CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 15,001	$ 5,061
Prepaid expenses and other current assets	1,610	1,854
Total current assets	16,611	6,915
Property and equipment, net	54	62
Restricted cash, long-term	544	544
Operating lease right-of-use asset	1,552	1,890
Other assets	1,943	1,573
Goodwill	8,982	8,982
Total assets	29,686	19,966
Current liabilities:
Accounts payable	6,742	5,612
Accrued liabilities	7,003	7,274
Current portion of operating lease liability	1,229	1,190
Total current liabilities	14,974	14,076
Long-term operating lease liability	108	428
Warrant liability	1,897	0
Total liabilities	16,979	14,504
Stockholders’ equity:
Preferred stock, $0.01 par value—5,000,000 shares authorized, no shares issued and outstanding at March 31, 2026 and December 31, 2025	0	0
Common stock, $0.01 par value—283,757,150 shares authorized, 39,978,693 shares issued and outstanding at March 31, 2026; 68,343,750 shares authorized, 12,928,853 shares issued and outstanding at December 31, 2025	400	129
Additional paid-in capital	1,283,887	1,252,714
Accumulated deficit	(1,271,580)	(1,247,381)
Total stockholders’ equity	12,707	5,462
Total liabilities and stockholders’ equity	$ 29,686	$ 19,966

Warrant Liability, Noncurrent

No definition available.

Name:	cris_WarrantLiabilityNoncurrent
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).