CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 9,051	$ 19,997
Accounts receivable	3,243	3,349
Prepaid expenses and other current assets	1,613	3,039
Total current assets	13,907	26,385
Property and equipment, net	98	231
Restricted cash, long-term	544	544
Operating lease right-of-use asset	2,221	3,163
Other assets	1,889	1,960
Goodwill	8,982	8,982
Total assets	27,641	41,265
Current liabilities:
Accounts payable	4,445	3,024
Accrued liabilities	7,288	7,111
Current portion of operating lease liability	1,228	1,336
Current portion of liability related to sale of future royalties	6,951	7,556
Total current liabilities	19,912	19,027
Long-term operating lease liability	740	1,618
Liability related to the sale of future royalties, net	21,680	26,618
Total liabilities	42,332	47,263
Stockholders’ deficit:
Preferred stock, $0.01 par value—5,000,000 shares authorized, no shares issued and outstanding at September 30, 2025 and December 31, 2024	0	0
Common stock, $0.01 par value—68,343,750 shares authorized, 12,733,853 shares issued and outstanding at September 30, 2025; 34,171,875 shares authorized, 8,487,818 shares issued and outstanding at December 31, 2024	127	85
Additional paid-in capital	1,251,919	1,233,716
Accumulated deficit	(1,266,737)	(1,239,799)
Total stockholders’ deficit	(14,691)	(5,998)
Total liabilities and stockholders’ deficit	$ 27,641	$ 41,265

Royalty Guarantees, Commitments, Amount, Noncurrent

No definition available.

Name:	cris_RoyaltyGuaranteesCommitmentsAmountNoncurrent
Namespace Prefix:	cris_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).