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Loans, Troubled Debt Restructurings Segregated by Class (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2016 USD ($) Loan | Sep. 30, 2015 USD ($) Loan | Sep. 30, 2016 USD ($) Loan | Sep. 30, 2015 USD ($) Loan | Dec. 31, 2015 USD ($) Loan
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of Loans | Loan | 2 | 6 | 45 | 18 | 34
Post-Modification Outstanding Balance | $ 152 | $ 1,650 | $ 13,070 | $ 2,601 | $ 11,127
Defaulted restructured loans, number of loans | Loan | 2 | 2 | 4 | 5 |
Defaulted restructured loans, recorded investment | $ 1,460 | $ 31 | $ 2,328 | $ 680 |
Term Modification [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Post-Modification Outstanding Balance | 152 | 1,485 | 12,210 | 2,146 | 8,519
Rate Modification [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Post-Modification Outstanding Balance | 0 | 0 | 0 | 0 | 0
Combination [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Post-Modification Outstanding Balance | $ 0 | $ 165 | $ 860 | $ 455 | $ 2,608
Commercial [Member] | Construction [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of Loans | Loan |  |  | 5 |  | 3
Post-Modification Outstanding Balance |  |  | $ 1,408 |  | $ 428
Commercial [Member] | Construction [Member] | Term Modification [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Post-Modification Outstanding Balance |  |  | 1,408 |  | 428
Commercial [Member] | Construction [Member] | Rate Modification [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Post-Modification Outstanding Balance |  |  | 0 |  | 0
Commercial [Member] | Construction [Member] | Combination [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Post-Modification Outstanding Balance |  |  | $ 0 |  | $ 0
Commercial [Member] | Real Estate [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of Loans | Loan | 2 | 5 | 23 | 13 | 21
Post-Modification Outstanding Balance | $ 152 | $ 511 | $ 6,341 | $ 1,118 | $ 6,004
Defaulted restructured loans, number of loans | Loan | 1 | 2 | 2 | 4 |
Defaulted restructured loans, recorded investment | $ 1,446 | $ 31 | $ 1,956 | $ 390 |
Commercial [Member] | Real Estate [Member] | Term Modification [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Post-Modification Outstanding Balance | 152 | 346 | 5,761 | 953 | 4,244
Commercial [Member] | Real Estate [Member] | Rate Modification [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Post-Modification Outstanding Balance | 0 | 0 | 0 | 0 | 0
Commercial [Member] | Real Estate [Member] | Combination [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Post-Modification Outstanding Balance | $ 0 | $ 165 | $ 580 | $ 165 | $ 1,760
Commercial [Member] | Other [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of Loans | Loan |  | 1 | 16 | 4 | 7
Post-Modification Outstanding Balance |  | $ 1,139 | $ 5,041 | $ 1,193 | $ 3,847
Defaulted restructured loans, number of loans | Loan | 1 |  | 2 |  |
Defaulted restructured loans, recorded investment | $ 14 |  | $ 372 |  |
Commercial [Member] | Other [Member] | Term Modification [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Post-Modification Outstanding Balance |  | 1,139 | 5,041 | 1,193 | 3,847
Commercial [Member] | Other [Member] | Rate Modification [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Post-Modification Outstanding Balance |  | 0 | 0 | 0 | 0
Commercial [Member] | Other [Member] | Combination [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Post-Modification Outstanding Balance |  | $ 0 | $ 0 | $ 0 | $ 0
Residential [Member] | Construction [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Defaulted restructured loans, number of loans | Loan |  | 0 |  | 1 |
Defaulted restructured loans, recorded investment |  | $ 0 |  | $ 290 |
Residential [Member] | Real Estate [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Number of Loans | Loan |  |  | 1 | 1 | 3
Post-Modification Outstanding Balance |  |  | $ 280 | $ 290 | $ 848
Residential [Member] | Real Estate [Member] | Term Modification [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Post-Modification Outstanding Balance |  |  | 0 | 0 | 0
Residential [Member] | Real Estate [Member] | Rate Modification [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Post-Modification Outstanding Balance |  |  | 0 | 0 | 0
Residential [Member] | Real Estate [Member] | Combination [Member] |  |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Post-Modification Outstanding Balance |  |  | $ 280 | $ 290 | $ 848

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