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LOANS - Average Balance of Impaired Loans and Income Recognized on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Average Investment in Impaired Loans	$ 11,286	$ 6,381	$ 9,087	$ 7,511
Interest Income Recognized on Impaired Loans on a Cash Basis	90	53	134	114
Residential mortgage
Average Investment in Impaired Loans	1,854	1,259	1,767	1,267
Interest Income Recognized on Impaired Loans on a Cash Basis	49	8	58	20
Residential mortgage | Real estate loan | first liens
Average Investment in Impaired Loans	1,398	970	1,315	977
Interest Income Recognized on Impaired Loans on a Cash Basis	35	8	43	18
Residential mortgage | Real estate loan | junior liens
Average Investment in Impaired Loans	391	289	387	290
Interest Income Recognized on Impaired Loans on a Cash Basis	13	0	13	2
Residential mortgage | Home Equity Line of Credit [Member]
Average Investment in Impaired Loans	65	0	65	0
Interest Income Recognized on Impaired Loans on a Cash Basis	1	0	2	0
Commercial
Average Investment in Impaired Loans	9,432	5,122	7,320	6,238
Interest Income Recognized on Impaired Loans on a Cash Basis	41	45	76	94
Commercial | Real estate loan
Average Investment in Impaired Loans	3,771	1,722	2,079	2,582
Interest Income Recognized on Impaired Loans on a Cash Basis	12	7	16	17
Commercial | Commercial and industrial
Average Investment in Impaired Loans	4,460	1,241	3,666	1,546
Interest Income Recognized on Impaired Loans on a Cash Basis	19	8	20	34
Commercial | Construction Loans
Average Investment in Impaired Loans	678	0	993	0
Interest Income Recognized on Impaired Loans on a Cash Basis	1	0	13	0
Commercial | Loans secured by farm land
Average Investment in Impaired Loans	422	1,533	469	1,471
Interest Income Recognized on Impaired Loans on a Cash Basis	7	18	24	19
Commercial | Agricultural loans
Average Investment in Impaired Loans	76	626	76	639
Interest Income Recognized on Impaired Loans on a Cash Basis	2	12	2	24
Commercial | Other commercial loans
Average Investment in Impaired Loans	25	0	37	0
Interest Income Recognized on Impaired Loans on a Cash Basis	0	0	1	0
Consumer
Average Investment in Impaired Loans	0	0	0	6
Interest Income Recognized on Impaired Loans on a Cash Basis	$ 0	$ 0	$ 0	$ 0

X

- Definition

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5258-111524

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X

- Definition

Amount of interest income recognized on a cash-basis method of accounting that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524

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