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Note 9 - Leases - Leases Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Amortization of finance lease assets |  | $ 369 | $ 288 | $ 739 | $ 576
Interest on finance lease liabilities |  | 86 | 96 | 184 | 176
Total finance lease costs |  | 455 | 384 | 923 | 752
Operating lease cost |  | 689 | 705 | 1,393 | 1,403
Short-term lease cost |  | 78 | 144 | 167 | 296
Variable lease cost | [1] | 178 | 226 | 523 | 452
Sublease income |  | (49) | (31) | (97) | (79)
Total operating lease costs |  | 896 | 1,044 | 1,986 | 2,072
Total lease cost |  | $ 1,351 | $ 1,428 | 2,909 | 2,824
Operating cash outflow from operating leases |  |  |  | $ 1,727 | $ 1,736
Weighted-average remaining lease term-finance leases at end of period (in years) (Year) |  | 3 years 1 month 6 days | 2 years 8 months 12 days | 3 years 1 month 6 days | 2 years 8 months 12 days
Weighted-average remaining lease term-operating leases at end of period (in years) (Year) |  | 7 years 8 months 12 days | 8 years 6 months | 7 years 8 months 12 days | 8 years 6 months
Weighted-average discount rate-finance leases at end of period |  | 5.10% | 6.00% | 5.10% | 6.00%
Weighted-average discount rate-operating leases at end of period |  | 8.80% | 8.70% | 8.80% | 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.

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- Definition Amount of interest expense on finance lease liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 53 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479589/842-20-55-53 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-4 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-4 + Details
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