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Intangible Assets (Amortization Expense For Finite-Lived Intangible Assets) (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Sep. 30, 2021
Dec. 31, 2020
Intangible Asset [Abstract]      
2022 $ 355    
2023 431    
2024 154    
Intangible assets, net $ 940 $ 940 $ 1,075