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Quarterly report pursuant to Section 13 or 15(d)

Senior Secured Term Loan (Details)

v3.8.0.1
Senior Secured Term Loan (Details) - USD ($)
1 Months Ended 6 Months Ended 9 Months Ended
Jul. 25, 2017
Jan. 31, 2018
Jan. 31, 2018
Jan. 31, 2017
Debt Instrument [Line Items]        
Proceeds from term loan     $ 7,500,000
Fair value of warrants issued as part of senior secured loan     $ 478,428
Warrant [Member]        
Debt Instrument [Line Items]        
Warrants granted     224,174  
Secured Debt [Member] | Runway Growth Credit Fund [Member]        
Debt Instrument [Line Items]        
Debt instrument face amount $ 10,000,000      
LIBOR interest rate 10.00%      
Proceeds from term loan $ 5,000,000 $ 2,500,000    
Debt term 4 years      
Origination fee Company paid a 0.25% origination fee and will pay another 0.25% origination fee upon the second closing, will be subject to a final payment fee of 3.25% of the principal lent      
Secured Debt [Member] | Runway Growth Credit Fund [Member] | Warrant [Member]        
Debt Instrument [Line Items]        
Term of award 5 years      
Warrants granted 224,174      
Warrants granted, exercise price $ 6.87