8. Share Purchase Warrants: Schedule of Additional information regarding share purchase warrants (Details)	6 Months Ended
	Mar. 31, 2020 shares
Number of Warrants Outstanding and Exercisable	7,336,751
Remaining Contractual Life (years)	3 years 4 months 2 days
0.001
Number of Warrants Outstanding and Exercisable	19,512
Remaining Contractual Life (years)	4 days
0.01
Number of Warrants Outstanding and Exercisable	603,015
Remaining Contractual Life (years)	3 months 11 days
0.10
Number of Warrants Outstanding and Exercisable	3,250,000
Remaining Contractual Life (years)	1 year 4 months 24 days
0.15
Number of Warrants Outstanding and Exercisable	1,500,000
Remaining Contractual Life (years)	8 months 12 days
0.17
Number of Warrants Outstanding and Exercisable	500,000
Remaining Contractual Life (years)	3 months 18 days
0.18
Number of Warrants Outstanding and Exercisable	722,224
Remaining Contractual Life (years)	3 months 18 days
0.20
Number of Warrants Outstanding and Exercisable	500,000
Remaining Contractual Life (years)	3 months 18 days
0.50
Number of Warrants Outstanding and Exercisable	242,000
Remaining Contractual Life (years)	18 days