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Note 10 - Intangible Assets, Net - Intangible Assets, Net (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Finite-lived intangible assets, Impairment $ (6,379) $ (4,627)
Finite-lived intangible assets 14,693 14,878
Finite-lived intangible assets, Accumulated amortization (6,686) (6,443)
Intangible assets, net 1,628 3,808
Customer Relationships [Member]    
Finite-lived intangible assets, Impairment
Finite-lived intangible assets 2,013 2,038
Finite-lived intangible assets, Accumulated amortization (2,013) (2,038)
Intangible assets, net
Noncompete Agreements [Member]    
Finite-lived intangible assets, Impairment (506) (512)
Finite-lived intangible assets 1,108 1,122
Finite-lived intangible assets, Accumulated amortization (602) (610)
Intangible assets, net
Software Technologies [Member]    
Finite-lived intangible assets, Impairment
Finite-lived intangible assets 310 314
Finite-lived intangible assets, Accumulated amortization (310) (314)
Intangible assets, net
Cloud-Computing Based Software Platforms [Member]    
Finite-lived intangible assets, Impairment (430) (435)
Finite-lived intangible assets 1,403 1,420
Finite-lived intangible assets, Accumulated amortization (921) (923)
Intangible assets, net 52 62
Intelligent Marketing Data Service Platform [Member]    
Finite-lived intangible assets, Impairment (2,903) (1,600)
Finite-lived intangible assets 4,880 4,942
Finite-lived intangible assets, Accumulated amortization (1,977) (1,853)
Intangible assets, net 1,489
Internet Safety, Information Exchange Security and Data Encryption Software [Member]    
Finite-lived intangible assets, Impairment
Finite-lived intangible assets 1,965 1,990
Finite-lived intangible assets, Accumulated amortization (393) (299)
Intangible assets, net 1,572 1,691
Computer Software, Cloud Video Management System [Member]    
Finite-lived intangible assets, Impairment (1,080) (602)
Finite-lived intangible assets 1,436 1,454
Finite-lived intangible assets, Accumulated amortization (356) (291)
Intangible assets, net 561
Other Computer Software [Member]    
Finite-lived intangible assets, Impairment
Finite-lived intangible assets 118 120
Finite-lived intangible assets, Accumulated amortization (114) (115)
Intangible assets, net 4 5
Domain Name [Member]    
Domain name 1,460 1,478
Finite-lived intangible assets, Impairment $ (1,460) $ (1,478)