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Note 4 - Equity - Black-Scholes Option Pricing Model (Details) - $ / shares	12 Months Ended
	Mar. 31, 2024	Jan. 26, 2024
Share Price (in dollars per share)		$ 100
Black-Scholes Model [Member] | Warrant [Member] | Minimum [Member]
Share Price (in dollars per share)	$ 2
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Discount Rate	4.04%
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term (Year)	3 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate	104.00%
Black-Scholes Model [Member] | Warrant [Member] | Maximum [Member]
Share Price (in dollars per share)	$ 5
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Discount Rate	4.54%
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term (Year)	5 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate	119.00%

X

- Definition

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

+ References

No definition available.

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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- Definition

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

+ References

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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://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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