CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2025	Dec. 31, 2024
CONSOLIDATED BALANCE SHEETS
Capital stock, par value (in dollars per share)	$ 2	$ 2
Capital stock, shares authorized (in shares)	30,000,000	20,000,000
Capital stock, shares issued (in shares)	17,734,817	16,428,388
Capital stock, shares outstanding (in shares)	16,702,063	15,279,783
Treasury stock (in shares)	1,032,754	1,148,605