Quarterly report pursuant to Section 13 or 15(d)

Acquisition and Disposition (Details Narrative)

v3.10.0.1
Acquisition and Disposition (Details Narrative) - USD ($)
3 Months Ended 12 Months Ended
Oct. 13, 2017
May 23, 2017
Jul. 31, 2018
Jul. 31, 2017
Apr. 30, 2018
Common stock, par value     $ 0.001   $ 0.001
Preferred stock, par value     $ 0.001   $ 0.001
Impairment expense     $ 6,094,760 $ 6,094,760
Net proceeds from sales of common stock       $ 500,004  
Gain on extinguishment of liabilities         248,684
Gain from sale of discontinued operations         94,485
Gold King [Member]          
Common stock shares outstanding     1,204,667    
Acquisition consideration fair value per share     $ 4.70    
Quoted trading price on the date of the merger     $ 5,661,935    
Goodwill     6,094,760    
Dataram Memory [Member]          
Purchase price $ 900,000        
Net proceeds from sales of common stock         326,404
Financing Agreement [Member] | Rosenthal & Rosenthal, Inc [Member]          
Revolving line of credit maximum borrowing capacity     $ 3,500,000    
Financing Agreement [Member] | Rosenthal & Rosenthal, Inc [Member] | Prime Rate [Member]          
Line of credit interest rate, percentage     3.25%    
Financing Agreement [Member] | Rosenthal & Rosenthal, Inc [Member] | Effective Rate [Member]          
Line of credit interest rate, percentage     3.00%    
Financing Agreement [Member] | Dataram Memory [Member] | Rosenthal & Rosenthal, Inc [Member]          
Liabilities related to agreement         $ 0
Series C Preferred Stock [Member]          
Conversion of stock shares converted       36,820  
Number of shares issued for conversion       3,682,000  
Series C Preferred Stock [Member] | Escrow Agreement [Member]          
Number of shares held for escrow   4,500.01      
Gold King [Member]          
Number of common shares issued for acquisition   2,446,433      
Common stock, par value   $ 0.001      
Gold King [Member] | Series C Preferred Stock [Member]          
Number of common shares issued for acquisition   4,523,589      
Number of common stock options issued in connection with acquisition   231,458      
Gold King [Member] | Series C Preferred Stock [Member] | Maximum [Member]          
Number of warrants issued to purchase common stock   452,359      
Copper King [Member] | Series C Convertible Preferred Stock [Member]          
Preferred stock, shares designated   45,000.18      
Preferred stock, par value   $ 0.001      
Copper King [Member] | Series C Preferred Stock [Member]          
Conversion of stock shares converted   45,500.18      
Number of shares issued for conversion   45,500.18