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Investments - Available-for-Sale (Tables)
6 Months Ended
Jun. 30, 2021
Investments, Debt and Equity Securities [Abstract]  
Investments available for sale
Investments available-for-sale consisted of the following as of June 30, 2021 and December 31, 2020 (table in thousands):
June 30, 2021
Amortized CostUnrealized GainUnrealized LossAccrued Interest IncomeFair Value
Available-for-Sale Securities
Bonds$8,558 $$— $15 $8,574 
December 31, 2020
Amortized CostUnrealized GainUnrealized LossAccrued InterestFair Value
Available-for-Sale Securities
Bonds$9,987 $$— $$9,997