Condensed Consolidated Statements of Equity (Unaudited) - USD ($)	Common Stock [Member] At The Market Offering Agreement [Member]	Common Stock [Member]	Additional Paid-in Capital [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Additional Paid-in Capital [Member] Related Party Convertible Debt Price Reset [Member]	Additional Paid-in Capital [Member] At The Market Offering Agreement [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]		Noncontrolling Interest [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Related Party Convertible Debt Price Reset [Member]	At The Market Offering Agreement [Member]	Total
Balance (in shares) at Dec. 31, 2021		279,629
Balance (Accounting Standards Update 2020-06 [Member]) at Dec. 31, 2021			$ (10,681,000)				$ 9,739,000					$ (942,000)
Balance at Dec. 31, 2021						$ 268,459,000		$ (264,662,000)	$ 31,000	[1]	$ (431,000)				$ 3,397,000
Stock-based compensation expense						42,000									42,000
Related party convertible note price reset				$ 213,000									$ 213,000
Sale of common stock and warrants, net (in shares)	20,407
Sale of common stock and warrants, net					$ 594,000									$ 594,000
Foreign currency translation gain									14,000	[1]					14,000
Net loss								(1,910,000)			(126,000)				(2,036,000)
Balance (in shares) at Mar. 31, 2022		300,036
Balance at Mar. 31, 2022						258,627,000		(256,833,000)	45,000	[1]	(557,000)				1,282,000
Balance (in shares) at Dec. 31, 2021		279,629
Balance (Accounting Standards Update 2020-06 [Member]) at Dec. 31, 2021			$ (10,681,000)				$ 9,739,000					$ (942,000)
Balance at Dec. 31, 2021						268,459,000		(264,662,000)	31,000	[1]	(431,000)				3,397,000
Foreign currency translation gain															67,000
Balance (in shares) at Sep. 30, 2022		710,967
Balance at Sep. 30, 2022		$ 1,000				267,761,000		(262,761,000)	98,000	[1]	(833,000)				4,266,000
Balance (in shares) at Mar. 31, 2022		300,036
Balance at Mar. 31, 2022						258,627,000		(256,833,000)	45,000	[1]	(557,000)				1,282,000
Stock-based compensation expense						72,000									72,000
Related party convertible note price reset				2,475,000									2,475,000
Conversion of note payable to common stock (in shares)		234,495
Conversion of note payable to common stock		$ 1,000				2,999,000									3,000,000
Sale of common stock and warrants, net (in shares)	97,726
Sale of common stock and warrants, net					1,450,000									1,450,000
Foreign currency translation gain									31,000	[1]					31,000
Net loss								(2,688,000)			(113,000)				(2,801,000)
Conversion of related party note payable to common stock (in shares)		234,495
Conversion of related party note payable to common stock		$ 1,000				2,999,000									3,000,000
Balance (in shares) at Jun. 30, 2022		632,257
Balance at Jun. 30, 2022		$ 1,000				265,623,000		(259,521,000)	76,000	[1]	(670,000)				5,509,000
Stock-based compensation expense						70,000									70,000
Related party convertible note price reset				1,075,000									1,075,000
Sale of common stock and warrants, net (in shares)	78,710
Sale of common stock and warrants, net					$ 993,000									$ 993,000
Foreign currency translation gain									22,000	[1]					22,000
Net loss								(3,240,000)			(163,000)				(3,403,000)
Balance (in shares) at Sep. 30, 2022		710,967
Balance at Sep. 30, 2022		$ 1,000				267,761,000		(262,761,000)	98,000	[1]	(833,000)				4,266,000
Balance (in shares) at Dec. 31, 2022		1,037,138
Balance at Dec. 31, 2022		$ 1,000				270,377,000		(266,193,000)	111,000		(973,000)				3,323,000
Stock-based compensation expense						10,000									10,000
Related party convertible note price reset				3,160,000		43,000							3,160,000		43,000
Conversion of note payable to common stock (in shares)		215,000
Conversion of note payable to common stock		$ 1,000				602,000									603,000
Sale of common stock and warrants, net (in shares)		125,000
Sale of common stock and warrants, net						2,640,000									2,640,000
Exercise of warrants (in shares)		158,731
Exercise of warrants						421,000									421,000
Foreign currency translation gain									(6,000)						(6,000)
Net loss								(5,086,000)			(96,000)				(5,182,000)
Conversion of related party note payable to common stock (in shares)		215,000
Conversion of related party note payable to common stock		$ 1,000				602,000									603,000
Balance (in shares) at Mar. 31, 2023		1,535,869
Balance at Mar. 31, 2023		$ 2,000				277,253,000		(271,279,000)	105,000		(1,069,000)				5,012,000
Balance (in shares) at Dec. 31, 2022		1,037,138
Balance at Dec. 31, 2022		$ 1,000				270,377,000		(266,193,000)	111,000		(973,000)				3,323,000
Related party convertible note price reset													6,820,000
Sale of common stock and warrants, net (in shares)														196,843
Foreign currency translation gain															3,000
Balance (in shares) at Sep. 30, 2023		3,136,504
Balance at Sep. 30, 2023		$ 3,000				281,632,000		(277,154,000)	114,000		(1,332,000)				3,263,000
Balance (in shares) at Mar. 31, 2023		1,535,869
Balance at Mar. 31, 2023		$ 2,000				277,253,000		(271,279,000)	105,000		(1,069,000)				5,012,000
Stock-based compensation expense						13,000									13,000
Exercise of warrants (in shares)		946,429
Net loss								(2,260,000)			(138,000)				(2,398,000)
Balance (in shares) at Jun. 30, 2023		2,482,298
Balance at Jun. 30, 2023		$ 2,000				277,266,000		(273,539,000)	105,000		(1,207,000)				2,627,000
Stock-based compensation expense						7,000									7,000
Related party convertible note price reset				$ 3,660,000									$ 3,660,000
Conversion of note payable to common stock (in shares)		654,206
Conversion of note payable to common stock		$ 1,000				699,000									700,000
Foreign currency translation gain									9,000						9,000
Net loss								(3,615,000)			(125,000)				(3,740,000)
Conversion of related party note payable to common stock (in shares)		654,206
Conversion of related party note payable to common stock		$ 1,000				699,000									700,000
Balance (in shares) at Sep. 30, 2023		3,136,504
Balance at Sep. 30, 2023		$ 3,000				$ 281,632,000		$ (277,154,000)	$ 114,000		$ (1,332,000)				$ 3,263,000

[1] Accumulated other comprehensive loss.