Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies - Additional Information (Details)

v3.19.1
Significant Accounting Policies - Additional Information (Details) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Jan. 01, 2019
Deferred revenue     $ 2,800,000
Deferred revenue, recognized $ 600,000    
Remaining service period to recognize deferred revenue, description 2024    
Capitalized contract cost, net $ 400,000   300,000
Laser revenue 200,000 $ 100,000  
New accounting pronouncement or change in accumulated deficit     21,000
Operating lease right-of-use-assets 3,084,000   3,200,000
Operating lease, liability $ 3,153,000    
ASU 2016-02 [Member]      
Operating lease right-of-use-assets     3,200,000
Operating lease, liability     $ 3,200,000
Minimum [Member]      
Extended warranty service contracts terms 12 months    
Maximum [Member]      
Extended warranty service contracts terms 60 months    
Capitalized contract cost amortization period 1 year