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Borrowings and Related Interest (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2003
Debt Instrument [Line Items] |  |  |  |
Other borrowings | $ 1,214 | $ 153 |  |
Subordinated Debt | $ 36,083 | 36,083 |  |
Trust redeemable preferred securities issued |  |  |  | $ 35,000
Debt Instrument Interest Rate Terms | 3-month LIBOR plus 295 basis points |  |  |
Gains Losses On Extinguishment Of Debt | $ 0 | (80) | $ (12,000) |
Federal Home Loan Bank Advances [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Loans pledged as collateral to secure FHLB advances | 847,300 | 1,300,000 |  |
Additional Borrowing Capacity | $ 762,000 | $ 920,000 |  |
Weighted average period remaining maturity of FHLB advances | 26.6 months | 3.2 months |  |
Interest payable | $ 176 | $ 322 |  |
Minimum amount of qualifying collateral | 110.00% |  |  |
Federal Home Loan Bank Advances [Member] | Minimum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument term | 1 day |  |  |
Federal Home Loan Bank Advances [Member] | Maximum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument term | 7 years |  |  |
Repurchase agreement |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Interest payable | $ 785 | $ 369 |  |
Junior Subordinated Debt [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Effective interest rate | 5.74% | 4.55% |  |
Face amount | $ 36,100 |  |  |
Debt Instrument Basis Spread On Variable Rate | 2.95% |  |  |

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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
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