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Note 11 - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Expected benefit	$ 2,449	$ 2,025
State tax expense	(2)	0
Tax credits	251	200
Change in valuation allowance	(2,465)	(1,838)
Stock-based compensation	(271)	(296)
Prior year true-up	43	0
Expiration of net operating loss carryovers	0	(88)
Other permanent items	(7)	(3)
Total income tax benefit/ (expense)	$ (2)	$ 0

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Represents the income tax reconciliation for expiring net operating loss carryforwards.

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Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying statutory federal (national) tax rate to pretax income (loss) from continuing operation attributable to other reconciling item. Excludes state and local income tax expense (benefit), federal tax expense (benefit), statutory income tax expense (benefit) outside of country of domicile, tax credit, nondeductible expense, deduction, income tax settlement, income tax contingency, and cross-border tax law.

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Amount of current and deferred state and local tax expense (benefit) attributable to income (loss) from continuing operations. Includes, but is not limited to, current and deferred regional, territorial, and provincial tax expense (benefit) for non-US (United States of America) jurisdiction.

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