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Cash and Cash Equivalents (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Cash and Cash Equivalents      
Cash On Deposit At Banks $ 9,176 $ 9,068  
Money Market Funds 37,139 37,121  
Cash And Cash Equivalents $ 46,315 $ 46,189 $ 17,595