Grant Revenue (Details) - USD ($)	1 Months Ended					12 Months Ended		55 Months Ended	67 Months Ended
	Dec. 31, 2019	Oct. 31, 2017	May 31, 2017	Jun. 30, 2016	May 31, 2016	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2021
Grant Revenue
Revenue						$ 2,112,806	$ 2,947,969
Remaining grant amount receivable						1,300,000		$ 1,300,000	$ 1,300,000
Grant revenue
Grant Revenue
Revenue								13,700,000
Pelican Therapeutics, Inc.
Grant Revenue
Amount awarded from CPRIT grant					$ 15,200,000
Contribution to be made by Pelican						7,600,000		7,600,000	7,600,000
Pelican Therapeutics, Inc. | Tranche 1
Grant Revenue
Revenue			$ 1,800,000
Pelican Therapeutics, Inc. | Tranche 2
Grant Revenue
Revenue		$ 6,500,000
Pelican Therapeutics, Inc. | Tranche 3
Grant Revenue
Revenue	$ 5,400,000
Pelican Therapeutics, Inc. | Grant revenue
Grant Revenue
Revenue									13,700,000
Remaining grant amount receivable						1,500,000		$ 1,500,000	$ 1,500,000
Customary matching funds requirement per $1.00 from CPRIT						$ 0.50
Pelican Therapeutics, Inc. | Grant revenue | Maximum
Grant Revenue
Amount of grant under Grant Contract with CIPRIT				$ 15,200,000
Royalty percentage after threshold is met						1.00%