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Marketable Securities - Maturities (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Summary of maturities of marketable securities |  |
Due within one year | $ 9,156 | $ 6,501
Due after one year through three years | 13,123 | 23,377
Total | $ 22,279 | $ 29,878

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