Unaudited: Quarterly Results of Operations, Common Stock Price and Dividends (Tables)

12 Months Ended

Dec. 31, 2021

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

	Quarter ended
	March 31		June 30		September 30		December 31
	(In thousands except per share data)
2021
Net sales	$	117,842	$	122,869	$	128,738	$	135,748
Gross margin		49,362		50,102		51,184		54,835
Net earnings		13,781		13,972		15,855		17,276
Earnings per share:
Basic	$	0.47	$	0.48	$	0.54	$	0.59
Diluted		0.47		0.48		0.54		0.59
Dividends declared		0.18		0.18		0.20		0.20
Stock price:
High	$	111.77	$	100.01	$	108.25	$	112.36
Low		88.98		89.29		93.88		99.13
Quarter-end close		93.07		98.12		101.14		105.64
2020
Net sales	$	108,508	$	91,119	$	113,587	$	112,329
Gross margin		43,322		35,850		45,023		44,055
Net earnings		11,854		9,534		14,861		13,094
Earnings per share:
Basic	$	0.41	$	0.33	$	0.51	$	0.45
Diluted		0.41		0.33		0.51		0.45
Dividends declared		0.17		0.17		0.18		0.18
Stock price:
High	$	70.83	$	68.01	$	68.25	$	96.00
Low		41.50		47.00		59.53		64.96
Quarter-end close		53.60		62.92		65.37		94.06