Revenue, Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Abstract]
Revenues, net	$ 7,483	$ 6,738
Dermatology Recurring Procedures [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	5,312	4,770
Dermatology Procedures Equipment [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	2,171	1,968
Domestic [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	5,636	5,427
Domestic [Member] | Dermatology Recurring Procedures [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	5,312	4,770
Domestic [Member] | Dermatology Procedures Equipment [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	324	657
Foreign [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	1,847	1,311
Foreign [Member] | Dermatology Recurring Procedures [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	0	0
Foreign [Member] | Dermatology Procedures Equipment [Member]
Disaggregation of Revenue [Abstract]
Revenues, net	$ 1,847	$ 1,311