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Note 4 - Lease Commitments - Lease Costs (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Rent expense, operating leases $ 2,298 $ 2,477
Leased furniture, fixtures and office equipment depreciation expense, finance lease 49 292
Interest expense, finance lease 26 32
Rent expense, short-term leases 0 0
Total lease costs $ 2,373 $ 2,801
Weighted average remaining lease-term (in years), operating leases (Year) 2 years 10 months 24 days  
Weighted average remaining lease-term (in years), finance lease (Year) 2 years 10 months 24 days  
Weighted average discount rate, operating leases 4.90%  
Weighted average discount rate, finance lease 5.00%