FAIR VALUE MEASUREMENT AND DISCLOSURE (Schedule of Valuation Methodology and Unobservable Inputs) (Details) - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2017	Dec. 31, 2016
Impaired Loans Partially Charged Off
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 166	$ 166
Impaired Loans Partially Charged Off \| Market Approach Valuation Technique \| Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	0.00%	0.00%
Estimated selling cost	0.00%	0.00%
Impaired Loans Partially Charged Off \| Market Approach Valuation Technique \| Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	50.00%	0.00%
Estimated selling cost	10.00%	10.00%
Impaired Loans Partially Charged Off \| Market Approach Valuation Technique \| Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	9.00%	0.00%
Estimated selling cost	3.00%	5.00%
Impaired Loans Specifically Reserved
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 3,110	$ 344
Impaired Loans Specifically Reserved \| Market Approach Valuation Technique \| Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	0.00%	0.00%
Estimated selling cost	10.00%	10.00%
Impaired Loans Specifically Reserved \| Market Approach Valuation Technique \| Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	0.00%	50.00%
Estimated selling cost	10.00%	28.00%
Impaired Loans Specifically Reserved \| Market Approach Valuation Technique \| Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	0.00%	13.00%
Estimated selling cost	10.00%	12.00%
Servicing Contracts [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 330	$ 1,090
Servicing Contracts [Member] \| Market Approach Valuation Technique \| Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	7.00%	8.00%
Fair Value Inputs, Prepayment Rate	14.00%	15.00%
Servicing Contracts [Member] \| Market Approach Valuation Technique \| Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	7.00%	8.00%
Fair Value Inputs, Prepayment Rate	14.00%	15.00%
Servicing Contracts [Member] \| Market Approach Valuation Technique \| Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	7.00%	8.00%
Fair Value Inputs, Prepayment Rate	14.00%	15.00%
Other real estate owned
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 341	$ 922
Other real estate owned \| Market Approach Valuation Technique \| Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	0.00%	0.00%
Estimated selling cost	10.00%	10.00%
Other real estate owned \| Market Approach Valuation Technique \| Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	0.00%	73.00%
Estimated selling cost	10.00%	10.00%
Other real estate owned \| Market Approach Valuation Technique \| Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	0.00%	7.00%
Estimated selling cost	10.00%	10.00%

Fair Value Inputs, Estimated Selling Cost

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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- Definition

Rate at which loans or a loan portfolio are expected to prepay principal balances, used as an input to measure fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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