Note 2 - Merger - Pro Forma Information As If the FWVB Acquisition Had Occurred On January 1, 2017 (Details) - First West Virginia Bancorp [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Net Interest Income	$ 41,357	$ 37,944
Noninterest Income	8,649	8,779
Noninterest Expense	39,737	33,733
Net Income	$ 8,010	$ 8,444
Basic (in dollars per share)	$ 1.61	$ 1.69
Diluted (in dollars per share)	$ 1.59	$ 1.68