Consolidated Balance Sheets (Parenthetical) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Consolidated Balance Sheets
Time deposits, over	$ 250,000
Shareholder's Equity
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	15	15
Preferred stock, shares outstanding	15	15
Preferred stock, liquidation value	$ 100,000	$ 100,000
Common stock par value (in dollars per share)	$ 2.50	$ 2.50
Common stock, shares authorized (in shares)	15,000,000	15,000,000
Common stock, shares issued (in shares)	5,575,074	5,527,380
Treasury stock (in shares)	210,101	210,101