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Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract] |  |  |
SBA Loans, Probability of Future Losses | $ 1,700 |  |
SBA Recourse Provision | 2,068 | $ 0 | $ 0
Accrued credit losses for financial instruments with off-balance-sheet risk | $ 0 | $ 0 |

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- Definition Accrued Credit Losses for Financial Instruments with Off-balance-sheet Risk + References No definition available. + Details
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