Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Derivative Liabilities (Tables)

Note 7 - Derivative Liabilities (Tables)

3 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Derivative Liabilities at Fair Value [Table Text Block]

Fair Value Measurements Using Significant Unobservable Inputs - December 31, 2021
(Level 3)		Series F				Series G				Series H
Beginning balance at September 30, 2021		$	1,000,000			$	748,275			$	459,200

Issuances			—				—				—

Adjustments to estimated fair value			—				—				—

Ending balance at December 31, 2021		$	1,000,000			$	748,275			$	459,200

Fair Value Measurements Using Significant Unobservable Inputs - September 30, 2021
(Level 3)		Series F				Series G				Series H
Beginning balance at September 30, 2020		$	1,000,000			$	748,275			$	568,144

Issuances			—				—				—

Adjustments to estimated fair value			—				—				(108,944	)

Ending balance at December 31, 2020		$	1,000,000			$	748,275			$	459,200

Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

		Series F				Series G				Series H
Closing price per share of Common Stock		$	0.095			$	0.095			$	0.095
Exercise price per share		$	0.75			$	0.70			$	0.40
Expected volatility			109.86	%			97.04	%			93.53	%
Risk-free interest rate			0.05	%			0.56	%			0.85	%
Dividend yield			—				—				—
Remaining expected term of underlying securities (years)			0.08				1.44				2.33

		Series F				Series G				Series H
Closing price per share of Common Stock		$	0.12			$	0.12			$	0.12
Exercise price per share		$	0.75			$	0.70			$	0.40
Expected volatility			90.28	%			87.40	%			86.59	%
Risk-free interest rate			0.04	%			0.19	%			0.41	%
Dividend yield			—				—				—
Remaining expected term of underlying securities (years)			0.34				1.70				2.58