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Marketable Securities (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Marketable Securities [Line Items]    
Amount of purchases $ 2,179 $ 0
Gross unrealized gains 156  
Gross unrealized losses 0  
Historical cost 2,179  
Level 1    
Marketable Securities [Line Items]    
Fair value of securities $ 2,335