Commitments and Contingencies - Additional Information (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) ft²	Jun. 30, 2021 USD ($)
Operating Leased Assets [Line Items]
Lease costs	$ 0.1	$ 0.1	$ 0.2	$ 0.2
Operating lease, weighted average remaining lease term	9 months		9 months
Operating lease, weighted average discount rate	5.50%		5.50%
Sudbury, MA
Operating Leased Assets [Line Items]
Rentable office space under operating lease | ft²			11,691
Base rent for office space			$ 0.3
Operating lease expiration date			Feb. 28, 2026
Right to terminate description			The Company has a one-time option to cancel the lease effective February 28, 2023 for any reason or no reason at all
Newton, MA
Operating Leased Assets [Line Items]
Rentable office space under operating lease | ft²			6,055
Base rent for office space			$ 0.3
Right to terminate description			the Newton Lease terminates on the last day of the month following the month either party notifies the other that the term of the lease shall end