CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Preferred stock, par value per share	$ 2.50	$ 2.50
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, shares outstanding
Common stock, par value per share	$ 2.50	$ 2.50
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	2,560,138	2,543,452
Common stock, shares outstanding	2,560,138	2,543,452