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Loans - Schedule of Loan Portfolio Summarized by the Past Due Status (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016 | Sep. 30, 2016
--- | --- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | $ 7,658 | $ 8,292 |
Current | 1,228,712 | 899,618 |
Total Loans Receivable | 1,236,370 | 907,910 | $ 872,023
Loans Receivable greater than 90 Days and Accruing | 1,626 | 1,345 |
30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1,633 | 3,558 |
60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 865 | 1,435 |
Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 5,160 | 3,299 |
Commercial and industrial |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1,826 | 1,205 |
Current | 167,211 | 139,139 |
Total Loans Receivable | 169,037 | 140,344 | 122,926
Loans Receivable greater than 90 Days and Accruing | 6 | 0 |
Commercial and industrial | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 75 | 26 |
Commercial and industrial | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 2 | 1 |
Commercial and industrial | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1,749 | 1,178 |
Commercial real estate |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1,313 | 999 |
Current | 482,360 | 317,981 |
Total Loans Receivable | 483,673 | 318,980 | 309,161
Loans Receivable greater than 90 Days and Accruing | 0 | 0 |
Commercial real estate | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 | 325 |
Commercial real estate | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 | 674 |
Commercial real estate | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1,313 | 0 |
Commercial real estate construction |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 408 | 300 |
Current | 39,371 | 14,971 |
Total Loans Receivable | 39,779 | 15,271 | 13,243
Loans Receivable greater than 90 Days and Accruing | 0 | 0 |
Commercial real estate construction | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 76 | 0 |
Commercial real estate construction | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 332 | 0 |
Commercial real estate construction | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 | 300 |
Residential mortgage |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 3,175 | 4,936 |
Current | 418,557 | 343,603 |
Total Loans Receivable | 421,732 | 348,539 | 346,422
Loans Receivable greater than 90 Days and Accruing | 1,524 | 937 |
Residential mortgage | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 695 | 2,866 |
Residential mortgage | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 478 | 657 |
Residential mortgage | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 2,002 | 1,413 |
Home equity lines of credit |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 856 | 774 |
Current | 104,257 | 69,298 |
Total Loans Receivable | 105,113 | 70,072 | 65,689
Loans Receivable greater than 90 Days and Accruing | 96 | 408 |
Home equity lines of credit | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 710 | 310 |
Home equity lines of credit | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 50 | 56 |
Home equity lines of credit | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 96 | 408 |
Consumer |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 80 | 78 |
Current | 16,956 | 14,626 |
Total Loans Receivable | 17,036 | 14,704 | $ 14,582
Loans Receivable greater than 90 Days and Accruing | 0 | 0 |
Consumer | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 77 | 31 |
Consumer | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 3 | 47 |
Consumer | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 | $ 0 |
Originated Loans |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 6,526 |  |
Current | 978,371 |  |
Total Loans Receivable | 984,897 |  |
Loans Receivable greater than 90 Days and Accruing | 1,601 |  |
Originated Loans | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 642 |  |
Originated Loans | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 749 |  |
Originated Loans | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 5,135 |  |
Originated Loans | Commercial and industrial |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1,825 |  |
Current | 160,832 |  |
Total Loans Receivable | 162,657 |  |
Loans Receivable greater than 90 Days and Accruing | 6 |  |
Originated Loans | Commercial and industrial | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 75 |  |
Originated Loans | Commercial and industrial | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1 |  |
Originated Loans | Commercial and industrial | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1,749 |  |
Originated Loans | Commercial real estate |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1,313 |  |
Current | 339,608 |  |
Total Loans Receivable | 340,921 |  |
Loans Receivable greater than 90 Days and Accruing | 0 |  |
Originated Loans | Commercial real estate | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 |  |
Originated Loans | Commercial real estate | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 |  |
Originated Loans | Commercial real estate | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1,313 |  |
Originated Loans | Commercial real estate construction |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 332 |  |
Current | 31,969 |  |
Total Loans Receivable | 32,301 |  |
Loans Receivable greater than 90 Days and Accruing | 0 |  |
Originated Loans | Commercial real estate construction | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 |  |
Originated Loans | Commercial real estate construction | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 332 |  |
Originated Loans | Commercial real estate construction | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 |  |
Originated Loans | Residential mortgage |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 2,737 |  |
Current | 353,940 |  |
Total Loans Receivable | 356,677 |  |
Loans Receivable greater than 90 Days and Accruing | 1,499 |  |
Originated Loans | Residential mortgage | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 397 |  |
Originated Loans | Residential mortgage | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 363 |  |
Originated Loans | Residential mortgage | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1,977 |  |
Originated Loans | Home equity lines of credit |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 251 |  |
Current | 77,677 |  |
Total Loans Receivable | 77,928 |  |
Loans Receivable greater than 90 Days and Accruing | 96 |  |
Originated Loans | Home equity lines of credit | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 105 |  |
Originated Loans | Home equity lines of credit | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 50 |  |
Originated Loans | Home equity lines of credit | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 96 |  |
Originated Loans | Consumer |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 68 |  |
Current | 14,345 |  |
Total Loans Receivable | 14,413 |  |
Loans Receivable greater than 90 Days and Accruing | 0 |  |
Originated Loans | Consumer | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 65 |  |
Originated Loans | Consumer | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 3 |  |
Originated Loans | Consumer | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 |  |
Acquired Loans |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1,132 |  |
Current | 250,341 |  |
Total Loans Receivable | 251,473 |  |
Loans Receivable greater than 90 Days and Accruing | 25 |  |
Acquired Loans | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 991 |  |
Acquired Loans | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 116 |  |
Acquired Loans | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 25 |  |
Acquired Loans | Commercial and industrial |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1 |  |
Current | 6,379 |  |
Total Loans Receivable | 6,380 |  |
Loans Receivable greater than 90 Days and Accruing | 0 |  |
Acquired Loans | Commercial and industrial | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 |  |
Acquired Loans | Commercial and industrial | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1 |  |
Acquired Loans | Commercial and industrial | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 |  |
Acquired Loans | Commercial real estate |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 |  |
Current | 142,752 |  |
Total Loans Receivable | 142,752 |  |
Loans Receivable greater than 90 Days and Accruing | 0 |  |
Acquired Loans | Commercial real estate | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 |  |
Acquired Loans | Commercial real estate | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 |  |
Acquired Loans | Commercial real estate | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 |  |
Acquired Loans | Commercial real estate construction |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 76 |  |
Current | 7,402 |  |
Total Loans Receivable | 7,478 |  |
Loans Receivable greater than 90 Days and Accruing | 0 |  |
Acquired Loans | Commercial real estate construction | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 76 |  |
Acquired Loans | Commercial real estate construction | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 |  |
Acquired Loans | Commercial real estate construction | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 |  |
Acquired Loans | Residential mortgage |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 438 |  |
Current | 64,617 |  |
Total Loans Receivable | 65,055 |  |
Loans Receivable greater than 90 Days and Accruing | 25 |  |
Acquired Loans | Residential mortgage | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 298 |  |
Acquired Loans | Residential mortgage | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 115 |  |
Acquired Loans | Residential mortgage | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 25 |  |
Acquired Loans | Home equity lines of credit |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 605 |  |
Current | 26,580 |  |
Total Loans Receivable | 27,185 |  |
Loans Receivable greater than 90 Days and Accruing | 0 |  |
Acquired Loans | Home equity lines of credit | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 605 |  |
Acquired Loans | Home equity lines of credit | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 |  |
Acquired Loans | Home equity lines of credit | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 |  |
Acquired Loans | Consumer |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 12 |  |
Current | 2,611 |  |
Total Loans Receivable | 2,623 |  |
Loans Receivable greater than 90 Days and Accruing | 0 |  |
Acquired Loans | Consumer | 30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 12 |  |
Acquired Loans | Consumer | 60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 0 |  |
Acquired Loans | Consumer | Greater than 90 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | $ 0 |  |

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- Definition Recorded investment in financing receivables that are 90 days or more past due and still accruing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524 + Details
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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 + Details
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