Note 6 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2025	Jun. 30, 2024
Total lease cost	$ 651	$ 2,136
Weighted-average remaining lease term (years): Operating lease right-of-use assets (Year)	4 years 3 months 18 days	2 years 8 months 12 days
Weighted-average discount rate: Operating lease right-of-use assets	11.30%	10.00%
Operating cash flows from operating leases	$ 754	$ 1,723
Operating cash flows from finance leases	0	3
Financing cash flows from finance leases	0	85
Operating Expense [Member]
Operating lease cost	469	1,986
Short-term lease cost	182	94
Cost of Sales [Member]
Amortization of leased assets	0	53
Interest Expense [Member]
Interest on lease liabilities	$ 0	$ 3

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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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.

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

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