Business Segments (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) Segment	Sep. 30, 2020 USD ($)
Business Segments [Abstract]
Number of operating segments | Segment			2
Results of Operations from Business Segments [Abstract]
Revenues	$ 7,711	$ 5,613	$ 20,920	$ 16,373
Cost of revenues	2,335	2,383	7,070	6,780
Gross profit	$ 5,376	$ 3,230	$ 13,850	$ 9,593
Gross profit %	69.70%	57.50%	66.20%	58.60%
Allocated operating expenses [Abstract]
Engineering and product development	$ 371	$ 411	$ 1,158	$ 950
Selling and marketing	3,295	2,051	9,387	6,446
Unallocated operating expenses	2,175	1,929	7,085	5,921
Total operating expenses	5,841	4,391	17,630	13,317
Income (loss) from operations	(465)	(1,161)	(3,780)	(3,724)
Gain on forgiveness of debt			2,028	0
Interest expense, net	(52)	(21)	(93)	(38)
Income (loss) before income taxes	(517)	(1,182)	(1,845)	(3,762)
Dermatology Recurring Procedures [Member]
Results of Operations from Business Segments [Abstract]
Revenues	5,710	3,835	15,841	12,332
Dermatology Procedures Equipment [Member]
Results of Operations from Business Segments [Abstract]
Revenues	2,001	1,778	5,079	4,041
Operating Segments [Member] | Dermatology Recurring Procedures [Member]
Results of Operations from Business Segments [Abstract]
Revenues	5,710	3,835	15,841	12,332
Cost of revenues	1,512	1,368	4,648	4,534
Gross profit	$ 4,198	$ 2,467	$ 11,193	$ 7,798
Gross profit %	73.50%	64.30%	70.70%	63.20%
Allocated operating expenses [Abstract]
Engineering and product development	$ 333	$ 329	$ 1,013	$ 828
Selling and marketing	3,094	1,883	8,805	6,021
Unallocated operating expenses	0	0	0	0
Total operating expenses	3,427	2,212	9,818	6,849
Income (loss) from operations	771	255	1,375	949
Gain on forgiveness of debt			0
Interest expense, net	0	0	0	0
Income (loss) before income taxes	771	255	1,375	949
Operating Segments [Member] | Dermatology Procedures Equipment [Member]
Results of Operations from Business Segments [Abstract]
Revenues	2,001	1,778	5,079	4,041
Cost of revenues	823	1,015	2,422	2,246
Gross profit	$ 1,178	$ 763	$ 2,657	$ 1,795
Gross profit %	58.90%	42.90%	52.30%	44.40%
Allocated operating expenses [Abstract]
Engineering and product development	$ 38	$ 82	$ 145	$ 122
Selling and marketing	201	168	582	425
Unallocated operating expenses	0	0	0	0
Total operating expenses	239	250	727	547
Income (loss) from operations	939	513	1,930	1,248
Gain on forgiveness of debt			0
Interest expense, net	0	0	0	0
Income (loss) before income taxes	$ 939	$ 513	$ 1,930	$ 1,248