Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents		$ 30,793	$ 127,965
Accounts receivable due from SPN - related party		2,068	0
Prepaid expenses and other current assets	[1]	5,813	8,049
Current assets of discontinued operations		0	39,396
Total current assets		38,674	175,410
Property and equipment, net		11,534	17,614
Operating lease assets		80,903	90,417
Restricted cash		8,668	8,185
Restricted investments		0	1,401
Other non-current assets		31	2,187
Non-current assets of discontinued operations	[2]	0	63,386
Total assets		139,810	358,600
Current liabilities:
Accounts payable		4,079	3,641
Accrued expenses and other current liabilities		10,719	22,509
Accrued liabilities due to SPN - related party		17,750	0
Operating lease liabilities		8,674	5,587
Current liabilities of discontinued operations	[3]	0	66,922
Total current liabilities		41,222	98,659
Long term portion of note payable, net of discount		0	101,544
Operating lease liabilities, net of current portion		82,966	91,652
Warrant liabilities		0	546
Other long-term liabilities		1,838	1,628
Non-current liabilities of discontinued operations		0	109,427
Total liabilities		126,026	403,456
Commitments and contingencies (Note 14)
Stockholders (deficit) equity:
Preferred stock, $0.001 par value; 10,000,000 shares authorized at December 31, 2024 and 2023; no shares issued and outstanding at December 31, 2024 and 2023		0	0
Common stock, $0.001 par value; 360,000,000 and 240,000,000 shares authorized at December 31, 2024 and 2023, respectively; 173,008,198 and 135,041,467 shares issued and outstanding at December 31, 2023 and 2022, respectively		173	135
Additional paid-in capital		991,710	933,244
Accumulated deficit		(978,099)	(978,235)
Total stockholders' equity (deficit)		13,784	(44,856)
Total liabilities and stockholders' equity		$ 139,810	$ 358,600

[1] Includes $2,683 as of December 31, 2024 of unbilled receivable from SPN (related party) related to certain costs of the transition services performed by the Company. See Note 3, Discontinued Operations and TSA, for further details.

[2] Includes $38,877 as of December 31, 2023 of milestones related to the construction of the Company's dedicated manufacturing suite at BacThera AG, or Bacthera.

[3] Includes related party amounts of $35,783 at December 31, 2023.