Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net sales	$ 444,355	$ 457,665	$ 333,313
Cost of sales	366,713	371,810	289,059
Gross profit	77,642	85,855	44,254
Selling, general, and administrative expense	43,784	41,034	28,222
Operating income	33,858	44,821	16,032
Other income	276	97	328
Interest expense	(4,855)	(3,568)	(1,202)
Income before income taxes	29,279	41,350	15,158
Income tax expense	8,207	10,201	3,635
Net income	$ 21,072	$ 31,149	$ 11,523
Net income per common share
Basic (in dollars per share)	$ 2.11	$ 3.14	$ 1.17
Diluted (in dollars per share)	$ 2.09	$ 3.11	$ 1.16
Shares used in per share calculations:
Basic (in shares)	9,991	9,914	9,854
Diluted (in shares)	10,081	10,012	9,928