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Annual report pursuant to Section 13 and 15(d)

Convertible Notes and Convertible Notes - Related Party (Details)

v3.10.0.1
Convertible Notes and Convertible Notes - Related Party (Details) - USD ($)
12 Months Ended
Dec. 02, 2017
Apr. 07, 2017
Apr. 30, 2018
Apr. 30, 2017
Aug. 14, 2012
Feb. 29, 2012
Debt Instrument [Line Items]            
Proceeds from equity raise     $ 23,023,000 $ 7,500,000    
2 Year Promissory Notes [Member]            
Debt Instrument [Line Items]            
Interest rate           0.19%
Debt conversion, price per share           $ 12.00
Convertible note payable Dated February 29, 2012 [Member]            
Debt Instrument [Line Items]            
Face value of loan           $ 50,000
Convertible note payable - Related Party Dated December 1, 2017 [Member] | CEO [Member]            
Debt Instrument [Line Items]            
Interest rate         5.00%  
Debt conversion, price per share         $ 4.20  
Face value of loan         $ 300,000  
Proceeds from equity raise   $ 7,500,000        
Convertible Debt [Member] | USU [Member]            
Debt Instrument [Line Items]            
Interest rate 8.00%          
Debt conversion, price per share $ 2.00          
Face value of loan $ 2,000,000          
Debt maturity period 2 years          
Conversion of note into common share $ 1,000,000