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v3.23.3

Marketable Securities - Schedule of Available-For-Sale Securities (Details) - USD ($) | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Available-for-sale securities: |  |
Amortized Cost | $ 14,858,000 | $ 22,992,000
Gross Unrealized Gain | 1,000 | 2,000
Gross Unrealized (Losses) | (385,000) | (715,000)
Estimated Fair Value | 14,474,000 | 22,279,000
Held-to-maturity securities: |  |
Amortized Cost |  | 0
Tax-exempt municipal securities |  |
Available-for-sale securities: |  |
Amortized Cost | 11,654,000 | 15,852,000
Gross Unrealized Gain | 1,000 | 2,000
Gross Unrealized (Losses) | (263,000) | (507,000)
Estimated Fair Value | 11,392,000 | 15,347,000
Corporate debt securities |  |
Available-for-sale securities: |  |
Amortized Cost | 3,204,000 | 7,140,000
Gross Unrealized Gain | 0 | 0
Gross Unrealized (Losses) | (122,000) | (208,000)
Estimated Fair Value | 3,082,000 | $ 6,932,000
Term deposits |  |
Held-to-maturity securities: |  |
Amortized Cost | 16,400,000 |
Gross Unrealized Gain | 0 |
Gross Unrealized (Losses) | 0 |
Estimated Fair Value | $ 16,400,000 |

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