Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Net sales	$ 29,376	$ 25,388
Cost of goods sold	20,512	18,624
Depreciation expense	815	767
Total cost of goods sold	21,327	19,391
Gross profit	8,049	5,997
Selling expense	3,222	2,575
General and administrative expense	2,891	3,145
Amortization expense		39
Total operating expenses	6,113	5,759
Income from operations	1,936	238
Other income (expense):
Interest expense	(22)	(39)
(Loss) gain on sale of property and equipment	(7)	5
Other income, net	(8)	(3)
Total other income (expense)	(37)	(37)
Income before provision for income taxes	1,899	201
Provision for income taxes	593	55
Net income	$ 1,306	$ 146
Earnings per common share - Basic	$ 0.08	$ 0.01
Earnings per common share - Diluted	$ 0.08	$ 0.01
Weighted average number of shares outstanding - Basic	15,604	15,623
Weighted average number of shares outstanding - Diluted	15,814	15,737