Note 15 - Fair Values (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Note 15 - Fair Values (Details) [Line Items]
Future Cash Flows Discounted	6.13%
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3	$ 0	$ 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3	0	0
Carrying Value of Loans Fully Charged Off	0
Collateral Impaired Loans [Member]
Note 15 - Fair Values (Details) [Line Items]
Collateral Dependent Impaired Loans Carrying Amount	2,400,000
Fair Value Written Down	1,600,000
Allowance for Loan and Lease Losses, Adjustments, Other	744,000
Other Real Estate Owned [Member]
Note 15 - Fair Values (Details) [Line Items]
Collateral Dependent Impaired Loans Carrying Amount	683,000
Fair Value Written Down	575,000
Allowance for Loan and Lease Losses, Adjustments, Other	108,000
Fair Value, Inputs, Level 3 [Member]
Note 15 - Fair Values (Details) [Line Items]
Assets, Fair Value Disclosure, Recurring	0	0
Liabilities, Fair Value Disclosure, Recurring	$ 0	$ 0