FAIR VALUE, Asset Quantitative Information (Details) $ in Thousands	Sep. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans	$ 8,300	$ 7,882
Other real estate owned	806	2,641
Multifamily Real Estate [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans	$ 1,900	$ 1,910
Multifamily Real Estate [Member] | Sales Comparison [Member] | Minimum [Member] | Adjustment for Estimated Realizable Value [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs	0.467	0.460
Multifamily Real Estate [Member] | Sales Comparison [Member] | Maximum [Member] | Adjustment for Estimated Realizable Value [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs	0.467	0.467
Multifamily Real Estate [Member] | Sales Comparison [Member] | Weighted Average [Member] | Adjustment for Estimated Realizable Value [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs	0.467	0.464
Residential Real Estate [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Other real estate owned	$ 281	$ 352
Other real estate owned, valuation technique [Extensible List]	us-gaap:MarketApproachValuationTechniqueMember	us-gaap:MarketApproachValuationTechniqueMember
Other real estate owned, measurement input [Extensible List]	us-gaap:MeasurementInputComparabilityAdjustmentMember	us-gaap:MeasurementInputComparabilityAdjustmentMember
Residential Real Estate [Member] | Minimum [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Other real estate owned, unobservable inputs	0.110	0.088
Residential Real Estate [Member] | Maximum [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Other real estate owned, unobservable inputs	0.192	0.502
Residential Real Estate [Member] | Weighted Average [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Other real estate owned, unobservable inputs	0.142	0.200
Commercial Real Estate [Member] | Owner Occupied [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans	$ 469	$ 568
Other real estate owned	$ 175	$ 175
Other real estate owned, valuation technique [Extensible List]	us-gaap:MarketApproachValuationTechniqueMember	us-gaap:MarketApproachValuationTechniqueMember
Other real estate owned, measurement input [Extensible List]	us-gaap:MeasurementInputComparabilityAdjustmentMember	us-gaap:MeasurementInputComparabilityAdjustmentMember
Commercial Real Estate [Member] | Owner Occupied [Member] | Minimum [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Other real estate owned, unobservable inputs	0.218	0.218
Commercial Real Estate [Member] | Owner Occupied [Member] | Maximum [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Other real estate owned, unobservable inputs	0.218	0.218
Commercial Real Estate [Member] | Owner Occupied [Member] | Weighted Average [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Other real estate owned, unobservable inputs	0.218	0.218
Commercial Real Estate [Member] | Owner Occupied [Member] | Sales Comparison [Member] | Minimum [Member] | Adjustment for Estimated Realizable Value [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs	0.369	0.231
Commercial Real Estate [Member] | Owner Occupied [Member] | Sales Comparison [Member] | Maximum [Member] | Adjustment for Estimated Realizable Value [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs	0.369	0.231
Commercial Real Estate [Member] | Owner Occupied [Member] | Sales Comparison [Member] | Weighted Average [Member] | Adjustment for Estimated Realizable Value [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs	0.369	0.231
Commercial Real Estate [Member] | Non-Owner Occupied [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans	$ 3,137	$ 1,984
Other real estate owned	$ 200	$ 200
Other real estate owned, valuation technique [Extensible List]	us-gaap:MarketApproachValuationTechniqueMember	us-gaap:MarketApproachValuationTechniqueMember
Other real estate owned, measurement input [Extensible List]	us-gaap:MeasurementInputComparabilityAdjustmentMember	us-gaap:MeasurementInputComparabilityAdjustmentMember
Commercial Real Estate [Member] | Non-Owner Occupied [Member] | Minimum [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Other real estate owned, unobservable inputs	0.589	0.589
Commercial Real Estate [Member] | Non-Owner Occupied [Member] | Maximum [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Other real estate owned, unobservable inputs	0.589	0.589
Commercial Real Estate [Member] | Non-Owner Occupied [Member] | Weighted Average [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Other real estate owned, unobservable inputs	0.589	0.589
Commercial Real Estate [Member] | Non-Owner Occupied [Member] | Income Approach [Member] | Minimum [Member] | Adjustment for Differences in Net Operating Income Expectations [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs	0.659	0.674
Commercial Real Estate [Member] | Non-Owner Occupied [Member] | Income Approach [Member] | Maximum [Member] | Adjustment for Differences in Net Operating Income Expectations [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs	0.936	0.674
Commercial Real Estate [Member] | Non-Owner Occupied [Member] | Income Approach [Member] | Weighted Average [Member] | Adjustment for Differences in Net Operating Income Expectations [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs	0.705	0.674
Commercial and Industrial [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans	$ 144	$ 111
Commercial and Industrial [Member] | Sales Comparison [Member] | Minimum [Member] | Adjustment for Estimated Realizable Value [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs		0.080
Commercial and Industrial [Member] | Sales Comparison [Member] | Maximum [Member] | Adjustment for Estimated Realizable Value [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs		0.711
Commercial and Industrial [Member] | Sales Comparison [Member] | Weighted Average [Member] | Adjustment for Estimated Realizable Value [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs		0.642
Commercial and Industrial [Member] | Discounted Cash Flows [Member] | Minimum [Member] | Recovery Probability [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs
Commercial and Industrial [Member] | Discounted Cash Flows [Member] | Maximum [Member] | Recovery Probability [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs
Commercial and Industrial [Member] | Discounted Cash Flows [Member] | Weighted Average [Member] | Recovery Probability [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs
Construction and Land [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans	$ 2,650	$ 3,309
Other real estate owned	$ 150	$ 1,914
Other real estate owned, valuation technique [Extensible List]	us-gaap:MarketApproachValuationTechniqueMember	us-gaap:MarketApproachValuationTechniqueMember
Other real estate owned, measurement input [Extensible List]	us-gaap:MeasurementInputComparabilityAdjustmentMember	us-gaap:MeasurementInputComparabilityAdjustmentMember
Construction and Land [Member] | Minimum [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Other real estate owned, unobservable inputs	0.503	0.252
Construction and Land [Member] | Maximum [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Other real estate owned, unobservable inputs	0.503	0.690
Construction and Land [Member] | Weighted Average [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Other real estate owned, unobservable inputs	0.503	0.278
Construction and Land [Member] | Sales Comparison [Member] | Minimum [Member] | Adjustment for Percentage of Completion of Construction [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs	0.423	0.277
Construction and Land [Member] | Sales Comparison [Member] | Maximum [Member] | Adjustment for Percentage of Completion of Construction [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs	0.423	0.277
Construction and Land [Member] | Sales Comparison [Member] | Weighted Average [Member] | Adjustment for Percentage of Completion of Construction [Member]
Significant Unobservable Inputs Related to Assets and Liabilities Measured at Fair Value [Abstract]
Impaired loans, unobservable inputs	0.423	0.277