CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS - UNAUDITED - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Net sales	$ 145,994	$ 147,695
Cost of goods sold	94,342	93,355
Gross margin	51,652	54,340
Selling, general and administrative expenses	21,979	21,788
Research and development expenses	6,586	6,194
Restructuring charges	912	312
Operating earnings	22,175	26,046
Other income (expense):
Interest expense	(694)	(546)
Interest income	1,063	180
Other income, net	165	66
Total other income (expense), net	534	(300)
Earnings before income taxes	22,709	25,746
Income tax expense	4,365	5,507
Net earnings	$ 18,344	$ 20,239
Earnings per share:
Basic	$ 0.58	$ 0.63
Diluted	$ 0.58	$ 0.63
Basic weighted – average common shares outstanding:	31,634	32,123
Effect of dilutive securities	259	204
Diluted weighted – average common shares outstanding:	31,893	32,327
Cash dividends declared per share	$ 0.04	$ 0.04