Revenue Recognition, Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Abstract]
Revenues, net	$ 4,030	$ 7,725	$ 10,760	$ 15,208
Dermatology Recurring Procedures [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	2,796	5,839	8,497	11,151
Dermatology Procedures Equipment [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	1,234	1,886	2,263	4,057
Domestic [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	2,795	6,217	8,707	11,853
Domestic [Member] | Dermatology Recurring Procedures [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	2,670	5,839	8,267	11,151
Domestic [Member] | Dermatology Procedures Equipment [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	125	378	440	702
Foreign [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	1,235	1,508	2,053	3,355
Foreign [Member] | Dermatology Recurring Procedures [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	126	0	230	0
Foreign [Member] | Dermatology Procedures Equipment [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	$ 1,109	$ 1,508	$ 1,823	$ 3,355