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PREMISES AND EQUIPMENT (Details) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2017 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
PREMISES AND EQUIPMENT |  |  |  |
Premises and equipment |  | $ 80,219,000 | $ 82,076,000 |
Less accumulated depreciation and amortization |  | (26,612,000) | (24,562,000) |
Premises and equipment, net |  | 53,607,000 | 57,514,000 |
Depreciation |  | 3,353,000 | 3,259,000 | $ 3,643,000
Net gains and losses on sale of assets |  | 742,000 | 1,300,000 | $ 20,000
Legal Matter Related To Branch Office |  |  |  |
PREMISES AND EQUIPMENT |  |  |  |
Net gains and losses on sale of assets | $ 554,000 |  |  |
Disposed by sale | Huffman Branch |  |  |  |
PREMISES AND EQUIPMENT |  |  |  |
Value of premises and equipment sold | 1,400,000 |  |  |
Deposits held at bank | 15,000,000 |  |  |
Gain on sale of business | 28,000 |  |  |
Disposed by sale | Deweyville Branch |  |  |  |
PREMISES AND EQUIPMENT |  |  |  |
Deposits held at bank |  | 4,700,000 |  |
Loans held at bank |  | 50,000 |  |
Gain on sale of business | $ 97,000 |  |  |
Disposed by sale | Washington Branch |  |  |  |
PREMISES AND EQUIPMENT |  |  |  |
Net gains and losses on sale of assets |  |  | $ 1,500,000 |
Lease period |  |  | 10 years |
Land |  |  |  |
PREMISES AND EQUIPMENT |  |  |  |
Premises and equipment |  | 13,466,000 | $ 14,686,000 |
Land | Disposed by sale | Washington Branch |  |  |  |
PREMISES AND EQUIPMENT |  |  |  |
Value of premises and equipment sold |  |  | 1,000,000 |
Buildings and leasehold improvements |  |  |  |
PREMISES AND EQUIPMENT |  |  |  |
Premises and equipment |  | 51,664,000 | 52,230,000 |
Buildings | Disposed by sale | Washington Branch |  |  |  |
PREMISES AND EQUIPMENT |  |  |  |
Value of premises and equipment sold |  |  | 963,000 |
Furniture and equipment |  |  |  |
PREMISES AND EQUIPMENT |  |  |  |
Premises and equipment |  | 14,887,000 | 14,814,000 |
Vehicles |  |  |  |
PREMISES AND EQUIPMENT |  |  |  |
Premises and equipment |  | $ 202,000 | 202,000 |
Construction in progress |  |  |  |
PREMISES AND EQUIPMENT |  |  |  |
Premises and equipment |  |  | $ 144,000 |

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