ACQUIRED CREDIT IMPAIRED LOANS (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired	$ 848,769	$ 819,549
Less allowance for loan losses	3,403	3,575
Loans, net	845,657	816,228
Commercial & industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired	36,057	41,878
Commercial, secured by real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired	527,947	477,275
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired	251,582	265,788
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired	17,450	19,173
Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired	15,194	14,802
Other loans, including deposit overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired	539	633
Financial Receivable Acquired Credit Impaired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired	7,482	9,346
Less allowance for loan losses	0
Loans, net	7,482	$ 9,054
Financial Receivable Acquired Credit Impaired \| Commercial & industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired	1,008
Financial Receivable Acquired Credit Impaired \| Commercial, secured by real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired	4,048
Financial Receivable Acquired Credit Impaired \| Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired	2,024
Financial Receivable Acquired Credit Impaired \| Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired	0
Financial Receivable Acquired Credit Impaired \| Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired	0
Financial Receivable Acquired Credit Impaired \| Other loans, including deposit overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired	$ 402

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and 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 and loans held for sale.

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