Quarterly report pursuant to Section 13 or 15(d)

Leases - Additional Information (Details)

v3.20.2
Leases - Additional Information (Details)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2020
USD ($)
Lease
Jun. 30, 2019
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Operating Leased Assets [Line Items]        
Number of leases | Lease 2      
Operating lease, discount rate 7.00%   7.00%  
Operating lease, weighted average remaining lease term 7 years 6 months   7 years 6 months  
Operating lease expense $ 100 $ 100 $ 300 $ 300
Operating lease , cash payment 100 100 300 200
Operating lease right-of-use-assets amortization $ 100 $ 100 $ 173 $ 162
Office Building [Member]        
Operating Leased Assets [Line Items]        
Lease expiration period 2027      
Manufacturing Facility [Member]        
Operating Leased Assets [Line Items]        
Lease expiration period 2021