Business Segments (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) Segment	Jun. 30, 2019 USD ($)
Business Segments [Abstract]
Number of operating segments | Segment			2
Results of Operations from Business Segments [Abstract]
Revenues	$ 4,030	$ 7,725	$ 10,760	$ 15,208
Cost of revenues	2,066	2,815	4,397	5,689
Gross profit	$ 1,964	$ 4,910	$ 6,363	$ 9,519
Gross profit %	48.70%	63.60%	59.10%	62.60%
Allocated operating expenses [Abstract]
Engineering and product development	$ 247	$ 235	$ 539	$ 539
Selling and marketing	1,442	2,958	4,395	6,024
Unallocated operating expenses	1,890	2,700	3,992	5,180
Total operating expenses	3,579	5,893	8,926	11,743
Loss from operations	(1,615)	(983)	(2,563)	(2,224)
Interest income (expense), net	(18)	(145)	(17)	(280)
Loss before income taxes	(1,633)	(1,128)	(2,580)	(2,504)
Dermatology Recurring Procedures [Member]
Results of Operations from Business Segments [Abstract]
Revenues	2,796	5,839	8,497	11,151
Dermatology Procedures Equipment [Member]
Results of Operations from Business Segments [Abstract]
Revenues	1,234	1,886	2,263	4,057
Operating Segments [Member] | Dermatology Recurring Procedures [Member]
Results of Operations from Business Segments [Abstract]
Revenues	2,796	5,839	8,497	11,151
Cost of revenues	1,364	1,733	3,166	3,526
Gross profit	$ 1,432	$ 4,106	$ 5,331	$ 7,625
Gross profit %	51.20%	70.30%	62.70%	68.40%
Allocated operating expenses [Abstract]
Engineering and product development	$ 225	$ 198	$ 499	$ 440
Selling and marketing	1,341	2,771	4,138	5,539
Unallocated operating expenses	0	0	0	0
Total operating expenses	1,566	2,969	4,637	5,979
Loss from operations	(134)	1,137	694	1,646
Interest income (expense), net	0	0	0	0
Loss before income taxes	(134)	1,137	694	1,646
Operating Segments [Member] | Dermatology Procedures Equipment [Member]
Results of Operations from Business Segments [Abstract]
Revenues	1,234	1,886	2,263	4,057
Cost of revenues	702	1,082	1,231	2,163
Gross profit	$ 532	$ 804	$ 1,032	$ 1,894
Gross profit %	43.10%	42.60%	45.60%	46.70%
Allocated operating expenses [Abstract]
Engineering and product development	$ 22	$ 37	$ 40	$ 99
Selling and marketing	101	187	257	485
Unallocated operating expenses	0	0	0	0
Total operating expenses	123	224	297	584
Loss from operations	409	580	735	1,310
Interest income (expense), net	0	0	0	0
Loss before income taxes	$ 409	$ 580	$ 735	$ 1,310