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LOANS - Recorded Investment and Number of Modifications (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($) modification	Jun. 30, 2016 USD ($) modification	Jun. 30, 2017 USD ($) modification	Jun. 30, 2016 USD ($) modification
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications (in modification) | modification	5	1	9	5
Pre-Modification Outstanding Recorded Investment	$ 395	$ 30	$ 1,087	$ 455
Post-Modification Outstanding Recorded Investment	$ 393	$ 30	$ 1,072	$ 443
Commercial and Industrial: | Commercial installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications (in modification) | modification	0		1
Pre-Modification Outstanding Recorded Investment	$ 0		$ 80
Post-Modification Outstanding Recorded Investment	$ 0		$ 77
Commercial and Industrial: | Agricultural and other loans to farmers
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications (in modification) | modification	1		1	2
Pre-Modification Outstanding Recorded Investment	$ 19		$ 19	$ 30
Post-Modification Outstanding Recorded Investment	$ 18		$ 18	$ 25
Commercial Real Estate: | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications (in modification) | modification	2		2	3
Pre-Modification Outstanding Recorded Investment	$ 245		$ 245	$ 425
Post-Modification Outstanding Recorded Investment	$ 245		$ 245	$ 418
Residential Real Estate: | Residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications (in modification) | modification	1		3
Pre-Modification Outstanding Recorded Investment	$ 118		$ 692
Post-Modification Outstanding Recorded Investment	$ 117		$ 682
Consumer: | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications (in modification) | modification	1		1
Pre-Modification Outstanding Recorded Investment	$ 13		$ 13
Post-Modification Outstanding Recorded Investment	$ 13		$ 13
Consumer: | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Modifications (in modification) | modification	0		1
Pre-Modification Outstanding Recorded Investment	$ 0		$ 38
Post-Modification Outstanding Recorded Investment	$ 0		$ 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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+ 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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+ 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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