Note 3 - Loans and Allowance for Loan Losses (Details) (USD $)	3 Months Ended		9 Months Ended			9 Months Ended	3 Months Ended		9 Months Ended				12 Months Ended	9 Months Ended							9 Months Ended	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2014 Bank Overdrafts [Member]	Sep. 30, 2014 Consumer Portfolio Segment [Member]	Sep. 30, 2013 Consumer Portfolio Segment [Member]	Sep. 30, 2014 Consumer Portfolio Segment [Member]	Sep. 30, 2013 Consumer Portfolio Segment [Member]	Sep. 30, 2014 Other Loans [Member]	Sep. 30, 2014 Classified Loans [Member]	Dec. 31, 2013 Classified Loans [Member]	Sep. 30, 2014 Minimum [Member]	Sep. 30, 2014 Qualitative Factor Economic Condition [Member]	Dec. 31, 2013 Qualitative Factor Economic Condition [Member]	Sep. 30, 2014 Qualitative Factor Past Due Loans [Member]	Dec. 31, 2012 Qualitative Factor Past Due Loans [Member]	Sep. 30, 2014 Qualitative Factor Other Internal And External Factors [Member]	Dec. 31, 2013 Qualitative Factor Other Internal And External Factors [Member]	Sep. 30, 2014 Overall Qualitative Factor [Member]	Dec. 31, 2013 Overall Qualitative Factor [Member]
Note 3 - Loans and Allowance for Loan Losses (Details) [Line Items]
Loans Charge Off Period						45 days			90 days
Performance Period														6 months
Number Of Loan											12
Financing Receivable, Allowance for Credit Losses, Write-downs (in Dollars)	$ (140,000)	$ (114,000)	$ (366,000)	$ (708,000)			$ (84,000)	$ (89,000)	$ (172,000)	$ (260,000)	$ 480,000
Collateral Dependent Loans Value Of Significant Properties (in Dollars)														200,000
Financing Receivable Allowance For Credit Losses Risk Factor	1.18		1.18		1.18										1.20	1.20	1.20	1.20	1.30	1.30
Allowance for Loan and Lease Losses, Period Increase (Decrease) (in Dollars)												$ 487,000	$ 521,000								$ 455,000	$ 471,000