Quarterly report pursuant to Section 13 or 15(d)

Lease Agreements (Details)

v3.20.2
Lease Agreements (Details)
 9 Months Ended
Jan. 01, 2019
USD ($)
Sep. 30, 2020
USD ($)
item
Dec. 31, 2019
USD ($)
Jul. 31, 2017
ft²
Dec. 31, 2014
ft²
Sublease Agreement          
Number of lease renewal periods | item   2      
Lease renewal term (in years)   5 years      
Area of real estate property (square feet) | ft²       9,328 57,000
Expected income from sublease   $ 10,700,000      
Right-of-use assets   19,873,000 $ 25,709,000    
Lease liability   $ 21,263,000      
Weighted average remaining lease term   2 years 3 months 29 days      
Leasehold improvement          
Sublease Agreement          
Right-of-use assets   $ 563,000      
Lease liability   $ 563,000      
Accounting Standards Update 2016-02          
Sublease Agreement          
Right-of-use assets $ 32,800,000        
Lease liability 33,200,000        
Derecognized deferred rent 399,000        
Estimated incremental borrowing rate for estimation of present value of lease payments   9.00%      
Cumulative-effect adjustment on accumulated deficit $ 0