Note 7 - Income Taxes (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023
Liability for Uncertainty in Income Taxes, Current	$ 0	$ 0
Income Tax Examination, Penalties and Interest Accrued	0	$ 0
Capital Loss Carryforward [Member]
Tax Credit Carryforward, Amount	2,343
Capital Loss Carryforward [Member] \| Tax Year 2025 [Member]
Tax Credit Carryforward, Amount	271
Capital Loss Carryforward [Member] \| Tax Year 2026 [Member]
Tax Credit Carryforward, Amount	1,152
Capital Loss Carryforward [Member] \| Tax Year 2028 [Member]
Tax Credit Carryforward, Amount	920
Domestic Tax Jurisdiction [Member]
Operating Loss Carryforwards	21,345
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	$ 4,005

The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-15

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Amount recognized for uncertainty in income taxes classified as current.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(20))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-3

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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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