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Note 13 - Selected Statements of Income Data - Financial Income, Net (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Interest income | $ 4,362 | $ 3,190 | $ 1,873
Gain (loss) on available-for-sale marketable securities, net | 90 | (55) | 13
Amortization of premium on available-for-sale marketable securities, net | 124 | (397) | (420)
Foreign exchange gain (loss), net | 688 | 74 | (1,269)
Total | $ 5,264 | $ 2,812 | $ 197

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