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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2019
Commitments and Contingencies [Abstract]  
Schedule of Future Minimum Rental Payments for Operating Leases
 
 (in thousands)
2020$620  
2021632  
2022645  
2023—  
2024—  
Thereafter—  
Total undiscounted operating lease liability1,897  
Less: amount of lease payments representing interest(242) 
Present value of future lease payments1,655  
Less: short-term operating lease liability(553) 
Long-term operating lease liability$1,102