CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2023	Dec. 31, 2022
CONSOLIDATED BALANCE SHEETS
Preferred stock, par value (in dollars per share)	$ 2.00	$ 2.00
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 2.00	$ 2.00
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	6,271,550	6,250,763
Common stock, shares outstanding	6,039,939	6,019,152
Treasury stock, shares	231,611	231,611