Condensed Consolidated Statements of Stockholders’ Equity (Deficit) - USD ($) $ in Thousands	Total	Pre Funded Warrants	Warrant	Common Stock	Additional Paid-in Capital	Additional Paid-in Capital Pre Funded Warrants	Additional Paid-in Capital Warrant	Accumulated Deficit	Accumulated Other Comprehensive (Loss) Income
Beginning balance (in shares) at Dec. 31, 2023				5,894,085
Beginning balance at Dec. 31, 2023	$ 19,670			$ 59	$ 1,215,792			$ (1,196,410)	$ 229
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	1,559				1,559
Unrealized gain on marketable securities	109								109
Net loss	(11,876)							(11,876)
Ending balance (in shares) at Mar. 31, 2024				5,894,085
Ending balance at Mar. 31, 2024	9,462			$ 59	1,217,351			(1,208,286)	338
Beginning balance (in shares) at Dec. 31, 2023				5,894,085
Beginning balance at Dec. 31, 2023	19,670			$ 59	1,215,792			(1,196,410)	229
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(23,679)
Ending balance (in shares) at Jun. 30, 2024				5,904,278
Ending balance at Jun. 30, 2024	(694)			$ 59	1,219,294			(1,220,089)	42
Beginning balance (in shares) at Mar. 31, 2024				5,894,085
Beginning balance at Mar. 31, 2024	9,462			$ 59	1,217,351			(1,208,286)	338
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	1,704				1,704
Issuance of common stock under employee benefit plans, net of shares received to settle minimum tax obligation for vesting of restricted stock awards (in shares)				9,483
Issuance of common stock under employee benefit plans, net of shares received to settle minimum tax obligation for vesting of restricted stock awards	78				78
Stock issued during period value new issues (in shares)				19,676
Stock issued during period value new issues	161				161
Unrealized gain on marketable securities	(296)								(296)
Net loss	(11,803)							(11,803)
Ending balance (in shares) at Jun. 30, 2024				5,904,278
Ending balance at Jun. 30, 2024	$ (694)			$ 59	1,219,294			(1,220,089)	$ 42
Beginning balance (in shares) at Dec. 31, 2024	8,487,818			8,487,818
Beginning balance at Dec. 31, 2024	$ (5,998)			$ 85	1,233,716			(1,239,799)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	1,164				1,164
Issuance of stock under ESPP (in shares)				1,974,432
Issuance of common stock under employee benefit plans, net of shares received to settle minimum tax obligation for vesting of restricted stock awards	2,222			$ 20	2,202
Stock issued during period value new issues		$ 2,447	$ 4,174			$ 2,447	$ 4,174
Net loss	(10,616)							(10,616)
Ending balance (in shares) at Mar. 31, 2025				10,462,250
Ending balance at Mar. 31, 2025	$ (6,607)			$ 105	1,243,703			(1,250,415)
Beginning balance (in shares) at Dec. 31, 2024	8,487,818			8,487,818
Beginning balance at Dec. 31, 2024	$ (5,998)			$ 85	1,233,716			(1,239,799)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ (19,209)
Ending balance (in shares) at Jun. 30, 2025	10,708,393			10,708,393
Ending balance at Jun. 30, 2025	$ (13,986)			$ 107	1,244,915			(1,259,008)
Beginning balance (in shares) at Mar. 31, 2025				10,462,250
Beginning balance at Mar. 31, 2025	(6,607)			$ 105	1,243,703			(1,250,415)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	1,135				1,135
Issuance of stock under ESPP (in shares)				24,388
Issuance of common stock under employee benefit plans, net of shares received to settle minimum tax obligation for vesting of restricted stock awards	77				77
Cancellation of restricted stock awards (in shares)				(500)
Exercise of pre-funded warrants (in shares)				222,255
Exercise of pre-funded warrants	2			$ 2
Net loss	$ (8,593)							(8,593)
Ending balance (in shares) at Jun. 30, 2025	10,708,393			10,708,393
Ending balance at Jun. 30, 2025	$ (13,986)			$ 107	$ 1,244,915			$ (1,259,008)

CURIS INC 10-Q