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Loans and Allowance for Loan Losses - Credit Quality Indicators by Portfolio Class (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | $ 1,970,974 | $ 1,848,784
Pass |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 1,868,353 | 1,744,392
Watch |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 64,763 | 65,807
Substandard |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 37,858 | 38,585
Commercial and Industrial |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 423,704 | 386,233
Commercial and Industrial | Pass |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 382,189 | 351,046
Commercial and Industrial | Watch |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 39,404 | 31,074
Commercial and Industrial | Substandard |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 2,111 | 4,113
Construction |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 282,727 | 245,905
Construction | Pass |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 275,094 | 236,588
Construction | Watch |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 2,701 | 4,612
Construction | Substandard |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 4,932 | 4,705
Residential Real Estate | 1-to-4 Family Mortgage |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 307,152 | 294,924
Residential Real Estate | Residential Line of Credit |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 177,783 | 177,190
Residential Real Estate | Multi-Family Mortgage |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 52,810 | 44,977
Residential Real Estate | Pass | 1-to-4 Family Mortgage |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 291,280 | 277,948
Residential Real Estate | Pass | Residential Line of Credit |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 174,178 | 173,011
Residential Real Estate | Pass | Multi-Family Mortgage |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 51,642 | 43,770
Residential Real Estate | Watch | 1-to-4 Family Mortgage |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 5,135 | 6,945
Residential Real Estate | Watch | Residential Line of Credit |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 1,424 | 1,875
Residential Real Estate | Watch | Multi-Family Mortgage |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 143 | 152
Residential Real Estate | Substandard | 1-to-4 Family Mortgage |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 10,737 | 10,031
Residential Real Estate | Substandard | Residential Line of Credit |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 2,181 | 2,304
Residential Real Estate | Substandard | Multi-Family Mortgage |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 1,025 | 1,055
Commercial Real Estate | Owner Occupied |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 371,462 | 357,346
Commercial Real Estate | Non-Owner Occupied |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 273,285 | 267,902
Commercial Real Estate | Pass | Owner Occupied |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 353,275 | 338,698
Commercial Real Estate | Pass | Non-Owner Occupied |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 259,588 | 249,877
Commercial Real Estate | Watch | Owner Occupied |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 9,293 | 10,459
Commercial Real Estate | Watch | Non-Owner Occupied |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 6,216 | 10,273
Commercial Real Estate | Substandard | Owner Occupied |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 8,894 | 8,189
Commercial Real Estate | Substandard | Non-Owner Occupied |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 7,481 | 7,752
Consumer and Other |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 82,051 | 74,307
Consumer and Other | Pass |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 81,107 | 73,454
Consumer and Other | Watch |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | 447 | 417
Consumer and Other | Substandard |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Gross loans | $ 497 | $ 436

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