Note 8 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Weighted-average remaining lease term (Year)	3 years 3 months 25 days		3 years 3 months 25 days
Weighted-average discount rate	6.17%		6.17%
Operating lease cost	$ 438	$ 438	$ 876	$ 876
Cash paid for amounts included in the measurement of lease liabilities	$ 452	$ 442	$ 897	$ 878

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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-Topic 842
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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

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- Definition

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

+ References

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-URI https://asc.fasb.org//1943274/2147479589/842-20-55-53

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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.

+ References

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-Topic 842
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