LOANS - Recorded Investment and Number of Modifications (Details) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2018 USD ($) modification	Jun. 30, 2017 USD ($) modification	Jun. 30, 2018 USD ($) modification	Jun. 30, 2017 USD ($) modification
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications (in modification) \| modification	14	5	25	9
Pre-Modification Outstanding Recorded Investment	$ 2,836	$ 395	$ 4,594	$ 1,087
Post-Modification Outstanding Recorded Investment	$ 2,554	$ 393	$ 3,597	$ 1,072
Commercial and industrial \| Commercial installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications (in modification) \| modification	0	0	2	1
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 452	$ 80
Post-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 437	$ 77
Commercial and industrial \| Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications (in modification) \| modification	5	2	7	2
Pre-Modification Outstanding Recorded Investment	$ 1,641	$ 245	$ 1,674	$ 245
Post-Modification Outstanding Recorded Investment	$ 1,390	$ 245	$ 1,409	$ 245
Total Commercial Real Estate \| Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications (in modification) \| modification	0	1	1	1
Pre-Modification Outstanding Recorded Investment	$ 0	$ 19	$ 167	$ 19
Post-Modification Outstanding Recorded Investment	$ 0	$ 18	$ 0	$ 18
Residential Real Estate \| Residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications (in modification) \| modification	7	1	12	3
Pre-Modification Outstanding Recorded Investment	$ 1,091	$ 118	$ 2,196	$ 692
Post-Modification Outstanding Recorded Investment	$ 1,060	$ 117	$ 1,646	$ 682
Consumer \| Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications (in modification) \| modification	1	1	1	1
Pre-Modification Outstanding Recorded Investment	$ 100	$ 13	$ 100	$ 13
Post-Modification Outstanding Recorded Investment	$ 100	$ 13	$ 100	$ 13
Consumer \| Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications (in modification) \| modification	1	0	2	1
Pre-Modification Outstanding Recorded Investment	$ 4	$ 0	$ 5	$ 38
Post-Modification Outstanding Recorded Investment	$ 4	$ 0	$ 5	$ 37

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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=84173941&loc=SL6953676-111524

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