Fair value of financial instruments (Tables)
3 Months Ended
May 31, 2019
Fair Value Of Financial Instruments Tables Abstract  
Schedule of fair value of financial instruments

 

    Fair Value Measurements as at May 31, 2019  
    Carrying Amount     Fair Value     Level in the hierarchy  
Instruments measured at fair value:   $ -     $ -       -  
                         

Instruments measured at amortized cost:

                       
  Long-term debt     965,969       965,969     Level 2  
  Convertible notes (Second Issuance)   $ 3,556,249     $ 4,900,000     Level 2  

 

 

    Fair Value Measurements at February 28, 2019  
    Carrying Amount     Fair Value   Level in the hierarchy      
Instruments measured at fair value:                    
  Warrants (First Issuance)   $ 219,531     $ 219,531   Level 3      
                         
Instruments measured at amortized cost:                        
  Long-term debt     1,005,518       1,005,518   Level 2      
  Convertible notes (First Issuance)     2,495,636       2,650,000   Level 2      
  Convertible notes (Second Issuance)   $ 3,126,886     $ 3,150,000   Level 2