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Note 8 - Lease - Lease Obligations (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Amortization of right-of-use assets $ 54 $ 528 $ 567 $ 1,848
Interest on lease liabilities 181 92 305 314
Operating lease cost 4,656 7,946 13,901 20,593
Variable lease cost 87 39 972 148
Total lease cost 4,978 8,605 15,745 22,903
Operating cash flows from finance leases 181 92 305 314
Operating cash flows from operating leases 3,436 4,397 10,614 12,830
Financing cash flows from finance leases 1,923 528 5,432 1,848
Right-of-use assets obtained in exchange for new finance lease liabilities 2,799 0 5,938 458
Right-of-use assets obtained in exchange for new operating lease liabilities $ 0 $ 3,154 $ 3,992 $ 20,206
Weighted-average remaining lease term—finance leases (in years) (Year) 4 years   4 years  
Weighted-average remaining lease term—operating leases (in years) (Year) 4 years 6 months   4 years 6 months  
Weighted-average discount rate—finance leases 13.20%   13.20%  
Weighted-average discount rate—operating leases 9.90%   9.90%