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Note 8 - Leases - Leases Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Amortization of finance lease assets |  | $ 293 | $ 268 | $ 869 | $ 709
Interest on finance lease liabilities |  | 82 | 92 | 259 | 265
Total finance lease costs |  | 375 | 360 | 1,128 | 974
Operating lease cost |  | 716 | 741 | 2,119 | 2,260
Short-term lease cost |  | 187 | 166 | 483 | 540
Variable lease cost | [1] | 218 | 220 | 669 | 647
Sublease income |  | (64) | (47) | (143) | (140)
Total operating lease costs |  | 1,057 | 1,080 | 3,128 | 3,307
Total lease cost |  | $ 1,432 | $ 1,440 | 4,256 | 4,281
Operating cash outflow from operating leases |  |  |  | $ 2,609 | $ 2,722
Weighted-average remaining lease term-finance leases at end of period (in years) (Year) |  | 2 years 6 months | 2 years | 2 years 6 months | 2 years
Weighted-average remaining lease term-operating leases at end of period (in years) (Year) |  | 8 years 3 months 18 days | 9 years 1 month 6 days | 8 years 3 months 18 days | 9 years 1 month 6 days
Weighted-average discount rate-finance leases at end of period |  | 6.00% | 6.40% | 6.00% | 6.40%
Weighted-average discount rate-operating leases at end of period |  | 8.70% | 8.60% | 8.70% | 8.60%
[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/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 Amount of amortization expense attributable to right-of-use asset from finance lease. + 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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