Annual report pursuant to Section 13 and 15(d)

Property and Equipment, Net - Additional Information (Details)

v3.20.1
Property and Equipment, Net - Additional Information (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Property Plant And Equipment [Line Items]    
Depreciation and amortization expense $ 879,000 $ 670,000
Capitalized internal-use software development costs 602,000 657,000
Stock-based compensation expense capitalized 0 0
Amortization of capitalized software development costs 355,000 $ 371,000
Internal-use Software In-use    
Property Plant And Equipment [Line Items]    
Capitalized internal-use software development costs 60,000  
Internal-use Software Development In-progress    
Property Plant And Equipment [Line Items]    
Capitalized internal-use software development costs $ 542,000