Leases - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended
	Jan. 31, 2021	May 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Lessee Lease Description [Line Items]
Rent expense			$ 0.6	$ 0.4
Cash paid for operating leases			$ 0.4	$ 0.4
Weighted-average discount rate			9.00%
Operating lease not yet commenced minimum lease payments			$ 0.7
Corporate Office and Laboratory Space
Lessee Lease Description [Line Items]
Weighted-average remaining lease term			7 years 7 months 6 days
Renewal term		7 years
Corporate Office and Laboratory Facilities
Lessee Lease Description [Line Items]
Lease term		8 years
Lease expiration year		2029
Operating lease, existence of option to extend		true
Lessee option to extend description			The lease amendment also includes an extension of the lease term for the existing office and laboratory space beginning on May 1, 2020 and expiring in January 2029. The lease agreement includes an option to extend the lease for an additional seven-year term
Corporate Office and Laboratory Facilities | Third amendment
Lessee Lease Description [Line Items]
Lessee option to extend description			The lease of this additional space commenced in April 2021 and expires in March 2024. The other terms of the existing lease remain unchanged
Lease expiration month and year	2024-03