LOANS (Troubled debt restructuring) (Details) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019 USD ($) loan	Sep. 30, 2018 USD ($) loan	Sep. 30, 2019 USD ($) loan	Sep. 30, 2018 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	0	1	4	11
Pre- Modification Recorded Investment	$ 0	$ 92	$ 276	$ 2,098
Post- Modification Recorded Investment	$ 0	$ 94	$ 288	$ 1,808
With Payment Defaults
Number of Loans \| loan	0	4	3	10
Recorded Investment	$ 0	$ 418	$ 253	$ 1,598
Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	0	0	0	0
Pre- Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
Post- Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
With Payment Defaults
Number of Loans \| loan	0	0	0	0
Recorded Investment	$ 0	$ 0	$ 0	$ 0
Commercial \| Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	0	0	0	0
Pre- Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
Post- Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
With Payment Defaults
Number of Loans \| loan	0	0	0	0
Recorded Investment	$ 0	$ 0	$ 0	$ 0
Commercial \| Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	0	0	0	0
Pre- Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
Post- Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
With Payment Defaults
Number of Loans \| loan	0	0	0	0
Recorded Investment	$ 0	$ 0	$ 0	$ 0
Agricultural and agricultural real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	0	0	0	0
Pre- Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
Post- Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
With Payment Defaults
Number of Loans \| loan	0	0	0	0
Recorded Investment	$ 0	$ 0	$ 0	$ 0
Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	0	1	4	11
Pre- Modification Recorded Investment	$ 0	$ 92	$ 276	$ 2,098
Post- Modification Recorded Investment	$ 0	$ 94	$ 288	$ 1,808
With Payment Defaults
Number of Loans \| loan	0	4	3	10
Recorded Investment		$ 418	$ 253	$ 1,598
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	0	0	0	0
Pre- Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
Post- Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
With Payment Defaults
Number of Loans \| loan	0	0	0	0
Recorded Investment	$ 0	$ 0	$ 0	$ 0

Financing Receivable, Subsequent Default [Abstract]

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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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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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Amount, after troubled debt restructuring, of modified financing receivable.

+ References

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- Definition

Amount, before troubled debt restructuring, of financing receivable to be modified.

+ References

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- Definition

Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953682-111524

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- Definition

Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953682-111524

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