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Loans and Allowance for Loan Losses - Credit Quality (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | $ 2,107,991 | $ 1,843,286
Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 2,107,991 | 1,843,286
Pass | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 2,009,279 | 1,759,961
Special Mention | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 87,713 | 73,391
Substandard | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 10,999 | 9,934
Commercial loans | Commercial and industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 512,973 | 246,687
Commercial loans | Commercial and industrial | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 512,973 | 246,687
Commercial loans | Commercial and industrial | Pass | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 484,305 | 209,213
Commercial loans | Commercial and industrial | Special Mention | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 28,544 | 37,065
Commercial loans | Commercial and industrial | Substandard | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 124 | 409
Commercial real estate loans | Commercial real estate, owner-occupied |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 299,754 | 308,824
Commercial real estate loans | Commercial real estate, owner-occupied | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 299,754 | 308,824
Commercial real estate loans | Commercial real estate, owner-occupied | Pass | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 251,741 | 264,766
Commercial real estate loans | Commercial real estate, owner-occupied | Special Mention | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 41,010 | 35,016
Commercial real estate loans | Commercial real estate, owner-occupied | Substandard | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 7,003 | 9,042
Commercial real estate loans | Commercial real estate, investor-owned |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 966,517 | 946,317
Commercial real estate loans | Commercial real estate, investor-owned | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 966,517 | 946,317
Commercial real estate loans | Commercial real estate, investor-owned | Pass | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 946,166 | 945,757
Commercial real estate loans | Commercial real estate, investor-owned | Special Mention | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 17,359 | 560
Commercial real estate loans | Commercial real estate, investor-owned | Substandard | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 2,992 | 0
Commercial real estate loans | Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 66,663 | 61,095
Commercial real estate loans | Construction | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 66,663 | 61,095
Commercial real estate loans | Construction | Pass | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 66,663 | 61,095
Commercial real estate loans | Construction | Special Mention | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
Commercial real estate loans | Construction | Substandard | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
Residential loans | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 107,364 | 116,024
Residential loans | Home equity | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 107,364 | 116,024
Residential loans | Home equity | Pass | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 105,824 | 114,935
Residential loans | Home equity | Special Mention | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 800 | 750
Residential loans | Home equity | Substandard | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 740 | 339
Residential loans | Other residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 130,915 | 136,657
Residential loans | Other residential | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 130,915 | 136,657
Residential loans | Other residential | Pass | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 130,915 | 136,657
Residential loans | Other residential | Special Mention | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
Residential loans | Other residential | Substandard | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
Consumer loans | Installment and other consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 23,805 | 27,682
Consumer loans | Installment and other consumer | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 23,805 | 27,682
Consumer loans | Installment and other consumer | Pass | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 23,665 | 27,538
Consumer loans | Installment and other consumer | Special Mention | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | 0 | 0
Consumer loans | Installment and other consumer | Substandard | Financial asset acquired and no credit deterioration |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total loans | $ 140 | $ 144

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