advances	20,437,000		20,577,000
Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Two	20,000,000
Securities Sold under Agreements to Repurchase	10,000,000		10,000,000
Line of Credit Facility, Maximum Borrowing Capacity	35,000,000		35,000,000
Line of Credit Facility, Amount Outstanding	0		0
Debt Instrument, Interest Rate, Stated Percentage	2.00%
Residential Real Estate Loans [Member]
Note 8 - Deposits and Borrowed Funds (Details) [Line Items]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	22,766,000
Securities Sold Under Agreement To Repurchase [Member]
Note 8 - Deposits and Borrowed Funds (Details) [Line Items]
Pledged Financial Instruments, Not Separately Reported, Other Debt Securities Available-for-sale or Held-for-investment	10,740,000		11,278,000
Residential Real Estate Loans [Member]
Note 8 - Deposits and Borrowed Funds (Details) [Line Items]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged			$ 24,242,000