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Commitments and Contingencies - Additional information (Details) - USD ($)		3 Months Ended	12 Months Ended
	Mar. 01, 2023	Mar. 31, 2023	Dec. 31, 2021
Commitments and Contingencies
Financing liability		$ 1,928,000
Accrued settlement		200,000
Penn License Agreement | Penn
Commitments and Contingencies
Annual payments to be made		25,000	$ 10,000
Additional milestone payments for first CAR-M product		1,700,000
Penn License Agreement | Penn | Maximum
Commitments and Contingencies
Milestone payments		10,900,000
Additional milestone payments		30,000,000.0
Novartis Agreement
Commitments and Contingencies
Agreement term	5 years
Renewal term	1 year
Amount payable per calendar year for reserved capacity	$ 1,000,000.0
Termination fee payable	$ 4,000,000.0
Lab equipment
Commitments and Contingencies
Financing liability		$ 2,700,000

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- Definition

Additional amount required to be paid in development and regulatory milestone payments for the first CAR-M product directed to mesothelin.

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Amount required to pay per product in development upon the achievement of certain clinical, regulatory and commercial milestone events.

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Amount of annual payments required to be paid.

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The renewal term of agreement.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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