Revenue (Details)		3 Months Ended		12 Months Ended
	Jan. 29, 2024 USD ($)	Mar. 31, 2024 USD ($) customer	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Process Development Revenue
Process development revenue recognized		$ 3,500,000	$ 700,000
Process development contract liabilities, beginning of period		(2,389,441)	(1,618,308)	$ (1,618,308)
Reclassification to revenue as the result of performance obligations satisfied		3,508,113	665,900
Net change to contract balance recognized since beginning of period due to amounts collected		(1,709,931)	(1,119,578)
Process development contract liabilities, end of period		(591,259)	(2,071,986)	(2,389,441)
Accounts receivable		$ 535,028		$ 375,192	$ 81,456
Two customers
Process Development Revenue
Number of customers process development revenue was derived from | customer		2
Sales revenue net | Customer Concentration Risk | Two customers
License Revenue
Concentration risk, percentage		10.00%
Shattuck | Kopfkino IP, LLC
License Revenue
Consideration	$ 1,000,000.0
Grant and contract revenue
License Revenue
Amount Awarded From NIH Grant		$ 8,000	$ 0