Leases - Additional Information (Details) - USD ($)		1 Months Ended		3 Months Ended		6 Months Ended	12 Months Ended
	May 31, 2020	Oct. 31, 2022	Jun. 30, 2022	Mar. 31, 2023	Mar. 31, 2022	Jun. 30, 2022	Dec. 31, 2022		Feb. 28, 2023
Lessee Lease Description [Line Items]
Operating lease liability				$ 269,000			$ 377,000
Finance lease ROU asset and Finance lease liability									$ 70,000
Operating lease asset				171,000			291,000	[1]
Future rent expense				$ 176,000,000
Finance lease amortized period on equipment service				18 months
Finance lease amortization of right of use assets				$ 3,000
Impairment charges				$ 0	$ 0
Minimum
Lessee Lease Description [Line Items]
Operating lease remaining term on a straight-line basis				8 months
Maximum
Lessee Lease Description [Line Items]
Operating lease remaining term on a straight-line basis				9 months
San Diego, California
Lessee Lease Description [Line Items]
Lease agreement period	3 years
Operating lease payments	$ 337,000
Impairment charges			$ 136,000
San Diego, California | Prepaid Expenses and Other Current Assets
Lessee Lease Description [Line Items]
Security deposit paid				$ 29,000
South San Francisco
Lessee Lease Description [Line Items]
Operating lease payments						$ 271,000,000
Operating lease liability			$ 256,000			$ 256,000
Security deposit paid				17,000,000
West Lafayette
Lessee Lease Description [Line Items]
Lease agreement period		15 months
Operating lease payments		$ 151,000,000
Operating lease liability		$ 145,000,000
Loan proceeds used to offset rent expense, utility costs and mortgage interest expense				57,000
Right-of-use assets obtained in exchange for new operating lease liabilities							$ 10,000
Impairment charges				66,000
West Lafayette | Accrued Expenses And Other Current Liabilities
Lessee Lease Description [Line Items]
Security deposit paid				$ 6,000

[1] The balance sheet as of December 31, 2022 is derived from the audited financial statements as of that date.