Annual report pursuant to Section 13 and 15(d)

Lease - Details of Right-of-Use Assets and Lease Liabilities (Details)

v3.20.4
Lease - Details of Right-of-Use Assets and Lease Liabilities (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Lessee Disclosure [Abstract]      
Cash paid for operating lease liabilities $ 900 $ 774  
Operating lease costs 1,099 1,099  
Variable lease costs 542 505 $ 400
2021 1,542    
2022 1,588    
2023 1,635    
2024 1,684    
2025 282    
Total undiscounted lease payments 6,731    
Less: imputed interest (1,267)    
Total lease liabilities 5,464    
Operating lease liabilities, current 1,042 900  
Operating lease liabilities, noncurrent 4,422 $ 5,464  
Total operating lease liabilities $ 5,464