Business Segments (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($) Segment	Mar. 31, 2021 USD ($)
Business Segments [Abstract]
Number of operating segments | Segment	2
Results of Operations from Business Segments [Abstract]
Revenues, net	$ 7,041	$ 5,827
Costs of revenues	2,913	2,114
Gross profit	$ 4,128	$ 3,713
Gross profit %	58.60%	63.70%
Allocated operating expenses [Abstract]
Engineering and product development	$ 163	$ 384
Selling and marketing	3,616	2,932
Unallocated operating expenses	2,652	2,789
Total operating expenses	6,431	6,105
Loss from operations	(2,303)	(2,392)
Interest expense	(199)	(30)
Interest income	0	8
Income (loss) before income taxes	(2,502)	(2,414)
Disaggregation of Revenue by Geographical Region [Abstract]
Revenues, net	7,041	5,827
Domestic [Member]
Results of Operations from Business Segments [Abstract]
Revenues, net	5,384	4,684
Disaggregation of Revenue by Geographical Region [Abstract]
Revenues, net	5,384	4,684
Foreign [Member]
Results of Operations from Business Segments [Abstract]
Revenues, net	1,657	1,143
Disaggregation of Revenue by Geographical Region [Abstract]
Revenues, net	1,657	1,143
Operating Segments [Member] | Dermatology Recurring Procedures [Member]
Results of Operations from Business Segments [Abstract]
Revenues, net	5,067	4,679
Costs of revenues	2,032	1,501
Gross profit	$ 3,035	$ 3,178
Gross profit %	59.90%	67.90%
Allocated operating expenses [Abstract]
Engineering and product development	$ 126	$ 361
Selling and marketing	3,300	2,802
Unallocated operating expenses	0	0
Total operating expenses	3,426	3,163
Loss from operations	(391)	15
Interest expense	0	0
Interest income		0
Income (loss) before income taxes	(391)	15
Disaggregation of Revenue by Geographical Region [Abstract]
Revenues, net	5,067	4,679
Operating Segments [Member] | Dermatology Procedures Equipment [Member]
Results of Operations from Business Segments [Abstract]
Revenues, net	1,974	1,148
Costs of revenues	881	613
Gross profit	$ 1,093	$ 535
Gross profit %	55.40%	46.60%
Allocated operating expenses [Abstract]
Engineering and product development	$ 37	$ 23
Selling and marketing	316	130
Unallocated operating expenses	0	0
Total operating expenses	353	153
Loss from operations	740	382
Interest expense	0	0
Interest income		0
Income (loss) before income taxes	740	382
Disaggregation of Revenue by Geographical Region [Abstract]
Revenues, net	1,974	1,148
Operating Segments [Member] | Domestic [Member] | Dermatology Recurring Procedures [Member]
Results of Operations from Business Segments [Abstract]
Revenues, net	4,689	4,426
Disaggregation of Revenue by Geographical Region [Abstract]
Revenues, net	4,689	4,426
Operating Segments [Member] | Domestic [Member] | Dermatology Procedures Equipment [Member]
Results of Operations from Business Segments [Abstract]
Revenues, net	695	258
Disaggregation of Revenue by Geographical Region [Abstract]
Revenues, net	695	258
Operating Segments [Member] | Foreign [Member] | Dermatology Recurring Procedures [Member]
Results of Operations from Business Segments [Abstract]
Revenues, net	378	253
Disaggregation of Revenue by Geographical Region [Abstract]
Revenues, net	378	253
Operating Segments [Member] | Foreign [Member] | Dermatology Procedures Equipment [Member]
Results of Operations from Business Segments [Abstract]
Revenues, net	1,279	890
Disaggregation of Revenue by Geographical Region [Abstract]
Revenues, net	$ 1,279	$ 890