Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Common Stock [Member] Series J Convertible Preferred Stock [Member]	Additional Paid in Capital [Member]	Additional Paid in Capital [Member] Series J Convertible Preferred Stock [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Other Comprehensive Income [Member] Series J Convertible Preferred Stock [Member]	Accumulated Deficit [Member]	Accumulated Deficit [Member] Series J Convertible Preferred Stock [Member]	Total	Series J Convertible Preferred Stock [Member]
Balance at Dec. 31, 2022	$ 0		$ 279,736		$ 38		$ (267,417)		$ 12,357
Balance (in shares) at Dec. 31, 2022	15,326
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ 0		0		0		(6,485)		(6,485)
Unrealized foreign currency translation adjustment	0		0		(7)		0		(7)
Unrealized gain on marketable securities	0		0		6		0		6
Stock-based compensation, net	$ 0		181		0		0		181
Stock-based compensation, net (in shares)	0
Issuance costs	$ 0		(11)		0		0		(11)
Conversion of preferred stock into common stock	$ 0		0		0		0		0
Conversion of preferred stock into common stock (in shares)	300
Conversion of warrants into common stock	$ 0		0		0		0		0
Conversion of warrants into common stock (in shares)	18,858
Reclassification of warrants to equity	$ 0		7,623		0		0		7,623
Balance at Mar. 31, 2023	$ 0		287,529		37		(273,902)		13,664
Balance (in shares) at Mar. 31, 2023	34,484
Balance at Dec. 31, 2022	$ 0		279,736		38		(267,417)		12,357
Balance (in shares) at Dec. 31, 2022	15,326
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss									(14,700)
Balance at Sep. 30, 2023	$ 0		289,980		(24)		(282,117)		7,839
Balance (in shares) at Sep. 30, 2023	53,265
Balance at Dec. 31, 2022	$ 0		279,736		38		(267,417)		12,357
Balance (in shares) at Dec. 31, 2022	15,326
Balance at Dec. 31, 2023	$ 0		290,647		(31)		(287,626)		2,990
Balance (in shares) at Dec. 31, 2023	162,356
Balance at Mar. 31, 2023	$ 0		287,529		37		(273,902)		13,664
Balance (in shares) at Mar. 31, 2023	34,484
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ 0		0		0		(4,845)		(4,845)
Unrealized gain on marketable securities	0		0		(61)		0		(61)
Stock-based compensation, net	$ 0		197		0		0		197
Stock-based compensation, net (in shares)	0
Issuance of common stock, net	$ 0		2,217		0		0		2,217
Issuance of common stock, net (in shares)	18,781
Issuance costs	$ 0		(98)		0		0		(98)
Balance at Jun. 30, 2023	$ 0		289,845		(24)		(278,747)		11,074
Balance (in shares) at Jun. 30, 2023	53,265
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ 0		0		0		(3,370)		(3,370)
Stock-based compensation, net	$ 0		135		0		0		135
Stock-based compensation, net (in shares)	0
Balance at Sep. 30, 2023	$ 0		289,980		(24)		(282,117)		7,839
Balance (in shares) at Sep. 30, 2023	53,265
Balance at Dec. 31, 2023	$ 0		290,647		(31)		(287,626)		2,990
Balance (in shares) at Dec. 31, 2023	162,356
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ 0		0		0		(4,330)		(4,330)
Unrealized foreign currency translation adjustment	0		0		(9)		0		(9)
Stock-based compensation, net	$ 0		158		0		0		158
Stock-based compensation, net (in shares)	0
Conversion of preferred stock into common stock		$ 0		$ 1,535		$ 0		$ 0		$ 1,535
Conversion of preferred stock into common stock (in shares)		31,971
Series J convertible preferred stock deemed dividend	$ 0		541		0		0		541
Balance at Mar. 31, 2024	$ 0		292,881		(40)		(291,956)		885
Balance (in shares) at Mar. 31, 2024	194,327
Balance at Dec. 31, 2023	$ 0		290,647		(31)		(287,626)		2,990
Balance (in shares) at Dec. 31, 2023	162,356
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss									(9,697)
Balance at Sep. 30, 2024	$ 0		300,546		(46)		(297,323)		3,177
Balance (in shares) at Sep. 30, 2024	1,866,890
Balance at Mar. 31, 2024	$ 0		292,881		(40)		(291,956)		885
Balance (in shares) at Mar. 31, 2024	194,327
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ 0		0		0		(7,725)		(7,725)
Unrealized foreign currency translation adjustment	0		0		(2)		0		(2)
Stock-based compensation, net	$ 0		115		0		0		115
Stock-based compensation, net (in shares)	0
Issuance of common stock, net	$ 0		(109)		0		0		(109)
Issuance of common stock, net (in shares)	321,417
Balance at Jun. 30, 2024	$ 0		292,887		(42)		(299,681)		(6,836)
Balance (in shares) at Jun. 30, 2024	515,744
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ 0		0		0		2,358		2,358
Unrealized foreign currency translation adjustment	0		0		(4)		0		(4)
Stock-based compensation, net	$ 0		101		0		0		101
Stock-based compensation, net (in shares)	0
Issuance of common stock, net	$ 0		2,882		0		0		2,882
Issuance of common stock, net (in shares)	952,658
Exercise of common stock warrants	$ 0		1,182		0		0		1,182
Exercise of common stock warrants (in shares)	398,488
Issuance costs	$ 0		(722)		0		0		(722)
Deemed dividend	0		(1)		0		0		(1)
Reclassification of warrants to equity	0		4,217		0		0		4,217
Balance at Sep. 30, 2024	$ 0		$ 300,546		$ (46)		$ (297,323)		$ 3,177
Balance (in shares) at Sep. 30, 2024	1,866,890