Quarterly report pursuant to Section 13 or 15(d)

Segment Reporting - Additional Information (Details)

v3.10.0.1
Segment Reporting - Additional Information (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
USD ($)
Sep. 30, 2017
Sep. 30, 2018
USD ($)
Segment
Sep. 30, 2017
Dec. 31, 2017
USD ($)
Segment Reporting Information [Line Items]          
Number of operating segments | Segment     2    
Demonstration lasers and lasers $ 3,917   $ 3,917   $ 1,934
All other countries [Member] | Maximum [Member]          
Segment Reporting Information [Line Items]          
Percentage of amount of individual customer sales to total revenue 10.00% 10.00% 10.00% 10.00%  
Vascular [Member]          
Segment Reporting Information [Line Items]          
Demonstration lasers and lasers $ 1,200   $ 1,200   200
Dermatology [Member]          
Segment Reporting Information [Line Items]          
Demonstration lasers and lasers $ 900   $ 900   $ 300