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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) segment office	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Accounting Policies [Line Items]
Number of offices in which the company operates throughout the country | office			23
Held to maturity or trading securities	$ 0		$ 0		$ 0
Debt securities other than temporarily impaired	0		$ 0		0
Maturity of interest bearing deposits			90 days
Balance of loans serviced for others	316,718,000		$ 316,718,000		315,239,000
Foreclosed real estate totaled	1,022,000		1,022,000		932,000
Advertising expense	244,000	$ 120,000	$ 500,000	$ 486,000
Percentage of deferred tax assets			50.00%
Accumulated other comprehensive income (loss), net of taxes	$ 3,207,000		$ 3,207,000		$ 1,576,000
Number of significant operating segment | segment			1
Minimum | Building and Improvements
Accounting Policies [Line Items]
Plant and equipment, useful life			10 years
Minimum | Furniture and Equipment
Accounting Policies [Line Items]
Plant and equipment, useful life			3 years
Maximum
Accounting Policies [Line Items]
Cash and cash equivalents, original maturities			90 days
Maximum | Building and Improvements
Accounting Policies [Line Items]
Plant and equipment, useful life			40 years
Maximum | Furniture and Equipment
Accounting Policies [Line Items]
Plant and equipment, useful life			15 years

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Accounting Policies [Line Items]

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Balance of loans serviced for others.

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Cash and cash equivalents including cash, balances due from banks and funds sold maturity period.

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Debt securities other than temporarily impaired.

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Held to maturity or trading securities.

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Maturity of interest bearing deposits.

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Number of offices.

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Percentage of deferred tax assets.

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

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