CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT) - USD ($) $ in Thousands	Total	Preferred Stock Convertible Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance at Dec. 31, 2022	$ (76,825)	$ 149,749	$ 1	$ 6,038		$ (82,864)
Beginning balance, shares at Dec. 31, 2022		61,730,064	3,570,019
Exercise of common stock options	140			140
Exercise of common stock options, shares			55,599
Vesting of restricted stock awards and stock options	73			73
Conversion of convertible preferred stock to common stock in connection with the Merger	149,749	$ (149,749)	$ 18	149,731
Conversion of convertible preferred stock to common stock in connection with the Merger, shares		(61,730,064)	18,216,847
Issuance of common stock in the Financing Transaction, net of issuance costs	159,544		$ 13	159,531
Issuance of common stock in the Financing Transaction, net of issuance costs, shares			12,638,636
Issuance of common stock to former stockholders of Imara Inc. in connection with the Merger	80,241		$ 7	80,234
Issuance of common stock to former stockholders of Imara Inc. in connection with the Merger, shares			6,625,176
Adjustment for change in common stock par value in connection with the Merger			$ 2	(2)
Reverse recapitalization transaction costs	(9,044)			(9,044)
Stock-based compensation	2,262			2,262
Net loss	(14,724)					(14,724)
Ending balance at Mar. 31, 2023	291,416		$ 41	388,963		(97,588)
Ending balance, shares at Mar. 31, 2023			41,106,277
Beginning balance at Dec. 31, 2023	245,906		$ 41	400,172	$ 141	(154,448)
Beginning balance, shares at Dec. 31, 2023			41,292,027
Exercise of common stock options	320			320
Exercise of common stock options, shares			130,780
Vesting of restricted stock awards and stock options	73			73
Vesting of restricted stock units			2,688
Issuance of common stock and Pre-Funded Warrants in the Private Placement, net of issuance costs	89,830		$ 6	89,824
Issuance of common stock and Pre-Funded Warrants in the Private Placement, net of issuance costs, shares			5,357,144
Stock-based compensation	4,515			4,515
Net loss	(22,738)					(22,738)
Other comprehensive loss	(194)				(194)
Ending balance at Mar. 31, 2024	$ 317,712		$ 47	$ 494,904	$ (53)	$ (177,186)
Ending balance, shares at Mar. 31, 2024			46,782,639