Condensed Consolidated Statements of Stockholders' Equity / (Deficit) - USD ($) shares in Thousands, $ in Thousands	Total	Preferred Stock [Member]	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Accumulated Deficit	Treasury Stock
Balance at Dec. 31, 2022	$ 36,239	$ 3	$ 14	$ 412,136		$ (375,914)
Balance (in shares) at Dec. 31, 2022		29,057	141,349
Shares issued under Standby Equity Purchase Agreements	1,869			1,869
Shares issued under Standby Equity Purchase Agreements (in shares)			462
Retainer shares issued	1		$ 1
Retainer shares issued (in shares)			4,000
Stock-based compensation	3,720			3,720
Net income (loss)	(30,753)					(30,753)
Balance at Mar. 31, 2023	11,076	$ 3	$ 15	417,725		(406,667)
Balance (in shares) at Mar. 31, 2023		29,057	145,811
Balance at Dec. 31, 2022	36,239	$ 3	$ 14	412,136		(375,914)
Balance (in shares) at Dec. 31, 2022		29,057	141,349
Repurchase of warrants	0
Other comprehensive income	0
Balance at Sep. 30, 2023	(162,669)		$ 15	396,762		(468,845)	$ (90,601)
Balance (in shares) at Sep. 30, 2023		29,057	154,185				60,069
Balance at Mar. 31, 2023	11,076	$ 3	$ 15	417,725		(406,667)
Balance (in shares) at Mar. 31, 2023		29,057	145,811
Shares issued under Standby Equity Purchase Agreements	13,925			13,925
Shares issued under Standby Equity Purchase Agreements (in shares)			2,084
Stock options exercised	222			222
Stock options exercised (in shares)			128
Conversion of Convertible Debentures into common stock, shares			632
Conversion of Convertible Debentures into common stock	7,735			7,735
Issuance of common stock upon warrants exercise, shares			45
Issuance of common stock upon warrants exercise	521			521
Stock-based compensation	3,587			3,587
Net income (loss)	(26,649)					(26,649)
Balance at Jun. 30, 2023	10,417	$ 3	$ 15	443,715		(433,316)
Balance (in shares) at Jun. 30, 2023		29,057	148,700
Shares issued under Standby Equity Purchase Agreements	11,214			11,214
Disbursement of funds to Sorrento Amount	(20,000)			(20,000)
Repurchase of Treasury Stock, Preferred Stock, and warrants	(143,786)	$ (3)		(53,182)			$ (90,601)
Repurchase of Treasury Stock, Preferred Stock, and warrants, (in shares)							(60,069)
Shares issued under Standby Equity Purchase Agreements (in shares)			4,797
Issuance of penny warrants	10,401			10,401
Issuance of common stock in connection with Settlement Agreement, (in shares)			475
Issuance of common stock in connection with Settlement Agreement	750			750
Stock options exercised	358			358
Stock options exercised (in shares)			213
Stock-based compensation	3,506			3,506
Other comprehensive income	0
Net income (loss)	(35,529)					(35,529)
Balance at Sep. 30, 2023	(162,669)		$ 15	396,762		(468,845)	$ (90,601)
Balance (in shares) at Sep. 30, 2023		29,057	154,185				60,069
Balance at Dec. 31, 2023	(172,938)		$ 16	407,813		(490,245)	$ (90,522)
Balance (in shares) at Dec. 31, 2023		29,057	160,084				60,069
Shares issued under Standby Equity Purchase Agreements and under ATM Sales Agreement, Share			189
Shares issued under Bought Deal Offering			5,882
Shares issued under Bought Deal Offering	3,769		$ 1	3,768		0
Shares issued under Standby Equity Purchase Agreements and under ATM Sales Agreement, Value	156			156
Stock options exercised	46			46
Stock options exercised (in shares)			35
Stock-based compensation	3,558			3,558
Net income (loss)	(24,377)					(24,377)
Balance at Mar. 31, 2024	(189,786)		$ 17	415,341		(514,622)	$ (90,522)
Balance (in shares) at Mar. 31, 2024		29,057	166,190				60,069
Balance at Dec. 31, 2023	(172,938)		$ 16	407,813		(490,245)	$ (90,522)
Balance (in shares) at Dec. 31, 2023		29,057	160,084				60,069
Repurchase of warrants	$ (300)
Stock options exercised (in shares)	154
Other comprehensive income	$ 5,011
Balance at Sep. 30, 2024	(211,317)		$ 19	430,767	$ 5,011	(556,592)	$ (90,522)
Balance (in shares) at Sep. 30, 2024		29,057	191,791				60,069
Balance at Mar. 31, 2024	(189,786)		$ 17	415,341		(514,622)	$ (90,522)
Balance (in shares) at Mar. 31, 2024		29,057	166,190				60,069
Shares issued under Registered Direct Offering, shares			15,000
Shares issued under Registered Direct Offering	5,919		$ 1	5,918
Placement Agent Warrants issued in connection with Registered Direct Offering and Representative Warrants issued in connection with Bought Deal Offering	956			956
Shares issued under ESPP, shares			167
Shares issued under ESPP	154			154
Stock options exercised	99			99
Stock options exercised (in shares)			67
Issuance of common stock upon warrants exercise, shares			50
Issuance of common stock upon warrants exercise	84			84
Stock-based compensation	3,613			3,613
Other comprehensive income	1,851				1,851
Net income (loss)	(37,582)					(37,582)
Balance at Jun. 30, 2024	(214,692)		$ 18	426,165	1,851	(552,204)	$ (90,522)
Balance (in shares) at Jun. 30, 2024		29,057	181,474				60,069
Retainer shares issued	1		$ 1
Retainer shares issued (in shares)			10,000
Fee Warrant issued in connection with the Commitment Letter	310			310
Repurchase of warrants	(298)			(298)
Common stock issuable under Sponsor Interest Purchase Agreement	345			345
Stock options exercised	82			82
Stock options exercised (in shares)			52
Issuance of common stock upon warrants exercise, shares			265
Issuance of common stock upon warrants exercise	450			450
Stock-based compensation	3,713			3,713
Other comprehensive income	3,160				3,160
Net income (loss)	(4,388)					(4,388)
Balance at Sep. 30, 2024	$ (211,317)		$ 19	$ 430,767	$ 5,011	$ (556,592)	$ (90,522)
Balance (in shares) at Sep. 30, 2024		29,057	191,791				60,069