Note 1 - Organization and Nature of Operations (Tables)

12 Months Ended

Dec. 31, 2020

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 Co. Limited (“China Net HK”) (1)	Hong Kong, PRC 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
Grandon Investments Limited (“Grandon BVI”) (1)	British Virgin Islands February 13, 2006	100%	Investment holding company, providing technical services
Winner Glory Limited (“Winner Glory HK”) (1)	Hong Kong, PRC August 12, 2020	100%	Investment holding company, providing technical services
Rise King Century Technology Development (Beijing) Co., Ltd. (“Rise King WFOE”) (1)	PRC January 17, 2008	100%	Investment holding company, providing technical services
ChinaNet Online Holdings Co., Ltd. (“ChinaNet Online PRC”) (1)	PRC August 31, 2015	100%	Investment holding company
Business Opportunity Chain (Beijing) Technology Development Co., Ltd.   (“Business Opportunity Chain Beijing”) (1)	PRC May 11, 2018	51%	Providing research and develop and other technical support services for the blockchain business unit
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 advertising, marketing and related value-added services
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
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) (3)	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
ChinaNet Online (Guangdong) Technology Co., Ltd. (“ChinaNet Online Guangdong”) (2)	PRC May 26, 2020	100%	Developing and operating blockchain technology-based products and services, and other related value-added services.
Qiweilian (Guangzhou) Technology Co., Ltd. (“Qiweilian Guangzhou”) (2) (4)	PRC October 23, 2020	51%	Providing digital business promotion services.