Business Segments (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) Segment	Jun. 30, 2020 USD ($)
Business Segments [Abstract]
Number of operating segments | Segment			2
Results of Operations from Business Segments [Abstract]
Revenues	$ 7,382	$ 4,030	$ 13,209	$ 10,760
Cost of revenues	2,621	2,066	4,735	4,397
Gross profit	$ 4,761	$ 1,964	$ 8,474	$ 6,363
Gross profit %	64.50%	48.70%	64.20%	59.10%
Allocated operating expenses [Abstract]
Engineering and product development	$ 403	$ 247	$ 787	$ 539
Selling and marketing	3,160	1,442	6,092	4,395
Unallocated operating expenses	2,121	1,890	4,910	3,992
Total operating expenses	5,684	3,579	11,789	8,926
Income (loss) from operations	(923)	(1,615)	(3,315)	(2,563)
Gain on extinguishment of debt	2,028	0	2,028	0
Interest expense, net	(19)	(18)	(41)	(17)
Income (loss) before income taxes	1,086	(1,633)	(1,328)	(2,580)
Dermatology Recurring Procedures [Member]
Results of Operations from Business Segments [Abstract]
Revenues	5,452	2,796	10,131	8,497
Dermatology Procedures Equipment [Member]
Results of Operations from Business Segments [Abstract]
Revenues	1,930	1,234	3,078	2,263
Operating Segments [Member] | Dermatology Recurring Procedures [Member]
Results of Operations from Business Segments [Abstract]
Revenues	5,452	2,796	10,131	8,497
Cost of revenues	1,635	1,364	3,136	3,166
Gross profit	$ 3,817	$ 1,432	$ 6,995	$ 5,331
Gross profit %	70.00%	51.20%	69.00%	62.70%
Allocated operating expenses [Abstract]
Engineering and product development	$ 319	$ 225	$ 680	$ 499
Selling and marketing	2,909	1,341	5,711	4,138
Unallocated operating expenses	0	0	0	0
Total operating expenses	3,228	1,566	6,391	4,637
Income (loss) from operations	589	(134)	604	694
Gain on extinguishment of debt	0		0
Interest expense, net	0	0	0	0
Income (loss) before income taxes	589	(134)	604	694
Operating Segments [Member] | Dermatology Procedures Equipment [Member]
Results of Operations from Business Segments [Abstract]
Revenues	1,930	1,234	3,078	2,263
Cost of revenues	986	702	1,599	1,231
Gross profit	$ 944	$ 532	$ 1,479	$ 1,032
Gross profit %	48.90%	43.10%	48.10%	45.60%
Allocated operating expenses [Abstract]
Engineering and product development	$ 84	$ 22	$ 107	$ 40
Selling and marketing	251	101	381	257
Unallocated operating expenses	0	0	0	0
Total operating expenses	335	123	488	297
Income (loss) from operations	609	409	991	735
Gain on extinguishment of debt	0		0
Interest expense, net	0	0	0	0
Income (loss) before income taxes	$ 609	$ 409	$ 991	$ 735