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Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Assets |  |
Marketable equity securities | $ 1,032 | $ 949
Short-term investments | 8,436 | 3,951
Level 1 |  |
Assets |  |
Marketable equity securities | 1,032 | 949
Short-term investments | 8,436 | 3,951
Level 2 |  |
Assets |  |
Marketable equity securities | 0 | 0
Short-term investments | 0 | 0
Level 3 |  |
Assets |  |
Marketable equity securities | 0 | 0
Short-term investments | $ 0 | $ 0

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