CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Net sales	$ 148,482	$ 155,625	$ 419,993	$ 456,658
Cost of sales	104,040	109,805	299,912	319,777
Gross profit	44,442	45,820	120,081	136,881
Research and development expenses	8,017	7,411	24,460	23,029
Selling, general and administrative expenses	24,928	29,505	79,188	87,316
Operating income	11,497	8,904	16,433	26,536
Interest income (expense), net	(668)	(212)	(1,147)	(447)
Loss on sale of Argentina subsidiary	0	(6,050)	0	(6,050)
Other income (expense), net	(54)	(157)	(388)	(151)
Income before provision for income taxes	10,775	2,485	14,898	19,888
Provision for income taxes	3,541	3,440	7,586	8,257
Net income (loss)	$ 7,234	$ (955)	$ 7,312	$ 11,631
Earnings (loss) per share:
Basic (in dollars per share)	$ 0.57	$ (0.07)	$ 0.58	$ 0.85
Diluted (in dollars per share)	$ 0.57	$ (0.07)	$ 0.57	$ 0.84
Shares used in computing earnings (loss) per share:
Basic (in shares)	12,656	13,392	12,709	13,622
Diluted (in shares)	12,696	13,392	12,797	13,920

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