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License Agreements - Additional Information (Details) - USD ($)			1 Months Ended	3 Months Ended			12 Months Ended
	Sep. 07, 2023	Mar. 29, 2020	Jan. 31, 2022	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Research and development expense				$ 2,763,000		$ 2,983,000	$ 9,690,000	$ 9,698,000
Voting stock, value				5,000	$ 5,000		5,000	$ 2,000
Biocept Agreement [Member]
Shares issued	53,381
Research and development expense				75,000	75,000
Payment for tech transfer and validation fee	$ 300,000
Option for exclusive worldwide license	$ 1,000,000
UTHSA License Agreement [Member]
License fee payment in cash			$ 300,000
Nano Tx Licenses Agreement [Member]
License fee payment in cash		$ 400,000
Voting stock, value		$ 300,000
Percentage of non-dilutive monetary awards required to pay		15.00%
Accrued payments due to NanoTx				$ 500,000	$ 500,000		$ 500,000

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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