Leases - Additional Information (Details) $ in Thousands	1 Months Ended				3 Months Ended		9 Months Ended
	May 31, 2021 ft²	Dec. 31, 2020 USD ($)	Sep. 30, 2020	Apr. 30, 2018	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)
Lessee Lease Description [Line Items]
Sublease rent income					$ 134	$ 134	$ 403	$ 157
Variable lease expense					$ 130	109	$ 393	176
Weighted-average remaining lease term					5 years 7 months 6 days		5 years 7 months 6 days
Weighted-average discount rate					7.86%		7.86%
Cash paid for measurement of lease liabilities							$ 800
Arsenal Way Lease
Lessee Lease Description [Line Items]
Lessee, operating lease, commencement month and year		2021-04
Lessee operating lease, renewal term		5 years
Lessee, operating lease, initial term		7 years
Lessee, operating lease, option to extend							The lease has an initial term from the rent commencement date, which is a month after the lease commencement date, of approximately seven years, with an option to extend the term for an additional five years at then-market rental rates.
Lessee, Operating Lease, Existence of Option to Extend [true false]		true
Letter of credit		$ 300
Tenant improvements cost		700
Base rent		$ 1,000
Annual rent increase percentage		3.00%
Rentable square feet | ft²	6,330
Sublease expiration, month and year	2023-03
Sublease rent income					$ 200	$ 200	$ 600	$ 200
Cambridge, Massachusetts
Lessee Lease Description [Line Items]
Lessee, operating lease, commencement month and year				2018-04
Lessee, operating lease, expiration month and year				2020-04
Lessee, operating lease, renewal month and year				2020-03
Lessee operating lease, renewal term				1 year
Lund, Sweden
Lessee Lease Description [Line Items]
Lessee, operating lease, commencement month and year			2020-10
Lessee, operating lease, expiration month and year			2023-09