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Bank Deposits (Scheduled Maturities Of Certificates Of Deposit) (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
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Deposits Liabilities Balance Sheet Reported Amounts [Abstract] |  |
Within one year | $ 1,213 | $ 4,863
One to three years | 855 | 2,356
Three to five years |  | 145
Certificates of deposit, less than $100 | 2,068 | 7,364
Within one year | 877 | 5,464
One to three years | 956 | 1,975
Three to five years |  | 284
Certificates of deposit, $100 and greater | 1,833 | 7,723
Total certificates of deposit | $ 3,901 | $ 15,087

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