Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Preferred stock, shares authorized (in shares)	4,000,000	4,000,000
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, shares issued (in shares)	0	0
Common stock, shares authorized (in shares)	40,000,000	40,000,000
Common stock, par value (in dollars per share)	$ 0.20	$ 0.20
Common stock, shares issued (in shares)	22,611,976	22,551,183
Common stock, shares outstanding (in shares)	22,611,976	22,551,183