LOANS AND RELATED ALLOWANCE FOR LOAN LOSSES, Loan Modifications Related to COVID-19 (Details) - COVID-19 [Member] $ in Thousands	12 Months Ended
Dec. 31, 2020 USD ($) Loan
Loan Modifications Related to COVID-19 [Abstract]
Number of loans \| Loan	539
Balance as of Modification date	$ 207,086
Number of loans \| Loan	4
Balance	$ 8,738
Principal and Interest Deferral	4,241
Principal Deferral	$ 4,497
Balance	0.62%
Real Estate Loans [Member] \| Mortgages [Member]
Loan Modifications Related to COVID-19 [Abstract]
Number of loans \| Loan	50
Balance as of Modification date	$ 10,056
Number of loans \| Loan	1
Balance	$ 3,397
Principal and Interest Deferral	3,397
Principal Deferral	$ 0
Balance	2.31%
Real Estate Loans [Member] \| Home Equity [Member]
Loan Modifications Related to COVID-19 [Abstract]
Number of loans \| Loan	30
Balance as of Modification date	$ 1,419
Number of loans \| Loan	0
Balance	$ 0
Principal and Interest Deferral	0
Principal Deferral	$ 0
Balance	0.00%
Real Estate Loans [Member] \| Commercial [Member]
Loan Modifications Related to COVID-19 [Abstract]
Number of loans \| Loan	259
Balance as of Modification date	$ 144,647
Number of loans \| Loan	2
Balance	$ 5,201
Principal and Interest Deferral	704
Principal Deferral	$ 4,497
Balance	0.87%
Real Estate Loans [Member] \| Agricultural [Member]
Loan Modifications Related to COVID-19 [Abstract]
Number of loans \| Loan	52
Balance as of Modification date	$ 22,209
Number of loans \| Loan	0
Balance	$ 0
Principal and Interest Deferral	0
Principal Deferral	$ 0
Balance	0.00%
Real Estate Loans [Member] \| Construction [Member]
Loan Modifications Related to COVID-19 [Abstract]
Number of loans \| Loan	3
Balance as of Modification date	$ 1,178
Number of loans \| Loan	0
Balance	$ 0
Principal and Interest Deferral	0
Principal Deferral	$ 0
Balance	0.00%
Consumer [Member]
Loan Modifications Related to COVID-19 [Abstract]
Number of loans \| Loan	10
Balance as of Modification date	$ 68
Number of loans \| Loan	0
Balance	$ 0
Principal and Interest Deferral	0
Principal Deferral	$ 0
Balance	0.00%
Other Commercial Loans [Member]
Loan Modifications Related to COVID-19 [Abstract]
Number of loans \| Loan	88
Balance as of Modification date	$ 24,077
Number of loans \| Loan	1
Balance	$ 140
Principal and Interest Deferral	140
Principal Deferral	$ 0
Balance	0.12%
Other Agricultural Loans [Member]
Loan Modifications Related to COVID-19 [Abstract]
Number of loans \| Loan	47
Balance as of Modification date	$ 3,432
Number of loans \| Loan	0
Balance	$ 0
Principal and Interest Deferral	0
Principal Deferral	$ 0
Balance	0.00%

Number of loans receiving accommodations for financing receivables under COVID-19.

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Percentage of total loans that have been modified by other than troubled debt restructurings.

+ References

No definition available.

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Amount of financing receivable modified by other than troubled debt restructurings.

+ References

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Number of financing receivables that have been under COVID-19.

+ References

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Amount of principal and interest deferred of loans and leases receivable.

+ References

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Amount of principal deferred of loans and leases receivable.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5074-111524

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