Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Net sales	$ 118,522	$ 73,812	$ 227,853	$ 146,123
Cost of sales	94,442	64,274	188,987	127,810
Gross profit	24,080	9,538	38,866	18,313
Selling, general, and administrative expense	10,127	6,337	19,495	12,167
Operating income	13,953	3,201	19,371	6,146
Other income	1	30	45	89
Interest expense	(869)	(348)	(1,429)	(575)
Income before income taxes	13,085	2,883	17,987	5,660
Income tax expense	3,412	752	4,755	1,354
Net income	$ 9,673	$ 2,131	$ 13,232	$ 4,306
us-gaap_EarningsPerShareAbstract
Basic (in dollars per share)	$ 0.98	$ 0.22	$ 1.34	$ 0.44
Diluted (in dollars per share)	$ 0.97	$ 0.21	$ 1.33	$ 0.43
Shares used in per share calculations:
Basic (in shares)	9,918	9,861	9,900	9,837
Diluted (in shares)	9,968	9,915	9,971	9,920

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-URI https://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2(a),(d))
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227