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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative - Other) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($) shares	Sep. 30, 2017 USD ($) shares	Sep. 30, 2018 USD ($) segment shares	Sep. 30, 2017 USD ($) shares	Dec. 31, 2017 USD ($)
Number of operating segments | segment			2
Federal funds sales periods			1 day
Interest-earning deposits maturities period			1 year
Servicing rights			$ 0
Amount of loans serviced	$ 33,100		$ 33,100		$ 20,100
Threshold period for loan			30 days
Threshold for determining nonaccrual status			90 days
Issuance of shares for Employee Stock Purchase Plan, shares | shares	6,704	6,987	22,194	19,820
Antidilutive securities | shares			219,733
Employee Stock [Member]
Number of share purchase rights authorized | shares	150,000		150,000
Percentage of closing market price on purchase date			85.00%
Compensation cost	$ 31	$ 33	$ 143	$ 105
Substandard [Member]
Loan reserve multiple	3.50		3.50		3.50
Special Mention [Member]
Loan reserve multiple	2.25		2.25		2.25
Consumer and Other [Member]
Threshold for determining nonaccrual status			120 days
Small Business Administration Loans [Member]
Loans held for sale	$ 360		$ 360		$ 187
Maximum [Member]
Cash equivalents original maturities period			90 days
Finite-Lived Intangible Asset, Useful Life			15 years
Maximum [Member] | Employee Stock [Member]
Percentage of compensation contributable			15.00%
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life			5 years
Minimum [Member] | Employee Stock [Member]
Percentage of compensation contributable			1.00%

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