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Commitments and Contingencies - Future Lease Payments (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Mar. 31, 2020
Commitments and Contingencies Disclosure [Abstract]    
For the remaining nine months ending December 31, 2021 $ 33  
For the fiscal years ending December 31, 2022 70  
2023 70  
2024 70  
2025 40  
2026 40  
Thereafter 600  
Total undiscounted lease payments 923  
Less: imputed interest (279)  
Present value of lease payments $ 644 $ 127