Note 8 - Leases - Lease Expense (Details) - USD ($)	12 Months Ended
Jun. 30, 2023	Jun. 30, 2022
Operating cash flows from operating leases included in lease liabilities	$ 0	$ 44,000
Lease liabilities obtained from new ROU assets - operating	0	0
Operating cash flows from financing leases included in lease liabilities	4,000	0
Financing cash flows from financing leases included in lease liabilities	27,000	(0)
Lease liabilities obtained from new ROU assets - financing	$ 0	$ 93,000
Weighted-average discount rate - operating leases	0.00%	0.00%
Weighted-average remaining lease term - financing leases (years) (Year)	2 years 3 months	3 years 3 months
Weighted-average discount rate - financing leases	4.75%	4.75%
Continuing Operations [Member]
Amortization of right-of-use assets	$ 29,000	$ 0
Interest on lease liabilities	4,000	0
Total finance lease cost	33,000	0
Operating lease cost	0	44,000
Short-term lease cost	90,000	124,000
Total lease cost	$ 123,000	$ 168,000

Amount of finance lease related cost.

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Amount of interest expense on finance lease liability.

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Amount of interest paid on finance lease liability.

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Amount of cash outflow for principal payment on finance lease.

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Amount of amortization expense attributable to right-of-use asset from finance lease.

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Weighted average discount rate for finance lease calculated at point in time.

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Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of lease cost recognized by lessee for lease contract.

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Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

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Weighted average discount rate for operating lease calculated at point in time.

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Amount of increase in right-of-use asset obtained in exchange for finance lease liability.

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Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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