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Fair Value Measurements (Fair Value Assets Measured on Recurring Basis Unobservable Inputs Reconciliation) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Fair Value Measurements [Abstract]    
Beginning Balance $ 56 $ 42
Change in value 0 14
Ending Balance $ 56 $ 56