Note 8 - Commitments and Contingencies - Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Operating lease cost	$ 150	$ 137
Variable lease cost	24	19
Total	174	156
Operating cash flows from operating leases	$ 146	$ 134

Amount of lease cost recognized by lessee for lease contract.

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-Section 55
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- 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

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
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-Section 55
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-URI https://asc.fasb.org/1943274/2147479589/842-20-55-53

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
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- Definition

Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

+ References

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