XML 17 R4.htm IDEA: XBRL DOCUMENT v3.24.0.1
Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2023
Dec. 31, 2022
Statement of Financial Position [Abstract]    
Capital stock, par value (in dollars per share) $ 1 $ 1
Serial preferred stock, shares authorized (in shares) 632,470 632,470
Serial preferred stock, shares issued (in shares) 0 0
Serial preferred stock, shares outstanding (in shares) 0 0
Common stock, shares authorized (in shares) 40,000,000 40,000,000
Common stock, shares issued (in shares) 17,029,938 16,653,928
Treasury stock, shares (in shares) 3,958,966 3,846,860