Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Net sales	$ 72,992	$ 86,728	$ 239,880	$ 283,961
Cost of sales	60,647	71,450	196,505	230,380
Gross margin	12,345	15,278	43,375	53,581
Selling, general and administrative expense	8,740	9,403	27,550	29,562
Operating income	3,605	5,875	15,825	24,019
Other income and expense
Net interest (income) expense	(144)	187	(99)	836
Net periodic post-retirement benefit	(138)	(52)	(414)	(157)
Total other (income) and expense	(282)	135	(513)	679
Income before taxes	3,887	5,740	16,338	23,340
Income tax expense	727	1,386	3,000	5,198
Net income	$ 3,160	$ 4,354	$ 13,338	$ 18,142
Net income per common share:
Basic (in USD per share)	$ 0.36	$ 0.50	$ 1.53	$ 2.13
Diluted (in USD per share)	$ 0.36	$ 0.49	$ 1.51	$ 2.08