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Loans and Credit Quality - Past Due Loans and Nonaccrual Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | $ 7,254 | $ 2,643
Nonaccrual | 24,317 | 13,893
Current | 961,657 | 962,913
Total financing receivables | 993,228 | 979,449
Less: Unearned origination fees, net of origination costs | (3,975) | (4,434)
Total loans | 989,253 | 975,015
30-59 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 6,782 | 1,448
Nonaccrual | 0 | 8,750
60-89 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 258 | 739
Nonaccrual | 0 | 0
Greater Than 90 Days Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 214 | 456
Nonaccrual | 6,590 | 4,375
Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 2,112 | 545
Nonaccrual | 22,580 | 13,500
Current | 290,820 | 264,133
Total financing receivables | 315,512 | 278,178
Commercial | 30-59 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 1,640 | 0
Nonaccrual | 0 | 8,750
Commercial | 60-89 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 258 | 141
Nonaccrual | 0 | 0
Commercial | Greater Than 90 Days Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 214 | 404
Nonaccrual | 4,853 | 4,208
Real estate construction one-to-four family |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Nonaccrual | 0 | 0
Current | 27,543 | 26,061
Total financing receivables | 27,543 | 26,061
Real estate construction one-to-four family | 30-59 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Real estate construction one-to-four family | 60-89 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Real estate construction one-to-four family | Greater Than 90 Days Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Real estate construction other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 367 | 0
Nonaccrual | 0 | 0
Current | 83,517 | 72,159
Total financing receivables | 83,884 | 72,159
Real estate construction other | 30-59 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 367 | 0
Real estate construction other | 60-89 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Real estate construction other | Greater Than 90 Days Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Real estate term owner occupied |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 4,426 | 887
Nonaccrual | 1,331 | 29
Current | 129,296 | 151,262
Total financing receivables | 135,053 | 152,178
Real estate term owner occupied | 30-59 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 4,426 | 887
Nonaccrual | 0 | 0
Real estate term owner occupied | 60-89 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Nonaccrual | 0 | 0
Real estate term owner occupied | Greater Than 90 Days Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Nonaccrual | 1,331 | 0
Real estate term non-owner occupied |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Nonaccrual | 0 | 197
Current | 344,968 | 356,404
Total financing receivables | 344,968 | 356,601
Real estate term non-owner occupied | 30-59 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Nonaccrual |  | 0
Real estate term non-owner occupied | 60-89 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Nonaccrual |  | 0
Real estate term non-owner occupied | Greater Than 90 Days Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Nonaccrual |  | 0
Real estate term other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Nonaccrual | 0 | 0
Current | 41,326 | 45,402
Total financing receivables | 41,326 | 45,402
Real estate term other | 30-59 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Real estate term other | 60-89 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Real estate term other | Greater Than 90 Days Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Consumer secured by 1st deeds of trust |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 4 | 908
Nonaccrual | 380 | 167
Current | 22,949 | 22,514
Total financing receivables | 23,333 | 23,589
Consumer secured by 1st deeds of trust | 30-59 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 4 | 390
Nonaccrual | 0 | 0
Consumer secured by 1st deeds of trust | 60-89 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 518
Nonaccrual | 0 | 0
Consumer secured by 1st deeds of trust | Greater Than 90 Days Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Nonaccrual | 380 | 167
Consumer other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 345 | 303
Nonaccrual | 26 | 0
Current | 21,238 | 24,978
Total financing receivables | 21,609 | 25,281
Consumer other | 30-59 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 345 | 171
Nonaccrual | 0 |
Consumer other | 60-89 Days Past Due Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 80
Nonaccrual | 0 |
Consumer other | Greater Than 90 Days Still Accruing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | $ 52
Nonaccrual | $ 26 |

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