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

12 Months Ended

Dec. 31, 2019

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)
2019
Net sales	$	104,881	$	103,542	$	108,646	$	107,556
Gross margin	$	40,457	$	40,276	$	41,670	$	41,125
Net earnings	$	10,824	$	11,358	$	12,721	$	12,274
Earnings per share:
Basic	$	0.37	$	0.39	$	0.44	$	0.42
Diluted	$	0.37	$	0.39	$	0.44	$	0.42
Dividends declared	$	0.15	$	0.15	$	0.17	$	0.17
Stock price:
High	$	61.57	$	60.28	$	60.52	$	66.64
Low	$	47.59	$	51.56	$	49.66	$	50.67
Quarter-end close	$	55.64	$	59.69	$	53.70	$	64.93
2018
Net sales	$	105,041	$	113,648	$	110,630	$	104,413
Gross margin	$	36,748	$	41,504	$	43,946	$	40,151
Net earnings	$	7,546	$	6,154	$	2,851	$	11,239
Earnings per share:
Basic	$	0.26	$	0.21	$	0.10	$	0.39
Diluted	$	0.26	$	0.21	$	0.10	$	0.39
Dividends declared	$	0.13	$	0.13	$	0.15	$	0.15
Stock price:
High	$	51.05	$	47.25	$	56.40	$	57.12
Low	$	45.45	$	41.00	$	50.75	$	46.70
Quarter-end close	$	47.15	$	44.70	$	52.95	$	49.21