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Note 9 - Operating Segment Information - Segment Adjusted EBITDA Reconciliation (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Income before income tax expense | $ 6,573 | $ 3,274 | $ 11,815 | $ 5,595
Interest expense | 1,569 | 2,464 | 4,897 | 7,658
Depreciation and amortization | 3,252 | 3,515 | 9,872 | 10,331
Impairment charge | 260 | 0 | 260 | 0
Segment EBITDA | $ 11,654 | $ 9,253 | $ 26,844 | $ 23,584

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