LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES - TDR ACCRUAL STATUS (Details) $ in Thousands	12 Months Ended
Dec. 31, 2017 USD ($) loan	Dec. 31, 2016 USD ($) loan
Troubled Debt Restructurings disclosures
Number of Loans \| loan	1,097	308
Recorded Investment \| $	$ 34,637	$ 41,586
Residential Real Estate
Troubled Debt Restructurings disclosures
Number of Loans \| loan	245	277
Recorded Investment \| $	$ 25,115	$ 28,753
Consumer
Troubled Debt Restructurings disclosures
Number of Loans \| loan	830
Recorded Investment \| $	$ 637
Commercial Real Estate
Troubled Debt Restructurings disclosures
Number of Loans \| loan	16	23
Recorded Investment \| $	$ 7,865	$ 11,265
Construction & land development
Troubled Debt Restructurings disclosures
Number of Loans \| loan	4	5
Recorded Investment \| $	$ 733	$ 881
Commercial & industrial
Troubled Debt Restructurings disclosures
Number of Loans \| loan	2	3
Recorded Investment \| $	$ 287	$ 687
Loans on nonaccrual status
Troubled Debt Restructurings disclosures
Minimum period for which TDRs continue to be reported as non-performing loans	6 months
Number of Loans \| loan	65	87
Recorded Investment \| $	$ 6,359	$ 9,860
Loans on nonaccrual status \| Residential Real Estate
Troubled Debt Restructurings disclosures
Number of Loans \| loan	62	79
Recorded Investment \| $	$ 4,926	$ 7,199
Loans on nonaccrual status \| Commercial Real Estate
Troubled Debt Restructurings disclosures
Number of Loans \| loan	2	6
Recorded Investment \| $	$ 1,366	$ 2,430
Loans on nonaccrual status \| Construction & land development
Troubled Debt Restructurings disclosures
Number of Loans \| loan	1	1
Recorded Investment \| $	$ 67	$ 77
Loans on nonaccrual status \| Commercial & industrial
Troubled Debt Restructurings disclosures
Number of Loans \| loan		1
Recorded Investment \| $		$ 154
Accrual Loans
Troubled Debt Restructurings disclosures
Number of Loans \| loan	1,032	221
Recorded Investment \| $	$ 28,278	$ 31,726
Accrual Loans \| Residential Real Estate
Troubled Debt Restructurings disclosures
Number of Loans \| loan	183	198
Recorded Investment \| $	$ 20,189	$ 21,554
Accrual Loans \| Consumer
Troubled Debt Restructurings disclosures
Number of Loans \| loan	830
Recorded Investment \| $	$ 637
Accrual Loans \| Commercial Real Estate
Troubled Debt Restructurings disclosures
Number of Loans \| loan	14	17
Recorded Investment \| $	$ 6,499	$ 8,835
Accrual Loans \| Construction & land development
Troubled Debt Restructurings disclosures
Number of Loans \| loan	3	4
Recorded Investment \| $	$ 666	$ 804
Accrual Loans \| Commercial & industrial
Troubled Debt Restructurings disclosures
Number of Loans \| loan	2	2
Recorded Investment \| $	$ 287	$ 533

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+ References

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524

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