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LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of Payment Status of Loans (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016 | Jun. 30, 2016
--- | --- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | $ 8,031 | $ 11,700 |
Current Loans | 1,288,812 | 1,233,435 |
Ending balance | 1,296,843 | 1,245,135 | $ 1,185,161
Recorded Investment 90 Days and Accruing | 0 | 0 |
30 to 59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 5,107 | 7,346 |
60 to 89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 1,063 | 1,220 |
90 Days and Greater Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 1,861 | 3,134 |
Commercial and industrial |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 761 | 1,071 |
Current Loans | 216,736 | 222,926 |
Ending balance | 217,497 | 223,997 | 218,397
Recorded Investment 90 Days and Accruing | 0 | 0 |
Commercial and industrial | 30 to 59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 168 | 941 |
Commercial and industrial | 60 to 89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 142 | 105 |
Commercial and industrial | 90 Days and Greater Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 451 | 25 |
Construction and development |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 135 | 1,898 |
Current Loans | 177,465 | 127,468 |
Ending balance | 177,600 | 129,366 | 108,698
Recorded Investment 90 Days and Accruing | 0 | 0 |
Construction and development | 30 to 59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 135 | 73 |
Construction and development | 60 to 89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 0 | 0 |
Construction and development | 90 Days and Greater Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 0 | 1,825 |
Commercial real estate |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 693 | 1,795 |
Current Loans | 378,029 | 365,861 |
Ending balance | 378,722 | 367,656 | 347,432
Recorded Investment 90 Days and Accruing | 0 | 0 |
Commercial real estate | 30 to 59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 677 | 1,629 |
Commercial real estate | 60 to 89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 16 | 32 |
Commercial real estate | 90 Days and Greater Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 0 | 134 |
Farmland |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 267 | 133 |
Current Loans | 63,572 | 62,229 |
Ending balance | 63,839 | 62,362 | 66,174
Recorded Investment 90 Days and Accruing | 0 | 0 |
Farmland | 30 to 59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 145 | 100 |
Farmland | 60 to 89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 122 | 26 |
Farmland | 90 Days and Greater Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 0 | 7 |
1-4 family residential |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 4,843 | 5,568 |
Current Loans | 351,614 | 357,384 |
Ending balance | 356,457 | 362,952 | 334,569
Recorded Investment 90 Days and Accruing | 0 | 0 |
1-4 family residential | 30 to 59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 3,107 | 3,724 |
1-4 family residential | 60 to 89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 644 | 803 |
1-4 family residential | 90 Days and Greater Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 1,092 | 1,041 |
Multi-family residential |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 192 | 256 |
Current Loans | 28,641 | 25,823 |
Ending balance | 28,833 | 26,079 | 36,860
Recorded Investment 90 Days and Accruing | 0 | 0 |
Multi-family residential | 30 to 59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 0 | 207 |
Multi-family residential | 60 to 89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 0 | 49 |
Multi-family residential | 90 Days and Greater Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 192 | 0 |
Consumer |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 796 | 905 |
Current Loans | 50,881 | 52,600 |
Ending balance | 51,677 | 53,505 | 53,027
Recorded Investment 90 Days and Accruing | 0 | 0 |
Consumer | 30 to 59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 531 | 613 |
Consumer | 60 to 89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 139 | 205 |
Consumer | 90 Days and Greater Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 126 | 87 |
Agricultural |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 344 | 74 |
Current Loans | 21,510 | 18,827 |
Ending balance | 21,854 | 18,901 | 19,444
Recorded Investment 90 Days and Accruing | 0 | 0 |
Agricultural | 30 to 59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 344 | 59 |
Agricultural | 60 to 89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 0 | 0 |
Agricultural | 90 Days and Greater Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 0 | 15 |
Overdrafts |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 0 | 0 |
Current Loans | 364 | 317 |
Ending balance | 364 | 317 | $ 560
Recorded Investment 90 Days and Accruing | 0 | 0 |
Overdrafts | 30 to 59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 0 | 0 |
Overdrafts | 60 to 89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | 0 | 0 |
Overdrafts | 90 Days and Greater Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due Loans | $ 0 | $ 0 |

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