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Grant Revenue - Additional Information (Details) - USD ($)		3 Months Ended		9 Months Ended
	Sep. 19, 2022	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Oct. 04, 2024	Sep. 01, 2024
Grant [Member]
Disaggregation of Revenue [Line Items]
Revenue recognized		$ 1,456,000	$ 1,240,000	$ 4,412,000	$ 3,600,000
CPRIT Contract [Member]
Disaggregation of Revenue [Line Items]
Grant funding term	3 years
CPRIT grant funding term, description				The CPRIT Grant is subject to customary CPRIT funding conditions, including, but not limited to, a matching fund requirement (one dollar for every two dollars awarded by CPRIT), revenue sharing obligations upon commercialization of rhenium (186Re) obisbemeda based on specific dollar thresholds and tiered low single digit royalty rates until CPRIT receives the aggregate amount of 400% of the proceeds awarded under the CPRIT Grant, and certain reporting requirements.
Contract effective date	Aug. 31, 2022
Contract termination date	Aug. 30, 2025
Percentage of aggregate amount of proceeds awarded under CPRIT grant	400.00%
Percentage of grant proceeds with interest not exceed annually	5.00%
CPRIT Contract [Member] | Grant [Member]
Disaggregation of Revenue [Line Items]
Revenue recognized		$ 1,500,000	$ 4,400,000	$ 1,200,000	$ 3,600,000
Department of Defense Award [Member]
Disaggregation of Revenue [Line Items]
Research and development award period							3 years
Grant revenue				$ 0
Department of Defense Award [Member] | Subsequent Event
Disaggregation of Revenue [Line Items]
First payment received						$ 900,000
Congressionally Directed Medical Research Programs [Member]
Disaggregation of Revenue [Line Items]
Amount to be received as award for research and development							$ 3,000,000

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