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Investments - Available-for-Sale (Tables)
3 Months Ended
Mar. 31, 2022
Investments, Debt and Equity Securities [Abstract]  
Investments Available-for-Sale
Investments available-for-sale consisted of the following as of December 31, 2021 (table in thousands):

December 31, 2021
Amortized CostUnrealized GainUnrealized LossAccrued InterestFair Value
Available-for-Sale Securities
Bonds$9,143 $$— $14 $9,158