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LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES - Total Allowance by Loan Segment (Details) - USD ($) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |
Balance, beginning of year |  |  | $ 2,541,000 | $ 2,589,000 | $ 2,589,000
Charged off |  |  | (435,000) | (769,000) | (1,151,000)
Recoveries |  |  | 149,000 |  | 247,000
Provision for loan losses | $ 30,000 | $ (5,000) | 204,000 | 355,000 | 856,000
Balance, end of year | 2,459,000 |  | 2,459,000 |  | 2,541,000
Individually evaluated for impairment: |  |  |  |  |
Individually evaluated for impairment, Balance in allowance | 216,000 |  | 216,000 |  | 226,000
Individually evaluated for impairment, Related loan balance | 2,424,000 |  | 2,424,000 |  | 2,250,000
Collectively evaluated for impairment: |  |  |  |  |
Collectively evaluated for impairment, Balance in allowance | 2,243,000 |  | 2,243,000 |  | 2,315,000
Collectively evaluated for impairment, Related loan balance | 288,813,000 |  | 288,813,000 |  | 296,870,000
Consumer |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |
Balance, beginning of year |  |  | 161,000 | 214,000 | 214,000
Charged off |  |  | (69,000) |  | (208,000)
Recoveries |  |  | 12,000 |  | 48,000
Provision for loan losses |  |  | 49,000 |  | 107,000
Balance, end of year | 153,000 |  | 153,000 |  | 161,000
Individually evaluated for impairment: |  |  |  |  |
Individually evaluated for impairment, Balance in allowance | 16,000 |  | 16,000 |  | 22,000
Individually evaluated for impairment, Related loan balance | 154,000 |  | 154,000 |  | 138,000
Collectively evaluated for impairment: |  |  |  |  |
Collectively evaluated for impairment, Balance in allowance | 137,000 |  | 137,000 |  | 139,000
Collectively evaluated for impairment, Related loan balance | 12,105,000 |  | 12,105,000 |  | 12,933,000
Residential Real estate |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |
Balance, beginning of year |  |  | 864,000 | 1,061,000 | 1,061,000
Charged off |  |  | (16,000) |  | (589,000)
Recoveries |  |  |  |  | 2,000
Provision for loan losses |  |  | (177,000) |  | 390,000
Balance, end of year | 671,000 |  | 671,000 |  | 864,000
Individually evaluated for impairment: |  |  |  |  |
Individually evaluated for impairment, Related loan balance | 784,000 |  | 784,000 |  | 854,000
Collectively evaluated for impairment: |  |  |  |  |
Collectively evaluated for impairment, Balance in allowance | 671,000 |  | 671,000 |  | 864,000
Collectively evaluated for impairment, Related loan balance | 80,429,000 |  | 80,429,000 |  | 81,783,000
Indirect |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |
Balance, beginning of year |  |  | 988,000 | 774,000 | 774,000
Charged off |  |  | (323,000) |  | (341,000)
Recoveries |  |  | 127,000 |  | 183,000
Provision for loan losses |  |  | 220,000 |  | 372,000
Balance, end of year | 1,012,000 |  | 1,012,000 |  | 988,000
Collectively evaluated for impairment: |  |  |  |  |
Collectively evaluated for impairment, Balance in allowance | 1,012,000 |  | 1,012,000 |  | 988,000
Collectively evaluated for impairment, Related loan balance | 110,716,000 |  | 110,716,000 |  | 116,698,000
Commercial |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |
Balance, beginning of year |  |  | 241,000 | 237,000 | 237,000
Charged off |  |  | (27,000) |  |
Recoveries |  |  | 10,000 |  | 14,000
Provision for loan losses |  |  | 16,000 |  | (10,000)
Balance, end of year | 240,000 |  | 240,000 |  | 241,000
Individually evaluated for impairment: |  |  |  |  |
Individually evaluated for impairment, Balance in allowance | 200,000 |  | 200,000 |  | 204,000
Individually evaluated for impairment, Related loan balance | 284,000 |  | 284,000 |  | 204,000
Collectively evaluated for impairment: |  |  |  |  |
Collectively evaluated for impairment, Balance in allowance | 40,000 |  | 40,000 |  | 37,000
Collectively evaluated for impairment, Related loan balance | 11,781,000 |  | 11,781,000 |  | 14,080,000
Construction |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |
Balance, beginning of year |  |  | 4,000 | 12,000 | 12,000
Provision for loan losses |  |  | 1,000 |  | (8,000)
Balance, end of year | 5,000 |  | 5,000 |  | 4,000
Collectively evaluated for impairment: |  |  |  |  |
Collectively evaluated for impairment, Balance in allowance | 5,000 |  | 5,000 |  | 4,000
Collectively evaluated for impairment, Related loan balance | 2,886,000 |  | 2,886,000 |  | 2,317,000
Commercial Real Estate |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |
Balance, beginning of year |  |  | 283,000 | $ 291,000 | 291,000
Charged off |  |  |  |  | (13,000)
Provision for loan losses |  |  | 95,000 |  | 5,000
Balance, end of year | 378,000 |  | 378,000 |  | 283,000
Individually evaluated for impairment: |  |  |  |  |
Individually evaluated for impairment, Related loan balance | 1,202,000 |  | 1,202,000 |  | 1,054,000
Collectively evaluated for impairment: |  |  |  |  |
Collectively evaluated for impairment, Balance in allowance | 378,000 |  | 378,000 |  | 283,000
Collectively evaluated for impairment, Related loan balance | $ 70,896,000 |  | $ 70,896,000 |  | $ 69,059,000

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