Note 23 - Fair Values (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)
Future Cash Flows Discounted	2.37%
Carrying Value of Loans Fully Charged off	$ 0
Minimum [Member]
Other Real Estate Owned Fair Value Adjustments Estimated Selling Costs Percentage	8.00%
Maximum [Member]
Other Real Estate Owned Fair Value Adjustments Estimated Selling Costs Percentage	15.00%
Collateral Impaired Loans [Member]
Collateral Dependent Impaired Loans Carrying Amount	$ 2,800
Fair Value Written Down	1,600
Allowance for Loan and Lease Losses, Adjustments, Other	1,200
Other Real Estate Owned [Member]
Fair Value Written Down	219
Allowance for Loan and Lease Losses, Adjustments, Other	$ 77
Number of Real Estate Properties	5
OREO Carry Amount	$ 296