Revenue, Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Abstract]
Revenues	$ 7,892	$ 7,285	$ 21,892	$ 22,852
Revenue from customers excluding Nordlys product line	7,835	7,165	21,558	22,343
Dermatology Recurring Procedures [Member]
Disaggregation of Revenue [Abstract]
Revenues	5,556	5,525	15,221	17,051
Dermatology Procedures Equipment [Member]
Disaggregation of Revenue [Abstract]
Revenues	2,366	1,760	6,671	5,801
Domestic [Member]
Disaggregation of Revenue [Abstract]
Revenues	5,922	6,142	16,558	19,010
Domestic [Member] | Dermatology Recurring Procedures [Member]
Disaggregation of Revenue [Abstract]
Revenues	5,556	5,525	15,221	17,051
Domestic [Member] | Dermatology Procedures Equipment [Member]
Disaggregation of Revenue [Abstract]
Revenues	366	617	1,337	1,959
Foreign [Member]
Disaggregation of Revenue [Abstract]
Revenues	1,970	1,143	5,334	3,842
Foreign [Member] | Dermatology Recurring Procedures [Member]
Disaggregation of Revenue [Abstract]
Revenues	0	0	0	0
Foreign [Member] | Dermatology Procedures Equipment [Member]
Disaggregation of Revenue [Abstract]
Revenues	$ 1,970	$ 1,143	$ 5,334	$ 3,842