Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Details)

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Commitments and Contingencies - Additional Information (Details) - Operating Lease Agreement - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Commitments and Contingencies [Line Items]        
Operating lease, description     The lease term commenced in May 2019 and will expire in July 2022.  
Lease commencement period     2019-05  
Lease expiration period     2022-07  
Initial annual base rent     $ 261,000  
Percentage of annual increase of base rent     2.00%  
Rent expense $ 68,000 $ 66,000 $ 136,000 $ 133,000