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Note 6 - Goodwill and Intangibles - Changes in customer list intangible (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Balance at the beginning of period | $ 11,381 | $ 14,970 |
Intangibles amortization | 2,032 | 2,149 | $ 2,266
Balance at the end of the period | $ 9,349 | 11,381 | 14,970
Customer Lists [Member] |  |  |
Balance at the beginning of period |  | 1,504 | 1,855
Intangibles amortization |  | (64) | (137)
Balance at the end of the period |  |  | 1,504
Bates Companies | Customer Lists [Member] |  |  |
Acquisition of Bates Companies - measurement period adjustment |  |  | $ (214)
Bates Companies | Customer Lists [Member] |  |  |
Sale of Bates Companies |  | $ (1,440) |

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