Annual report pursuant to Section 13 and 15(d)

Segment Reporting - Additional Information (Details)

v3.19.1
Segment Reporting - Additional Information (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
Segment
Dec. 31, 2017
USD ($)
Segment Reporting Information [Line Items]    
Number of operating segments | Segment 2  
Property and equipment, gross $ 6,070 $ 1,934
Vascular [Member]    
Segment Reporting Information [Line Items]    
Property and equipment, gross 2,200 200
Dermatology [Member]    
Segment Reporting Information [Line Items]    
Property and equipment, gross $ 700 $ 300