FAIR VALUE - Financial Instruments at Estimated Fair Values (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financial Assets
Interest-bearing deposits with banks	$ 18,258	$ 14,201
Restricted investments in bank stocks	7,072	7,970
AFS securities	401,904	400,154
Carrying Amount
Financial Assets
Cash and due from banks	19,754	16,072
Interest-bearing deposits with banks	18,258	14,201
Restricted investments in bank stocks	7,072	7,970
AFS securities	401,904	400,154
Loans held for sale	5,182	2,768
Loans, net of allowance for loan losses	921,631	870,616
Accrued interest receivable	4,467	4,672
Financial Liabilities
Deposits	1,195,936	1,152,452
Short-term borrowings	90,562	87,864
Long-term debt	23,991	24,163
Accrued interest payable	448	437
Off-balance sheet instruments	0	0
Fair Value
Financial Assets
Cash and due from banks	19,754	16,072
Interest-bearing deposits with banks	18,258	14,201
AFS securities	401,904	400,154
Loans held for sale	5,320	2,843
Loans, net of allowance for loan losses	922,642	870,470
Accrued interest receivable	4,467	4,672
Financial Liabilities
Deposits	1,193,225	1,149,727
Short-term borrowings	90,562	87,864
Long-term debt	24,487	24,966
Accrued interest payable	448	437
Off-balance sheet instruments	0	0
Fair Value \| Level 1
Financial Assets
Cash and due from banks	19,754	16,072
Interest-bearing deposits with banks	18,258	14,201
AFS securities	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
AFS securities	401,904	400,154
Loans held for sale	5,320	2,843
Loans, net of allowance for loan losses	0	0
Accrued interest receivable	2,501	2,643
Financial Liabilities
Deposits	1,193,225	1,149,727
Short-term borrowings	90,562	87,864
Long-term debt	24,487	24,966
Accrued interest payable	448	437
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
AFS securities	0	0
Loans held for sale	0	0
Loans, net of allowance for loan losses	922,642	870,470
Accrued interest receivable	1,966	2,029
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.

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- Definition

Interest receivable fair value.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
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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.

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No definition available.

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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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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/presentationRef
-Publisher FASB
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-Paragraph 10
-Subparagraph (a)
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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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.2)
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- Definition

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

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No definition available.

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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.

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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.

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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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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.

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