FAIR VALUE - Financial Instruments at Estimated Fair Values (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financial Assets
Interest-bearing deposits with banks	$ 4,460	$ 8,073
Restricted investments in bank stocks	12,697	9,997
Securities available for sale	449,419	415,308
Carrying Amount
Financial Assets
Cash and due from banks	18,122	21,734
Interest-bearing deposits with banks	4,460	8,073
Restricted investments in bank stocks	12,697	9,997
Securities available for sale	449,419	415,308
Loans held for sale	5,495	6,089
Loans, net of allowance for loan losses	1,050,446	997,216
Accrued interest receivable	5,568	5,048
Financial Liabilities
Deposits	1,325,866	1,219,515
Short-term borrowings	63,838	93,576
Long-term debt	83,635	83,815
Accrued interest payable	495	495
Off-balance sheet instruments	0	0
Fair Value
Financial Assets
Cash and due from banks	18,122	21,734
Interest-bearing deposits with banks	4,460	8,073
Securities available for sale	449,419	415,308
Loans held for sale	5,538	6,272
Loans, net of allowance for loan losses	1,042,855	994,617
Accrued interest receivable	5,568	5,048
Financial Liabilities
Deposits	1,324,138	1,213,288
Short-term borrowings	63,838	93,576
Long-term debt	82,928	83,949
Accrued interest payable	495	495
Off-balance sheet instruments	0	0
Fair Value \| Level 1
Financial Assets
Cash and due from banks	18,122	21,734
Interest-bearing deposits with banks	4,460	8,073
Securities available for sale	0	0
Loans held for sale	0	0
Loans, net of allowance for loan losses	0	0
Accrued interest receivable	0	0
Financial Liabilities
Deposits	0	0
Short-term borrowings	0	0
Long-term debt	0	0
Accrued interest payable	0	0
Off-balance sheet instruments	0	0
Fair Value \| Level 2
Financial Assets
Cash and due from banks	0	0
Interest-bearing deposits with banks	0	0
Securities available for sale	449,419	415,308
Loans held for sale	5,538	6,272
Loans, net of allowance for loan losses	0	0
Accrued interest receivable	2,906	2,580
Financial Liabilities
Deposits	1,324,138	1,213,288
Short-term borrowings	63,838	93,576
Long-term debt	82,928	83,949
Accrued interest payable	495	495
Off-balance sheet instruments	0	0
Fair Value \| Level 3
Financial Assets
Cash and due from banks	0	0
Interest-bearing deposits with banks	0	0
Securities available for sale	0	0
Loans held for sale	0	0
Loans, net of allowance for loan losses	1,042,855	994,617
Accrued interest receivable	2,662	2,468
Financial Liabilities
Deposits	0	0
Short-term borrowings	0	0
Long-term debt	0	0
Accrued interest payable	0	0
Off-balance sheet instruments	$ 0	$ 0

Interest payable fair value.

No definition available.

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- Definition

Interest receivable fair value.

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No definition available.

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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No definition available.

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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

No definition available.

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- Definition

Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

+ References

No definition available.

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- Definition

The fair value of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
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- Definition

For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section 45
-Paragraph 4
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-Subparagraph (SX 210.9-03.2)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

+ References

No definition available.

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- Definition

Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2196772

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

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- Definition

Investments which are not defined as or included in marketable (debt, equity, or other) securities whose use is restricted in whole or in part, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet.

+ References

No definition available.

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date.

+ References

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