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4. Rights Offering and Formation of Black Ridge Acquisition Corp. (Details) - USD ($)
9 Months Ended
Oct. 10, 2017
Sep. 26, 2017
Mar. 31, 2019
Dec. 31, 2017
Offering costs netted against equity       $ 130,164
BRAC [Member]        
Equity ownership     22.00% 22.00%
Equity contribution $ 25,000      
Warrants issued to Related Parties [Member]        
Warrants issued fair value   $ 4,179    
Non-Related Parties [Member]        
Proceeds from sale of stock   $ 2,965,555    
Stock issued in rights offering   257,976,602    
Rights Offering and Backstop Agreement [Member]        
Proceeds from sale of stock   $ 5,181,839    
Stock issued in rights offering   431,819,910    
Rights Offering and Backstop Agreement [Member] | Officers And Directors [Member]        
Proceeds from sale of stock   $ 2,086,120    
Stock issued in rights offering   173,843,308    
Warrants issued   179,376    
Rights Offering [Member] | Current Shareholders [Member]        
Proceeds from sale of stock   $ 2,397,737    
Stock issued in rights offering   199,811,421    
Backstop Agreement [Member]        
Proceeds from sale of stock   $ 2,784,102    
Stock issued in rights offering   232,008,489    
Warrants issued   435,000    
Warrants issued fair value   $ 10,135