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Fair Value of Financial Instruments - Estimated Fair Values and Related Carrying or Notional Amounts (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Financial Assets:
Cash and Cash Equivalents	$ 22,018	$ 24,295	$ 19,263	$ 44,092
Securities-available for sale	235,115	248,492
Loans, net	679,821	616,021
Financial Liabilities:
Non-interest bearing Deposits	171,112	164,009
Time Deposits	184,285	195,500
Total deposits	771,339	762,560
Federal Funds purchased and Securities sold under agreement to repurchase	78,815	55,962
Federal Home Loan Bank advances	10,000	0
Carrying Amount [Member]
Financial Assets:
Cash and Cash Equivalents	22,018	24,295
Securities-available for sale	235,115	248,492
Other Securities	3,717	3,717
Loans, net	679,821	616,021
Interest receivable	3,589	3,578
Financial Liabilities:
Interest bearing Deposits	415,942	403,051
Non-interest bearing Deposits	171,112	164,009
Time Deposits	184,285	195,500
Total deposits	771,339	762,560
Federal Funds purchased and Securities sold under agreement to repurchase	78,815	55,962
Federal Home Loan Bank advances	10,000
Interest payable	185	207
Fair Value [Member]
Financial Assets:
Cash and Cash Equivalents	22,018	24,295
Securities-available for sale	235,115	248,492
Other Securities	3,717	3,717
Loans, net	683,332	625,377
Interest receivable	3,589	3,578
Financial Liabilities:
Interest bearing Deposits	415,942	403,801
Non-interest bearing Deposits	171,112	164,009
Time Deposits	184,308	196,545
Total deposits	771,362	764,355
Federal Funds purchased and Securities sold under agreement to repurchase	78,815	55,962
Federal Home Loan Bank advances	9,986
Interest payable	185	207
Level 1 [Member]
Financial Assets:
Cash and Cash Equivalents	22,018	24,295
Securities-available for sale	38,505	25,393
Level 2 [Member]
Financial Assets:
Securities-available for sale	189,258	215,168
Financial Liabilities:
Non-interest bearing Deposits	171,112	164,009
Total deposits	171,112	164,009
Level 3 [Member]
Financial Assets:
Securities-available for sale	7,352	7,931
Other Securities	3,717	3,717
Loans, net	683,332	625,377
Interest receivable	3,589	3,578
Financial Liabilities:
Interest bearing Deposits	415,942	403,801
Time Deposits	184,308	196,545
Total deposits	600,250	600,346
Federal Funds purchased and Securities sold under agreement to repurchase	78,815	55,962
Federal Home Loan Bank advances	9,986
Interest payable	$ 185	$ 207

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Other Securities consists of Federal Home Loan Bank of Cincinnati and Indianapolis stock and Farmer Mac stock. These stocks are carried at cost and are held to enable the Bank to conduct business with the entities. The Federal Home Loan Banks sell and purchase their stock at par; therefore cost approximates market value. The Federal Home Loan Bank of Cincinnati stock is held as collateral security for all indebtedness of the Bank to the Federal Home Loan Bank.

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Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

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Amount of debt securities categorized neither as held-to-maturity nor trading.

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Amount after offset of short term borrowing where a bank borrows, at the federal funds rate, from another bank and securities that an entity sells and agrees to repurchase at a specified date for a specified price.

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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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