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Net Income per Common Share (Narrative) (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2022
Net Income per Common Share [Abstract]            
Anti-dilutive outstanding options 434,000 518,000 0 807,000 137,000 0