Grant Revenue (Details) - USD ($)	1 Months Ended					3 Months Ended		6 Months Ended		61 Months Ended	73 Months Ended
	Dec. 31, 2019	Oct. 31, 2017	May 31, 2017	Jun. 30, 2016	May 31, 2016	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Grant Revenue
Revenue						$ 50,981	$ 459,494	$ 263,399	$ 998,139
Grant receivable						1,524,522		1,524,522		$ 1,524,522	$ 1,524,522	$ 1,318,359
Pelican Therapeutics, Inc.
Grant Revenue
Amount awarded from CPRIT grant					$ 15,200,000
Pelican Therapeutics, Inc. | Grant revenue
Grant Revenue
Revenue										15,200,000	15,200,000
Remaining grant amount receivable						1,500,000		1,500,000		1,500,000	1,500,000
Amount the company is required to match of each dollar of grant						0.50		0.50		0.50	0.50
Threshold amount for match of grant						1.00		1.00		1.00	1.00
Contribution to be made by Pelican						$ 7,600,000		$ 7,600,000		$ 7,600,000	$ 7,600,000
Pelican Therapeutics, Inc. | Grant revenue | Maximum
Grant Revenue
Amount awarded from CPRIT grant				$ 15,200,000
Royalty percentage after threshold is met								1.00%
Pelican Therapeutics, Inc. | Grant revenue | Tranche 1
Grant Revenue
Revenue			$ 1,800,000
Pelican Therapeutics, Inc. | Grant revenue | Tranche 2
Grant Revenue
Revenue		$ 6,500,000
Pelican Therapeutics, Inc. | Grant revenue | Tranche 3
Grant Revenue
Revenue	$ 5,400,000