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Organization, Principal Activities and Management's Plans - Schedule of Subsidiaries and Variable Interest Entity (Details)
6 Months Ended 12 Months Ended
Jun. 30, 2018
Dec. 31, 2017
Dec. 31, 2016
China Information Technology Inc [Member]      
Entities China Information Technology, Inc (CNIT)    
Location British Virgin Islands    
China Information Technology Holdings Limited [Member]      
Entities China Information Technology Holdings Limited (CITH)    
Subsidiaries/VIE Subsidiary    
Percentage owned 100.00% 100.00% 100.00%
Location British Virgin Islands    
Information Security Tech International Co Ltd [Member]      
Entities Information Security Tech. International Co., Ltd. (ISTIL)    
Subsidiaries/VIE Subsidiary    
Percentage owned 100.00% 100.00% 100.00%
Location Hong Kong, China    
Information Security Tech (China) Co Ltd [Member]      
Entities Information Security Tech. (China) Co., Ltd. (IST)    
Subsidiaries/VIE Subsidiary    
Percentage owned 100.00% 100.00% 100.00%
Location Shenzhen, China    
TopCloud Software (China) Co Ltd [Member]      
Entities TopCloud Software (China) Co., Ltd. (TopCloud)    
Subsidiaries/VIE Subsidiary    
Percentage owned 100.00% 100.00% 100.00%
Location Shenzhen, China    
Information Security IoT Tech Co Ltd [Member]      
Entities Information Security IoT Tech. Co., Ltd. (ISIOT)    
Subsidiaries/VIE Subsidiary    
Percentage owned 100.00% 100.00% 100.00%
Location Shenzhen, China    
iASPEC Technology Group Co Ltd [Member]      
Entities iASPEC Technology Group Co., Ltd. (iASPEC)    
Subsidiaries/VIE VIE    
Percentage owned 100.00% 100.00% 100.00%
Location Shenzhen, China    
Biznest Internet Tech Co Ltd [Member]      
Entities Biznest Internet Tech. Co., Ltd. (Biznest)    
Subsidiaries/VIE VIE    
Percentage owned 100.00% 100.00% 100.00%
Location Shenzhen, China    
Shenzhen Taoping Internet Tech Co Ltd [Member]      
Entities Shenzhen Taoping Internet Tech. Co., Ltd. (Taoping)    
Subsidiaries/VIE VIE    
Percentage owned 100.00% 100.00% 100.00%
Location Shenzhen, China    
iASPEC Bocom IoT Tech Co Ltd [Member]      
Entities iASPEC Bocom IoT Tech. Co., Ltd. (Bocom)    
Subsidiaries/VIE VIE    
Percentage owned 100.00% 100.00% 100.00%
Location Shenzhen, China