Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Revenue
Collaboration and license revenue	$ 10,141	$ 1,085
Revenue from Contract with Customer, Products and Services [Extensible List]	http://www.tscan.com/#CollaborationAndLicenseRevenueMember	http://www.tscan.com/#CollaborationAndLicenseRevenueMember
Operating expenses:
Research and development	$ 44,954	$ 20,577
General and administrative	13,828	6,741
Total operating expenses	58,782	27,318
Loss from operations	(48,641)	(26,233)
Other income:
Interest and other income (loss), net	16	106
Net loss	$ (48,625)	$ (26,127)
Net loss per share, basic and diluted	$ (4.17)	$ (28.52)
Weighted average common shares outstanding—basic and diluted	11,662,672	916,014