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FAIR VALUE - Schedule of Quantitative Information About Nonrecurring Level 3 Fair Value Measurements (Details) $ in Thousands	Sep. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)
Assets at fair value on a nonrecurring basis | Significant Other Unobservable Inputs (Level 3) | Impaired loans | Fair value of collateral - sales comparison approach
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 11,372	$ 6,206
Assets at fair value on a nonrecurring basis | Significant Other Unobservable Inputs (Level 3) | Other real estate owned | Appraisal value of collateral
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 1,783	$ 2,244
Discount rate | Other real estate owned | Appraisal value of collateral | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned - discount rate (percent)	0.10	0.10
Discount rate | Other real estate owned | Appraisal value of collateral | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned - discount rate (percent)	0.20	0.20
Discount rate | Other real estate owned | Appraisal value of collateral | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned - discount rate (percent)	0.16	0.16
Discount rate | Real Estate | Impaired loans | Fair value of collateral - sales comparison approach | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans- discount rate (percent)	0.10	0.10
Discount rate | Real Estate | Impaired loans | Fair value of collateral - sales comparison approach | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans- discount rate (percent)	0.20	0.20
Discount rate | Real Estate | Impaired loans | Fair value of collateral - sales comparison approach | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans- discount rate (percent)	0.16	0.16
Discount rate | Equipment | Impaired loans | Fair value of collateral - sales comparison approach | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans- discount rate (percent)	0.10	0.10
Discount rate | Equipment | Impaired loans | Fair value of collateral - sales comparison approach | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans- discount rate (percent)	0.20	0.20
Discount rate | Equipment | Impaired loans | Fair value of collateral - sales comparison approach | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans- discount rate (percent)	0.199	0.036

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+ References

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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
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- Definition

Value of input used to measure real estate owned by financial institution by financial institution which is not directly related to its business.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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