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Investments - Available-for-Sale
3 Months Ended
Mar. 31, 2024
Investments, Debt and Equity Securities [Abstract]  
Investments - Available-for-Sale Investments - Available-for-Sale
Investments available-for-sale consisted of the following as of March 31, 2024 and December 31, 2023 (table in thousands):
March 31, 2024
Amortized CostUnrealized GainUnrealized LossAccrued InterestFair Value
Available-for-Sale Securities
Debt securities$1,948 $29 $— $— $1,977 

December 31, 2023
Amortized CostUnrealized GainUnrealized LossAccrued InterestFair Value
Available-for-Sale Securities
Debt securities$1,948 $$— $— $1,952 
The fair value of investments available-for-sale are determined using quoted market prices from daily exchange-traded markets based on the closing price as of the balance sheet date and are classified as a Level 1 measurement under ASC 820 Fair Value Measurements.
As of March 31, 2024 and December 31, 2023, our available-for-sale securities were all due within one year.