LOANS AND ALLOWANCE FOR CREDIT LOSSES - TDR ACCRUAL STATUS (Details) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2020 USD ($) loan	Dec. 31, 2019 USD ($) loan
Troubled Debt Restructurings disclosures
Number of Loans \| loan	2,323	1,828
Recorded Investment \| $	$ 27,736	$ 30,781
Residential Real Estate
Troubled Debt Restructurings disclosures
Number of Loans \| loan	189	194
Recorded Investment \| $	$ 18,342	$ 19,770
Commercial Real Estate
Troubled Debt Restructurings disclosures
Number of Loans \| loan	9	13
Recorded Investment \| $	$ 6,603	$ 8,925
Construction & land development
Troubled Debt Restructurings disclosures
Number of Loans \| loan	1	1
Recorded Investment \| $	$ 53	$ 54
Commercial & industrial
Troubled Debt Restructurings disclosures
Number of Loans \| loan	7	7
Recorded Investment \| $	$ 2,106	$ 1,446
Consumer
Troubled Debt Restructurings disclosures
Number of Loans \| loan	2,117	1,613
Recorded Investment \| $	$ 632	$ 586
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	63	61
Recorded Investment \| $	$ 5,835	$ 9,866
Loans on nonaccrual status \| Residential Real Estate
Troubled Debt Restructurings disclosures
Number of Loans \| loan	57	53
Recorded Investment \| $	$ 4,581	$ 4,402
Loans on nonaccrual status \| Commercial Real Estate
Troubled Debt Restructurings disclosures
Number of Loans \| loan	1	4
Recorded Investment \| $	$ 45	$ 4,040
Loans on nonaccrual status \| Commercial & industrial
Troubled Debt Restructurings disclosures
Number of Loans \| loan	4	4
Recorded Investment \| $	$ 1,199	$ 1,424
Loans on nonaccrual status \| Consumer
Troubled Debt Restructurings disclosures
Number of Loans \| loan	1
Recorded Investment \| $	$ 10
Accrual Loans
Troubled Debt Restructurings disclosures
Number of Loans \| loan	2,260	1,767
Recorded Investment \| $	$ 21,901	$ 20,915
Accrual Loans \| Residential Real Estate
Troubled Debt Restructurings disclosures
Number of Loans \| loan	132	141
Recorded Investment \| $	$ 13,761	$ 15,368
Accrual Loans \| Commercial Real Estate
Troubled Debt Restructurings disclosures
Number of Loans \| loan	8	9
Recorded Investment \| $	$ 6,558	$ 4,885
Accrual Loans \| Construction & land development
Troubled Debt Restructurings disclosures
Number of Loans \| loan	1	1
Recorded Investment \| $	$ 53	$ 54
Accrual Loans \| Commercial & industrial
Troubled Debt Restructurings disclosures
Number of Loans \| loan	3	3
Recorded Investment \| $	$ 907	$ 22
Accrual Loans \| Consumer
Troubled Debt Restructurings disclosures
Number of Loans \| loan	2,116	1,613
Recorded Investment \| $	$ 622	$ 586

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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/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524

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