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Note 5 - Commitments and Contingencies - Non-cash Flow Information Related to Rou Asset and Lease Liabilities (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Accretion of the lease liability | $ 84 | $ 85 | $ 171 | $ 179
Amortization of right-of-use assets | $ 97 | $ 74 | $ 191 | $ 168
Operating leases (in years) (Year) | 4 years 8 months 12 days |  | 4 years 8 months 12 days |
Finance leases (in years) (Year) | 13 years 6 months |  | 13 years 6 months |
Operating leases | 14.10% |  | 14.10% |
Finance leases | 13.20% |  | 13.20% |

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