Condensed Consolidated Statements of Changes in Stockholders' (Deficit) Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance at Dec. 31, 2023	$ 2,000	$ 882,749,000	$ (841,791,000)		$ 40,960,000
Balance, shares at Dec. 31, 2023	19,378,192
Issuance of common stock to Yorkville for debt extension and SEPA commitment fee		317,000			317,000
Issuance of common stock to Yorkville for debt extension and SEPA commitment fee, shares	116,964
Issuance and modification of warrants to C. V. Starr		3,322,000			3,322,000
Issuance of common stock and warrants in PIPE Offering, net of offering expenses		6,000,000			6,000,000
Issuance of common stock and warrants in PIPE Offering, net of offering expenses, shares	2,141,098
Vesting of restricted stock units
Vesting of restricted stock units, shares	233,361
Tax withholding on vesting of restricted stock units		(357,000)			(357,000)
Tax withholding on vesting of restricted stock units, shares	(80,672)
Issuance of common stock to Palantir as consideration for settlement agreement		50,000			50,000
Issuance of common stock to Palantir as consideration for settlement agreement, shares	20,000
Retirement of shares in connection with reverse stock split
Retirement of shares in connection with reverse stock split, shares	(191)
Stock-based compensation expense		2,966,000			2,966,000
Net loss			(22,013,000)		(22,013,000)
Balance at Mar. 31, 2024	$ 2,000	895,047,000	(863,804,000)		31,245,000
Balance, shares at Mar. 31, 2024	21,808,752
Balance at Dec. 31, 2024	$ 2,000	908,523,000	(899,683,000)	(5,000)	8,837,000
Balance, shares at Dec. 31, 2024	22,546,671
Issuance and modification of warrants to C. V. Starr		207,000			207,000
Vesting of restricted stock units
Vesting of restricted stock units, shares	87,419
Tax withholding on vesting of restricted stock units		(98,000)			(98,000)
Stock-based compensation expense		2,637,000			2,637,000
Net loss			(19,754,000)		(19,754,000)
Issuance of common stock to Dragasac in connection with warrant repricing		2,460,000			2,460,000
Issuance of common stock to Dragasac in connection with warrant repricing, shares	1,188,255
Dragasac warrant inducement		64,000	(64,000)
Issuance of common stock consideration shares to Yorkville in connection with Side Letter		149,000			149,000
Issuance of common stock consideration shares to Yorkville in connection with Side Letter, shares	100,000
Issuance of common stock in connection with settlement of debt		51,000			51,000
Issuance of common stock in connection with settlement of debt, shares	21,739
Changes in fair value of debt				5,000	5,000
Balance at Mar. 31, 2025	$ 2,000	$ 913,993,000	$ (919,501,000)		$ (5,506,000)
Balance, shares at Mar. 31, 2025	23,944,084