Leases - Narrative (Details)	Feb. 11, 2021 USD ($) ft² contract	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Apr. 30, 2021 USD ($)	Jul. 01, 2019 USD ($)	Jun. 19, 2019 USD ($) ft²
Lessee, Lease, Description [Line Items]
Liability to be paid		$ 776,000
Operating lease, liability, payments, due year two		800,000
Operating lease, right-of-use asset		2,039,000	$ 2,564,000
Operating lease payments due		2,677,000
Restricted cash		62,000	62,000
Finance lease liability		0	0
Prior Premises
Lessee, Lease, Description [Line Items]
Net rentable area | ft²						8,727
Term of lease						2 years 6 months
Liability to be paid						$ 400,000
Operating lease, liability, payments, due year two						$ 400,000
Initial direct cost liability					$ 800,000
Operating lease, right-of-use asset					600,000
Deferred credit, operating lease liability					$ 200,000
Campus Point Lease
Lessee, Lease, Description [Line Items]
Term of lease	60 months
Initial direct cost liability	$ 3,200,000			$ 100,000
Operating lease, right-of-use asset	3,000,000			100,000
Deferred credit, operating lease liability	$ 200,000
Rented area | ft²	13,438
Operating lease payments due	$ 3,800,000
Restricted cash		$ 62,000	$ 62,000
Nonrefundable lease cost for assignment of lease	$ 60,000
Number of operating lease contracts | contract	3
Deferred cost of liability				$ 200,000