Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies - Additional Information (Details)

v3.21.1
Significant Accounting Policies - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Jan. 01, 2021
Dec. 31, 2020
Jan. 01, 2020
Deferred revenue     $ 2.5   $ 3.3
Deferred revenue, recognized $ 0.6 $ 0.7      
Remaining service period to recognize deferred revenue, description 2024        
Capitalized contract cost, net $ 0.2     $ 0.2  
Laser revenue $ 0.1 $ 0.2      
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