Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Preferred stock, par value per share (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, authorized (in shares)	2,000,000	2,000,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, par value per share (in dollars per share)	$ 0.50	$ 0.50
Common stock, authorized (in shares)	20,000,000	20,000,000
Common stock, issued (in shares)	8,000,000	8,000,000
Common stock, outstanding (in shares)	7,428,710	7,425,760
Treasury stock, shares (in shares)	571,290	574,240