Note 6 - Loans Acquired - Impact of the Adjustments on the Company's Financial Results for the Following Reporting Periods (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Impact on net interest income and pre-tax income	$ 23	$ 65	$ 2,596	$ 1,240
Net impact, net of taxes	$ 14	$ 40	$ 1,578	$ 754