Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
STOCKHOLDERS' EQUITY
Accounts receivable, allowance for credit losses	$ 527	$ 494
Common stock, par value	$ 2.50	$ 2.50
Common stock, shares authorized	8,000,000	8,000,000
Common stock, shares issued	5,355,231	5,351,596
Common stock, shares outstanding	3,810,359	3,806,724
Treasury stock, shares	1,544,872	1,544,872