Business Segments (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) Segment	Sep. 30, 2019 USD ($)
Business Segments [Abstract]
Number of operating segments | Segment			2
Results of Operations from Business Segments [Abstract]
Revenues	$ 5,613	$ 7,480	$ 16,373	$ 22,688
Cost of revenues	2,383	2,855	6,780	8,544
Gross profit	$ 3,230	$ 4,625	$ 9,593	$ 14,144
Gross profit %	57.50%	61.80%	58.60%	62.30%
Allocated operating expenses [Abstract]
Engineering and product development	$ 411	$ 249	$ 950	$ 788
Selling and marketing	2,051	2,887	6,446	8,911
Unallocated operating expenses	1,929	2,218	5,921	7,398
Total operating expenses	4,391	5,354	13,317	17,097
Loss from operations	(1,161)	(729)	(3,724)	(2,953)
Interest expense, net	(21)	(153)	(38)	(433)
Loss before income taxes	(1,182)	(882)	(3,762)	(3,386)
Dermatology Recurring Procedures [Member]
Results of Operations from Business Segments [Abstract]
Revenues	3,835	5,991	12,332	17,142
Dermatology Procedures Equipment [Member]
Results of Operations from Business Segments [Abstract]
Revenues	1,778	1,489	4,041	5,546
Operating Segments [Member] | Dermatology Recurring Procedures [Member]
Results of Operations from Business Segments [Abstract]
Revenues	3,835	5,991	12,332	17,142
Cost of revenues	1,368	1,966	4,534	5,492
Gross profit	$ 2,467	$ 4,025	$ 7,798	$ 11,650
Gross profit %	64.30%	67.20%	63.20%	68.00%
Allocated operating expenses [Abstract]
Engineering and product development	$ 329	$ 226	$ 828	$ 666
Selling and marketing	1,883	2,762	6,021	8,301
Unallocated operating expenses	0	0	0	0
Total operating expenses	2,212	2,988	6,849	8,967
Loss from operations	255	1,037	949	2,683
Interest expense, net	0	0	0	0
Loss before income taxes	255	1,037	949	2,683
Operating Segments [Member] | Dermatology Procedures Equipment [Member]
Results of Operations from Business Segments [Abstract]
Revenues	1,778	1,489	4,041	5,546
Cost of revenues	1,015	889	2,246	3,052
Gross profit	$ 763	$ 600	$ 1,795	$ 2,494
Gross profit %	42.90%	40.30%	44.40%	45.00%
Allocated operating expenses [Abstract]
Engineering and product development	$ 82	$ 23	$ 122	$ 122
Selling and marketing	168	125	425	610
Unallocated operating expenses	0	0	0	0
Total operating expenses	250	148	547	732
Loss from operations	513	452	1,248	1,762
Interest expense, net	0	0	0	0
Loss before income taxes	$ 513	$ 452	$ 1,248	$ 1,762