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Note 6 - Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Cost Basis | $ 25,248 | $ 25,248
Accumulated Amortization | (15,096) | (14,928)
Accumulated Impairment Charges | (7,592) | (7,592)
Intangible assets, net | $ 2,560 | $ 2,728
Remaining Average Amortization Period (Year) | 4 years 1 month 6 days | 4 years 3 months 18 days
Noncompete Agreements [Member] |  |
Cost Basis | $ 170 | $ 170
Accumulated Amortization | (170) | (167)
Accumulated Impairment Charges | 0 | 0
Intangible assets, net | 0 | $ 3
Remaining Average Amortization Period (Year) |  | 1 month 6 days
Customer Relationships [Member] |  |
Cost Basis | 15,979 | $ 15,979
Accumulated Amortization | (7,646) | (7,581)
Accumulated Impairment Charges | (7,592) | (7,592)
Intangible assets, net | $ 741 | $ 806
Remaining Average Amortization Period (Year) | 2 years 9 months 18 days | 3 years 1 month 6 days
Trade Names [Member] |  |
Cost Basis | $ 9,099 | $ 9,099
Accumulated Amortization | (7,280) | (7,180)
Accumulated Impairment Charges | 0 | 0
Intangible assets, net | $ 1,819 | $ 1,919
Remaining Average Amortization Period (Year) | 4 years 6 months | 4 years 9 months 18 days

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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