Stock Options (Tables)

6 Months Ended

Mar. 31, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of stock options

	Shares Underlying Options Outstanding						Shares Underlying Options Exercisable
Range of Exercise Price	Shares Underlying Options Outstanding		Weighted Average Remaining Contractual Life		Weighted Average Exercise Price		Shares Underlying Options Exercisable		Weighted Average Exercise Price
$0.38 at March 31, 2019		6,780,000		0.47	$	0.38		6,780,000	$	0.38
$0.23 at March 31, 2019		600,000		0.63	$	0.23		600,000	$	0.23
		7,380,000		0.48	$	0.37		7,380,000	$	0.37

Summary of stock option activity

	Number of Underlying Shares			Weighted Average Exercise Price		Weighted Average Fair Market Value
Balance, September 30, 2018		8,080,000		$	0.36	$	0.29
Expired, October 28, 2018		(250,000	)		0.30		0.30
Expired, December 4, 2018		(450,000	)		0.34		0.36
Balance, March 31, 2019		7,380,000		$	0.37	$	0.29
Exercisable, March 31, 2019		7,380,000		$	0.37	$	0.29