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Note 9 - Operating Segment Information - Segment Adjusted EBITDA Reconciliation (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Income before income tax expense | $ 650 | $ 1,376 | $ 5,242 | $ 2,321
Interest expense | 1,541 | 2,624 | 3,328 | 5,194
Depreciation and amortization | 3,368 | 3,428 | 6,620 | 6,816
Segment EBITDA | $ 5,559 | $ 7,428 | $ 15,190 | $ 14,331

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