Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2018	Dec. 31, 2017
Preferred stock, shares authorized	250,000	250,000
Preferred stock, par value	$ 1.00	$ 1.00
Common stock, par value	$ 2.50	$ 2.50
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	12,399,887	12,465,296
Common stock, shares outstanding	12,312,933	12,358,562
Employee Stock Ownership Plan (ESOP), Number of Suspense Shares	86,954	106,734