Note 1 - Organization and Nature of Operations (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

Schedule of Consolidated Subsidiaries and VIEs [Table Text Block]

Name of the subsidiary or VIE	Place and date of incorporation	Percentage of ownership	Principal activities
China Net Online Media Group Limited (“China Net BVI”) (1)	British Virgin Islands, August 13, 2007	100%	Investment holding company
CNET Online Technology Limited (“China Net HK”) (1)	Hong Kong, September 4, 2007	100%	Investment holding company
ChinaNet Investment Holding Ltd. (“ChinaNet Investment BVI”) (1)	British Virgin Islands, January 12, 2015	100%	Investment holding company
Rise King Century Technology Development (Beijing) Co., Ltd. (“Rise King WFOE”) (1)	PRC, January 17, 2008	100%	Investment holding company
Business Opportunity Online (Beijing) Network Technology Co., Ltd. (“Business Opportunity Online”) (2)	PRC, December 8, 2004	100%	Providing online advertising, precision marketing and the related data services
Beijing CNET Online Advertising Co., Ltd. (“Beijing CNET” Online) (2)	PRC, January 27, 2003	100%	Providing TV advertising services
ChinaNet Online Holdings Co., Ltd. (“ChinaNet Online PRC”) (1)	PRC, August 31, 2015	100%	Investment holding company
Beijing Chuang Fu Tian Xia Network Technology Co., Ltd. (“Beijing Chuang Fu Tian Xia”) (2)	PRC, March 1, 2011	100%	Providing online advertising, precision marketing and the related data services
Business Opportunity Online (Hubei) Network Technology Co., Ltd. (“Business Opportunity Online Hubei”) (2)	PRC, January 28, 2011	100%	Providing online advertising, precision marketing and the related data services
Hubei CNET Advertising Media Co., Ltd. (“Hubei CNET”) (2)	PRC, April 18, 2011	100%	Providing TV advertising services
Sheng Tian Network Technology (Hubei) Co., Ltd. (“Sheng Tian Hubei”) (2)	PRC, July 1, 2011	100%	Providing online advertising, precision marketing and the related data services
Beijing Chuang Shi Xin Qi Advertising Media Co., Ltd. (“Beijing Chuang Shi Xin Qi”) (2)	PRC, April 16, 2014	100%	Providing online advertising, precision marketing and the related data services
Beijing Shi Ji Cheng Yuan Advertising Media Co., Ltd. (“Beijing Shi Ji Cheng Yuan”) (2)	PRC, May 22, 2014	100%	Providing online advertising, precision marketing and the related data services
Beijing Hong Da Shi Xing Network Technology Co., Ltd. (“Beijing Hong Da Shi Xing”) (2)	PRC, April 16, 2014	100%	Providing online advertising, precision marketing and the related data services
Business Opportunity Chain (Beijing) Technology Development Co., Ltd.   (“Business Opportunity Chain”) (1)	PRC, May 11, 2018	51%	Providing research and develop and other technical support services for the blockchain business unit