Quarterly report pursuant to Section 13 or 15(d)

Nature of Operations and Liquidity (Liquidity) (Details)

v3.8.0.1
Nature of Operations and Liquidity (Liquidity) (Details) - USD ($)
1 Months Ended 6 Months Ended 9 Months Ended
Jul. 25, 2017
Jan. 31, 2018
Jan. 31, 2018
Jan. 31, 2017
Apr. 30, 2017
Debt Instrument [Line Items]          
Approximate cash position   $ 3,803,080 $ 3,803,080    
Restricted cash   190,506 190,506  
Proceeds from term loan     $ 7,500,000  
Secured Debt [Member] | Runway Growth Credit Fund [Member]          
Debt Instrument [Line Items]          
Debt instrument face amount $ 10,000,000        
Proceeds from term loan $ 5,000,000 $ 2,500,000      
LIBOR interest rate 10.00%        
Debt instrument term 4 years