Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (1,211)	$ (8,473)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation	108	3,395
Realized gain on debt securities available for sale	(229)
Change in operating assets and liabilities:
Prepaid insurance and other assets	2	3,372
Accounts payable	17	1,541
Accrued legal and professional	(209)	(4,818)
Accrued expenses and other current liabilities and liabilities subject to compromise	(318)	(4,572)
Net cash used in operating activities	(1,840)	(9,555)
CASH FLOWS FROM INVESTING ACTIVITIES:
Maturities of short-term investments	10,000
Net cash provided by investing activities	10,000
CASH FLOWS FROM FINANCING ACTIVITIES:
Tax withholding payments related to net settled restricted stock compensation		(106)
Net cash used in financing activities		(106)
Cash and cash equivalents, and restricted cash:
Net change during the period	8,160	(9,661)
Balance, beginning of period	23,095	87,096
Balance, end of period	31,255	77,435
Supplemental cash flow information:
Cash paid for interest, net of amounts capitalized
Cash paid for income taxes
Cash paid for reorganization items		$ 5,600