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Note 6 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Jun. 30, 2025
Total lease cost	$ 87	$ 213
Weighted-average remaining lease term (years): Operating lease right-of-use assets (Year)	4 years 2 months 12 days		4 years 3 months 18 days
Weighted-average discount rate: Operating lease right-of-use assets	11.40%		11.30%
Operating Expense [Member]
Operating lease cost	$ 84	122
Short-term lease cost	$ 3	$ 91

X

- Definition

Amount of lease cost recognized by lessee for lease contract.

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X

- Definition

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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- Definition

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

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- Definition

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

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X

- Definition

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

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