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Segments - Schedule of Segment Reporting Information, by Segment (Details) - USD ($)		3 Months Ended						9 Months Ended
	May 21, 2024	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting Information [Line Items]
Stock-based compensation expense	$ 600,000	$ 1,456,080			$ 1,640,116			$ 4,673,290	$ 4,776,623
Depreciation and amortization		78,841			88,949			248,628	269,691
Net loss		(14,964,875)	$ (14,433,881)	$ (15,046,132)	(14,597,366)	$ (14,079,927)	$ (14,307,829)	(44,444,888)	(42,985,123)
Reportable Segment
Segment Reporting Information [Line Items]
Non-program expenses		1,894,410			1,380,336			4,677,209	4,223,505
Employee-related costs		4,892,610			5,195,836			15,216,089	16,126,828
Stock-based compensation expense		1,456,080			1,640,116			4,673,290	4,776,623
Depreciation and amortization		78,841			88,949			248,628	269,691
Other segment items		(415,832)			(676,382)			(1,178,362)	(2,528,123)
Net loss		14,964,875			14,597,366			44,444,888	42,985,123
Reportable Segment | atebimetinib (IMM-1-104)
Segment Reporting Information [Line Items]
Program expenses		5,091,491			4,591,547			14,518,757	12,045,176
Reportable Segment | IMM-6-415
Segment Reporting Information [Line Items]
Program expenses		292,917			1,212,407			2,195,284	3,372,353
Reportable Segment | Other programs
Segment Reporting Information [Line Items]
Program expenses		$ 1,674,358			$ 1,164,557			$ 4,093,993	$ 4,699,070

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