Note 4 - Summary of Significant Accounting Policies - Assumptions of Option Grants (Details) - $ / shares	Sep. 20, 2020	Mar. 20, 2020
Grant Date 1 [Member]
Exercise Price (in AUD per share)	$ 0.30
Share Price at Grant Date (in AUD per share)	$ 0.32
Volatility	62.00%
Expected Life (Year)	5 years
Risk Free Interest Rate	0.45%
Fair Value of Option (in AUD per share)	$ 0.11
Grant Date 2 [Member]
Exercise Price (in AUD per share)		$ 0.20
Share Price at Grant Date (in AUD per share)		$ 0.13
Volatility		61.00%
Expected Life (Year)		4 years
Risk Free Interest Rate		0.44%
Fair Value of Option (in AUD per share)		$ 0.03
Grant Date 3 [Member]
Exercise Price (in AUD per share)		0.25
Share Price at Grant Date (in AUD per share)		$ 0.13
Volatility		61.00%
Expected Life (Year)		5 years
Risk Free Interest Rate		0.50%
Fair Value of Option (in AUD per share)		$ 0.03
Grant Date 4 [Member]
Exercise Price (in AUD per share)		0.30
Share Price at Grant Date (in AUD per share)		$ 0.13
Volatility		61.00%
Expected Life (Year)		5 years
Risk Free Interest Rate		0.50%
Fair Value of Option (in AUD per share)		$ 0.02

Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Price of a single share of a number of saleable stocks of a company.

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

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