LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES - Major Categories of Loans (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 294,981	$ 271,612
Allowance for loan losses	(2,455)	(2,589)
Loans and leases receivable, total	$ 292,526	$ 269,023
Loans and lease receivable allowances, percentage	100.00%	100.00%
Increase (decrease) in loans and leases receivable	$ 23,500
Percentage of increase (decrease) in loans and leases receivable	8.74%
Consumer
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 14,602	$ 16,112
Loans and lease receivable allowances, percentage	5.00%	6.00%
Increase (decrease) in loans and leases receivable	$ 1,500
Percentage of increase (decrease) in loans and leases receivable	9.37%
Residential Real estate
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 82,705	$ 81,926
Loans and lease receivable allowances, percentage	28.00%	30.00%
Increase (decrease) in loans and leases receivable	$ 800
Percentage of increase (decrease) in loans and leases receivable	0.95%
Indirect
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 110,192	$ 85,186
Loans and lease receivable allowances, percentage	38.00%	32.00%
Increase (decrease) in loans and leases receivable	$ 25,000
Percentage of increase (decrease) in loans and leases receivable	29.36%
Commercial
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 13,266	$ 11,257
Loans and lease receivable allowances, percentage	4.00%	4.00%
Increase (decrease) in loans and leases receivable	$ 2,000
Percentage of increase (decrease) in loans and leases receivable	17.85%
Construction
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 2,677	$ 3,536
Loans and lease receivable allowances, percentage	1.00%	1.00%
Increase (decrease) in loans and leases receivable	$ 900
Percentage of increase (decrease) in loans and leases receivable	24.27%
Commercial Real Estate
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 71,539	$ 73,595
Loans and lease receivable allowances, percentage	24.00%	27.00%
Increase (decrease) in loans and leases receivable	$ 2,000
Percentage of increase (decrease) in loans and leases receivable	(2.79%)

The increase (decrease) during the reporting period in amount of loans and leases receivables.

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The percentage of increase (decrease) in loans and leases receivable.

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The Percentage of Loans and Leases Receivable Allowance.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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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.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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