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Income Taxes (Summary of Operating Loss Carryforwards and Tax Credit Carryforwards) (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Operating Loss Carryforwards [Line Items]    
Net deferred tax asset, net operating loss $ 12,398 $ 13,837
State and local jurisdiction    
Operating Loss Carryforwards [Line Items]    
Net deferred tax asset, net operating loss 15,347 17,516
Valuation allowance, net operating loss $ 14,422 $ 14,694