Estimated Fair Values of Company's Financial Instruments (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Financial assets
Cash and cash equivalents	$ 12,701	$ 39,164	$ 23,474
Held-to-maturity securities	0	450
Loans, net of allowance	327,226	313,354
Federal Home Loan Bank stock	4,210	4,210
Accrued interest receivable	803	829
Financial liabilities
Deposits	323,622	322,681
Short term borrowings	5,691	5,098
Federal Home Loan Bank advances	26,530	26,719
Subordinated debentures	4,124	4,124
Interest payable	123	135
Fair Value, Inputs, Level 1
Financial assets
Cash and cash equivalents	12,701	39,164
Held-to-maturity securities		0
Loans, net of allowance	0	0
Federal Home Loan Bank stock	0	0
Accrued interest receivable	0	0
Financial liabilities
Deposits	0	0
Short term borrowings	0	0
Federal Home Loan Bank advances	0	0
Subordinated debentures	0	0
Interest payable	0	0
Fair Value, Inputs, Level 2
Financial assets
Cash and cash equivalents	0	0
Held-to-maturity securities		450
Loans, net of allowance	0	0
Federal Home Loan Bank stock	4,210	4,210
Accrued interest receivable	803	829
Financial liabilities
Deposits	307,172	309,186
Short term borrowings	5,691	5,098
Federal Home Loan Bank advances	27,347	26,703
Subordinated debentures	3,238	3,962
Interest payable	123	135
Fair Value, Inputs, Level 3
Financial assets
Cash and cash equivalents	0	0
Held-to-maturity securities		0
Loans, net of allowance	325,354	312,014
Federal Home Loan Bank stock	0	0
Accrued interest receivable	0	0
Financial liabilities
Deposits	0	0
Short term borrowings	0	0
Federal Home Loan Bank advances	0	0
Subordinated debentures	0	0
Interest payable	$ 0	$ 0

Amount 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. Excludes cash and cash equivalents within disposal group and discontinued operation.

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The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

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Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

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Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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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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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

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