Revenue Recognition, Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Abstract]
Revenues, net	$ 5,613	$ 7,480	$ 16,373	$ 22,688
Dermatology Recurring Procedures [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	3,835	5,991	12,332	17,142
Dermatology Procedures Equipment [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	1,778	1,489	4,041	5,546
Domestic [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	3,951	6,232	12,658	18,085
Domestic [Member] | Dermatology Recurring Procedures [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	3,690	5,991	11,957	17,142
Domestic [Member] | Dermatology Procedures Equipment [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	261	241	701	943
Foreign [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	1,662	1,248	3,715	4,603
Foreign [Member] | Dermatology Recurring Procedures [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	145	0	375	0
Foreign [Member] | Dermatology Procedures Equipment [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	$ 1,517	$ 1,248	$ 3,340	$ 4,603