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Note 1 - Organization and Accounting Policies - Analysis of Change in Allowance for Bad Debt (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Balance at beginning of period | $ (6,029) | $ (8,704)
Credit loss charges and other, net of receipts | (1,812) | (935)
Foreign currency gain (loss) | 12 | (73)
Balance at end of period | (7,829) | (12,832)
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |
Balance at beginning of period | $ 0 | $ (3,120)

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