Leases - Additional Information (Detail)				3 Months Ended
	Jun. 05, 2020 USD ($)	Jun. 01, 2020 USD ($) ft²	Mar. 31, 2004 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($) mo	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Jan. 01, 2019 USD ($)
Leases [Line Items]
Finance lease right-of-use assets				$ 2,617,000		$ 2,842,000
Total amount from equipment financing commitment					$ 894,000
Finance lease transaction, frequency of payments					monthly
Finance lease transaction, monthly installments of principal and interest payments					$ 21,330
Finance lease transaction, total amount to be repaid					$ 1,100,000
Finance lease transaction, commitment period					2026-03
Operating lease monthly payments				396,000	$ 53,000
Operating lease, right-of-use asset				8,892,000		9,026,000
Operating lease liability				$ 10,047,000
Finance lease, weighted average remaining lease term				2 years 6 months
Operating lease, weighted average remaining lease term				9 years 3 months
Finance lease, weighted average discount rate, percent				19.00%
Operating lease, weighted average discount rate, percent				12.00%
Additional exchanges of right of use assets for financed lease liabilities				$ 0
ASC Topic 842 [Member]
Leases [Line Items]
Finance lease right-of-use assets								$ 1,400,000
Financed equipment				6,000,000.0		6,000,000.0
Accumulated depreciation related to equipment under finance leases				3,400,000		3,200,000
Depreciation expense related to equipment under finance leases				$ 225,000	$ 172,000
Operating lease transaction, frequency of payments			monthly cash payment
Operating lease monthly payments			$ 120,000
Operating lease term			Jul. 31, 2020
Operating lease, right-of-use asset								1,900,000
Operating lease liability								$ 2,200,000
Operating lease incremental borrowing rate								4.50%
ASC Topic 842 [Member] | 5810 Nancy Ridge Road in San Diego, California [Member]
Leases [Line Items]
Operating lease, right-of-use asset	$ 482,000
Operating lease liability	$ 482,000
Lessee, operating lease, option to extend				Pursuant to the Amendment, the expiration date of the lease was extended from July 31, 2020 to November 30, 2020.
Lease expire date	Nov. 30, 2020
Lessee, operating lease, existence of option to extend	true
Additional extension facility extending the lease	December 11, 2020
ASC Topic 842 [Member] | 9955 Mesa Rim Road in San Diego, California [Member]
Leases [Line Items]
Operating lease monthly payments		$ 128,000
Operating lease, right-of-use asset							$ 9,800,000
Operating lease liability							9,800,000
Operating lease incremental borrowing rate		12.00%
Lease agreement | ft²		39,000
Lease commenced date		Dec. 01, 2020
Lessee, operating lease, term of contract		127 months
Lease term, description				The lease includes a rent abatement period of seven months, from January 2021 through July of 2021, during which period the Company is exempted from paying the amount of base rent of $111,000.
Rent Expense		$ 111,000
Leasehold improvement allowance		1,600,000
Additional leasehold improvement allowance		$ 1,600,000
Additional rent payment of percentage		7.00%
Additional rent payment		$ 18,000
Lessee operating lease initial monthly lease payments		$ 140,000
Reimbursable leasehold improvement costs						$ 1,800,000	$ 1,600,000
Minimum [Member]
Leases [Line Items]
Finance lease transaction, number of installments payments | mo					36
Minimum [Member] | ASC Topic 842 [Member]
Leases [Line Items]
Financed equipment useful life				5 years
Maximum [Member]
Leases [Line Items]
Finance lease transaction, number of installments payments | mo					60
Maximum [Member] | ASC Topic 842 [Member]
Leases [Line Items]
Financed equipment useful life				7 years