Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017	[1]
Loans, allowance for loan losses	$ 3,947	$ 3,758
Other real estate owned, valuation allowance	$ 954	$ 797
Common stock, par value (in dollars per share)	$ 5	$ 5
Common stock, authorized shares (in shares)	10,000,000	10,000,000
Common stock, shares issued (in shares)	5,809,789	5,775,597
Common stock, shares outstanding (in shares)	5,809,789	5,775,597
Common stock, restricted shares (in shares)	42,495	32,087

[1] Derived from consolidated audited financial statements.