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Note 14 - Leases (Details Textual) $ in Millions	3 Months Ended			12 Months Ended
	Mar. 31, 2025 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2019	May 26, 2017 ft²
Operating Lease, Cost	$ 0.2		$ 0.1
Operating Lease, Payments	$ 0.2		$ 0.2
Operating Lease, Weighted Average Remaining Lease Term (Year)	1 year 11 months 23 days
Operating Lease, Weighted Average Discount Rate, Percent	9.95%
Operating Lease, Liability, Noncurrent	$ 0.7
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent
Facilities and Office Space in Corvallis Oregon [Member]
Lessee, Operating Lease, Number of Renewal Options				2
Two Years, Option Renewal Term [Member] | Facilities and Office Space in Corvallis Oregon [Member]
Lessee, Operating Lease, Renewal Term (Year)				2 years
Three Years, Option RenewalTerm [Member] | Facilities and Office Space in Corvallis Oregon [Member]
Lessee, Operating Lease, Renewal Term (Year)				3 years
Increase (Decrease) in Operating Right-of-use Assets		$ 0.5
The New HQ Lease [Member] | MacAndrews and Forbes Incorporated [Member]
Lessee, Operating Lease, Term of Contract (Year)					10 years
Area of Real Estate Property (Square Foot) | ft²					3,200

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Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ 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 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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