CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total
Balance at Dec. 31, 2022	$ 3,422		$ 122,954	$ (1,995)	$ 124,381
Balance (in shares) at Dec. 31, 2022	34,218
Increase (Decrease) in Stockholders' Equity
Stock issued for stock incentive plans, net	$ 32	$ 3,679			3,711
Stock issued for stock incentive plans, net (in shares)	318
Stock purchased and retired	$ (7)	(3,679)	2,776		(910)
Stock purchased and retired (in shares)	(69)
Net income			41,695		41,695
Pension adjustment, net of taxes				$ 1,995	1,995
Cash dividends			(19,284)		(19,284)
Balance at Dec. 31, 2023	$ 3,447		148,141		151,588
Balance (in shares) at Dec. 31, 2023	34,467
Increase (Decrease) in Stockholders' Equity
Stock issued for stock incentive plans, net	$ 33	4,195			4,228
Stock issued for stock incentive plans, net (in shares)	328
Stock purchased and retired	$ (9)	(4,195)	3,271		(933)
Stock purchased and retired (in shares)	(88)
Net income			17,853		17,853
Cash dividends			(43,733)		(43,733)
Balance at Dec. 31, 2024	$ 3,471		125,532		129,003
Balance (in shares) at Dec. 31, 2024	34,707
Increase (Decrease) in Stockholders' Equity
Stock issued for stock incentive plans, net	$ 41	5,188			5,229
Stock issued for stock incentive plans, net (in shares)	406
Stock purchased and retired	$ (12)	$ (5,188)	4,145		(1,055)
Stock purchased and retired (in shares)	(115)
Net income			11,383		11,383
Cash dividends			(19,595)		(19,595)
Balance at Dec. 31, 2025	$ 3,500		$ 121,465		$ 124,965
Balance (in shares) at Dec. 31, 2025	34,998