CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025	Jun. 30, 2025
Current assets:
Cash and cash equivalents	$ 5,541	$ 6,638
Restricted cash	254	166
Marketable securities	64,137	69,491
Prepaid expenses and other current assets	1,673	3,038
Assets held for sale		112,096	$ 0
Total current assets	71,605	191,429
Property, plant and equipment, net	111,778	126
Operating lease right-of-use assets	2,149	238
Accrued rent receivable	8,271	7,664
Other long-term assets	3,909	4,066
Total assets	197,712	203,523
Current liabilities:
Accounts payable	795	779
Accrued expenses and other current liabilities	2,510	4,064
Total current liabilities	3,305	4,843
Operating lease liabilities, non-current	1,835	0
Loan payable	85,192	84,806
Other long-term liabilities	0	8
Total liabilities	90,332	89,657
Commitments and contingencies (Note 9)
Stockholders’ equity:
Preferred stock, par value $0.000001 per share; 10,000,000 shares authorized; zero shares issued and outstanding as of June 30, 2026, and December 31, 2025	0	0
Common stock, par value $0.000001 per share; 300,000,000 shares authorized; 6,781,976 shares issued and outstanding as of June 30, 2026, and December 31, 2025	0	0
Additional paid-in capital	842,958	840,937
Accumulated other comprehensive loss	(587)	(583)
Accumulated deficit	(734,991)	(726,488)
Total stockholders’ equity	107,380	113,866	$ 131,670
Total liabilities and stockholders’ equity	$ 197,712	$ 203,523

Accrued Liabilities And Other Liabilities, Current

No definition available.

Name:	til_AccruedLiabilitiesAndOtherLiabilitiesCurrent
Namespace Prefix:	til_
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).