Note 7 - Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2025	Sep. 30, 2024
Amortization of operating right of use assets		$ 15	$ 0
Total operating lease expense	$ 18	18
Other lease expense	0	0
Total	$ 18	$ 18
Operating leases (in years) (Year)	1 year 11 months 8 days	1 year 11 months 8 days
Operating leases	6.61%	6.61%
Nonrelated Party [Member]
Amortization of operating right of use assets	$ 7	$ 7
Accretion of operating lease liability	1	1
Related Party [Member]
Amortization of operating right of use assets	8	8
Accretion of operating lease liability	$ 2	$ 2