Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Net sales	$ 7,197	$ 7,178	$ 21,134	$ 20,365
Cost of sales	3,973	4,235	11,578	12,877
Gross Profit	3,224	2,943	9,556	7,488
Operating expenses:
Advertising	169	105	531	491
Selling	2,168	1,369	5,371	4,381
General and administrative	1,377	1,223	4,284	3,604
Total operating expenses	3,714	2,697	10,186	8,476
(Loss) income from operations	(490)	246	(630)	(988)
Interest income		28	3	89
Interest expense	(137)	(5)	(215)	(14)
Gain on sale of equipment				110
Other income			350
(Loss) income before income taxes	(627)	269	(492)	(803)
Income tax benefit	110	118	174	144
Net (loss) income	$ (517)	$ 387	$ (318)	$ (659)
Net (loss) income per common share
Basic	$ (0.04)	$ 0.03	$ (0.03)	$ (0.05)
Diluted	$ (0.04)	$ 0.03	$ (0.03)	$ (0.05)
Weighted average shares outstanding
Basic	12,480	12,462	12,468	12,435
Diluted	12,480	12,462	12,468	12,435