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Note 12 - Segment Information (Details Textual) |  | 12 Months Ended
--- | --- | ---
Jan. 01, 2021 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Number of Reportable Segments |  | 2 |
Revenue from Contract with Customer, Including Assessed Tax |  | $ 255,719,000 | $ 230,517,000
Intersegment Eliminations [Member] |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | $ 0 | $ 0
Foreign Tax Authority [Member] | Previously Reported [Member] |  |  |
Income (Loss) Attributable to Parent, before Tax, Total | $ (615,000) |  |

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