Operating expenses (Tables)

12 Months Ended

Oct. 31, 2019

Disclosure Of Operating Expenses [Abstract]

Disclosure of detailed information about components of general and administrative expenses [Table Text Block]

		2019		2018		2017
General and administrative	$	56,720	$	63,936	$	98,187
Rent and occupancy		64,647		70,674		72,725
Office insurance		26,812		117,615		54,023
Investor relations, listing and filing fees		49,029		53,113		80,486
	$	197,208	$	305,338	$	305,421

Disclosure of detailed information about components of professional, other fees and salaries [Table Text Block]

		2019		2018		2017
Professional fees	$	157,354	$	165,685	$	224,139
Consulting fees		53,845		316,815		813,735
Salaries and benefits		230,782		264,780		395,239
	$	441,981	$	747,280	$	1,433,113