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Note 8 - Lease Obligations - Lease Obligations (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Amortization of right-of-use assets | $ 528 | $ 885 | $ 1,848 | $ 2,806
Interest on lease liabilities | 92 | 159 | 314 | 493
Operating lease cost | 7,946 | 6,280 | 20,593 | 18,044
Variable lease cost | 39 | 8 | 148 | 99
Total lease cost | 8,605 | 7,332 | 22,903 | 21,442
Operating cash flows from finance leases | 92 | 159 | 314 | 493
Operating cash flows from operating leases | 7,985 | 6,288 | 20,741 | 18,143
Financing cash flows from finance leases | 528 | 885 | 1,848 | 2,806
Right-of-use assets obtained in exchange for new finance lease liabilities | 0 | 0 | 458 | 0
Right-of-use assets obtained in exchange for new operating lease liabilities | $ 3,154 | $ 13,265 | $ 20,206 | $ 15,795
Weighted-average remaining lease term—finance leases (in years) (Year) | 1 year 3 months 18 days |  | 1 year 3 months 18 days |
Weighted-average remaining lease term—operating leases (in years) (Year) | 4 years 10 months 24 days |  | 4 years 10 months 24 days |
Weighted-average discount rate—finance leases | 5.80% |  | 5.80% |
Weighted-average discount rate—operating leases | 9.50% |  | 9.50% |

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- Definition Amount of interest expense on finance lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI https://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 + Details
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- Definition Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(3) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI https://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 + Details
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