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Stockholders' Equity (Tables)
9 Months Ended
Jul. 31, 2019
Equity [Abstract]  
Schedule of Stockholders' Equity Note, Warrants or Rights

The following table summarizes outstanding warrant activity during the nine months ended July 31, 2019:

 

 

 

Series A

Warrants

 

 

Series C

Warrants

 

Balance as of October 31, 2018

 

 

640,000

 

 

 

964,114

 

Warrants exchanged

 

 

(640,000

)

 

 

 

Warrants exercised

 

 

 

 

 

 

Warrants expired

 

 

 

 

 

 

Balance as of July 31, 2019

 

 

 

 

 

964,114