Annual report pursuant to Section 13 and 15(d)

Income Taxes (Schedule Of Roll Forward Of Valuation Allowance For Deferred Income Tax Assets) (Details)

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Income Taxes (Schedule Of Roll Forward Of Valuation Allowance For Deferred Income Tax Assets) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income Taxes [Abstract]      
Valuation Allowance, Balance at beginning of year $ 4,378 $ 22,348 $ 28,632
Charged to Costs and Expenses 51 (17,970) (6,284)
Other Adjustments (1,106)    
Valuation Allowance, Balance at end of period $ 3,323 $ 4,378 $ 22,348