Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Statutory Reserves [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2017	13,982,542
Balance at Dec. 31, 2017	$ 14	$ 31,554	$ 2,607	$ (20,487)	$ 1,598	$ 177	$ 15,463
Issuance of common stock for private placement, net (in shares)	2,150,001
Issuance of common stock for private placement, net	$ 2	7,986					7,988
Share-based payment in exchange for services from nonemployees (in shares)	250,000
Share-based payment in exchange for services from nonemployees		421					421
Share-based compensation related to awards provided to employees and directors (in shares)
Share-based compensation related to awards provided to employees and directors		152					152
Purchase noncontrolling interests in a Variable Interest Entity		(1,838)				(130)	(1,968)
Net loss for the year				(14,025)		(102)	(14,127)
Foreign currency translation adjustment					(141)	6	(135)
Balance (in shares) at Dec. 31, 2018	16,382,543
Balance at Dec. 31, 2018	$ 16	38,275	2,607	(34,512)	1,457	(49)	7,794
Issuance of common stock for private placement, net (in shares)	3,216,860
Issuance of common stock for private placement, net	$ 4	4,783					4,787
Share-based compensation related to awards provided to employees and directors (in shares)	30,000
Share-based compensation related to awards provided to employees and directors		53					53
Net loss for the year				(1,261)		(9)	(1,270)
Foreign currency translation adjustment					48	1	49
Balance (in shares) at Dec. 31, 2019	19,629,403
Balance at Dec. 31, 2019	$ 20	$ 43,111	$ 2,607	$ (35,773)	$ 1,505	$ (57)	$ 11,413