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Allowance for Loan and Lease Losses (Details 6) - Originated Loans and Leases $ in Thousands | 12 Months Ended
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Dec. 31, 2016 USD ($) loan | Dec. 31, 2015 USD ($) loan
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of Loans | loan |  | 15 |  | 24 |
Pre-Modification Outstanding Recorded Investment |  | $ 2,439 |  | $ 4,812 |
Post- Modification Outstanding Recorded Investment |  | $ 2,439 |  | $ 4,812 |
Number of Loans TDRs | loan |  | 1 | [1] | 4 | [2]
Post-modification Outstanding Recorded Investment TDRs |  | $ 1,800 | [1] | $ 447 | [2]
Commercial and industrial other |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of Loans | loan |  | 2 | [3] | 5 | [4]
Pre-Modification Outstanding Recorded Investment |  | $ 1,115 | [3] | $ 433 | [4]
Post- Modification Outstanding Recorded Investment |  | $ 1,115 | [3] | $ 433 | [4]
Number of Loans TDRs | loan |  | 0 | [1],[3] | 2 | [2],[4]
Post-modification Outstanding Recorded Investment TDRs |  | $ 0 | [1],[3] | $ 311 | [2],[4]
Concession, extension of term, loan |  |  |  |  |
Concession, extended term and lowered rate, loan |  |  |  |  |
Commercial real estate other |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of Loans | loan | [5] | 1 |  | 3 |
Pre-Modification Outstanding Recorded Investment | [5] | $ 50 |  | $ 2,552 |
Post- Modification Outstanding Recorded Investment | [5] | $ 50 |  | $ 2,552 |
Number of Loans TDRs | loan | [1],[5] | 1 |  | 0 |
Post-modification Outstanding Recorded Investment TDRs | [1],[5] | $ 1,800 |  | $ 0 |
Concession, extension of term, loan |  |  |  |  |
Concession, extended term and lowered rate, loan |  |  |  |  |
Residential real estate Home Equity |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of Loans | loan | [6] | 12 |  | 14 |
Pre-Modification Outstanding Recorded Investment | [6] | $ 1,274 |  | $ 1,558 |
Post- Modification Outstanding Recorded Investment | [6] | $ 1,274 |  | $ 1,558 |
Number of Loans TDRs | loan | [1],[6] | 0 |  | 2 |
Post-modification Outstanding Recorded Investment TDRs | [1],[6] | $ 0 |  | $ 136 |
Concession, extension of term, loan |  |  |  |  |
Concession, extended term and lowered rate, loan |  |  |  |  |
Residential real estate Mortgages |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of Loans | loan | [7] |  |  | 2 |
Pre-Modification Outstanding Recorded Investment | [7] |  |  | $ 269 |
Post- Modification Outstanding Recorded Investment | [7] |  |  | $ 269 |
Number of Loans TDRs | loan | [2],[7] |  |  | 0 |
Post-modification Outstanding Recorded Investment TDRs | [2],[7] |  |  | $ 0 |
Concession, extension of term, loan |  | 269 |  |  |
Concession, extended term and lowered rate, loan |  | $ 269 |  |  |
Extended Term | Commercial and Industrial Sector [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of Loans | loan |  |  |  | 2 |
Post- Modification Outstanding Recorded Investment |  |  |  | $ 319 |
Extended Term | Commercial real estate other |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of Loans | loan |  |  |  | 1 |
Post- Modification Outstanding Recorded Investment |  |  |  | $ 28 |
Extended Term | Residential real estate Home Equity |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of Loans | loan |  |  |  | 9 |
Post- Modification Outstanding Recorded Investment |  |  |  | $ 630 |
Reduction of Interest Rate | Commercial and Industrial Sector [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of Loans | loan |  |  |  | 3 |
Post- Modification Outstanding Recorded Investment |  |  |  | $ 114 |
Reduction of Interest Rate | Commercial real estate other |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of Loans | loan |  |  |  | 2 |
Post- Modification Outstanding Recorded Investment |  |  |  | $ 2,500 |
Reduction of Interest Rate | Residential real estate Home Equity |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of Loans | loan |  |  |  | 5 |
Post- Modification Outstanding Recorded Investment |  |  |  | $ 928 |
Extension of Term/Reduction of Rate | Residential real estate Mortgages |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of Loans | loan |  |  |  | 2 |
Post- Modification Outstanding Recorded Investment |  |  |  | $ 269 |
[1] | TDRs that defaulted during the 12 months ended December 31, 2015 that had been restructured in the prior twelve months.
[2] | Represents the following concessions: extension of term (9 loans $630,000) and reduction of rate (5 loans $928,000).
[3] | Represents the following concessions: extension of term and reduction of rate.
[4] | Represents the following concessions: extension of term (2 loans $319,000) and reduction of rate (3 loans $114,000).
[5] | Represents the following concessions: reduction of rate.
[6] | Represents the following concessions: extension of term and reduction of rate.
[7] | TDRs that defaulted during the 12 months ended December 31, 2016 that had been restructured in the prior twelve months.

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