Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Net sales	$ 9,686	$ 10,341	$ 27,921	$ 30,657
Cost of sales	4,808	5,420	14,644	16,649
Gross Profit	4,878	4,921	13,277	14,008
Operating expenses:
Advertising	324	110	1,206	531
Selling	2,063	1,583	5,536	4,879
General and administrative	1,079	1,063	3,604	3,166
Total operating expenses	3,466	2,756	10,346	8,576
Income from operations	1,412	2,165	2,931	5,432
Interest expense	(5)	(26)	(77)	(102)
Income before income taxes	1,407	2,139	2,854	5,330
Income tax expense	(340)	(664)	(699)	(1,899)
Net income	$ 1,067	$ 1,475	$ 2,155	$ 3,431
Net income per common share
Basic	$ 0.09	$ 0.12	$ 0.18	$ 0.29
Diluted	$ 0.09	$ 0.12	$ 0.17	$ 0.28
Weighted average shares outstanding
Basic	12,162	11,886	12,039	11,841
Diluted	12,540	12,360	12,581	12,218