Income Taxes (Summary Of Tax Credit Carryforwards) (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Tax Credit Carryforward [Line Items]
Total net operating loss amount	$ 17,663
Operating loss carryforward expiration year 2022
Tax Credit Carryforward [Line Items]
Net operating loss amount	1,851
Operating loss carryforward expiration year 2023
Tax Credit Carryforward [Line Items]
Net operating loss amount	3,566
Operating loss carryforward expiration year 2024
Tax Credit Carryforward [Line Items]
Net operating loss amount	1,708
Operating loss carryforward expiration year 2025 and beyond [Member]
Tax Credit Carryforward [Line Items]
Net operating loss amount	$ 10,538