Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Condensed Consolidated Statements Of Operations
Net sales	$ 43,525	$ 35,775
Cost of goods sold	27,938	22,244
Gross profit	15,587	13,531
Selling, general and administrative expenses	12,619	11,521
Operating income	2,968	2,010
Non-operating items:
Interest expense	226	322
Interest income	(5)	(7)
Interest expense, net	221	315
Other expense, net	77	43
Total other expense, net	298	358
Income before income tax expense	2,670	1,652
Income tax expense	624	375
Net income	$ 2,046	$ 1,277
Basic earnings per share	$ 0.61	$ 0.38
Diluted earnings per share	$ 0.52	$ 0.36
Weighted average number of common shares outstanding-denominator used for basic per share computations	3,347,000	3,349,000
Weighted average number of dilutive stock options outstanding	564,000	170,000
Denominator used for diluted per share computations	3,911,000	3,519,000
Dividends declared per share	$ 0.13	$ 0.12