Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies - Additional Information (Details)

v3.19.3
Significant Accounting Policies - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Jan. 01, 2019
Deferred revenue         $ 2,800,000
Deferred revenue, recognized $ 600,000   $ 1,200,000    
Remaining service period to recognize deferred revenue, description     2024    
Capitalized contract cost, net 400,000   $ 400,000   400,000
Laser revenue 200,000 $ 100,000 300,000 $ 200,000  
New accounting pronouncement or change in accumulated deficit         21,000
Operating lease right-of-use-assets 3,002,000   3,002,000    
Operating lease, liability $ 3,082,000   $ 3,082,000    
ASU 2016-02 [Member]          
Operating lease right-of-use-assets         3,200,000
Operating lease, liability         $ 3,200,000
Minimum [Member]          
Regular warranty service contracts term     12 months    
Maximum [Member]          
Extended warranty service contracts term     60 months    
Capitalized contract cost amortization period     1 year