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Note 8 - Outstanding Warrants - Fair Value Assumptions (Details)	Mar. 31, 2023 $ / shares yr	Mar. 31, 2022 $ / shares yr
Measurement Input, Expected Dividend Rate [Member]
Warrants and Rights Outstanding, Measurement Input	0	0
Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input	0.0441	0.0145
Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input	1.2532	1.3955
Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Measurement Input | yr	2.00	4.00
Measurement Input, Exercise Price [Member]
Warrants and Rights Outstanding, Measurement Input	0.01	13.33
Measurement Input, Share Price [Member]
Warrants and Rights Outstanding, Measurement Input | $ / shares	3.96	13.06
Fair Value per Warrant on Grant Date [Member]
Warrants and Rights Outstanding, Measurement Input	3.95	11.01

X

- Definition

Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

+ Details

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