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Statements of Cash Flows (Schedule of Cash and Restricted Cash) (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Sep. 30, 2022
Dec. 31, 2021
Schedule of Cash and Restricted Cash [Line Items]        
Cash $ 109 $ 26    
Restricted cash 13,236 25,183    
Total cash and restricted cash shown in the Consolidated Statements of Cash Flows $ 13,345 $ 25,209 $ 9,033 $ 45,063