Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Condensed Consolidated Statements Of Operations
Net sales	$ 43,316	$ 36,995	$ 123,133	$ 108,585
Cost of goods sold	28,360	23,861	78,594	68,877
Gross profit	14,956	13,134	44,539	39,708
Selling, general and administrative expenses	12,832	11,408	36,023	32,679
Operating income	2,124	1,726	8,516	7,029
Non-operating items:
Interest expense	173	478	742	1,491
Interest income	(5)	(9)	(20)	(28)
Interest expense, net	168	469	722	1,463
Other (income) expense, net	(35)	40	2	52
Total other expense, net	133	509	724	1,515
Income before income tax expense	1,991	1,217	7,792	5,514
Income tax expense	412	158	1,737	977
Net income	$ 1,579	$ 1,059	$ 6,055	$ 4,537
Basic earnings per share	$ 0.47	$ 0.32	$ 1.81	$ 1.35
Diluted earnings per share	$ 0.46	$ 0.30	$ 1.75	$ 1.32
Weighted average number of common shares outstanding-denominator used for basic per share computations	3,340,000	3,352,000	3,343,000	3,352,000
Weighted average number of dilutive stock options outstanding	122,000	134,000	111,000	94,000
Denominator used for diluted per share computations	3,461,000	3,486,000	3,455,000	3,446,000
Dividends declared per share	$ 0.12	$ 0.12	$ 0.36	$ 0.36