CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT) - USD ($) $ in Thousands		Common Stock		Additional Paid-In Capital		Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Total
Beginning balance at Dec. 31, 2022		$ 4	[1]	$ 429,698	[1]	$ (66)	$ (444,768)	$ (15,132)
Beginning balance (shares) at Dec. 31, 2022	[1]	3,756,711
Stock-based compensation	[1]			4,094
Issuance of warrants	[1]			2,316
Other comprehensive income/(loss)						67
Net Income (Loss)							(23)
Ending balance at Jun. 30, 2023		$ 4	[1]	436,108	[1]	1	(444,791)	(8,678)
Ending balance (shares) at Jun. 30, 2023	[1]	3,756,711
Beginning balance at Mar. 31, 2023		$ 4	[1]	432,008	[1]	1	(433,923)	(1,910)
Beginning balance (shares) at Mar. 31, 2023	[1]	3,756,711
Stock-based compensation	[1]			1,784
Issuance of warrants	[1]			2,316
Net Income (Loss)							(10,868)
Ending balance at Jun. 30, 2023		$ 4	[1]	436,108	[1]	1	(444,791)	(8,678)
Ending balance (shares) at Jun. 30, 2023	[1]	3,756,711
Beginning balance at Dec. 31, 2023		$ 5	[1]	457,099	[1]		(452,892)	$ 4,212
Beginning balance (shares) at Dec. 31, 2023		5,374,268	[1]					5,374,268
Issuance of common stock and prefunded warrants pursuant to private placement, net of issuance costs	[1]	$ 2		8,614
Issuance of common stock and prefunded warrants pursuant to private placement, net of issuance costs (in shares)	[1]	1,209,612
Stock-based compensation	[1]			1,808
Net Income (Loss)							(7,525)
Ending balance at Jun. 30, 2024		$ 7	[1]	467,521	[1]		(460,417)	$ 7,111
Ending balance (shares) at Jun. 30, 2024		6,583,880	[1]					6,583,880
Beginning balance at Mar. 31, 2024		$ 5	[1]	458,185	[1]		(452,320)	$ 5,870
Beginning balance (shares) at Mar. 31, 2024	[1]	5,374,268
Issuance of common stock and prefunded warrants pursuant to private placement, net of issuance costs	[1]	$ 2		8,614
Issuance of common stock and prefunded warrants pursuant to private placement, net of issuance costs (in shares)	[1]	1,209,612
Stock-based compensation	[1]			722
Other comprehensive income/(loss)						$ 0
Net Income (Loss)							(8,097)
Ending balance at Jun. 30, 2024		$ 7	[1]	$ 467,521	[1]		$ (460,417)	$ 7,111
Ending balance (shares) at Jun. 30, 2024		6,583,880	[1]					6,583,880

[1] Prior period amounts have been retrospectively adjusted for the 1-for-15 reverse stock split that was effective August 11, 2023 (see Note 1).