Note 14 - Fair Values (Details Textual) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Future Cash Flows Discounted	3.38%
Carrying Value of Loans Fully Charged off		$ 0
Minimum [Member]
Other Real Estate Owned Fair Value Adjustments Estimated Selling Costs Percentage	20.00%
Maximum [Member]
Other Real Estate Owned Fair Value Adjustments Estimated Selling Costs Percentage	34.00%
Other Real Estate Owned [Member]
Number of Real Estate Properties	4
OREO Carry Amount	$ 243
Fair Value Written Down	121
Allowance for Loan and Lease Losses, Adjustments, Other	$ 122