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ACQUISITIONS - Narrative (Details) $ in Thousands |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Aug. 06, 2016 USD ($) | Apr. 10, 2015 USD ($) shareholder shares | Mar. 27, 2015 USD ($) shareholder shares | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |
Goodwill |  |  |  | $ 18,742 | $ 18,742 | $ 18,601
Goodwill expected to be deducted |  |  |  | 141 |  |
Gross contractual balance of loans receivable |  |  |  | 1,359,544 | 1,243,925 | 1,067,377
DCB |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Percentage of shares acquired |  |  | 100.00% |  |  |
Total consideration |  |  | $ 29,681 |  |  |
Number of shareholders in transaction | shareholder |  |  | 68 |  |  |
Shares issued (shares) | shares |  |  | 923,133 |  |  |
Shares of acquired company exchanged (shares) | shares |  |  | 1,378,345 |  |  |
Acquisition related costs |  |  |  |  |  | 403
Assets acquired |  |  | $ 130,170 |  |  |
Premises and equipment |  |  | 199 |  |  |
Cash |  |  | 5,794 |  |  |
Core deposit intangible |  |  | 968 |  |  |
Goodwill |  |  | 8,670 | 8,670 |  |
Consideration paid |  |  |  | 0 | 0 | 2,308
Fair value of performing loans |  |  | 118,154 |  |  |
Gross contractual balance of loans receivable |  |  | $ 119,543 |  |  |
TLB |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Percentage of shares acquired |  | 100.00% |  |  |  |
Total consideration |  | $ 14,215 |  |  |  |
Number of shareholders in transaction | shareholder |  | 124 |  |  |  |
Shares issued (shares) | shares |  | 280,160 |  |  |  |
Shares of acquired company exchanged (shares) | shares |  | 594,779 |  |  |  |
Acquisition related costs |  |  |  |  |  | 239
Assets acquired |  | $ 76,415 |  |  |  |
Premises and equipment |  | 2,664 |  |  |  |
Cash |  | 8,124 |  |  |  |
Core deposit intangible |  | 534 |  |  |  |
Goodwill |  | 3,815 |  | 3,815 |  |
Fair value of performing loans |  | 43,568 |  |  |  |
Gross contractual balance of loans receivable |  | $ 44,036 |  |  |  |
Denton, Texas Branch Location |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquisition related costs |  |  |  |  | 41 |
Assets acquired | $ 4,659 |  |  |  |  |
Premises and equipment | 2,075 |  |  |  |  |
Cash | 2,399 |  |  |  |  |
Core deposit intangible | 42 |  |  |  |  |
Goodwill | 141 |  |  | 140 |  |
Loans acquired | 2 |  |  |  |  |
Non-interest bearing deposits assumed | 581 |  |  |  |  |
Interest bearing deposits assumed | 4,047 |  |  |  |  |
Other liabilities assumed | 30 |  |  |  |  |
Consideration paid | 66 |  |  | $ 0 | (2,399) | $ 0
Fair value of performing loans | 2 |  |  |  |  |
Gross contractual balance of loans receivable | $ 2 |  |  |  | $ 2 |

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