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Summary of Significant Accounting Policies - Foreign Currency (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Foreign Currency        
Loss of foreign currency transactions $ 369,000 $ (63,000) $ 1,352,000 $ (347,000)