Quarterly report pursuant to Section 13 or 15(d)

Lease Obligations -Additional Information (Details)

v3.21.2
Lease Obligations -Additional Information (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Jun. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Lessee, Lease, Description [Line Items]          
Remainder of 2021   $ 150   $ 150  
2022   234   234  
Total lease payments   384   384  
Less: imputed interest   (12)   (12)  
Present value of lease liabilities   $ 372   $ 372  
Weighted-average remaining lease term (in years)   8 months 8 days   8 months 8 days  
Weighted-average discount rate   10.50%   10.50%  
Lease expense   $ 130 $ 132 $ 395 $ 405
Richmond, California          
Lessee, Lease, Description [Line Items]          
Term of lease   5 years   5 years  
Lease payment $ 300        
Operating lease, abatement $ 48        
Present value of lease liabilities   $ 79   $ 79  
Hamburg,Germany          
Lessee, Lease, Description [Line Items]          
Term of lease   5 years   5 years  
Renewal term   5 years   5 years