Note 15 - Equity Incentive Plans - Stock Option Activity (Details) - $ / shares	3 Months Ended	12 Months Ended
Sep. 30, 2024	Jun. 30, 2024
Outstanding, options (in shares)	146,539
Outstanding, options, weighted average exercise price (in dollars per share)	$ 6.18
Outstanding, options, weighted average remaining contractual life (Year)	8 years 7 months 6 days	8 years 9 months 18 days
Forfeited/Cancelled, options (in shares)	(5,100)
Forfeited/Cancelled, options, weighted average exercise price (in dollars per share)	$ 4.18
Outstanding, options (in shares)	141,439	146,539
Outstanding, options, weighted average exercise price (in dollars per share)	$ 6.25	$ 6.18
Exercisable, options (in shares)	63,059
Exercisable, options, weighted average exercise price (in dollars per share)	$ 11.32
Exercisable, options, weighted average remaining contractual life (Year)	8 years 4 months 24 days

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Number of options outstanding, including both vested and non-vested options.

+ References

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

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-Topic 718
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-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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