Note 10 - Intangible Assets, Net - Intangible Assets, Net (Details) - USD ($) $ in Thousands		Sep. 30, 2020	Dec. 31, 2019
Finite-lived intangible assets		$ 16,242	$ 15,898
Finite-lived intangible assets, Accumulated amortization		(7,277)	(6,505)
Finite-lived intangible assets, Impairment		(7,677)	(7,494)
Intangible assets, net *	[1]	1,288	1,899
Customer Relationships [Member]
Finite-lived intangible assets		1,956	1,909
Finite-lived intangible assets, Accumulated amortization		(1,956)	(1,909)
Finite-lived intangible assets, Impairment
Intangible assets, net *
Noncompete Agreements [Member]
Finite-lived intangible assets		1,076	1,051
Finite-lived intangible assets, Accumulated amortization		(584)	(571)
Finite-lived intangible assets, Impairment		(492)	(480)
Intangible assets, net *
Software Technologies [Member]
Finite-lived intangible assets		301	294
Finite-lived intangible assets, Accumulated amortization		(301)	(294)
Finite-lived intangible assets, Impairment
Intangible assets, net *
Intelligent Marketing Data Service Platform [Member]
Finite-lived intangible assets		4,741	4,629
Finite-lived intangible assets, Accumulated amortization		(1,920)	(1,876)
Finite-lived intangible assets, Impairment		(2,821)	(2,753)
Intangible assets, net *
Internet Safety, Information Exchange Security and Data Encryption Software [Member]
Finite-lived intangible assets		1,909	1,863
Finite-lived intangible assets, Accumulated amortization		(430)	(419)
Finite-lived intangible assets, Impairment		(1,479)	(1,444)
Intangible assets, net *
Computer Software, Cloud Video Management System [Member]
Finite-lived intangible assets		1,395	1,362
Finite-lived intangible assets, Accumulated amortization		(346)	(338)
Finite-lived intangible assets, Impairment		(1,049)	(1,024)
Intangible assets, net *
Cloud-Computing Based Software Platforms [Member]
Finite-lived intangible assets		1,363	1,331
Finite-lived intangible assets, Accumulated amortization		(932)	(898)
Finite-lived intangible assets, Impairment		(418)	(408)
Intangible assets, net *		13	25
Licensing Agreements [Member]
Finite-lived intangible assets		1,208	1,202
Finite-lived intangible assets, Accumulated amortization		(105)	(15)
Finite-lived intangible assets, Impairment
Intangible assets, net *		1,103	1,187
Other Computer Software [Member]
Finite-lived intangible assets		875	872
Finite-lived intangible assets, Accumulated amortization		(703)	(185)
Finite-lived intangible assets, Impairment
Intangible assets, net *		172	687
Domain Name [Member]
Domain name		1,418	1,385
Domain name, Impairment		$ (1,418)	$ (1,385)

[1] All of the VIEs' assets can be used to settle obligations of their primary beneficiary. Furthermore, liabilities recognized as a result of consolidating these VIEs do not represent additional claims on the Company's general assets (Note 2).