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Selected Income Statement Data (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Selected Income Statement Data [Line Items] |  |  |
Foreign currency income (expense) | $ (351) | $ 58 | $ (351)
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer One [Member] |  |  |
Selected Income Statement Data [Line Items] |  |  |
Percentage of Concentration Risk | 11.00% |  |

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