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Note 9 - Leases - Leases Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Amortization of finance lease assets $ 229 $ 293 $ 968 $ 869
Interest on finance lease liabilities 108 82 292 259
Total finance lease costs 337 375 1,260 1,128
Operating lease cost 698 716 2,091 2,119
Short-term lease cost 122 187 289 483
Variable lease cost [1] 283 218 806 669
Sublease income (49) (64) (146) (143)
Total operating lease costs 1,054 1,057 3,040 3,128
Total lease cost $ 1,391 $ 1,432 4,300 4,256
Operating cash outflow from operating leases     $ 2,592 $ 2,609
Weighted-average remaining lease term-finance leases at end of period (in years) (Year) 3 years 4 months 24 days 2 years 6 months 3 years 4 months 24 days 2 years 6 months
Weighted-average remaining lease term-operating leases at end of period (in years) (Year) 7 years 6 months 8 years 3 months 18 days 7 years 6 months 8 years 3 months 18 days
Weighted-average discount rate-finance leases at end of period 6.10% 6.00% 6.10% 6.00%
Weighted-average discount rate-operating leases at end of period 8.90% 8.70% 8.90% 8.70%
[1] Variable lease costs consist primarily of taxes, insurance, utilities, and common area or other maintenance costs for the Company’s leased facilities and equipment.