Consolidated Statements of Changes in Equity - USD ($) $ in Thousands		Common Stock [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	[1]	Common Stock [Member]		Additional Paid-in Capital [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Additional Paid-in Capital [Member]	[1]	Statutory Reserves [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Statutory Reserves [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2022	[1]			1,918,705
Balance (Accounting Standards Update 2016-13 [Member]) at Dec. 31, 2022		$ 0				$ (191)			$ 0		$ 0		$ (191)
Balance at Dec. 31, 2022				$ 2	[1]		$ 62,022			$ 2,598		$ (53,525)		$ 1,200	$ 0	$ 12,297
Share-based compensation in exchange for services from employees and directors (in shares)	[1]			7,500
Share-based compensation in exchange for services from employees and directors				$ 0	[1]		50			0		0		0	0	50
Net loss				0	[1]		0			0		(5,974)		0	0	(5,974)
Foreign currency translation adjustment				$ 0	[1]		0			0		0		72	0	72
Balance (in shares) at Dec. 31, 2023	[1]			1,926,205
Balance at Dec. 31, 2023				$ 2	[1]		62,072			2,598		(59,690)		1,272	0	6,254
Share-based compensation in exchange for services from employees and directors (in shares)	[1]			375,000
Share-based compensation in exchange for services from employees and directors				$ 0	[1]		1,030			0		0		0	0	1,030
Net loss				0	[1]		0			0		(3,761)		0	(8)	(3,769)
Foreign currency translation adjustment				$ 0	[1]		0			0		0		135	(2)	133
Noncontrolling interest in a acquired VIE															5	5
Disposal of noncontrolling interests in VIEs															(5)	(5)
Capital contribution from noncontrolling interests															70	70
Balance (in shares) at Dec. 31, 2024	[1]			2,301,205
Balance at Dec. 31, 2024				$ 2	[1]		$ 63,102			$ 2,598		$ (63,451)		$ 1,407	$ 60	$ 3,718

[1] ** Retrospectively restated for effect of the 1-for-5 and 1-for-4 reverse stock split effective on January 18, 2023 and September 30, 2024, respectively. See Note 4(l).