CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
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	6,178,835	6,115,281
Common stock, shares outstanding	5,947,223	5,883,669
Treasury stock, shares	231,612	231,612