NB&T Financial (NBTF) 10-K 18 Mar 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Mar. 03, 2014	Jun. 30, 2013
Document And Entity Information [Abstract]	'	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Dec-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Trading Symbol	'NBTF	'	'
Entity Registrant Name	'NB&T FINANCIAL GROUP INC	'	'
Entity Central Index Key	'0000908837	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Filer Category	'Smaller Reporting Company	'	'
Entity Common Stock, Shares Outstanding	'	3,429,560	'
Entity Public Float	'	'	$52,273,804

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Assets	'	'
Cash and due from banks	$9,155	$14,085
Interest-bearing deposits	41,901	50,002
Federal funds sold	443	422
Cash and cash equivalents	51,499	64,509
Available-for-sale securities	138,098	133,020
Loans held for sale	0	255
Loans, net of allowance for loan losses of $4,053 and $4,760 at December 31, 2013 and 2012, respectively	395,443	397,169
Premises and equipment	16,895	18,417
Federal Reserve and Federal Home Loan Bank stock	10,035	10,030
Earned income receivable	2,546	2,732
Goodwill	3,625	3,625
Core deposits and other intangibles	312	556
Bank-owned life insurance	16,111	15,644
Other real estate owned	1,224	1,327
FDIC loss share receivable	525	1,340
Other	1,999	2,451
Total assets	638,312	651,075
Deposits	'	'
Demand	115,206	105,535
Savings, NOW and money market	339,260	333,041
Time	96,334	120,992
Total deposits	550,800	559,568
Long-term debt	14,310	15,310
Interest payable and other liabilities	5,167	5,377
Total liabilities	570,277	580,255
Commitments and Contingencies	'	'
Stockholders' Equity	'	'
Preferred stock, no par value, authorized 100,000 shares; none issued	'	'
Common stock, no par value; authorized 6,000,000 shares; issued - 3,818,950 shares; outstanding 2013 - 3,429,560 and 2012 - 3,421,580	1,000	1,000
Additional paid-in capital	12,733	12,440
Retained earnings	59,820	59,683
Accumulated other comprehensive income (loss)	-900	2,333
Treasury stock, at cost Common: 2013-389,390 shares, 2012-397,370 shares	-4,618	-4,636
Total stockholders' equity	68,035	70,820
Total liabilities and stockholders' equity	$638,312	$651,075

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Statement Of Financial Position [Abstract]	'	'
Allowance for loan losses	$4,053	$4,760
Preferred stock, par value	'	'
Preferred stock, shares authorized	100,000	100,000
Preferred stock, shares issued	'	'
Common stock, par value	'	'
Common stock, shares authorized	6,000,000	6,000,000
Common stock, shares issued	3,818,950	3,818,950
Common stock, outstanding	3,429,560	3,421,580
Treasury stock, shares	389,390	397,370

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Interest and Dividend Income	'	'	'
Loans	$19,627	$21,808	$23,873
Securities	'	'	'
Taxable	903	1,975	3,302
Tax-exempt	1,360	835	384
Dividends on Federal Home Loan and Federal Reserve Bank stock	438	461	443
Deposits with financial institutions	144	200	170
Total interest and dividend income	22,472	25,279	28,172
Interest Expense	'	'	'
Deposits	1,527	2,470	3,832
Short-term borrowings	0	0	31
Long-term debt	317	699	871
Total interest expense	1,844	3,169	4,734
Net Interest Income	20,628	22,110	23,438
Provision for Loan Losses	2,590	4,287	2,935
Net Interest Income After Provision for Loan Losses	18,038	17,823	20,503
Noninterest Income	'	'	'
Trust income	1,267	1,124	1,030
Service charges on deposits	2,995	3,212	2,929
Other service charges and fees	2,129	2,076	1,925
Investment services commissions	407	361	396
Net realized gains on sales of available-for-sale securities	1,008	1,174	1,820
Income from bank owned life insurance	467	478	486
Gain on extinguishment of long-term debt	300	0	0
Death benefit in excess of life insurance cash value	0	359	0
Other-than-temporary losses on investments:	'	'	'
Total other-than-temporary losses	0	-35	0
Portion of loss recognized in other comprehensive income (before taxes)	0	0	0
Net impairment losses recognized in earnings	0	-35	0
Other	1,069	1,792	1,138
Total noninterest income	9,642	10,541	9,724
Noninterest Expense	'	'	'
Salaries and employee benefits	10,915	11,263	11,971
Net occupancy expense	2,139	2,259	2,382
Equipment expense	1,363	1,426	1,480
Data processing fees	1,883	1,740	1,611
Professional fees	1,770	1,647	1,867
Marketing expense	259	500	648
Printing, postage and supplies	626	674	834
State franchise tax	905	907	829
FDIC insurance	453	512	622
Amortization of intangibles	244	275	353
Net costs of operation of other real estate	361	922	1,259
Other	1,473	1,369	1,267
Total non-interest expense	22,391	23,494	25,123
Income Before Income Tax	5,289	4,870	5,104
Provision for Income Taxes	1,046	993	1,303
Net Income	$4,243	$3,877	$3,801
Basic Earnings Per Share	$1.24	$1.13	$1.11
Diluted Earnings Per Share	$1.24	$1.13	$1.11

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement Of Income And Comprehensive Income [Abstract]	'	'	'
Net income	$4,243	$3,877	$3,801
Other comprehensive income (loss), before tax effect:	'	'	'
Unrealized gains (losses) on securities available-for-sale	-3,891	1,172	1,706
Net unrealized gain on available-for-sale securities for which a portion of an other-than-temporary impairment has been recognized in income	0	156	0
Reclassification of gains realized in income	-1,008	-1,139	-1,820
Other comprehensive income (loss), before tax effect	-4,899	189	-114
Tax expense (credit)	-1,666	64	-39
Other comprehensive income (loss)	-3,233	125	-75
Comprehensive Income	$1,010	$4,002	$3,726

Consolidated_Statements_of_Sto

Consolidated Statements of Stockholders' Equity (USD $)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Treasury Stock [Member]
In Thousands
Beginning Balance at Dec. 31, 2010	$71,019	$1,000	$12,013	$60,221	$2,283	($4,498)
Net income	3,801	0	0	3,801	0	0
Other comprehensive income (loss)	-75	0	0	0	-75	0
Dividends on common stock	-4,109	0	0	-4,109	0	0
Purchase of stock	-16	0	0	0	0	-16
Stock options expense	170	0	170	0	0	0
Ending Balance at Dec. 31, 2011	70,790	1,000	12,183	59,913	2,208	-4,514
Net income	3,877	0	0	3,877	0	0
Other comprehensive income (loss)	125	0	0	0	125	0
Dividends on common stock	-4,107	0	0	-4,107	0	0
Stock options exercised	52	0	14	0	0	38
Purchase of stock	-276	0	0	0	0	-276
Sale of stock	185	0	69	0	0	116
Stock options expense	174	0	174	0	0	0
Ending Balance at Dec. 31, 2012	70,820	1,000	12,440	59,683	2,333	-4,636
Net income	4,243	0	0	4,243	0	0
Other comprehensive income (loss)	-3,233	0	0	0	-3,233	0
Dividends on common stock	-4,106	0	0	-4,106	0	0
Stock options exercised	283	0	87	0	0	196
Purchase of stock	-198	0	0	0	0	-198
Sale of stock	34	0	14	0	0	20
Stock options expense	192	0	192	0	0	0
Ending Balance at Dec. 31, 2013	$68,035	$1,000	$12,733	$59,820	($900)	($4,618)

Consolidated_Statements_of_Sto1

Consolidated Statements of Stockholders' Equity (Parenthetical) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Common stock dividends per share	$1.20	$1.20	$1.20
Purchase of stock, shares	10,300	14,866	910
Sale of stock, shares	1,695	9,966	'
Additional Paid-in Capital [Member]	'	'	'
Sale of stock, shares	1,695	9,966	'
Retained Earnings [Member]	'	'	'
Common stock dividends per share	$1.20	$1.20	$1.20
Treasury Stock [Member]	'	'	'
Purchase of stock, shares	10,300	14,866	910
Sale of stock, shares	1,695	9,966	'

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Activities	'	'	'
Net income	$4,243	$3,877	$3,801
Items not requiring (providing) cash:	'	'	'
Depreciation and amortization	1,560	1,630	1,748
Provision for Loan Losses	2,590	4,287	2,935
Amortization of premiums and discounts on securities	3,706	3,560	2,351
Increase in cash surrender value on bank owned life insurance	-467	-478	-486
Death benefit in excess of life insurance cash value	0	-359	0
Gain on extinguishment of long-term debt	-300	0	0
Proceeds from FDIC loss share receivable	815	588	163
Stock options expense	192	174	170
Deferred income taxes	-46	-227	40
Proceeds from sale of loans held for sale	5,554	8,081	11,753
Originations of loans held for sale	-5,220	-8,277	-11,020
Gain from sale of loans	-79	-59	-45
Impairment loss on other real estate	229	551	506
(Gain) loss on sale of other real estate	-87	73	226
(Gain) loss on sale of fixed assets	11	-7	108
Other-than-temporary impairment of available-for-sale securities	0	35	0
Net realized gains on available-for-sale securities	-1,008	-1,174	-1,820
Changes in:	'	'	'
Interest receivable	186	215	-39
Other assets	452	625	1,068
Interest payable and other liabilities	473	-1,539	967
Net cash provided by operating activities	12,804	11,576	12,426
Investing Activities	'	'	'
Purchases of available-for-sale securities	-87,132	-62,153	-113,670
Proceeds from sales of available-for-sale securities	28,857	14,845	45,396
Proceeds from maturities of available-for-sale securities	45,600	51,801	61,740
Purchase of Federal Reserve Bank stock	-5	-5	-4
Proceeds from death benefit on bank owned life insurance	0	680	0
Net change in loans	-1,832	-2,510	6,153
Proceeds from sale of other real estate	1,485	2,426	2,003
Purchases of premises and equipment	-392	-857	-587
Proceeds on sales of premises and equipment	31	26	354
Net cash provided by (used in) investing activities	-13,388	4,253	1,385
Financing Activities	'	'	'
Net increase in demand deposits, money market, now and savings accounts	15,890	9,320	31,296
Net decrease in certificates of deposit	-24,658	-31,135	-34,286
Repayment of short-term borrowings	0	0	-12,779
Extinguishment of long-term debt	-700	0	0
Proceeds from stock options exercised	283	52	0
Purchase of treasury stock	-198	-276	-16
Proceeds from sale of treasury stock	34	185	0
Dividends paid	-3,077	-5,134	-4,109
Net cash used in financing activities	-12,426	-26,988	-19,894
Decrease in Cash and Cash Equivalents	-13,010	-11,159	-6,083
Cash and Cash Equivalents, Beginning of Year	64,509	75,668	81,751
Cash and Cash Equivalents, End of Year	51,499	64,509	75,668
Supplemental Cash Flows Information	'	'	'
Interest paid	1,878	3,263	4,884
Income taxes paid (net of refunds)	1,843	1,498	593
Transfers of loans into other real estate owned	$1,562	$857	$2,001

Nature_of_Operations_and_Summa

Nature of Operations and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Nature of Operations and Summary of Significant Accounting Policies	'
	Note 1: Nature of Operations and Summary of Significant Accounting Policies
	Nature of Operations
	NB&T Financial Group, Inc. (the “Company”) is a financial holding company whose principal activity is the ownership and management of its wholly-owned subsidiaries, The National Bank and Trust Company (the “Bank”), NB&T Insurance Group, Inc. (the “Group”), and NB&T Statutory Trust III (“Trust III”). In accordance with the Consolidation topic of the FASB Accounting Standards Codification (“ASC”), Trust III is not consolidated into these financial statements. The Bank is primarily engaged in providing a full range of banking and financial services to individual and corporate customers in Brown, Clermont, Clinton, Highland, Montgomery and Warren counties in Ohio. The Bank offers certain investment products through its wholly-owned subsidiary, the Group. The Bank is subject to competition from other financial institutions. The Bank is subject to the regulation of certain federal and state agencies and undergoes periodic examinations by those regulatory authorities.
	Principles of Consolidation
	The consolidated financial statements include the accounts of the Company, the Bank and the Group. All significant intercompany accounts and transactions have been eliminated in consolidation.
	Use of Estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
	Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for loan losses. In connection with the determination of the allowance for loan losses, management obtains independent appraisals for significant properties and collateral securing impaired loans.
	Cash Equivalents
	The Company considers all liquid investments with original maturities of three months or less to be cash equivalents. At December 31, 2013 and 2012, cash equivalents consisted primarily of interest-bearing accounts with the Federal Reserve Bank and the Federal Home Loan Bank of Cincinnati and non-interest bearing cash accounts with other financial institutions.
	Currently, FDIC insurance limits are $250,000 per covered institution. At December 31, 2013, the Company’s cash accounts exceeded federally insured limits by $41,291,000. Of that amount, $41,098,000 was held at the Federal Reserve Bank.
	Securities
	The Company classifies all securities as available-for-sale securities, which are carried at fair value. The Company has no immediate plan to sell but may sell securities in the future. Unrealized gains and losses are recorded, net of related income tax effects, in other comprehensive income.
	Amortization of premiums and accretion of discounts are recorded as interest income from securities. Realized gains and losses are recorded as net security gains (losses). Gains and losses on sales of securities are recorded on the trade date and are determined on the specific-identification method.
	The Company handles other-than-temporary impairment in the securities portfolio in accordance with current accounting standards (ASC 320-10). When the Company does not intend to sell a debt security, and it is more likely than not that the Company will not have to sell the security before recovery of its cost basis, it recognizes the credit component of an other-than-temporary impairment of a debt security in earnings and the remaining portion in other comprehensive income.
	As a result of this guidance, with respect to available-for-sale debt securities that management has no intent to sell and believes it is more likely than not the debt security will not be required to be sold prior to recovery, only the credit loss component of the impairment is recognized in earnings, while the noncredit loss is recognized in accumulated other comprehensive income. The credit loss component recognized in earnings is identified as the amount of principal cash flows not expected to be received over the remaining term of the security as projected based on cash flow projections.
	Loans Held for Sale
	Mortgage loans originated and intended for sale in the secondary market are carried at the lower of cost or fair value in the aggregate. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income.
	Loans
	Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoffs are reported at their outstanding principal balances adjusted for unearned income, charge-offs, the allowance for loan losses, any unamortized deferred fees or costs on originated loans and unamortized premiums or discounts on purchased loans.
	For loans amortized at cost, interest income is accrued based on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, as well as premiums and discounts, are deferred and amortized as a level yield adjustment over the respective term of the loan.
	For all loan classes, the accrual of interest is discontinued at the time the loan is 90 days past due unless the credit is well-secured and in process of collection. Past due status is based on contractual terms of the loan. For all loan classes, the entire balance of the loan is considered past due if the minimum payment contractually required to be paid is not received by the contractual due date. For all loan classes, loans are placed on nonaccrual or charged off at an earlier date if collection of principal or interest is considered doubtful.
	Management’s general practice is to proactively charge down loans individually evaluated for impairment to the fair value of the underlying collateral. Consistent with regulatory guidance, charge-offs on all loan segments are taken when specific loans, or portions thereof, are considered uncollectible. The Company’s policy is to promptly charge these loans off in the period the uncollectible loss is reasonably determined.
	For all loan portfolio segments except residential and consumer loans, the Company promptly charges-off loans, or portions thereof, when available information confirms that specific loans are uncollectible based on information that includes, but is not limited to, (1) the deteriorating financial condition of the borrower, (2) declining collateral values, and/or (3) legal action, including bankruptcy, that impairs the borrower’s ability to adequately meet its obligations. For impaired loans that are considered to be solely collateral dependent, a partial charge-off is recorded when a loss has been confirmed by an updated appraisal or other appropriate valuation of the collateral.
	The Company charges-off residential and consumer loans, or portions thereof, when the Company reasonably determines the amount of the loss. The Company adheres to timeframes established by applicable regulatory guidance, which provide for the charge-down of 1-4 family first and junior lien mortgages to the net realizable value less costs to sell when the loan is 180 days past due and charge down to the net realizable value when other secured loans are 120 days past due. Loans at these respective delinquency thresholds for which the Company can clearly document that the loan is both well-secured and in the process of collection, such that collection will occur regardless of delinquency status, need not be charged off.
	For all classes, all interest accrued but not collected for loans that are placed on nonaccrual or charged off are reversed against interest income. The interest on these loans is accounted for on the cash-basis or cost-recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. Nonaccrual loans are returned to accrual status when, in the opinion of management, the financial position of the borrower indicates there is no longer any reasonable doubt as to the timely collection of interest or principal. The Company requires a period of satisfactory performance of not less than six months before returning a nonaccrual loan to accrual status.
	Generally, most impaired loans, except for certain troubled debt restructurings, are on nonaccrual. Troubled debt restructured loans recognize interest income on an accrual basis at the renegotiated rate if the loan is in compliance with the modified terms, no principal reduction has been granted and the loan has demonstrated the ability to perform in accordance with the renegotiated terms for a period of at least six months.
	Allowance for Loan Losses
	The allowance for loan losses is established as losses are estimated to have occurred through a provision for loan losses charged to income. Loan losses are charged against the allowance when management believes the uncollectability of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance.
	The allowance for loan losses is evaluated on a regular basis by management and is based upon management’s periodic review of the collectability of the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral and prevailing economic conditions. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available.
	The allowance consists of allocated and general components. The allocated component relates to loans that are classified as impaired. For those loans that are classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers non-impaired loans and is based on historical charge-off experience by segment. The historical loss experience is determined by portfolio segment and is based on the actual loss history experienced by the Company over the prior one to three years. Management believes the one-to-three year historical loss experience methodology is appropriate in the current economic environment. Other adjustments (qualitative/environmental considerations) for each segment may be added to the allowance for each loan segment after an assessment of internal or external influences on credit quality that are not fully reflected in the historical loss or risk rating data.
	A loan is considered impaired when, based on current information and events, it is probable that the Bank will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record and the amount of the shortfall in relation to the principal and interest owed. Impairment is measured on a loan-by-loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price or the fair value of the collateral if the loan is collateral dependent. For impaired loans where the Company utilizes the discounted cash flows to determine the level of impairment, the Company includes the entire change in the present value of cash flows as bad debt expense.
	The fair values of collateral dependent impaired loans are based on independent appraisals of the collateral. In general, the Company acquires an updated appraisal upon identification of impairment and periodically thereafter for commercial, commercial real estate and multi-family loans. After determining the collateral value as described, the fair value is calculated based on the determined collateral value less selling expenses. The potential for outdated appraisal values is considered in our determination of the allowance for loan losses through our analysis of various trends and conditions including the local economy, trends in charge-offs and delinquencies, etc. and the related qualitative adjustments assigned by the Company.
	Segments of loans with similar risk characteristics are collectively evaluated for impairment based on the segment’s historical loss experience adjusted for changes in trends, conditions and other relevant factors that affect repayment of the loans. Accordingly, the Company does not separately identify individual consumer and residential loans for impairment measurements, unless such loans are the subject of a restructuring agreement due to financial difficulties of the borrower.
	In the course of working with borrowers, the Company may choose to restructure the contractual terms of certain loans. In this scenario, the Company attempts to work out an alternative payment schedule with the borrower in order to optimize collectability of the loan. Any loans that are modified are reviewed by the Company to identify if a troubled debt restructuring (“TDR”) has occurred, which is when, for economic or legal reasons related to a borrower’s financial difficulties, the Company grants a concession to the borrower that it would not otherwise consider. Terms may be modified to fit the ability of the borrower to repay in line with its current financial status, and the restructuring of the loan may include the transfer of assets from the borrower to satisfy the debt, a modification of loan terms, or a combination of the two. If such efforts by the Company do not result in a satisfactory arrangement, the loan is referred to legal counsel, at which time foreclosure proceedings are initiated. At any time prior to a sale of the property at foreclosure, the Company may terminate foreclosure proceedings if the borrower is able to work out a satisfactory payment plan.
	It is the Company’s policy to have any restructured loans which are on nonaccrual status prior to being restructured remain on nonaccrual status until six months of satisfactory borrower performance, at which time management would consider its return to accrual status. If a loan was accruing at the time of restructuring, the Company reviews the loan to determine if it is appropriate to continue the accrual of interest on the restructured loan.
	With regard to determination of the amount of the allowance for credit losses, troubled debt restructured loans are considered to be impaired. As a result, the determination of the amount of impaired loans for each portfolio segment within troubled debt restructurings is the same as detailed previously.
	Premises and Equipment
	Depreciable assets are stated at cost less accumulated depreciation. Depreciation is charged to expense using the straight-line method over the estimated useful lives of the assets. Buildings and building improvements are depreciated over an average of 40 years and 10 years, respectively. Furniture, fixtures and equipment is depreciated over a range of three to seven years. Leasehold improvements are amortized over the lesser of the asset’s useful life or the lease term, including any renewal periods for which renewal is reasonably assured.
	Federal Reserve and Federal Home Loan Bank Stock
	Federal Reserve and Federal Home Loan Bank stock are required investments for institutions that are members of the Federal Reserve and Federal Home Loan Bank systems. The required investment in the common stock is based on a predetermined formula, carried at cost and evaluated for impairment.
	Foreclosed Assets Held for Sale
	Assets acquired through, or in lieu of, loan foreclosure are held for sale and are initially recorded at fair value at the date of foreclosure, establishing a new cost basis. Subsequent to foreclosure, valuations are periodically performed by management and the assets are carried at the lower of carrying amount or fair value less cost to sell. Revenue and expenses from operations and changes in the valuation allowance are included in net income or expense from foreclosed assets.
	Goodwill
	Goodwill is tested at least annually for impairment. If the implied fair value of goodwill is lower than its carrying amount, a goodwill impairment is indicated and goodwill is written down to its implied fair value. Subsequent increases in goodwill value are not recognized in the financial statements.
	Intangible Assets
	Intangible assets are being amortized on an accelerated basis over periods ranging from seven to ten years. Such assets are periodically evaluated as to the recoverability of their carrying value.
	Treasury Stock
	Treasury stock is stated at cost. Cost is determined based on the average cost of all shares.
	Income Taxes
	The Company accounts for income taxes in accordance with income tax accounting guidance (ASC 740, Income Taxes). The income tax accounting guidance results in two components of income tax expense: current and deferred. Current income tax expense reflects taxes to be paid or refunded for the current period by applying the provisions of the enacted tax law to the taxable income or excess of deductions over revenues. The Company determines deferred income taxes using the liability (or balance sheet) method. Under this method, the net deferred tax asset or liability is based on the tax effects of the differences between the book and tax bases of assets and liabilities, and enacted changes in tax rates and laws are recognized in the period in which they occur. Deferred income tax expense results from changes in deferred tax assets and liabilities between periods. Deferred tax assets are reduced by a valuation allowance if, based on the weight of evidence available, it is more likely than not that some portion or all of a deferred tax asset will not be realized.
	Tax positions are recognized if it is more likely than not, based on the technical merits, that the tax position will be realized or sustained upon examination. The term more likely than not means a likelihood of more than 50 percent; the terms examined and upon examination also include resolution of the related appeals or litigation processes, if any. A tax position that meets the more-likely-than-not recognition threshold is initially and subsequently measured as the largest amount of tax benefit that has a greater than 50 percent likelihood of being realized upon settlement with a taxing authority that has full knowledge of all relevant information. The determination of whether or not a tax position has met the more-likely-than-not recognition threshold considers the facts, circumstances and information available at the reporting date and is subject to management’s judgment. With a few exceptions, the Company is no longer subject to U.S. federal, state and local or non-U.S. income tax examinations by tax authorities for years before 2010. The Company recognizes interest and penalties, if any, on income taxes as a component of income tax expense.
	Earnings Per Share
	Basic earnings per share represents income available to common stockholders divided by the weighted-average number of common shares outstanding during each period. Diluted earnings per share reflects additional potential common shares that would have been outstanding if dilutive potential common shares had been issued, as well as any adjustment to income that would result from the assumed issuance. Potential common shares that may be issued by the Company relate solely to outstanding stock options and are determined using the treasury stock method.
	Treasury stock shares are not deemed outstanding for earnings per share calculations.
	Marketing Expenses
	Marketing costs are expensed as incurred.
	Reclassifications
	Certain reclassifications have been made to the 2012 and 2011 financial statements to conform to the 2013 financial statement presentation. These reclassifications had no effect on net income.

Effect_of_Recent_Accounting_St

Effect of Recent Accounting Standards	12 Months Ended
	Dec. 31, 2013
Accounting Changes And Error Corrections [Abstract]	'
Effect of Recent Accounting Standards	'
	Note 2: Effect of Recent Accounting Standards
	In September 2011, the FASB issued Accounting Standards Update (“ASU”) No. 2011-08 regarding the testing for goodwill impairment. The objective of this ASU is to simplify how entities, both public and nonpublic, test goodwill for impairment. Under the revised standard, an entity will be allowed to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test. The amendments are effective on annual or interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. Adoption of this standard has not had a material effect on the Company’s financial statements.
	In July 2012, the FASB issued ASU No. 2012-02 regarding testing indefinite-lived intangible assets for impairment other than goodwill. The objective of this ASU is to reduce the cost and complexity of performing an impairment test for indefinite-lived intangible assets by simplifying how an entity tests those assets for impairment and to improve consistency in impairment testing guidance among long-lived asset categories. Under this revised standard, an entity has the option first to assess qualitative factors to determine whether the existence of events and circumstances indicates that it is more likely than not that the indefinite-lived intangible asset is impaired. If, after assessing the totality of events and circumstances, an entity concludes that it is not more likely than not that the indefinite-lived intangible asset is impaired, then the entity is not required to take further action. However, if an entity concludes otherwise, then it is required to determine the fair value of the indefinite-lived intangible asset and perform the quantitative impairment test by comparing the fair value with the carrying amount. The amendments are effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012. Adoption of this standard has not had a material effect on the Company’s financial statements.
	In October 2012, the FASB issued ASU No. 2012-06, Business Combinations: Subsequent Accounting for an Indemnification Asset Recognized at the Acquisition Date as a Result of a Government-Assisted Acquisition of a Financial Institution. The objective of this ASU is to address the diversity in practice about how to interpret the terms on the same basis and contractual limitations when subsequently measuring an indemnification asset recognized in a government-assisted (Federal Deposit Insurance Corporation) acquisition of a financial institution that includes a loss-sharing agreement (indemnification agreement). When a reporting entity recognizes an indemnification asset as a result of a government-assisted acquisition of a financial institution and subsequently a change in the cash flows expected to be collected on the indemnification asset occurs (as a result of a change in cash flows expected to be collected on the assets subject to indemnification), the reporting entity should subsequently account for the change in the measurement of the indemnification asset on the same basis as the change in the assets subject to indemnification. Any amortization of changes in value should be limited to the contractual term of the indemnification agreement (i.e., the lesser of the term of the indemnification agreement and the remaining life of the indemnified assets). For public and nonpublic entities, the amendments are effective for fiscal years, and interim periods within those years, beginning on or after December 15, 2012. The amendments should be applied prospectively to any new indemnification assets acquired after the date of adoption and to indemnification assets existing as of the date of adoption arising from a government-assisted acquisition of a financial institution. Adoption of this standard has not had a significant impact on the valuation of the FDIC loss share receivable indemnification asset currently on the Company’s balance sheet.
	FASB also issued ASU 2013-02, which amended ASU 2011-05, Comprehensive Income, Topic 220: Presentation of Comprehensive Income, and establishes requirements and an effective date for amendments deferred by ASU 2011-12, Comprehensive Income (Topic 220): Deferral of the Effective Date for Amendments to the Presentation of Reclassification of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05. The update requires public companies to report information on reclassifications out of accumulated other comprehensive income (AOCI), in their financial statements in one place (either in the financial statements or in a single note) using information currently required to be disclosed elsewhere in the financial statements. Public companies are also required to comply with the requirements of this ASU at each reporting date. The information may be condensed in accordance with the level of detail required by Subtopic 270-10. The amendments in the update do not change the requirements for reporting net income or other comprehensive income in the financial statements. The new disclosure requirement takes effect prospectively for public companies in interim and annual reporting periods beginning after December 15, 2012. The Company adopted this standard on January 1, 2013. The effect of adopting this standard increased our disclosure of items reclassified out of accumulated other comprehensive income.

Restriction_on_Cash_and_Due_Fr

Restriction on Cash and Due From Banks	12 Months Ended
	Dec. 31, 2013
Brokers And Dealers [Abstract]	'
Restriction on Cash and Due From Banks	'
	Note 3: Restriction on Cash and Due From Banks
	The Bank is required to maintain reserve funds in cash and/or on deposit with the Federal Reserve Bank. The reserve required at December 31, 2013 was $2,423,000.

Securities

Securities	12 Months Ended
	Dec. 31, 2013
Investments Debt And Equity Securities [Abstract]	'
Securities	'
	Note 4: Securities
	The amortized cost and approximate fair values, together with gross unrealized gains and losses, of securities are as follows (thousands):
		Amortized			Gross			Gross			Approximate
		Cost			Unrealized			Unrealized			Fair Value
					Gains			Losses
	Available-for-Sale Securities:
	December 31, 2013:
	U.S. government sponsored entities	$	23,594		$	45		$	(100	)	$	23,539
	Mortgage-backed securities:
	U.S. Government sponsored entities-residential		59,565			793			(205	)		60,153
	Private label-residential		1,895			56			0			1,951
	State and political subdivisions		54,408			326			(2,279	)		52,455
		$	139,462		$	1,220		$	(2,584	)	$	138,098
	December 31, 2012:
	U.S. government sponsored entities	$	19,668		$	414		$	(0	)	$	20,082
	Mortgage-backed securities:
	U.S. Government sponsored entities-residential		66,735			1,389			(49	)		68,075
	Private label-residential		3,945			131			(53	)		4,023
	State and political subdivisions		39,137			1,816			(113	)		40,840
		$	129,485		$	3,750		$	(215	)	$	133,020
	The amortized cost and fair value of securities available for sale at December 31, 2013, by contractual maturity, are shown below (thousands). Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.
		Amortized Cost			Fair Value
	Within one year	$	2,808		$	2,843
	One to five years		22,348			22,308
	Five to ten years		7,204			7,170
	After ten years		45,642			43,673
			78,002			75,994
	Mortgage-backed securities		61,460			62,104
	Totals	$	139,462		$	138,098
	The carrying value of securities pledged as collateral, to secure public deposits and for other purposes, was $66,965,000 at December 31, 2013, and $61,727,000 at December 31, 2012.
	Gross gains of $1,044,000 and gross losses of $36,000 resulting from sales of available-for sale securities were realized during 2013. The $36,000 loss resulted from the sale of a private-label collateralized mortgage obligation for which other-than-temporary impairment charges were recognized in prior periods. The $1,008,000 net gain in 2013 is a reclassification from accumulated other comprehensive income and is included in the net realized gains on sales of available-for-sale securities line item in the income statement. The related $343,000 tax expense is a reclassification from accumulated other comprehensive income and is included in the provision for income taxes line item in the income statement. In 2012, gross gains of $1,174,000 and gross losses of $0 were realized. Gross gains of $1,830,000 and gross losses of $10,000 resulting from sales of available-for sale securities were realized in 2011. Gross gains are determined under the specific identification method.
	Certain investments in debt securities are reported in the financial statements at an amount less than their historical cost. These declines primarily resulted from recent changes in market interest rates, failure of certain investments to maintain consistent credit quality ratings, changes in the market’s perception of the current risks or failure to meet projected earnings targets.
	The table below indicates the gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at December 31, 2013 and 2012 (thousands):
		Less than 12 months						12 months or more						Total
		Fair			Unrealized			Fair			Unrealized			Fair		Unrealized
		Value			Loss			Value			Loss			Value		Loss
	December 31, 2013
	U.S. government sponsored entities	$	4,727		$	(100	)	$	0		$	0		$	4,727	$	(100	)
	Mortgage-backed securities:
	U.S. Government-sponsored entities-residential		17,547			(205	)		0			0			17,547		(205	)
	Municipal securities		31,351			(1,800	)		3,726			(479	)		35,077		(2,279	)
	Total Securities	$	53,625		$	(2,105	)	$	3,726		$	(479	)	$	57,351	$	(2,584	)
	December 31, 2012
	Mortgage-backed securities:
	U.S. Government-sponsored entities-residential	$	12,902		$	(48	)	$	1,352		$	(1	)	$	14,254	$	(49	)
	Private label-residential		0			0			604			(53	)		604		(53	)
	Municipal securities		6,656			(113	)		0			0			6,656		(113	)
	Total Securities	$	19,558		$	(161	)	$	1,956		$	(54	)	$	21,514	$	(215	)
	The unrealized losses on the Company’s investments at December 31, 2013 were caused by interest rate increases. For the U.S. government sponsored entities and municipal securities, the contractual terms do not permit the issuer to settle the securities at a price less than the amortized cost bases of the investments. For the mortgage-backed securities, the Company expects to recover the amortized cost basis over the remaining term. All securities are regularly reviewed for other than temporary credit impairment. The review consists of many factors, including but not limited to, the nature of the investment, credit ratings and financial condition of the issuer, the existence of any government or agency guarantees, cash flows of the underlying collateral and market conditions. Because the decline in market value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell the investments and it is not more likely than not the Company will be required to sell the investments before recovery of their amortized cost bases, which may be maturity, the Company does not consider those investments to be to be other-than-temporarily impaired at December 31, 2013.
	Credit Losses Recognized on Investments
	The following table provides information about debt securities for which only a credit loss was recognized in income and other losses are recorded in other comprehensive income (thousands):
		Accumulated
		Credit Losses
		2013			2012			2011
	Credit losses on debt securities held
	Balance, beginning of year	$	(119	)	$	(118	)	$	(170	)
	Additions related to other-than-temporary losses not previously recognized		0			(35	)		0
	Reductions related to losses realized which were previously recognized		119			34			52
	Balance, end of period	$	0		$	(119	)	$	(118	)
	The beginning accumulated credit loss balance related to one private-label collateralized mortgage obligation. That security was sold during the first quarter of 2013 with an additional loss of $36,000 realized at the time of sale.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income (Loss)	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Accumulated Other Comprehensive Income (Loss)	'
	Note 5: Accumulated Other Comprehensive Income (Loss)
	The components of accumulated other comprehensive income (loss), included in stockholders’ equity, are as follows (thousands):
		December 31,			December 31,
		2013			2012
	Net unrealized gain (loss) on available-for-sale securities	$	(1,364	)	$	3,588
	Net unrealized loss on available-for-sale securities for which a portion of an other-than-temporary impairment has been recognized in income		0			(53	)
			(1,364	)		3,535
	Tax effect		464			1,202
	Net-of-tax amount	$	(900	)	$	2,333

Loans_and_Allowance_for_Loan_L

Loans and Allowance for Loan Losses	12 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
Loans and Allowance for Loan Losses	'
	Note 6: Loans and Allowance for Loan Losses
	Categories of loans at December 31, include (thousands):
		2013			2012
	Commercial and industrial	$	36,792		$	54,961
	Commercial real estate		189,660			179,905
	Agricultural		35,160			33,679
	Residential real estate		131,032			127,007
	Consumer		6,766			6,319
	Total loans		399,410			401,871
	Less: Net deferred loan fees, premiums and discounts		86			58
	Allowance for loan losses		(4,053	)		(4,760	)
	Net loans	$	395,443		$	397,169
	The risk characteristics of each significant loan portfolio segment are as follows:
	Commercial and Industrial
	Commercial and industrial loans are primarily based on the identified cash flows of the borrower and secondarily on the underlying collateral provided by the borrower. The cash flows of borrowers, however, may not be as expected and the collateral securing these loans may fluctuate in value. Most commercial and industrial loans are secured by the assets being financed or other business assets, such as accounts receivable or inventory, and may include a personal guarantee. Short-term loans may be made on an unsecured basis. In the case of loans secured by accounts receivable, the availability of funds for the repayment of these loans may be substantially dependent on the ability of the borrower to collect amounts due from its customers.
	Commercial Real Estate
	Commercial real estate loans are viewed primarily as cash flow loans and secondarily as loans secured by real estate. Commercial real estate lending typically involves higher loan principal amounts and the repayment of these loans is generally dependent on the successful operation of the property securing the loan or the business conducted on the property securing the loan. Commercial real estate loans may be more adversely affected by conditions in the real estate markets or in the general economy. The characteristics of properties securing the Company’s commercial real estate portfolio are diverse, but with geographic location almost entirely in the Company’s market area. Management monitors and evaluates commercial real estate loans based on collateral, geography and risk grade criteria. In general, the Company avoids financing single purpose projects unless other underwriting factors are present to help mitigate risk. In addition, management tracks the level of owner-occupied commercial real estate versus non-owner-occupied loans.
	Agricultural
	Agricultural loans are viewed primarily as cash flow loans where repayment comes from sales of crops and secondarily as loans secured by real estate, farm equipment or livestock. Repayment of these loans is generally dependent on the successful operation of the farming operation and is highly dependent on weather conditions.
	Residential and Consumer
	Residential and consumer loans consist of two segments—residential mortgage loans and personal loans. For residential mortgage loans that are secured by 1-4 family residences and are generally owner-occupied, the Company generally establishes a maximum loan-to-value ratio and requires private mortgage insurance if that ratio is exceeded. Home equity loans are typically secured by a subordinate interest in 1-4 family residences, and consumer personal loans are secured by consumer personal assets, such as automobiles or recreational vehicles. Some consumer personal loans are unsecured, such as small installment loans and certain lines of credit. Repayment of these loans is primarily dependent on the personal income of the borrowers, which can be impacted by economic conditions in their market areas, such as unemployment levels. Repayment can also be impacted by changes in property values on residential properties. Risk is mitigated by the fact that the loans are of smaller individual amounts and spread over a large number of borrowers.
	The following tables present the balance of the allowance for loan losses based on portfolio segment for the years ended December 31, 2013, 2012 and 2011(thousands):
	Allowance for loan losses:
		Commercial			Commercial			Agricultural			Residential			Residential			Consumer			Total
					Real Estate						1-4 Family			Home
														Equity
	January 1, 2011	$	474		$	2,057		$	184		$	528		$	337		$	134		$	3,714
	Charge-offs		(350	)		(1,300	)		(2	)		(262	)		(140	)		(198	)		(2,252	)
	Recoveries		16			167			6			9			3			70			271
	Provision		1,240			1,448			43			98			(5	)		111			2,935
	December 31, 2011		1,380			2,372			231			373			195			117			4,668
	Charge-offs		(1,513	)		(2,239	)		0			(343	)		(161	)		(109	)		(4,365	)
	Recoveries		7			59			3			15			12			74			170
	Provision		1,823			2,093			(149	)		415			153			(48	)		4,287
	December 31, 2012		1,697			2,285			85			460			199			34			4,760
	Charge-offs		(2,883	)		(415	)		0			(120	)		(169	)		(33	)		(3,620	)
	Recoveries		10			230			0			17			1			65			323
	Provision		2,633			(138	)		(16	)		0			174			(63	)		2,590
	December 31, 2013	$	1,457		$	1,962		$	69		$	357		$	205		$	3		$	4,053
	The following tables present the balance in the allowance for loan losses and the recorded investment in loans based on portfolio segment and impairment method as of December 31, 2013 and December 31, 2012 (thousands):
		Evaluated for Impairment
		Individually			Collectively			Total
	December 31, 2013
	Allowance for loan losses:
	Commercial	$	108		$	1,349		$	1,457
	Commercial Real Estate		418			1,544			1,962
	Agricultural		0			69			69
	Residential—1-4 Family		0			357			357
	Residential—Home equity		0			205			205
	Consumer		0			3			3
	Total	$	526		$	3,527		$	4,053
	Loans:
	Commercial	$	902		$	35,890		$	36,792
	Commercial Real Estate		5,364			184,296			189,660
	Agricultural		38			35,122			35,160
	Residential—1-4 Family		952			101,829			102,781
	Residential—Home equity		44			28,207			28,251
	Consumer		9			6,757			6,766
	Total	$	7,309		$	392,101		$	399,410
		Evaluated for Impairment
		Individually			Collectively			Total
	December 31, 2012
	Allowance for loan losses:
Commercial	$	1,029		$	668		$	1,697
Commercial Real Estate		413			1,872			2,285
Agricultural		0			85			85
Residential—1-4 Family		1			459			460
Residential—Home equity		0			199			199
Consumer		0			34			34
Total	$	1,443		$	3,317		$	4,760
Loans:
Commercial	$	4,489		$	50,472		$	54,961
Commercial Real Estate		5,524			174,381			179,905
Agricultural		75			33,604			33,679
Residential—1-4 Family		1,008			95,659			96,667
Residential—Home equity		36			30,304			30,340
Consumer		16			6,303			6,319
Total	$	11,148		$	390,723		$	401,871
The following table presents the Company’s corporate and consumer credit exposure by category and standard regulatory classification as of December 31, 2013 and December 31, 2012 (thousands):
Corporate Credit Exposure
Credit Risk Profile by Creditworthiness Category:
	Commercial						Commercial Real Estate						Agricultural
December 31,	2013			2012			2013			2012			2013			2012
Pass	$	32,436		$	47,481		$	173,630		$	161,671		$	35,122		$	33,378
Other Assets Especially Mentioned		1,800			2,647			3,377			3,983			0			226
Substandard		2,410			4,687			12,653			14,251			38			75
Doubtful		146			146			0			0			0			0
Total	$	36,792		$	54,961		$	189,660		$	179,905		$	35,160		$	33,679
Consumer Credit Exposure
Credit Risk Profile by Internally Assigned Grade
	Residential-1 to 4 Family						Residential-Home Equity						Consumer
December 31,	2013			2012			2013			2012			2013			2012
Pass	$	100,362		$	94,262		$	28,072		$	30,110		$	6,696		$	6,295
Substandard		2,419			2,405			179			230			70			24
Total	$	102,781		$	96,667		$	28,251		$	30,340		$	6,766		$	6,319
The Company evaluates the loan risk grading system definitions and allowance for loan loss methodology on an ongoing basis. No significant changes were made to either during the past year.
For purposes of monitoring the credit quality and risk characteristics of its commercial portfolio segment, the Company disaggregates the segment into the following classes: commercial and industrial, commercial real estate and agricultural.
To facilitate the monitoring of credit quality within the commercial portfolio segment, and for purposes of analyzing historical loss rates used in the determination of the allowance for loan losses for the commercial portfolio segment, the Company utilizes the following categories of credit grades: pass, other assets especially mentioned, substandard, doubtful or loss. The five categories, which are derived from standard regulatory rating definitions, are assigned upon initial approval of credit to borrowers and updated periodically thereafter.
Pass ratings, which are assigned to those borrowers that do not have identified potential or well defined weaknesses and for which there is a high likelihood of orderly repayment, are updated periodically based on the size and credit characteristics of the borrower. All other categories are updated on a quarterly basis.
The Company assigns an Other Assets Especially Mentioned rating to loans and leases that have potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may, at some future date, result in the deterioration of the repayment prospects for the loan or the Company’s credit position.
The Company assigns a substandard rating to loans that are inadequately protected by the current sound worth and paying capacity of the borrower or of the collateral pledged. Substandard loans have well defined weaknesses or weaknesses that could jeopardize the orderly repayment of the debt. Loans in this grade also are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies noted are not addressed and corrected.
The Company assigns a doubtful rating to loans that have all the attributes of a substandard rating with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. The possibility of loss is extremely high, but because of certain important and reasonable specific pending factors that may work to the advantage of and strengthen the credit quality of the loan or lease, its classification as an estimated loss is deferred until its more exact status may be determined. Pending factors may include a proposed merger or acquisition, liquidation proceeding, capital injection, perfecting liens on additional collateral or refinancing plans. Loans rated as loss are loans with advances in excess of calculated current fair value which are considered uncollectible.
For purposes of monitoring the credit quality and risk characteristics of its consumer portfolio segment, the Company disaggregates the segment into the following classes: residential mortgage, home equity and other consumer. The Company considers repayment performance as the best indicator of credit quality for residential mortgage and consumer loans. Consumer loans that have principal and interest payments that have become past due ninety days are classified as substandard unless such loans are both well secured and in the process of collection. All other loans are classified as pass. Well secured loans are collateralized by perfected security interests in real and/or personal property for which the Company estimates proceeds from sale would be sufficient to recover the outstanding principal and accrued interest balance of the loan and pay all costs to sell the collateral. The Company considers a loan in the process of collection if collection efforts or legal action is proceeding and the Company expects to collect funds sufficient to bring the loan current or recover the entire outstanding principal and accrued interest balance.
Generally, all classes of loans are placed on non-accrual status at ninety days past due and interest is considered a loss, unless the loan is well-secured and in the process of collection. Most impaired loans are on non-accrual status. Past due status is based on the contractual terms of the loan. Payments made while a loan is on non-accrual are treated as reductions of principal. Typically, loans are not returned to accrual status until all loan payments have been current for at least six months.
The following tables present the Company’s past due and non-accrual loans as of December 31, 2013 and December 31, 2012 (thousands):
December 31, 2013:
	Past Due Days												Current			Total			90+ Days			Non-
																Financing			&			accrual
	30-59			60-89			90+			Total						Receivables			Accruing
Commercial	$	309		$	22		$	432		$	763		$	36,029		$	36,792		$	32		$	890
Commercial Real Estate		212			0			2,789			3,001			186,659			189,660			0			3,402
Agricultural		0			25			28			53			35,107			35,160			0			38
Residential—1 to 4 Family		0			150			502			652			102,129			102,781			0			1,175
Residential—Home Equity		40			32			100			172			28,079			28,251			0			164
Consumer		10			1			24			35			6,731			6,766			0			65
Total	$	571		$	230		$	3,875		$	4,676		$	394,734		$	399,410		$	32		$	5,734
December 31, 2012:
	Past Due Days												Current			Total			90+ Days			Non-
																Financing			&			accrual
	30-59			60-89			90+			Total						Receivables			Accruing
Commercial	$	65		$	91		$	4,594		$	4,750		$	50,211		$	54,961		$	620		$	4,418
Commercial Real Estate		602			26			3,590			4,218			175,687			179,905			0			3,950
Agricultural		0			0			53			53			33,626			33,679			0			75
Residential—1 to 4 Family		460			24			540			1,024			95,643			96,667			134			1,116
Residential—Home Equity		54			3			173			230			30,110			30,340			24			196
Consumer		22			38			10			70			6,249			6,319			0			60
Total	$	1,203		$	182		$	8,960		$	10,345		$	391,526		$	401,871		$	778		$	9,815
The following tables present impaired loan information at and for the years ended December 31, 2013 and 2012 and the related allowance for loan losses. Interest income recognized is not materially different than interest income that would have been recognized on a cash basis (thousands):
	December 31, 2013									December 31, 2012
	Recorded			Unpaid			Related			Recorded			Unpaid			Related
	Investment			Principal			Allowance			Investment			Principal			Allowance
				Balance									Balance
With no related allowance recorded:
Commercial	$	342		$	497		$	0		$	1,255		$	1,571		$	0
Commercial real estate		3,275			3,727			0			3,940			4,145			0
Agricultural		38			52			0			75			87			0
Residential—1 to 4 Family		952			1,086			0			1,008			1,126			0
Residential—Home equity		29			39			0			36			40			0
Consumer		9			10			0			16			16			0
With an allowance recorded:
Commercial	$	560		$	569		$	108		$	3,234		$	3,290		$	1,029
Commercial real estate		2,089			2,174			418			1,584			1,665			413
Agricultural		0			0			0			0			0			0
Residential—1 to 4 Family		0			0			0			0			80			1
Residential—Home equity		15			14			0			0			0			0
Consumer		0			0			0			0			2			0
Total:
Commercial	$	902		$	1,066		$	108		$	4,489		$	4,861		$	1,029
Commercial real estate		5,364			5,901			418			5,524			5,810			413
Agricultural		38			52			0			75			87			0
Residential—1 to 4 Family		952			1,086			0			1,008			1,206			1
Residential—Home equity		44			53			0			36			40			0
Consumer		9			10			0			16			18			0
	$	7,309		$	8,168		$	526		$	11,148		$	12,022		$	1,443
	For the year ended						For the year ended						For the year ended
	December 31, 2013						December 31, 2012						December 31, 2011
	Average			Interest			Average			Interest			Average			Interest
	Recorded			Income			Recorded			Income			Recorded			Income
	Investment			Recognized			Investment			Recognized			Investment			Recognized
With no related allowance recorded:
Commercial	$	694		$	51		$	1,218		$	5		$	982		$	0
Commercial real estate		3,174			211			4,744			202			3,659			136
Agricultural		45			3			45			0			0			0
Residential—1 to 4 Family		963			29			1,293			38			1,105			51
Residential—Home equity		35			1			28			0			0			0
Consumer		12			1			12			0			0			0
With an allowance recorded:
Commercial	$	2,725		$	0		$	3,264		$	0		$	1,090		$	0
Commercial real estate		2,373			0			3,928			0			2,191			0
Agricultural		0			0			9			0			0			0
Residential—1 to 4 Family		29			0			40			0			0			0
Residential—Home equity		10			0			0			0			0			0
Consumer		0			0			1			0			0			0
Total:
Commercial	$	3,419		$	51		$	4,482		$	5		$	2,072		$	0
Commercial real estate		5,547			211			8,672			202			5,850			136
Agricultural		45			3			54			0			0			0
Residential—1 to 4 Family		992			29			1,333			38			1,105			51
Residential—Home equity		45			1			28			0			0			0
Consumer		12			1			13			0			0			0
	$	10,060		$	296		$	14,582		$	245		$	9,027		$	187
The following tables present information regarding troubled debt restructurings (“TDRs”) by segment: (dollars in thousands):
Newly classified troubled debt restructurings (dollars in thousands):
	Year Ended December 31, 2013									Year Ended December 31, 2012
				Outstanding Recorded Investment									Outstanding Recorded Investment
	Number of			Pre-Modification			Post-			Number of			Pre-Modification			Post-
	Contracts						Modification			Contracts						Modification
Commercial		1		$	24		$	22			3		$	473		$	399
Commercial real estate		2			1,111			850			0			0			0
Residential		1			15			14			1			42			36
Consumer		1			8			2			2			20			16
The following table provides information on how restructured loans were modified during the years ended December 31, 2013 and 2012 (dollars in thousands):
	Years Ended
	December 31, 2013									December 31, 2012
	Recorded			Amount			Allowance			Recorded			Amount			Allowance
	Investment			charged off			Increased			Investment			charged off			Increased
Extended maturities	$	463		$	0		$	0		$	451		$	0		$	0
Extended maturities and lowered interest rate		423			0			8			0			0			0
Lowered interest rate		2			0			0		$	0			0			0
All TDRs are considered impaired loans. The Company considers TDRs that become 30 days or more past due under the modified terms as subsequently defaulted. The Company had the following TDR’s modified in the past twelve months that subsequently defaulted during the years ended December 31, 2013 and December 31, 2012 (dollars in thousands):
	Years Ending
	December 31, 2013						December 31, 2012
	Number of			Recorded			Number of			Recorded
	Contracts			Investment			Contracts			Investment
Consumer		1		$	22			1		$	2
The allowance for loan loss on the above restructured loan is based on present value of future expected cash flows and takes into account the past due payments.
The Company acquired loans from American National Bank on March 19, 2010 and by its acquisition by merger of Community National Corporation on December 31, 2009. At the time of each acquisition, there was evidence of deterioration of credit quality since origination associated with these loans for which it was probable, at acquisition, that all contractually required payments would not be collected. As of December 31, 2013 and 2012, such acquired credit-impaired loans represent less than one percent of total loans and the disclosures required under ASC 310-30 are not considered material to the overall financial statements.

Premises_and_Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2013
Property Plant And Equipment [Abstract]	'
Premises and Equipment	'
	Note 7: Premises and Equipment
	Major classifications of premises and equipment, stated at cost, were as follows (thousands):
		2013			2012
	Land	$	4,474		$	4,588
	Buildings and improvements		18,537			18,922
	Leasehold improvements		445			420
	Equipment		11,689			12,638
		$	35,145		$	36,568
	Less accumulated depreciation and amortization		(18,250	)		(18,151	)
	Net premises and equipment	$	16,895		$	18,417

Operating_Leases

Operating Leases	12 Months Ended
	Dec. 31, 2013
Leases [Abstract]	'
Operating Leases	'
	Note 8: Operating Leases
	The Bank has entered into certain operating leases for some of its branch locations. Operating lease expense was $99,000, $94,000, and $80,000 for years 2013, 2012, and 2011, respectively. The minimum future lease payments for each of the next five years are as follows (thousands):
	2014	$	91
	2015		91
	2016		50
	2017		42
	2018		42

Goodwill

Goodwill	12 Months Ended
	Dec. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]	'
Goodwill	'
	Note 9: Goodwill
	All goodwill is allocated to the banking segment of the business and totaled $3,625,000 at December 31, 2013 and December 31, 2012.

Other_Intangible_Assets

Other Intangible Assets	12 Months Ended
	Dec. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]	'
Other Intangible Assets	'
	Note 10: Other Intangible Assets
	The carrying basis and accumulated amortization of recognized intangible assets at December 31, 2013 and 2012, were (thousands):
		2013					2012
		Gross Carrying		Accumulated			Gross Carrying		Accumulated
		Amount		Amortization			Amount		Amortization
	Core deposit intangibles	$	1,523	$	(1,211	)	$	4,515	$	(3,959	)
	Amortization expense for the years ended December 31, 2013, 2012 and 2011, was $244,000, $275,000 and $353,000, respectively. Estimated amortization expense for each of the following five years is (thousands):
	2014	$	179
	2015		89
	2016		44
	2017		0
	2018		0

InterestBearing_Deposits

Interest-Bearing Deposits	12 Months Ended
	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Interest-Bearing Deposits	'
	Note 11: Interest-Bearing Deposits
	Interest-bearing deposits in denominations of $100,000 or more were $18,328,000 on December 31, 2013, and $26,991,000 on December 31, 2012. At December 31, 2013, the scheduled maturities of time deposits were as follows (thousands):
	2014	$	54,147
	2015		17,282
	2016		8,577
	2017		5,966
	2018		5,760
	Thereafter		4,602
		$	96,334
	Included in time deposits at December 31, 2013 and 2012 were $430,000 and $1,325,000 respectively, of deposits which were obtained through the Certificate of Deposit Account Registry Service (CDARS). This service allows deposit customers to maintain fully insured balances in excess of the $250,000 FDIC insurance limit without the inconvenience of having multi-banking relationships. Under the reciprocal program in which the Bank is currently participating, customers agree to allow the Bank to place their deposits with other participating banks in the CDARS program in insurable amounts under $250,000. In exchange, other banks in the program agree to place their deposits with the Bank also in insurable amounts under $250,000.

ShortTerm_Borrowings

Short-Term Borrowings	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Short-Term Borrowings	'
	Note 12: Short-Term Borrowings
	The Company had no short-term borrowings at December 31, 2013 or December 31, 2012.
	The Company has a line of credit of $30.0 million with the Federal Home Loan Bank of Cincinnati and two lines of credit with two other correspondent banks totaling $20.0 million at December 31, 2013. The Company has also pledged $7.5 million of securities with the Federal Reserve Bank to secure discount window borrowing if necessary.

LongTerm_Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Long-Term Debt	'
	Note 13: Long-Term Debt
	Long-term debt consisted of the following components (thousands):
		2013		2012
	Federal Home Loan Bank advances	$	5,000	$	5,000
	Junior subordinated debentures		9,310		10,310
	Total	$	14,310	$	15,310
	The Federal Home Loan Bank advances are secured by a blanket pledge of certain mortgage loans totaling $110,439,838 at December 31, 2013. The advance of $5.0 million, at a fixed interest rate of 2.82%, matures on January 14, 2015. Until maturity, the Federal Home Loan Bank has the option quarterly to terminate the advance and require full payment.
	On June 25, 2007, NB&T Statutory Trust III (“Trust III”), a wholly owned subsidiary of the Company, closed a pooled private offering of 10,000 Capital Securities with a liquidation amount of $1,000 per security. The proceeds of the offering were loaned to the Company in exchange for junior subordinated debentures with terms similar to the Capital Securities. The sole assets of Trust III are the junior subordinated debentures of the Company and payments thereunder. The junior subordinated debentures and the back-up obligations, in the aggregate, constitute a full and unconditional guarantee by the Company of the obligations of Trust III under the Capital Securities. Distributions on the Capital Securities were payable quarterly at a fixed interest rate of 7.071% through September 6, 2012 and thereafter at the annual rate of 1.50% over the 3 month LIBOR, which was 1.74% at December 31, 2013. Distributions on the Capital Securities are included in interest expense in the consolidated financial statements. These securities are considered Tier I capital (with certain limitations applicable) under current regulatory guidelines.
	The junior subordinated debentures are subject to mandatory redemption, in whole or in part, upon repayment of the Capital Securities at maturity or their earlier redemption at the liquidation amount. Subject to the Company having received prior approval of the Federal Reserve, if then required, the Capital Securities are redeemable prior to the maturity date of September 6, 2037, at the option of the Company. Since September 6, 2012, the Capital Securities are redeemable at par. The Company has the option to defer distributions on the Capital Securities from time to time for a period not to exceed 20 consecutive semi-annual periods.
	As of December 31, 2013 and December 31, 2012, the outstanding principal balance of the Capital Securities was $9,000,000 and $10,000,000, respectively. In June 2013, the Company extinguished $1.0 million in debt at a discount with a gain of $300,000 recognized. The Company accounts for its investment in the trust as assets, its subordinated debentures as debt, and the interest paid thereon as interest expense.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Note 14: Income Taxes
	The provision for income taxes includes these components (thousands):
		2013			2012			2011
	Taxes currently payable	$	1,092		$	1,220		$	1,263
	Deferred income taxes		(46	)		(227	)		40
	Income tax expense	$	1,046		$	993		$	1,303
	A reconciliation of income tax expense at the statutory rate to actual income tax expense is shown below (thousands):
		2013			2012			2011
	Computed at the statutory rate (34%)	$	1,798		$	1,656		$	1,735
	Increase (decrease) resulting from
	Tax exempt interest		(464	)		(291	)		(153	)
	ESOP dividend		(131	)		(144	)		(158	)
	Bank owned life insurance		(159	)		(284	)		(165	)
	Other		2			56			44
	Actual tax expense	$	1,046		$	993		$	1,303
	The tax effects of temporary differences related to deferred taxes shown on the balance sheets were (thousands):
		2013			2012
	Deferred tax assets
	Allowance for loan losses	$	1,337		$	1,563
	Accruals not currently deductible		225			235
	Nonaccrual loan interest collected		271			280
	Stock options not currently deductible		116			100
	OREO expenses not currently deductible		240			403
	Other-than-temporary impairment charge		0			37
	Unrealized losses on available-for-sale securities		464			0
	Other		16			23
			2,669			2,641
	Deferred tax liabilities
	Deferred loan costs		(242	)		(214	)
	Depreciation		(477	)		(537	)
	FHLB stock dividends		(1,453	)		(1,453	)
	Prepaid assets currently deductible		(32	)		(53	)
	Unrealized gains on available-for-sale securities		0			(1,202	)
	ANB purchase		(981	)		(1,423	)
	Non-taxable purchase accounting adjustments		(260	)		(262	)
	Bad debt recapture		0			(131	)
	Intangible asset amortization		(709	)		(544	)
	Other		(35	)		(48	)
			(4,189	)		(5,867	)
	Net deferred tax liability	$	(1,520	)	$	(3,226	)

Regulatory_Matters

Regulatory Matters	12 Months Ended
	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Regulatory Matters	'
	Note 15: Regulatory Matters
	The Company and the Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company and the Bank must meet specific capital guidelines that involve quantitative measures of assets, liabilities and certain off-balance-sheet items as calculated under regulatory accounting practices. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. Furthermore, the regulators could require adjustments to regulatory capital not reflected in these financial statements.
	Quantitative measures established by regulation to ensure capital adequacy require the Company and the subsidiary Bank to maintain minimum amounts and ratios (set forth in the table below) of total and Tier I capital (as defined in the regulations) to risk-weighted assets (as defined), and of Tier I capital (as defined) to average assets (as defined). Management believes, as of December 31, 2013, that the Company and the Bank met all capital adequacy requirements to which they were subject.
	As of December 31, 2013, the Company and the Bank met the capital requirements to be deemed well capitalized under the regulatory framework for prompt corrective action. There are no conditions or events since that notification that management believes have changed the Company’s and Bank’s category.
	The Company’s and the Bank’s actual and required capital amounts and ratios are presented in the following table (dollars in thousands):
		Actual					For Capital Adequacy					To Be Well Capitalized
							Purposes					Under Prompt
												Corrective Action
												Provisions
		Amount		Ratio			Amount		Ratio			Amount		Ratio
	As of December 31, 2013
	Total Risk-Based Capital to Risk-Weighted Assets:
	Consolidated	$	79,041		19.1	%	$	33,107		8	%		N/A		N/A
	Bank		71,729		17.35			33,080		8		$	41,349		10	%
	Tier I Capital to Risk-Weighted Assets:
	Consolidated		74,988		18.12			16,553		4			N/A		N/A
	Bank		67,676		16.37			16,540		4			24,810		6
	Tier I Capital to Average Assets:
	Consolidated		74,988		11.56			25,952		4			N/A		N/A
	Bank		67,676		10.41			25,992		4			32,490		5
	As of December 31, 2012
	Total Risk-Based Capital to Risk-Weighted Assets:
	Consolidated	$	79,975		19.51	%	$	32,791		8	%		N/A		N/A
	Bank		71,899		17.55			32,766		8		$	40,957		10	%
	Tier I Capital to Risk-Weighted Assets:
	Consolidated		75,215		18.35			16,396		4			N/A		N/A
	Bank		67,139		16.39			16,383		4			24,574		6
	Tier I Capital to Average Assets:
	Consolidated		75,215		11.27			26,701		4			N/A		N/A
	Bank		67,139		10.12			26,534		4			33,167		5
	The Bank is subject to certain restrictions on the amount of dividends that it may declare without prior regulatory approval. At December 31, 2013, approximately $10,000 in retained earnings were available for dividend declaration without prior regulatory approval.

Related_Party_Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2013
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	Note 16: Related Party Transactions
	The Bank had loans outstanding to executive officers, directors, significant shareholders and their affiliates (related parties). A summary of the related party loan activity follows (thousands):
		2013			2012
	Balance, January 1	$	3,777		$	3,011
	New loans		407			1,239
	Payments		(1,437	)		(95	)
	Other changes		0			(378	)
	Balance, December 31	$	2,747		$	3,777
	In management’s opinion, such loans and other extensions of credit and deposits were made in the ordinary course of business and were made on substantially the same terms (including interest rates and collateral) as those prevailing at the time for comparable transactions with other persons. Further, in management’s opinion, these loans did not involve more than normal risk of collectability or present other unfavorable features. Other changes represent reclassification of a loan previously reported as a related party transaction where the borrower is no longer a related party.
	Deposits from related parties held by the Bank at December 31, 2013 and 2012 totaled $1,172,000 and $1,255,000 respectively.

Employee_Benefits

Employee Benefits	12 Months Ended
	Dec. 31, 2013
Compensation And Retirement Disclosure [Abstract]	'
Employee Benefits	'
	Note 17: Employee Benefits
	The Company has a retirement savings 401(k) plan covering substantially all employees. Employees may contribute up to 50% of their compensation. The Bank’s plan was amended in 2013, and the Bank will now match 100% of the first 3% of compensation contributed by an employee and 50% of the next 2% of compensation contributed by an employee. In 2012 and 2011, the Bank matched up to 3% of an employee’s compensation for the first 8% of their compensation contributed to the plan. Employer contributions charged to expense for 2013, 2012 and 2011 were $273,000, $164,000, and $195,000, respectively.
	Also, the Bank has a deferred compensation agreement with one retired officer. The agreement provides level monthly or annual payments for twenty years after retirement. The charge to expense for the agreement was $43,000, $45,000 and $47,000 for 2013, 2012 and 2011, respectively. Such charges reflect the straight-line interest accrual using a 6.5% discount factor.
	The Company sponsors an employee stock ownership plan (ESOP) that covers substantially all employees who meet minimum age and length of service requirements. Shares of the Company’s common stock held by the ESOP were purchased with the proceeds of borrowings from the Company. In December 2010, the Plan’s debt, which was due to mature in 2011, was paid in full and all remaining shares were released for allocation. There was no ESOP compensation expense in 2013, 2012 and 2011 due to all shares being fully allocated. Total ESOP shares, which were fully allocated, were 308,712 and 351,463, respectively, as of December 31, 2013 and 2012.

Stock_Option_Plans

Stock Option Plans	12 Months Ended
	Dec. 31, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Stock Option Plans	'
	Note 18: Stock Option Plans
	The Company adopted an equity plan in 2006, which is shareholder approved and permits the Company to grant options, restricted stock or stock appreciation rights of up to 270,000 shares of common stock. The Company believes that such awards better align the interests of its directors and employees with those of its shareholders. Option awards are generally granted with an exercise price equal to the market price of the Company’s stock at the date of grant; those option awards generally vest based on three years of continuous service and have a ten-year contractual term. The previous plan, which was terminated in 2006, still had options to purchase 25,000 shares outstanding at December 31, 2013. These options vest over five years. In addition, an option to purchase 30,000 shares was awarded to the Company’s President upon his employment, which vested over five years. Certain option and share awards provide for an exchange of unvested options for a cash payment or shares of stock if there is a change in control (as defined in the plan). The compensation cost for the stock option expense recognized in 2013, 2012 and 2011 was calculated for all grants based on the grant date’s fair value and totaled $192,000, $174,000 and $171,000, respectively. The related tax benefit for 2013, 2012 and 2011 was $65,000, $59,000 and $58,000, respectively.
	The fair value of each option award is estimated on the date of grant using a binomial option valuation model that uses the assumptions noted in the following table. Expected volatility is based on historical volatility of the Company’s stock and other factors. The Company uses historical data to estimate option exercise and participant termination within the valuation model; separate groups of participants that have similar historical exercise behavior are considered separately for valuation purposes. The expected term of options granted is derived from the output of the option valuation model and represents the period of time that options granted are expected to be outstanding. The risk-free rate for periods within the contractual life of the option is based on the U.S. Treasury yield curve in effect at the time of grant.
		2013			2012			2011
	Expected volatility		49.2	%		50.2	%		50.4	%
	Weighted-average volatility		49.2	%		50.2	%		50.4	%
	Expected dividends		6	%		6	%		6	%
	Expected term (in years)		6			6			6
	Risk-free rate		0.9	%		1.1	%		2.4	%
	Weighted-average fair value of options granted during the year	$	4.88		$	5.01		$	6.16
	Historically, the Company has fulfilled option exercises through available treasury shares.
	A summary of option activity under the plans as of December 31, 2013, and changes during the year then ended, is presented below.
		Shares			Weighted-			Weighted-			Aggregate
					Average			Average			Intrinsic
					Exercise			Remaining			Value
					Price			Contractual
								Term
	Outstanding, beginning of year		267,874		$	20.54
	Granted		52,000			19.3
	Exercised		16,585			17.1
	Forfeited or expired		(35,667	)		22.96
	Outstanding, end of year		267,622		$	20.19			5.34		$	141,763
	Exercisable, end of year		197,246		$	20.37			4.1		$	139,203
	The total intrinsic value of options exercised during the year ended December 31, 2013 was $72,000. The total intrinsic value of options exercised during the year ended December 31, 2012 was $12,000. There were no options exercised during the year ended December 31, 2011. As of December 31, 2013, there was $205,000 of total unrecognized compensation cost related to non-vested share-based compensation arrangements granted under the Plan. That cost is expected to be recognized over a weighted-average period of ten months.

Earnings_Per_Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	Note 19: Earnings Per Share
	Earnings per share (EPS) were computed as follows (thousands, except share and per share amounts):
		2013		2012		2011
	Basic earnings per share:
	Net income	$	4,243	$	3,877	$	3,801
	Weighted average common shares outstanding		3,419,259		3,423,800		3,423,995
	Basic earnings per share	$	1.24	$	1.13	$	1.11
	Diluted earnings per share:
	Net income	$	4,243	$	3,877	$	3,801
	Weighted average common shares outstanding		3,419,259		3,423,800		3,423,995
	Effect of dilutive securities—stock options		11,458		6,550		12,364
	Average shares and dilutive potential common shares		3,430,717		3,430,350		3,436,359
	Diluted earnings per share	$	1.24	$	1.13	$	1.11
	As of December 31, 2013, options to purchase 197,100 shares of common stock at $19.22 to $30.50 per share were outstanding but not included in the computation of diluted EPS because the options’ exercise prices were greater than the average market price of the common shares.
	As of December 31, 2012, options to purchase 212,267 shares of common stock at $19.00 to $30.50 per share were outstanding but not included in the computation of diluted EPS because the options’ exercise prices were greater than the average market price of the common shares.
	As of December 31, 2011, options to purchase 193,600 shares of common stock at $20.88 to $30.50 per share were outstanding but not included in the computation of diluted EPS because the options’ exercise prices were greater than the average market price of the common shares.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2013
Commitments And Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Note 20: Commitments and Contingencies
	Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since a portion of the commitments may expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Each customer’s creditworthiness is evaluated on a case-by-case basis. The amount of collateral obtained, if deemed necessary, is based on management’s credit evaluation of the counterparty. Collateral held varies, but may include accounts receivable, inventory, property, plant and equipment, commercial real estate and residential real estate.
	At December 31, 2013 and 2012, the Bank had the following commitments outstanding (thousands):
		2013		2012
	Commitments at variable rates of interest	$	3,090	$	18,394
	Commitments at fixed rates of interest		130		4,200
	Total business loan commitments	$	3,220	$	22,594
	The commitments extended over varying periods of time with the majority being disbursed within a one-year period.
	Letters of credit are conditional commitments issued by the Bank to guarantee the performance of a customer to a third party. Those guarantees are primarily issued to support public and private borrowing arrangements, including commercial paper, bond financing and similar transactions. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loans to customers.
	At December 31, 2013 and 2012, the Bank had total outstanding letters of credit of (thousands):
		2013		2012
	Letters of credit	$	747	$	1,742
	Range of terms		30 days to two years		30 days to one year
	Mortgage loans in the process of origination represent amounts that the Bank plans to fund within a normal period of 60 to 90 days, some of which are intended for sale to investors in the secondary market. Forward commitments to sell mortgage loans are obligations to deliver loans at a specified price on or before a specified future date. The Bank acquires such commitments to reduce market risk on mortgage loans in the process of origination and mortgage loans held for sale.
	At December 31, 2013 and 2012, total mortgage loans in the process of origination amounted to (thousands):
		2013		2012
	Commitments to originate mortgage loans	$	410	$	2,276
	Commitments at fixed rates of interest		410		2,056
	Commitments to sell mortgage loans		0		255
	Lines of credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Lines of credit generally have fixed expiration dates. Since a portion of the line may expire without being drawn upon, the total unused lines do not necessarily represent future cash requirements. Each customer’s creditworthiness is evaluated on a case-by-case basis. The amount of collateral obtained, if deemed necessary, is based on management’s credit evaluation of the counterparty. Collateral held varies but may include accounts receivable, inventory, property, plant and equipment, commercial real estate and residential real estate. Management uses the same credit policies in granting lines of credit as it does for on-balance-sheet instruments.
	At December 31, 2013 and 2012, the Bank had the following lines of credit outstanding (thousands):
		2013		2012
	Commercial lines	$	33,670	$	29,700
	Consumer lines		41,617		40,886
	At December 31, 2013, the Bank had $443,000 in Federal Funds sold invested at U.S. Bank.

Fair_Value_Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	Note 21: Fair Value Measurements
	The Company accounts for fair values in accordance with accounting guidance for Fair Value Measurements prescribed under the FASB Accounting Standards Codification. The ASC defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements.
	The ASC defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The ASC also establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes three levels of inputs that may be used to measure fair value:
		Level 1		Quoted prices in active markets for identical assets or liabilities
		Level 2		Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities
		Level 3		Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities
	The following is a description of the valuation methodologies used for assets measured at fair value on a recurring basis and recognized in the accompanying balance sheets, as well as the general classification of such assets pursuant to the valuation hierarchy:
	Available-for-Sale Securities
	The fair value of available-for-sale securities are determined by various valuation methodologies. The Company has no securities classified as Level 1 or Level 3. Level 2 securities include U.S. Government agencies, mortgage-backed securities, and obligations of political and state subdivisions. Level 2 inputs do not include quoted prices for individual securities in active markets; however, they do include inputs that are either directly or indirectly observable for the individual security being valued. Such observable inputs include interest rates and yield curves at commonly quoted intervals, volatilities, prepayment speeds, credit risks and default rates. Also included are inputs derived principally from or corroborated by observable market data by correlation or other means.
	The following table presents the fair value measurements of assets measured at fair value on a recurring basis and the level within the ASC fair value hierarchy in which the fair value measurements fall at December 31, 2013 and December 31, 2012. (See fair values by type of security in Note 2) (thousands):
		Fair			Fair Value Measurements at Reporting Date Using
		Value			Level 1			Level 2			Level 3
	December 31, 2013:
	Available-for-sale securities	$	138,098		$	0		$	138,098		$	0
	December 31, 2012:
	Available-for-sale securities	$	133,020		$	0		$	133,020		$	0
	The following is a description of the valuation methodologies used for assets measured at fair value on a non-recurring basis and recognized in the accompanying balance sheets, as well as the general classification of such assets pursuant to the valuation hierarchy:
	Impaired Loans (Collateral Dependent)
	At December 31, 2013 and 2012, impaired loans consisted primarily of loans secured by commercial real estate. Management has determined fair value measurements on impaired loans secured by real estate primarily through evaluations of appraisals performed, less estimated cost to sell. Appraisals are reviewed for accuracy and consistency by the Bank’s Credit Administration area, and appraisers are selected from the list of approved appraisers maintained by management. Collateral-dependent impaired loans are classified within Level 3 of the fair value hierarchy. The Bank also has some impaired loans secured by accounts receivable, inventory or equipment. Management has determined fair value measurements based on review of recent financial statements or research of current equipment values.
	Other Real Estate Owned
	Real estate acquired through, or in lieu of, loan foreclosure (OREO) is held for sale and initially recorded at fair value based on current appraised value at the date of foreclosure, establishing a new cost basis. Subsequent to foreclosure, new appraisals are periodically obtained by management and the assets are carried at the lower of carrying amount or fair value less estimated costs to sell. Appraisals are reviewed for accuracy and consistency by the Bank’s Credit Administration area, and appraisers are selected from the list of approved appraisers maintained by management. OREO is classified within Level 3 of the fair value hierarchy.
	The following table presents the fair value measurements of assets measured at fair value on a nonrecurring basis and the level within the ASC fair value hierarchy in which the fair value measurements fall at December 31, 2013 and December 31, 2012. The values below only represent those assets with a change in their fair value estimate since the previous year end (thousands).
		Fair			Fair Value Measurements at Reporting Date Using
	Description	Value			Level 1			Level 2			Level 3
	December 31, 2013:
	Impaired loans	$	2,907		$	0		$	0		$	2,907
	Other real estate owned		140			0			0			140
	December 31, 2012:
	Impaired loans	$	2,047		$	0		$	0		$	2,047
	Other real estate owned		613			0			0			613
	Unobservable (Level 3) Inputs
	The following table presents quantitative information about unobservable inputs used in recurring and nonrecurring Level 3 fair value measurements other than goodwill (thousands).
	Description	Fair			Valuation		Unobservable	Estimated
		Value			Technique		Inputs	Cost
	December 31, 2013:
	Impaired loans	$	2,907		Market comparable		Estimated costs to		10	%
					properties		sell
	Other real estate owned	$	140		Market comparable		Comparability		10	%
					properties		adjustments
	December 31, 2012:
	Impaired loans	$	2,047		Market comparable		Estimated costs to		10	%
					properties		sell
	Other real estate owned	$	613		Market comparable		Comparability		10	%
					properties		adjustments
	The following table presents estimated fair values of the Company’s financial instruments and the level within the fair value hierarchy in which the fair value measurements fall. The fair values of certain of these instruments were calculated by discounting expected cash flows, which involves significant judgments by management and uncertainties. Fair value is the estimated amount at which financial assets or liabilities could be exchanged in a current transaction between willing parties, other than in a forced or liquidation sale. Because no market exists for certain of these financial instruments and because management does not intend to sell these financial instruments, the Company does not know whether the fair values shown below represent values at which the respective financial instruments could be sold individually or in the aggregate (thousands):
		Fair Value Measurements Using
		Carrying			Level 1			Level 2			Level 3
		Amount
	December 31, 2013:
	Financial assets
	Cash and cash equivalents	$	51,499		$	51,499		$	0		$	0
	Loans including loans held for sale, net		395,443			0			0			398,491
	Stock in FRB and FHLB		10,035			0			10,035			0
	Earned income receivable		2,546			0			2,546			0
	FDIC loss share receivable		525			0			0			525
	Financial liabilities
	Deposits		550,800			0			552,467			0
	Long-term debt		14,310			0			8,250			0
	Interest payable		74			0			74			0
	December 31, 2012:
	Financial assets
	Cash and cash equivalents	$	64,509		$	64,509		$	0		$	0
	Loans including loans held for sale, net		397,424			0			0			407,145
Stock in FRB and FHLB		10,030			0			10,030			0
Earned income receivable		2,732			0			2,732			0
FDIC loss share receivable		1,340			0			0			1,340
Financial liabilities
Deposits		559,568			0			561,871			0
Long-term debt		15,310			0			9,165			0
Interest payable		108			0			108			0
The following methods were used to estimate the fair value of all other financial instruments recognized in the accompanying balance sheets at amounts other than fair value.
Cash and Cash Equivalents
The carrying amount approximates fair value.
Loans, Including Loans Held for Sale, Net
Fair value is estimated by discounting the future cash flows using the market rates at which similar notes would be made to borrowers with similar credit ratings and for the same remaining maturities. The market rates used are based on current rates the Bank would impose for similar loans and reflect a market participant assumption about risks associated with non-performance, illiquidity, and the structure and term of the loans along with local economic and market conditions.
Stock in FRB and FHLB
Fair value is estimated at book value due to restrictions that limit the sale or transfer of such stock.
FDIC Loss Share Receivable
The carrying amount approximates fair value. The carrying amount is based on future expected losses on loans covered under the loss share agreement with the FDIC.
Earned Income Receivable and Interest Payable
The carrying amount approximates fair value. The carrying amount for interest receivable and interest payable is determined using the interest rate, balance and last payment date. Trust income and commissions receivable is based on trust fee schedules, market value of trust assets and brokerage commission schedules.
Deposits
Fair value of term deposits is estimated by discounting the future cash flows using rates of similar deposits with similar maturities. The market rates used were based on current rates the Bank would offer on similar term deposits. The estimated fair value of demand, NOW, savings and money market deposits is the book value since rates are regularly adjusted to market rates and amounts are payable on demand at the reporting date.
Long-term Debt
Fair value of Federal Home Loan debt is estimated by discounting the future cash flows using rates of similar advances with similar maturities. These rates were obtained from current rates offered by FHLB. Fair value of trust preferred debt is estimated by discounting the future cash flows using rates of similar trust preferred debt issuances. These rates were obtained from a knowledgeable independent third party and reviewed by the Company.
Commitments to Originate Loans, Forward Sale Commitments, Letters of Credit, and Lines of Credit
The fair value of commitments to originate loans is estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed-rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates. The fair value of forward sale commitments is estimated based on current market prices for loans of similar terms and credit quality. The fair values of letters of credit and lines of credit are based on fees currently charged for similar agreements or on the estimated cost to terminate or otherwise settle the obligations with the counterparties at the reporting date. At December 31, 2013 and 2012, the fair value of commitments was not material.

Condensed_Financial_Informatio

Condensed Financial Information (Parent Company Only)	12 Months Ended
	Dec. 31, 2013
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]	'
Condensed Financial Information (Parent Company Only)	'
	Note 22: Condensed Financial Information (Parent Company Only)
	Presented below is condensed financial information as to financial position, results of operations and cash flows of the Company at and for the years ended December 31 (thousands):
	CONDENSED BALANCE SHEETS
		2013			2012
	Assets
	Cash and due from banks	$	7,414		$	7,167
	Investment in common stock of banking subsidiary		69,723			72,745
	Investment in nonbanking subsidiary		303			302
	Other assets		941			929
	Total assets	$	78,381		$	81,143
	Liabilities
	Long-term debt	$	9,310		$	10,310
	Other liabilities		1,036			13
	Total liabilities		10,346			10,323
	Stockholders’ Equity		68,035			70,820
	Total liabilities and stockholders’ equity	$	78,381		$	81,143
	CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME
		2013			2012			2011
	Income
	Dividends from banking subsidiary	$	4,100		$	4,200		$	4,000
	Dividends from non-banking subsidiary		5			45			0
	Gain on extinguishment of long-term debt		300			0			0
	Total income		4,405			4,245			4,000
	Expenses
	Interest expense		176			558			730
	Directors fees		60			70			66
	Other expenses		82			83			88
	Total expenses		318			711			884
	Income Before Income Tax and Equity in Undistributed Income of Subsidiaries		4,087			3,534			3,116
	Income Tax Benefit		(135	)		(379	)		(451	)
	Income Before Equity in Undistributed Income of Subsidiaries		4,222			3,913			3,567
	Equity in Undistributed Income (Excess Distributions) of Banking Subsidiary		20			(9	)		212
	Equity in Undistributed Income (Loss) of Nonbanking Subsidiary		1			(27	)		22
	Net Income	$	4,243		$	3,877		$	3,801
	Comprehensive Income	$	1,010		$	4,002		$	3,726
	CONDENSED STATEMENTS OF CASH FLOWS
		2013			2012			2011
	Operating Activities
	Net income	$	4,243		$	3,877		$	3,801
	Items providing (using) cash		(338	)		895			(685	)
	Net cash provided by operating activities		3,905			4,772			3,116
	Financing Activities
	Cash dividends paid		(3,077	)		(5,134	)		(4,109	)
	Proceeds from stock options exercised		283			52			0
	Purchase of treasury stock		(198	)		(276	)		(16	)
	Sale of treasury stock		34			185			0
	Repayment of long-term debt		(700	)		0			0
	Net cash used in financing activities		(3,658	)		(5,173	)		(4,125	)
	Net Change in Cash and Cash Equivalents		247			(401	)		(1,009	)
	Cash and Cash Equivalents at Beginning of Year		7,167			7,568			8,577
	Cash and Cash Equivalents at End of Year	$	7,414		$	7,167		$	7,568

Nature_of_Operations_and_Summa1

Nature of Operations and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Changes And Error Corrections [Abstract]	'
Nature of Operations	'
	Nature of Operations
	NB&T Financial Group, Inc. (the “Company”) is a financial holding company whose principal activity is the ownership and management of its wholly-owned subsidiaries, The National Bank and Trust Company (the “Bank”), NB&T Insurance Group, Inc. (the “Group”), and NB&T Statutory Trust III (“Trust III”). In accordance with the Consolidation topic of the FASB Accounting Standards Codification (“ASC”), Trust III is not consolidated into these financial statements. The Bank is primarily engaged in providing a full range of banking and financial services to individual and corporate customers in Brown, Clermont, Clinton, Highland, Montgomery and Warren counties in Ohio. The Bank offers certain investment products through its wholly-owned subsidiary, the Group. The Bank is subject to competition from other financial institutions. The Bank is subject to the regulation of certain federal and state agencies and undergoes periodic examinations by those regulatory authorities.
Principles of Consolidation	'
	Principles of Consolidation
	The consolidated financial statements include the accounts of the Company, the Bank and the Group. All significant intercompany accounts and transactions have been eliminated in consolidation.
Use of Estimates	'
	Use of Estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
	Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for loan losses. In connection with the determination of the allowance for loan losses, management obtains independent appraisals for significant properties and collateral securing impaired loans.
Cash Equivalents	'
	Cash Equivalents
	The Company considers all liquid investments with original maturities of three months or less to be cash equivalents. At December 31, 2013 and 2012, cash equivalents consisted primarily of interest-bearing accounts with the Federal Reserve Bank and the Federal Home Loan Bank of Cincinnati and non-interest bearing cash accounts with other financial institutions.
	Currently, FDIC insurance limits are $250,000 per covered institution. At December 31, 2013, the Company’s cash accounts exceeded federally insured limits by $41,291,000. Of that amount, $41,098,000 was held at the Federal Reserve Bank.
Securities	'
	Securities
	The Company classifies all securities as available-for-sale securities, which are carried at fair value. The Company has no immediate plan to sell but may sell securities in the future. Unrealized gains and losses are recorded, net of related income tax effects, in other comprehensive income.
	Amortization of premiums and accretion of discounts are recorded as interest income from securities. Realized gains and losses are recorded as net security gains (losses). Gains and losses on sales of securities are recorded on the trade date and are determined on the specific-identification method.
	The Company handles other-than-temporary impairment in the securities portfolio in accordance with current accounting standards (ASC 320-10). When the Company does not intend to sell a debt security, and it is more likely than not that the Company will not have to sell the security before recovery of its cost basis, it recognizes the credit component of an other-than-temporary impairment of a debt security in earnings and the remaining portion in other comprehensive income.
	As a result of this guidance, with respect to available-for-sale debt securities that management has no intent to sell and believes it is more likely than not the debt security will not be required to be sold prior to recovery, only the credit loss component of the impairment is recognized in earnings, while the noncredit loss is recognized in accumulated other comprehensive income. The credit loss component recognized in earnings is identified as the amount of principal cash flows not expected to be received over the remaining term of the security as projected based on cash flow projections.
Loans Held for Sale	'
	Loans Held for Sale
	Mortgage loans originated and intended for sale in the secondary market are carried at the lower of cost or fair value in the aggregate. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income.
Loans	'
	Loans
	Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoffs are reported at their outstanding principal balances adjusted for unearned income, charge-offs, the allowance for loan losses, any unamortized deferred fees or costs on originated loans and unamortized premiums or discounts on purchased loans.
	For loans amortized at cost, interest income is accrued based on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, as well as premiums and discounts, are deferred and amortized as a level yield adjustment over the respective term of the loan.
	For all loan classes, the accrual of interest is discontinued at the time the loan is 90 days past due unless the credit is well-secured and in process of collection. Past due status is based on contractual terms of the loan. For all loan classes, the entire balance of the loan is considered past due if the minimum payment contractually required to be paid is not received by the contractual due date. For all loan classes, loans are placed on nonaccrual or charged off at an earlier date if collection of principal or interest is considered doubtful.
	Management’s general practice is to proactively charge down loans individually evaluated for impairment to the fair value of the underlying collateral. Consistent with regulatory guidance, charge-offs on all loan segments are taken when specific loans, or portions thereof, are considered uncollectible. The Company’s policy is to promptly charge these loans off in the period the uncollectible loss is reasonably determined.
	For all loan portfolio segments except residential and consumer loans, the Company promptly charges-off loans, or portions thereof, when available information confirms that specific loans are uncollectible based on information that includes, but is not limited to, (1) the deteriorating financial condition of the borrower, (2) declining collateral values, and/or (3) legal action, including bankruptcy, that impairs the borrower’s ability to adequately meet its obligations. For impaired loans that are considered to be solely collateral dependent, a partial charge-off is recorded when a loss has been confirmed by an updated appraisal or other appropriate valuation of the collateral.
	The Company charges-off residential and consumer loans, or portions thereof, when the Company reasonably determines the amount of the loss. The Company adheres to timeframes established by applicable regulatory guidance, which provide for the charge-down of 1-4 family first and junior lien mortgages to the net realizable value less costs to sell when the loan is 180 days past due and charge down to the net realizable value when other secured loans are 120 days past due. Loans at these respective delinquency thresholds for which the Company can clearly document that the loan is both well-secured and in the process of collection, such that collection will occur regardless of delinquency status, need not be charged off.
	For all classes, all interest accrued but not collected for loans that are placed on nonaccrual or charged off are reversed against interest income. The interest on these loans is accounted for on the cash-basis or cost-recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. Nonaccrual loans are returned to accrual status when, in the opinion of management, the financial position of the borrower indicates there is no longer any reasonable doubt as to the timely collection of interest or principal. The Company requires a period of satisfactory performance of not less than six months before returning a nonaccrual loan to accrual status.
	Generally, most impaired loans, except for certain troubled debt restructurings, are on nonaccrual. Troubled debt restructured loans recognize interest income on an accrual basis at the renegotiated rate if the loan is in compliance with the modified terms, no principal reduction has been granted and the loan has demonstrated the ability to perform in accordance with the renegotiated terms for a period of at least six months.
Allowance for Loan Losses	'
	Allowance for Loan Losses
	The allowance for loan losses is established as losses are estimated to have occurred through a provision for loan losses charged to income. Loan losses are charged against the allowance when management believes the uncollectability of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance.
	The allowance for loan losses is evaluated on a regular basis by management and is based upon management’s periodic review of the collectability of the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral and prevailing economic conditions. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available.
	The allowance consists of allocated and general components. The allocated component relates to loans that are classified as impaired. For those loans that are classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers non-impaired loans and is based on historical charge-off experience by segment. The historical loss experience is determined by portfolio segment and is based on the actual loss history experienced by the Company over the prior one to three years. Management believes the one-to-three year historical loss experience methodology is appropriate in the current economic environment. Other adjustments (qualitative/environmental considerations) for each segment may be added to the allowance for each loan segment after an assessment of internal or external influences on credit quality that are not fully reflected in the historical loss or risk rating data.
	A loan is considered impaired when, based on current information and events, it is probable that the Bank will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record and the amount of the shortfall in relation to the principal and interest owed. Impairment is measured on a loan-by-loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price or the fair value of the collateral if the loan is collateral dependent. For impaired loans where the Company utilizes the discounted cash flows to determine the level of impairment, the Company includes the entire change in the present value of cash flows as bad debt expense.
	The fair values of collateral dependent impaired loans are based on independent appraisals of the collateral. In general, the Company acquires an updated appraisal upon identification of impairment and periodically thereafter for commercial, commercial real estate and multi-family loans. After determining the collateral value as described, the fair value is calculated based on the determined collateral value less selling expenses. The potential for outdated appraisal values is considered in our determination of the allowance for loan losses through our analysis of various trends and conditions including the local economy, trends in charge-offs and delinquencies, etc. and the related qualitative adjustments assigned by the Company.
	Segments of loans with similar risk characteristics are collectively evaluated for impairment based on the segment’s historical loss experience adjusted for changes in trends, conditions and other relevant factors that affect repayment of the loans. Accordingly, the Company does not separately identify individual consumer and residential loans for impairment measurements, unless such loans are the subject of a restructuring agreement due to financial difficulties of the borrower.
	In the course of working with borrowers, the Company may choose to restructure the contractual terms of certain loans. In this scenario, the Company attempts to work out an alternative payment schedule with the borrower in order to optimize collectability of the loan. Any loans that are modified are reviewed by the Company to identify if a troubled debt restructuring (“TDR”) has occurred, which is when, for economic or legal reasons related to a borrower’s financial difficulties, the Company grants a concession to the borrower that it would not otherwise consider. Terms may be modified to fit the ability of the borrower to repay in line with its current financial status, and the restructuring of the loan may include the transfer of assets from the borrower to satisfy the debt, a modification of loan terms, or a combination of the two. If such efforts by the Company do not result in a satisfactory arrangement, the loan is referred to legal counsel, at which time foreclosure proceedings are initiated. At any time prior to a sale of the property at foreclosure, the Company may terminate foreclosure proceedings if the borrower is able to work out a satisfactory payment plan.
	It is the Company’s policy to have any restructured loans which are on nonaccrual status prior to being restructured remain on nonaccrual status until six months of satisfactory borrower performance, at which time management would consider its return to accrual status. If a loan was accruing at the time of restructuring, the Company reviews the loan to determine if it is appropriate to continue the accrual of interest on the restructured loan.
	With regard to determination of the amount of the allowance for credit losses, troubled debt restructured loans are considered to be impaired. As a result, the determination of the amount of impaired loans for each portfolio segment within troubled debt restructurings is the same as detailed previously.
Premises and Equipment	'
	Premises and Equipment
	Depreciable assets are stated at cost less accumulated depreciation. Depreciation is charged to expense using the straight-line method over the estimated useful lives of the assets. Buildings and building improvements are depreciated over an average of 40 years and 10 years, respectively. Furniture, fixtures and equipment is depreciated over a range of three to seven years. Leasehold improvements are amortized over the lesser of the asset’s useful life or the lease term, including any renewal periods for which renewal is reasonably assured.
Federal Reserve and Federal Home Loan Bank Stock	'
	Federal Reserve and Federal Home Loan Bank Stock
	Federal Reserve and Federal Home Loan Bank stock are required investments for institutions that are members of the Federal Reserve and Federal Home Loan Bank systems. The required investment in the common stock is based on a predetermined formula, carried at cost and evaluated for impairment.
Foreclosed Assets Held for Sale	'
	Foreclosed Assets Held for Sale
	Assets acquired through, or in lieu of, loan foreclosure are held for sale and are initially recorded at fair value at the date of foreclosure, establishing a new cost basis. Subsequent to foreclosure, valuations are periodically performed by management and the assets are carried at the lower of carrying amount or fair value less cost to sell. Revenue and expenses from operations and changes in the valuation allowance are included in net income or expense from foreclosed assets.
Goodwill	'
	Goodwill
	Goodwill is tested at least annually for impairment. If the implied fair value of goodwill is lower than its carrying amount, a goodwill impairment is indicated and goodwill is written down to its implied fair value. Subsequent increases in goodwill value are not recognized in the financial statements.
Intangible Assets	'
	Intangible Assets
	Intangible assets are being amortized on an accelerated basis over periods ranging from seven to ten years. Such assets are periodically evaluated as to the recoverability of their carrying value.
Treasury Stock	'
	Treasury Stock
	Treasury stock is stated at cost. Cost is determined based on the average cost of all shares.
Income Taxes	'
	Income Taxes
	The Company accounts for income taxes in accordance with income tax accounting guidance (ASC 740, Income Taxes). The income tax accounting guidance results in two components of income tax expense: current and deferred. Current income tax expense reflects taxes to be paid or refunded for the current period by applying the provisions of the enacted tax law to the taxable income or excess of deductions over revenues. The Company determines deferred income taxes using the liability (or balance sheet) method. Under this method, the net deferred tax asset or liability is based on the tax effects of the differences between the book and tax bases of assets and liabilities, and enacted changes in tax rates and laws are recognized in the period in which they occur. Deferred income tax expense results from changes in deferred tax assets and liabilities between periods. Deferred tax assets are reduced by a valuation allowance if, based on the weight of evidence available, it is more likely than not that some portion or all of a deferred tax asset will not be realized.
	Tax positions are recognized if it is more likely than not, based on the technical merits, that the tax position will be realized or sustained upon examination. The term more likely than not means a likelihood of more than 50 percent; the terms examined and upon examination also include resolution of the related appeals or litigation processes, if any. A tax position that meets the more-likely-than-not recognition threshold is initially and subsequently measured as the largest amount of tax benefit that has a greater than 50 percent likelihood of being realized upon settlement with a taxing authority that has full knowledge of all relevant information. The determination of whether or not a tax position has met the more-likely-than-not recognition threshold considers the facts, circumstances and information available at the reporting date and is subject to management’s judgment. With a few exceptions, the Company is no longer subject to U.S. federal, state and local or non-U.S. income tax examinations by tax authorities for years before 2010. The Company recognizes interest and penalties, if any, on income taxes as a component of income tax expense.
Earnings Per Share	'
	Earnings Per Share
	Basic earnings per share represents income available to common stockholders divided by the weighted-average number of common shares outstanding during each period. Diluted earnings per share reflects additional potential common shares that would have been outstanding if dilutive potential common shares had been issued, as well as any adjustment to income that would result from the assumed issuance. Potential common shares that may be issued by the Company relate solely to outstanding stock options and are determined using the treasury stock method.
	Treasury stock shares are not deemed outstanding for earnings per share calculations.
Marketing Expenses	'
	Marketing Expenses
	Marketing costs are expensed as incurred.
Reclassifications	'
	Reclassifications
	Certain reclassifications have been made to the 2012 and 2011 financial statements to conform to the 2013 financial statement presentation. These reclassifications had no effect on net income.
Goodwill Impairment	'
	In September 2011, the FASB issued Accounting Standards Update (“ASU”) No. 2011-08 regarding the testing for goodwill impairment. The objective of this ASU is to simplify how entities, both public and nonpublic, test goodwill for impairment. Under the revised standard, an entity will be allowed to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test. The amendments are effective on annual or interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. Adoption of this standard has not had a material effect on the Company’s financial statements.
Indefinite-lived Intangible Assets for Impairment Other than Goodwill	'
	In July 2012, the FASB issued ASU No. 2012-02 regarding testing indefinite-lived intangible assets for impairment other than goodwill. The objective of this ASU is to reduce the cost and complexity of performing an impairment test for indefinite-lived intangible assets by simplifying how an entity tests those assets for impairment and to improve consistency in impairment testing guidance among long-lived asset categories. Under this revised standard, an entity has the option first to assess qualitative factors to determine whether the existence of events and circumstances indicates that it is more likely than not that the indefinite-lived intangible asset is impaired. If, after assessing the totality of events and circumstances, an entity concludes that it is not more likely than not that the indefinite-lived intangible asset is impaired, then the entity is not required to take further action. However, if an entity concludes otherwise, then it is required to determine the fair value of the indefinite-lived intangible asset and perform the quantitative impairment test by comparing the fair value with the carrying amount. The amendments are effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012. Adoption of this standard has not had a material effect on the Company’s financial statements.
Business Combinations	'
	In October 2012, the FASB issued ASU No. 2012-06, Business Combinations: Subsequent Accounting for an Indemnification Asset Recognized at the Acquisition Date as a Result of a Government-Assisted Acquisition of a Financial Institution. The objective of this ASU is to address the diversity in practice about how to interpret the terms on the same basis and contractual limitations when subsequently measuring an indemnification asset recognized in a government-assisted (Federal Deposit Insurance Corporation) acquisition of a financial institution that includes a loss-sharing agreement (indemnification agreement). When a reporting entity recognizes an indemnification asset as a result of a government-assisted acquisition of a financial institution and subsequently a change in the cash flows expected to be collected on the indemnification asset occurs (as a result of a change in cash flows expected to be collected on the assets subject to indemnification), the reporting entity should subsequently account for the change in the measurement of the indemnification asset on the same basis as the change in the assets subject to indemnification. Any amortization of changes in value should be limited to the contractual term of the indemnification agreement (i.e., the lesser of the term of the indemnification agreement and the remaining life of the indemnified assets). For public and nonpublic entities, the amendments are effective for fiscal years, and interim periods within those years, beginning on or after December 15, 2012. The amendments should be applied prospectively to any new indemnification assets acquired after the date of adoption and to indemnification assets existing as of the date of adoption arising from a government-assisted acquisition of a financial institution. Adoption of this standard has not had a significant impact on the valuation of the FDIC loss share receivable indemnification asset currently on the Company’s balance sheet.
Comprehensive income	'
	FASB also issued ASU 2013-02, which amended ASU 2011-05, Comprehensive Income, Topic 220: Presentation of Comprehensive Income, and establishes requirements and an effective date for amendments deferred by ASU 2011-12, Comprehensive Income (Topic 220): Deferral of the Effective Date for Amendments to the Presentation of Reclassification of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05. The update requires public companies to report information on reclassifications out of accumulated other comprehensive income (AOCI), in their financial statements in one place (either in the financial statements or in a single note) using information currently required to be disclosed elsewhere in the financial statements. Public companies are also required to comply with the requirements of this ASU at each reporting date. The information may be condensed in accordance with the level of detail required by Subtopic 270-10. The amendments in the update do not change the requirements for reporting net income or other comprehensive income in the financial statements. The new disclosure requirement takes effect prospectively for public companies in interim and annual reporting periods beginning after December 15, 2012. The Company adopted this standard on January 1, 2013. The effect of adopting this standard increased our disclosure of items reclassified out of accumulated other comprehensive income.
Fair Value Measurements	'
	The Company accounts for fair values in accordance with accounting guidance for Fair Value Measurements prescribed under the FASB Accounting Standards Codification. The ASC defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements.
	The ASC defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The ASC also establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes three levels of inputs that may be used to measure fair value:
		Level 1	Quoted prices in active markets for identical assets or liabilities
		Level 2	Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities
		Level 3	Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities

Securities_Tables

Securities (Tables)	12 Months Ended
	Dec. 31, 2013
Investments Debt And Equity Securities [Abstract]	'
Amortized Cost and Approximate Fair Values Including Gross Unrealized Gains and Losses of Securities	'
	The amortized cost and approximate fair values, together with gross unrealized gains and losses, of securities are as follows (thousands):
		Amortized			Gross			Gross			Approximate
		Cost			Unrealized			Unrealized			Fair Value
					Gains			Losses
	Available-for-Sale Securities:
	December 31, 2013:
	U.S. government sponsored entities	$	23,594		$	45		$	(100	)	$	23,539
	Mortgage-backed securities:
	U.S. Government sponsored entities-residential		59,565			793			(205	)		60,153
	Private label-residential		1,895			56			0			1,951
	State and political subdivisions		54,408			326			(2,279	)		52,455
		$	139,462		$	1,220		$	(2,584	)	$	138,098
	December 31, 2012:
	U.S. government sponsored entities	$	19,668		$	414		$	(0	)	$	20,082
	Mortgage-backed securities:
	U.S. Government sponsored entities-residential		66,735			1,389			(49	)		68,075
	Private label-residential		3,945			131			(53	)		4,023
	State and political subdivisions		39,137			1,816			(113	)		40,840
		$	129,485		$	3,750		$	(215	)	$	133,020
Amortized Cost and Fair Value of Securities Available for Sale	'
	The amortized cost and fair value of securities available for sale at December 31, 2013, by contractual maturity, are shown below (thousands). Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.
		Amortized Cost			Fair Value
	Within one year	$	2,808		$	2,843
	One to five years		22,348			22,308
	Five to ten years		7,204			7,170
	After ten years		45,642			43,673
			78,002			75,994
	Mortgage-backed securities		61,460			62,104
	Totals	$	139,462		$	138,098
Gross Unrealized Losses and Fair Value, Aggregated by Investment Category	'
	The table below indicates the gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at December 31, 2013 and 2012 (thousands):
		Less than 12 months						12 months or more						Total
		Fair			Unrealized			Fair			Unrealized			Fair		Unrealized
		Value			Loss			Value			Loss			Value		Loss
	December 31, 2013
	U.S. government sponsored entities	$	4,727		$	(100	)	$	0		$	0		$	4,727	$	(100	)
	Mortgage-backed securities:
	U.S. Government-sponsored entities-residential		17,547			(205	)		0			0			17,547		(205	)
	Municipal securities		31,351			(1,800	)		3,726			(479	)		35,077		(2,279	)
	Total Securities	$	53,625		$	(2,105	)	$	3,726		$	(479	)	$	57,351	$	(2,584	)
	December 31, 2012
	Mortgage-backed securities:
	U.S. Government-sponsored entities-residential	$	12,902		$	(48	)	$	1,352		$	(1	)	$	14,254	$	(49	)
	Private label-residential		0			0			604			(53	)		604		(53	)
	Municipal securities		6,656			(113	)		0			0			6,656		(113	)
	Total Securities	$	19,558		$	(161	)	$	1,956		$	(54	)	$	21,514	$	(215	)
Debt Securities for Which Only Credit Loss was Recognized in Income and Other Losses are Recorded	'
	The following table provides information about debt securities for which only a credit loss was recognized in income and other losses are recorded in other comprehensive income (thousands):
		Accumulated
		Credit Losses
		2013			2012			2011
	Credit losses on debt securities held
	Balance, beginning of year	$	(119	)	$	(118	)	$	(170	)
	Additions related to other-than-temporary losses not previously recognized		0			(35	)		0
	Reductions related to losses realized which were previously recognized		119			34			52
	Balance, end of period	$	0		$	(119	)	$	(118	)

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Components of Accumulated Other Comprehensive Income (loss)	'
	The components of accumulated other comprehensive income (loss), included in stockholders’ equity, are as follows (thousands):
		December 31,			December 31,
		2013			2012
	Net unrealized gain (loss) on available-for-sale securities	$	(1,364	)	$	3,588
	Net unrealized loss on available-for-sale securities for which a portion of an other-than-temporary impairment has been recognized in income		0			(53	)
			(1,364	)		3,535
	Tax effect		464			1,202
	Net-of-tax amount	$	(900	)	$	2,333

Loans_and_Allowance_for_Loan_L1

Loans and Allowance for Loan Losses (Tables)	12 Months Ended
	Dec. 31, 2013
Categories of Loans	'
	Categories of loans at December 31, include (thousands):
		2013			2012
	Commercial and industrial	$	36,792		$	54,961
	Commercial real estate		189,660			179,905
	Agricultural		35,160			33,679
	Residential real estate		131,032			127,007
	Consumer		6,766			6,319
	Total loans		399,410			401,871
	Less: Net deferred loan fees, premiums and discounts		86			58
	Allowance for loan losses		(4,053	)		(4,760	)
	Net loans	$	395,443		$	397,169
Allowance for Loan Losses Based on Portfolio Segment	'
	The following tables present the balance of the allowance for loan losses based on portfolio segment for the years ended December 31, 2013, 2012 and 2011(thousands):
	Allowance for loan losses:
		Commercial			Commercial			Agricultural			Residential			Residential			Consumer			Total
					Real Estate						1-4 Family			Home
														Equity
	January 1, 2011	$	474		$	2,057		$	184		$	528		$	337		$	134		$	3,714
	Charge-offs		(350	)		(1,300	)		(2	)		(262	)		(140	)		(198	)		(2,252	)
	Recoveries		16			167			6			9			3			70			271
	Provision		1,240			1,448			43			98			(5	)		111			2,935
	December 31, 2011		1,380			2,372			231			373			195			117			4,668
	Charge-offs		(1,513	)		(2,239	)		0			(343	)		(161	)		(109	)		(4,365	)
	Recoveries		7			59			3			15			12			74			170
	Provision		1,823			2,093			(149	)		415			153			(48	)		4,287
	December 31, 2012		1,697			2,285			85			460			199			34			4,760
	Charge-offs		(2,883	)		(415	)		0			(120	)		(169	)		(33	)		(3,620	)
	Recoveries		10			230			0			17			1			65			323
	Provision		2,633			(138	)		(16	)		0			174			(63	)		2,590
	December 31, 2013	$	1,457		$	1,962		$	69		$	357		$	205		$	3		$	4,053
Corporate and Consumer Credit Exposure by Category and Standard Regulatory Classification	'
	The following table presents the Company’s corporate and consumer credit exposure by category and standard regulatory classification as of December 31, 2013 and December 31, 2012 (thousands):
	Corporate Credit Exposure
	Credit Risk Profile by Creditworthiness Category:
		Commercial						Commercial Real Estate						Agricultural
	December 31,	2013			2012			2013			2012			2013			2012
	Pass	$	32,436		$	47,481		$	173,630		$	161,671		$	35,122		$	33,378
	Other Assets Especially Mentioned		1,800			2,647			3,377			3,983			0			226
	Substandard		2,410			4,687			12,653			14,251			38			75
	Doubtful		146			146			0			0			0			0
	Total	$	36,792		$	54,961		$	189,660		$	179,905		$	35,160		$	33,679
	Consumer Credit Exposure
	Credit Risk Profile by Internally Assigned Grade
		Residential-1 to 4 Family						Residential-Home Equity						Consumer
	December 31,	2013			2012			2013			2012			2013			2012
	Pass	$	100,362		$	94,262		$	28,072		$	30,110		$	6,696		$	6,295
	Substandard		2,419			2,405			179			230			70			24
	Total	$	102,781		$	96,667		$	28,251		$	30,340		$	6,766		$	6,319
Past Due and Nonaccrual Loans	'
	The following tables present the Company’s past due and non-accrual loans as of December 31, 2013 and December 31, 2012 (thousands):
	December 31, 2013:
		Past Due Days												Current			Total			90+ Days			Non-
																	Financing			&			accrual
		30-59			60-89			90+			Total						Receivables			Accruing
	Commercial	$	309		$	22		$	432		$	763		$	36,029		$	36,792		$	32		$	890
	Commercial Real Estate		212			0			2,789			3,001			186,659			189,660			0			3,402
	Agricultural		0			25			28			53			35,107			35,160			0			38
	Residential—1 to 4 Family		0			150			502			652			102,129			102,781			0			1,175
	Residential—Home Equity		40			32			100			172			28,079			28,251			0			164
	Consumer		10			1			24			35			6,731			6,766			0			65
	Total	$	571		$	230		$	3,875		$	4,676		$	394,734		$	399,410		$	32		$	5,734
	December 31, 2012:
		Past Due Days												Current			Total			90+ Days			Non-
																	Financing			&			accrual
		30-59			60-89			90+			Total						Receivables			Accruing
	Commercial	$	65		$	91		$	4,594		$	4,750		$	50,211		$	54,961		$	620		$	4,418
	Commercial Real Estate		602			26			3,590			4,218			175,687			179,905			0			3,950
	Agricultural		0			0			53			53			33,626			33,679			0			75
	Residential—1 to 4 Family		460			24			540			1,024			95,643			96,667			134			1,116
	Residential—Home Equity		54			3			173			230			30,110			30,340			24			196
	Consumer		22			38			10			70			6,249			6,319			0			60
	Total	$	1,203		$	182		$	8,960		$	10,345		$	391,526		$	401,871		$	778		$	9,815
Impaired Loans and Related Allowance for Loan Losses	'
	The following tables present impaired loan information at and for the years ended December 31, 2013 and 2012 and the related allowance for loan losses. Interest income recognized is not materially different than interest income that would have been recognized on a cash basis (thousands):
		December 31, 2013									December 31, 2012
		Recorded			Unpaid			Related			Recorded			Unpaid			Related
		Investment			Principal			Allowance			Investment			Principal			Allowance
					Balance									Balance
	With no related allowance recorded:
	Commercial	$	342		$	497		$	0		$	1,255		$	1,571		$	0
	Commercial real estate		3,275			3,727			0			3,940			4,145			0
	Agricultural		38			52			0			75			87			0
	Residential—1 to 4 Family		952			1,086			0			1,008			1,126			0
	Residential—Home equity		29			39			0			36			40			0
	Consumer		9			10			0			16			16			0
	With an allowance recorded:
	Commercial	$	560		$	569		$	108		$	3,234		$	3,290		$	1,029
	Commercial real estate		2,089			2,174			418			1,584			1,665			413
	Agricultural		0			0			0			0			0			0
	Residential—1 to 4 Family		0			0			0			0			80			1
	Residential—Home equity		15			14			0			0			0			0
	Consumer		0			0			0			0			2			0
	Total:
	Commercial	$	902		$	1,066		$	108		$	4,489		$	4,861		$	1,029
	Commercial real estate		5,364			5,901			418			5,524			5,810			413
	Agricultural		38			52			0			75			87			0
	Residential—1 to 4 Family		952			1,086			0			1,008			1,206			1
	Residential—Home equity		44			53			0			36			40			0
	Consumer		9			10			0			16			18			0
		$	7,309		$	8,168		$	526		$	11,148		$	12,022		$	1,443
		For the year ended						For the year ended						For the year ended
		December 31, 2013						December 31, 2012						December 31, 2011
		Average			Interest			Average			Interest			Average			Interest
		Recorded			Income			Recorded			Income			Recorded			Income
		Investment			Recognized			Investment			Recognized			Investment			Recognized
	With no related allowance recorded:
	Commercial	$	694		$	51		$	1,218		$	5		$	982		$	0
	Commercial real estate		3,174			211			4,744			202			3,659			136
	Agricultural		45			3			45			0			0			0
	Residential—1 to 4 Family		963			29			1,293			38			1,105			51
	Residential—Home equity		35			1			28			0			0			0
	Consumer		12			1			12			0			0			0
	With an allowance recorded:
	Commercial	$	2,725		$	0		$	3,264		$	0		$	1,090		$	0
	Commercial real estate		2,373			0			3,928			0			2,191			0
	Agricultural		0			0			9			0			0			0
	Residential—1 to 4 Family		29			0			40			0			0			0
	Residential—Home equity		10			0			0			0			0			0
	Consumer		0			0			1			0			0			0
	Total:
	Commercial	$	3,419		$	51		$	4,482		$	5		$	2,072		$	0
	Commercial real estate		5,547			211			8,672			202			5,850			136
	Agricultural		45			3			54			0			0			0
	Residential—1 to 4 Family		992			29			1,333			38			1,105			51
	Residential—Home equity		45			1			28			0			0			0
	Consumer		12			1			13			0			0			0
		$	10,060		$	296		$	14,582		$	245		$	9,027		$	187
Information Regarding Troubled Debt Restructurings	'
	The following tables present information regarding troubled debt restructurings (“TDRs”) by segment: (dollars in thousands):
	Newly classified troubled debt restructurings (dollars in thousands):
		Year Ended December 31, 2013									Year Ended December 31, 2012
					Outstanding Recorded Investment									Outstanding Recorded Investment
		Number of			Pre-Modification			Post-			Number of			Pre-Modification			Post-
		Contracts						Modification			Contracts						Modification
	Commercial		1		$	24		$	22			3		$	473		$	399
	Commercial real estate		2			1,111			850			0			0			0
	Residential		1			15			14			1			42			36
	Consumer		1			8			2			2			20			16
Allowance for Loan Losses by Impairment Method [Member]	'
Allowance for Loan Losses Based on Portfolio Segment	'
	The following tables present the balance in the allowance for loan losses and the recorded investment in loans based on portfolio segment and impairment method as of December 31, 2013 and December 31, 2012 (thousands):
		Evaluated for Impairment
		Individually			Collectively			Total
	December 31, 2013
	Allowance for loan losses:
	Commercial	$	108		$	1,349		$	1,457
	Commercial Real Estate		418			1,544			1,962
	Agricultural		0			69			69
	Residential—1-4 Family		0			357			357
	Residential—Home equity		0			205			205
	Consumer		0			3			3
	Total	$	526		$	3,527		$	4,053
	Loans:
	Commercial	$	902		$	35,890		$	36,792
	Commercial Real Estate		5,364			184,296			189,660
	Agricultural		38			35,122			35,160
	Residential—1-4 Family		952			101,829			102,781
	Residential—Home equity		44			28,207			28,251
	Consumer		9			6,757			6,766
	Total	$	7,309		$	392,101		$	399,410
		Evaluated for Impairment
		Individually			Collectively			Total
	December 31, 2012
	Allowance for loan losses:
	Commercial	$	1,029		$	668		$	1,697
	Commercial Real Estate		413			1,872			2,285
	Agricultural		0			85			85
	Residential—1-4 Family		1			459			460
	Residential—Home equity		0			199			199
	Consumer		0			34			34
	Total	$	1,443		$	3,317		$	4,760
	Loans:
	Commercial	$	4,489		$	50,472		$	54,961
	Commercial Real Estate		5,524			174,381			179,905
	Agricultural		75			33,604			33,679
	Residential—1-4 Family		1,008			95,659			96,667
	Residential—Home equity		36			30,304			30,340
	Consumer		16			6,303			6,319
	Total	$	11,148		$	390,723		$	401,871
Nature of Troubled Debt Restructurings [Member]	'
Information Regarding Troubled Debt Restructurings	'
	The following table provides information on how restructured loans were modified during the years ended December 31, 2013 and 2012 (dollars in thousands):
		Years Ended
		December 31, 2013									December 31, 2012
		Recorded			Amount			Allowance			Recorded			Amount			Allowance
		Investment			charged off			Increased			Investment			charged off			Increased
	Extended maturities	$	463		$	0		$	0		$	451		$	0		$	0
	Extended maturities and lowered interest rate		423			0			8			0			0			0
	Lowered interest rate		2			0			0		$	0			0			0
Troubled Debt Restructurings that Subsequently Defaulted [Member]	'
Information Regarding Troubled Debt Restructurings	'
	The Company had the following TDR’s modified in the past twelve months that subsequently defaulted during the years ended December 31, 2013 and December 31, 2012 (dollars in thousands):
		Years Ending
		December 31, 2013						December 31, 2012
		Number of			Recorded Investment			Number of			Recorded Investment
		Contracts						Contracts
	Consumer		1		$	22			1		$	2

Premises_and_Equipment_Tables

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2013
Property Plant And Equipment [Abstract]	'
Premises and Equipment, Stated at Cost	'
	Major classifications of premises and equipment, stated at cost, were as follows (thousands):
		2013			2012
	Land	$	4,474		$	4,588
	Buildings and improvements		18,537			18,922
	Leasehold improvements		445			420
	Equipment		11,689			12,638
		$	35,145		$	36,568
	Less accumulated depreciation and amortization		(18,250	)		(18,151	)
	Net premises and equipment	$	16,895		$	18,417

Operating_Leases_Tables

Operating Leases (Tables)	12 Months Ended
	Dec. 31, 2013
Leases [Abstract]	'
Minimum Future Lease Payments	'
	The minimum future lease payments for each of the next five years are as follows (thousands):
	2014	$	91
	2015		91
	2016		50
	2017		42
	2018		42

Other_Intangible_Assets_Tables

Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]	'
Accumulated Amortization of Recognized Intangible Assets	'
	The carrying basis and accumulated amortization of recognized intangible assets at December 31, 2013 and 2012, were (thousands):
		2013					2012
		Gross Carrying		Accumulated			Gross Carrying		Accumulated
		Amount		Amortization			Amount		Amortization
	Core deposit intangibles	$	1,523	$	(1,211	)	$	4,515	$	(3,959	)
Estimated Amortization Expense	'
	Estimated amortization expense for each of the following five years is (thousands):
	2014	$	179
	2015		89
	2016		44
	2017		0
	2018		0

InterestBearing_Deposits_Table

Interest-Bearing Deposits (Tables)	12 Months Ended
	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Scheduled Maturities of Time Deposits	'
	At December 31, 2013, the scheduled maturities of time deposits were as follows (thousands):
	2014	$	54,147
	2015		17,282
	2016		8,577
	2017		5,966
	2018		5,760
	Thereafter		4,602
		$	96,334

LongTerm_Debt_Tables

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Components of Long-Term Debt	'
	Long-term debt consisted of the following components (thousands):
		2013		2012
	Federal Home Loan Bank advances	$	5,000	$	5,000
	Junior subordinated debentures		9,310		10,310
	Total	$	14,310	$	15,310

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Provision for Income Taxes	'
	The provision for income taxes includes these components (thousands):
		2013			2012			2011
	Taxes currently payable	$	1,092		$	1,220		$	1,263
	Deferred income taxes		(46	)		(227	)		40
	Income tax expense	$	1,046		$	993		$	1,303
Reconciliation of Income Tax Expense	'
	A reconciliation of income tax expense at the statutory rate to actual income tax expense is shown below (thousands):
		2013			2012			2011
	Computed at the statutory rate (34%)	$	1,798		$	1,656		$	1,735
	Increase (decrease) resulting from
	Tax exempt interest		(464	)		(291	)		(153	)
	ESOP dividend		(131	)		(144	)		(158	)
	Bank owned life insurance		(159	)		(284	)		(165	)
	Other		2			56			44
	Actual tax expense	$	1,046		$	993		$	1,303
Tax Effects of Temporary Differences Related to Deferred Taxes	'
	The tax effects of temporary differences related to deferred taxes shown on the balance sheets were (thousands):
		2013			2012
	Deferred tax assets
	Allowance for loan losses	$	1,337		$	1,563
	Accruals not currently deductible		225			235
	Nonaccrual loan interest collected		271			280
	Stock options not currently deductible		116			100
	OREO expenses not currently deductible		240			403
	Other-than-temporary impairment charge		0			37
	Unrealized losses on available-for-sale securities		464			0
	Other		16			23
			2,669			2,641
	Deferred tax liabilities
	Deferred loan costs		(242	)		(214	)
	Depreciation		(477	)		(537	)
	FHLB stock dividends		(1,453	)		(1,453	)
	Prepaid assets currently deductible		(32	)		(53	)
	Unrealized gains on available-for-sale securities		0			(1,202	)
	ANB purchase		(981	)		(1,423	)
	Non-taxable purchase accounting adjustments		(260	)		(262	)
	Bad debt recapture		0			(131	)
	Intangible asset amortization		(709	)		(544	)
	Other		(35	)		(48	)
			(4,189	)		(5,867	)
	Net deferred tax liability	$	(1,520	)	$	(3,226	)

Regulatory_Matters_Tables

Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Company's and the Bank's Actual and Required Capital Amounts and Ratios	'
	The Company’s and the Bank’s actual and required capital amounts and ratios are presented in the following table (dollars in thousands):
		Actual					For Capital Adequacy					To Be Well Capitalized
							Purposes					Under Prompt
												Corrective Action
												Provisions
		Amount		Ratio			Amount		Ratio			Amount		Ratio
	As of December 31, 2013
	Total Risk-Based Capital to Risk-Weighted Assets:
	Consolidated	$	79,041		19.1	%	$	33,107		8	%		N/A		N/A
	Bank		71,729		17.35			33,080		8		$	41,349		10	%
	Tier I Capital to Risk-Weighted Assets:
	Consolidated		74,988		18.12			16,553		4			N/A		N/A
	Bank		67,676		16.37			16,540		4			24,810		6
	Tier I Capital to Average Assets:
	Consolidated		74,988		11.56			25,952		4			N/A		N/A
	Bank		67,676		10.41			25,992		4			32,490		5
	As of December 31, 2012
	Total Risk-Based Capital to Risk-Weighted Assets:
	Consolidated	$	79,975		19.51	%	$	32,791		8	%		N/A		N/A
	Bank		71,899		17.55			32,766		8		$	40,957		10	%
	Tier I Capital to Risk-Weighted Assets:
	Consolidated		75,215		18.35			16,396		4			N/A		N/A
	Bank		67,139		16.39			16,383		4			24,574		6
	Tier I Capital to Average Assets:
	Consolidated		75,215		11.27			26,701		4			N/A		N/A
	Bank		67,139		10.12			26,534		4			33,167		5

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2013
Related Party Transactions [Abstract]	'
Summary of Related Party Loan Activity	'
	A summary of the related party loan activity follows (thousands):
		2013			2012
	Balance, January 1	$	3,777		$	3,011
	New loans		407			1,239
	Payments		(1,437	)		(95	)
	Other changes		0			(378	)
	Balance, December 31	$	2,747		$	3,777

Stock_Option_Plans_Tables

Stock Option Plans (Tables)	12 Months Ended
	Dec. 31, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Contractual Life of Option	'
	The risk-free rate for periods within the contractual life of the option is based on the U.S. Treasury yield curve in effect at the time of grant.
		2013			2012			2011
	Expected volatility		49.2	%		50.2	%		50.4	%
	Weighted-average volatility		49.2	%		50.2	%		50.4	%
	Expected dividends		6	%		6	%		6	%
	Expected term (in years)		6			6			6
	Risk-free rate		0.9	%		1.1	%		2.4	%
	Weighted-average fair value of options granted during the year	$	4.88		$	5.01		$	6.16
Summary of Option Activity	'
	A summary of option activity under the plans as of December 31, 2013, and changes during the year then ended, is presented below.
		Shares			Weighted-			Weighted-			Aggregate
					Average			Average			Intrinsic
					Exercise Price			Remaining			Value
								Contractual
								Term
	Outstanding, beginning of year		267,874		$	20.54
	Granted		52,000			19.3
	Exercised		16,585			17.1
	Forfeited or expired		(35,667	)		22.96
	Outstanding, end of year		267,622		$	20.19			5.34		$	141,763
	Exercisable, end of year		197,246		$	20.37			4.1		$	139,203

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Computation of Earnings Per Share	'
	Earnings per share (EPS) were computed as follows (thousands, except share and per share amounts):
		2013		2012		2011
	Basic earnings per share:
	Net income	$	4,243	$	3,877	$	3,801
	Weighted average common shares outstanding		3,419,259		3,423,800		3,423,995
	Basic earnings per share	$	1.24	$	1.13	$	1.11
	Diluted earnings per share:
	Net income	$	4,243	$	3,877	$	3,801
	Weighted average common shares outstanding		3,419,259		3,423,800		3,423,995
	Effect of dilutive securities—stock options		11,458		6,550		12,364
	Average shares and dilutive potential common shares		3,430,717		3,430,350		3,436,359
	Diluted earnings per share	$	1.24	$	1.13	$	1.11

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2013
Commitments And Contingencies Disclosure [Abstract]	'
Summary of Outstanding Commitments	'
	At December 31, 2013 and 2012, the Bank had the following commitments outstanding (thousands):
		2013		2012
	Commitments at variable rates of interest	$	3,090	$	18,394
	Commitments at fixed rates of interest		130		4,200
	Total business loan commitments	$	3,220	$	22,594
Total Outstanding Letters of Credit	'
	At December 31, 2013 and 2012, the Bank had total outstanding letters of credit of (thousands):
		2013		2012
	Letters of credit	$	747	$	1,742
	Range of terms		30 days to two years		30 days to one year
Total Mortgage Loans in Process of Origination Amount	'
	At December 31, 2013 and 2012, total mortgage loans in the process of origination amounted to (thousands):
		2013		2012
	Commitments to originate mortgage loans	$	410	$	2,276
	Commitments at fixed rates of interest		410		2,056
	Commitments to sell mortgage loans		0		255
Total Outstanding Lines of Credit	'
	At December 31, 2013 and 2012, the Bank had the following lines of credit outstanding (thousands):
		2013		2012
	Commercial lines	$	33,670	$	29,700
	Consumer lines		41,617		40,886

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Measurements of Assets Measured at Fair Value on Recurring Basis	'
	The following table presents the fair value measurements of assets measured at fair value on a recurring basis and the level within the ASC fair value hierarchy in which the fair value measurements fall at December 31, 2013 and December 31, 2012. (See fair values by type of security in Note 2) (thousands):
		Fair		Fair Value Measurements at Reporting Date Using
		Value		Level 1			Level 2			Level 3
	December 31, 2013:
	Available-for-sale securities	$	138,098	$	0		$	138,098		$	0
	December 31, 2012:
	Available-for-sale securities	$	133,020	$	0		$	133,020		$	0
Fair Value Measurements of Assets Measured at Fair Value on Nonrecurring Basis	'
	The following table presents the fair value measurements of assets measured at fair value on a nonrecurring basis and the level within the ASC fair value hierarchy in which the fair value measurements fall at December 31, 2013 and December 31, 2012. The values below only represent those assets with a change in their fair value estimate since the previous year end (thousands).
		Fair		Fair Value Measurements at Reporting Date Using
	Description	Value		Level 1			Level 2			Level 3
	December 31, 2013:
	Impaired loans	$	2,907	$	0		$	0		$	2,907
	Other real estate owned		140		0			0			140
	December 31, 2012:
	Impaired loans	$	2,047	$	0		$	0		$	2,047
	Other real estate owned		613		0			0			613
Quantitative Information About Unobservable Inputs Used in Recurring and Nonrecurring Level 3 Fair Value Measurements Other than Goodwill	'
	The following table presents quantitative information about unobservable inputs used in recurring and nonrecurring Level 3 fair value measurements other than goodwill (thousands).
	Description	Fair		Valuation		Unobservable	Estimated
		Value		Technique		Inputs	Cost
	December 31, 2013:
	Impaired loans	$	2,907	Market comparable		Estimated costs to		10	%
				properties		sell
	Other real estate owned	$	140	Market comparable		Comparability		10	%
				properties		adjustments
	December 31, 2012:
	Impaired loans	$	2,047	Market comparable		Estimated costs to		10	%
				properties		sell
	Other real estate owned	$	613	Market comparable		Comparability		10	%
				properties		adjustments
Estimated Fair Values of Financial Instruments	'
	The following table presents estimated fair values of the Company’s financial instruments and the level within the fair value hierarchy in which the fair value measurements fall. The fair values of certain of these instruments were calculated by discounting expected cash flows, which involves significant judgments by management and uncertainties. Fair value is the estimated amount at which financial assets or liabilities could be exchanged in a current transaction between willing parties, other than in a forced or liquidation sale. Because no market exists for certain of these financial instruments and because management does not intend to sell these financial instruments, the Company does not know whether the fair values shown below represent values at which the respective financial instruments could be sold individually or in the aggregate (thousands):
		Fair Value Measurements Using
		Carrying		Level 1			Level 2			Level 3
		Amount
	December 31, 2013:
	Financial assets
	Cash and cash equivalents	$	51,499	$	51,499		$	0		$	0
	Loans including loans held for sale, net		395,443		0			0			398,491
	Stock in FRB and FHLB		10,035		0			10,035			0
	Earned income receivable		2,546		0			2,546			0
	FDIC loss share receivable		525		0			0			525
	Financial liabilities
	Deposits		550,800		0			552,467			0
	Long-term debt		14,310		0			8,250			0
	Interest payable		74		0			74			0
	December 31, 2012:
	Financial assets
	Cash and cash equivalents	$	64,509	$	64,509		$	0		$	0
	Loans including loans held for sale, net		397,424		0			0			407,145
	Stock in FRB and FHLB		10,030		0			10,030			0
	Earned income receivable		2,732		0			2,732			0
	FDIC loss share receivable		1,340		0			0			1,340
	Financial liabilities
	Deposits		559,568		0			561,871			0
	Long-term debt		15,310		0			9,165			0
	Interest payable		108		0			108			0

Condensed_Financial_Informatio1

Condensed Financial Information (Parent Company Only) (Tables)	12 Months Ended
	Dec. 31, 2013
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]	'
CONDENSED BALANCE SHEETS	'
	Presented below is condensed financial information as to financial position, results of operations and cash flows of the Company at and for the years ended December 31 (thousands):
	CONDENSED BALANCE SHEETS
		2013			2012
	Assets
	Cash and due from banks	$	7,414		$	7,167
	Investment in common stock of banking subsidiary		69,723			72,745
	Investment in nonbanking subsidiary		303			302
	Other assets		941			929
	Total assets	$	78,381		$	81,143
	Liabilities
	Long-term debt	$	9,310		$	10,310
	Other liabilities		1,036			13
	Total liabilities		10,346			10,323
	Stockholders’ Equity		68,035			70,820
	Total liabilities and stockholders’ equity	$	78,381		$	81,143
CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME	'
	CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME
		2013			2012			2011
	Income
	Dividends from banking subsidiary	$	4,100		$	4,200		$	4,000
	Dividends from non-banking subsidiary		5			45			0
	Gain on extinguishment of long-term debt		300			0			0
	Total income		4,405			4,245			4,000
	Expenses
	Interest expense		176			558			730
	Directors fees		60			70			66
	Other expenses		82			83			88
	Total expenses		318			711			884
	Income Before Income Tax and Equity in Undistributed Income of Subsidiaries		4,087			3,534			3,116
	Income Tax Benefit		(135	)		(379	)		(451	)
	Income Before Equity in Undistributed Income of Subsidiaries		4,222			3,913			3,567
	Equity in Undistributed Income (Excess Distributions) of Banking Subsidiary		20			(9	)		212
	Equity in Undistributed Income (Loss) of Nonbanking Subsidiary		1			(27	)		22
	Net Income	$	4,243		$	3,877		$	3,801
	Comprehensive Income	$	1,010		$	4,002		$	3,726
CONDENSED STATEMENTS OF CASH FLOWS	'
	CONDENSED STATEMENTS OF CASH FLOWS
		2013			2012			2011
	Operating Activities
	Net income	$	4,243		$	3,877		$	3,801
	Items providing (using) cash		(338	)		895			(685	)
	Net cash provided by operating activities		3,905			4,772			3,116
	Financing Activities
	Cash dividends paid		(3,077	)		(5,134	)		(4,109	)
	Proceeds from stock options exercised		283			52			0
	Purchase of treasury stock		(198	)		(276	)		(16	)
	Sale of treasury stock		34			185			0
	Repayment of long-term debt		(700	)		0			0
	Net cash used in financing activities		(3,658	)		(5,173	)		(4,125	)
	Net Change in Cash and Cash Equivalents		247			(401	)		(1,009	)
	Cash and Cash Equivalents at Beginning of Year		7,167			7,568			8,577
	Cash and Cash Equivalents at End of Year	$	7,414		$	7,167		$	7,568

Nature_of_Operations_and_Summa2

Nature of Operations and Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013
Summary Of Significant Accounting Policy [Line Items]	'
Maximum maturity period of liquid assets to be considered cash equivalents	'3 months
FDIC interest bearing insurance limits	$250,000
Interest-bearing cash accounts exceeding federally insured limits	41,291,000
Accrual of interest maturity period	'90 days
Mortgages to the net realizable value less costs to sell when the loan due	'180 days
Charge down to the net realizable value when other secured loans due	'120 days
Period satisfactory performance for nonaccrual loans are returned to accrual status, maximum	'6 months
Terms of Tax positions	'The term more likely than not means a likelihood of more than 50 percent; the terms examined and upon examination also include resolution of the related appeals or litigation processes, if any.
Likelihood of tax benefit realized up on examination	50.00%
Building [Member]	'
Summary Of Significant Accounting Policy [Line Items]	'
Period of buildings and building improvements depreciated	'40 years
Building Improvements [Member]	'
Summary Of Significant Accounting Policy [Line Items]	'
Period of buildings and building improvements depreciated	'10 years
Maximum [Member]	'
Summary Of Significant Accounting Policy [Line Items]	'
Period of amortization of intangible assets	'10 years
Maximum [Member] | Equipment Furniture and Fixtures [Member]	'
Summary Of Significant Accounting Policy [Line Items]	'
Period of buildings and building improvements depreciated	'7 years
Minimum [Member]	'
Summary Of Significant Accounting Policy [Line Items]	'
Period of amortization of intangible assets	'7 years
Minimum [Member] | Equipment Furniture and Fixtures [Member]	'
Summary Of Significant Accounting Policy [Line Items]	'
Period of buildings and building improvements depreciated	'3 years
Federal Reserve Bank [Member]	'
Summary Of Significant Accounting Policy [Line Items]	'
Interest-bearing cash accounts exceeding federally insured limits	$41,098,000

Restriction_on_Cash_and_Due_Fr1

Restriction on Cash and Due From Banks - Additional Information (Detail) (USD $)	Dec. 31, 2013
Cash And Securities Segregated Under Federal And Other Regulations Disclosures [Abstract]	'
Reserve funds in cash or on deposit with the Federal Reserve Bank	$2,423,000

Securities_Amortized_Cost_and_

Securities - Amortized Cost and Approximate Fair Values Including Gross Unrealized Gains and Losses of Securities (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-Sale Securities, Amortized Cost	$139,462	$129,485
Available-for-Sale Securities, Gross Unrealized Gains	1,220	3,750
Available-for-Sale Securities, Gross Unrealized Losses	-2,584	-215
Available-for-Sale Securities, Approximate Fair Value	138,098	133,020
U.S. Government Sponsored Entities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-Sale Securities, Amortized Cost	23,594	19,668
Available-for-Sale Securities, Gross Unrealized Gains	45	414
Available-for-Sale Securities, Gross Unrealized Losses	-100	0
Available-for-Sale Securities, Approximate Fair Value	23,539	20,082
U.S. Government Sponsored Entities-Residential [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-Sale Securities, Amortized Cost	59,565	66,735
Available-for-Sale Securities, Gross Unrealized Gains	793	1,389
Available-for-Sale Securities, Gross Unrealized Losses	-205	-49
Available-for-Sale Securities, Approximate Fair Value	60,153	68,075
Private Label-Residential [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-Sale Securities, Amortized Cost	1,895	3,945
Available-for-Sale Securities, Gross Unrealized Gains	56	131
Available-for-Sale Securities, Gross Unrealized Losses	0	-53
Available-for-Sale Securities, Approximate Fair Value	1,951	4,023
State and Political Subdivisions [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-Sale Securities, Amortized Cost	54,408	39,137
Available-for-Sale Securities, Gross Unrealized Gains	326	1,816
Available-for-Sale Securities, Gross Unrealized Losses	-2,279	-113
Available-for-Sale Securities, Approximate Fair Value	$52,455	$40,840

Securities_Amortized_Cost_and_1

Securities - Amortized Cost and Fair Value of Securities Available for Sale (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Available For Sale Securities Debt Maturities [Abstract]	'	'
Available-for-sale Securities, Amortized Cost, Within one year	$2,808	'
Available-for-sale Securities, Amortized Cost, One to five years	22,348	'
Available-for-sale Securities, Amortized Cost, Five to ten years	7,204	'
Available-for-sale Securities, Amortized Cost, After ten years	45,642	'
Available-for-sale Securities, Amortized Cost Basis, Total	78,002	'
Mortgage-backed securities, Amortized Cost	61,460	'
Available-for-sale securities, Amortized Cost	139,462	129,485
Available-for-sale Securities, Fair Value, Within one year	2,843	'
Available-for-sale Securities, Fair Value, One to five years	22,308	'
Available-for-sale Securities, Fair Value, Five to ten years	7,170	'
Available-for-sale Securities, Fair Value, After ten years	43,673	'
Available for Sale Securities, Fair Value, Total	75,994	'
Mortgage-backed securities, Fair Value	62,104	'
Available-for-Sale Securities, Approximate Fair Value	$138,098	$133,020

Securities_Additional_Informat

Securities - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investments Debt And Equity Securities [Abstract]	'	'	'	'
Carrying value of securities pledged as collateral, to secure public deposits and for other purposes	'	$66,965,000	$61,727,000	'
Gross Losses from sales of available-for-sale securities	'	36,000	0	1,830,000
Gross gains from sales of available-for-sale securities	'	1,044,000	1,174,000	10,000
Related tax benefit	'	343,000	'	'
Reclassification of amount realized in income	36,000	-1,008,000	-1,139,000	-1,820,000
Loss resulted from private-label collateralized	'	$36,000	'	'

Securities_Gross_Unrealized_Lo

Securities - Gross Unrealized Losses and Fair Value, Aggregated by Investment Category (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale Securities, Less than 12 months, Fair Value	$53,625	$19,558
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	-2,105	-161
Available-for-sale Securities, 12 months or more, Fair Value	3,726	1,956
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	-479	-54
Available-for-sale Securities, Fair Value, Total	57,351	21,514
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	-2,584	-215
U.S. Government Sponsored Entities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale Securities, Less than 12 months, Fair Value	4,727	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	-100	'
Available-for-sale Securities, 12 months or more, Fair Value	0	'
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	0	'
Available-for-sale Securities, Fair Value, Total	4,727	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	-100	'
U.S. Government Sponsored Entities-Residential [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale Securities, Less than 12 months, Fair Value	17,547	12,902
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	-205	-48
Available-for-sale Securities, 12 months or more, Fair Value	0	1,352
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	0	-1
Available-for-sale Securities, Fair Value, Total	17,547	14,254
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	-205	-49
Private Label-Residential [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale Securities, Less than 12 months, Fair Value	'	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	'	0
Available-for-sale Securities, 12 months or more, Fair Value	'	604
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	'	-53
Available-for-sale Securities, Fair Value, Total	'	604
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	0	-53
Municipal Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale Securities, Less than 12 months, Fair Value	31,351	6,656
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	-1,800	-113
Available-for-sale Securities, 12 months or more, Fair Value	3,726	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	-479	0
Available-for-sale Securities, Fair Value, Total	35,077	6,656
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	($2,279)	($113)

Securities_Debt_Securities_for

Securities - Debt Securities for Which Only a Credit Loss was Recognized in Income and Other Losses are Recorded (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other Than Temporary Impairment Losses Investments Availableforsale Securities [Abstract]	'	'	'
Balance, beginning of period	($119)	($118)	($170)
Additions related to other-than-temporary losses not previously recognized	0	-35	0
Reductions related to losses realized which were previously recognized	119	34	52
Balance, end of period	$0	($119)	($118)

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income - Components of Accumulated Other Comprehensive Income (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]	'	'
Net unrealized gain (loss) on available-for-sale securities	($1,364)	$3,588
Net unrealized loss on available-for-sale securities for which a portion of an other-than-temporary impairment has been recognized in income	0	-53
Change in net unrealized holding gain (loss) before taxes	-1,364	3,535
Tax effect	464	1,202
Net-of-tax amount	($900)	$2,333

Loans_and_Allowance_for_Loan_L2

Loans and Allowance for Loan Losses - Categories of Loans (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified
Loans And Leases Receivable Gross Carrying Amount By Category Alternative [Abstract]	'	'	'	'
Commercial and industrial	$36,792	$54,961	'	'
Commercial real estate	189,660	179,905	'	'
Agricultural	35,160	33,679	'	'
Residential real estate	131,032	127,007	'	'
Consumer	6,766	6,319	'	'
Total loans	399,410	401,871	'	'
Less: Net deferred loan fees, premiums and discounts	86	58	'	'
Allowance for loan losses	-4,053	-4,760	-4,668	-3,714
Net loans	$395,443	$397,169	'	'

Loans_and_Allowance_for_Loan_L3

Loans and Allowance for Loan Losses - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2013
	Segment
Loans And Leases Receivable [Line Items]	'
Residential and consumer loans segment	2
Minimum period of loan payments being current to returned to accrual status	'6 months
Period of TDRs modified as subsequently defaulted	'30 days
Loans acquired from American National Bank	19-Mar-10
Merger of Community National Corporation dated	31-Dec-09
Acquired credit impaired loans percentage	'Less than one percent
Consumer Portfolio Segment [Member] | Substandard [Member]	'
Loans And Leases Receivable [Line Items]	'
Threshold period to be classified	'90 days

Loans_and_Allowance_for_Loan_L4

Loans and Allowance for Loan Losses - Allowance for Loan Losses Based on Portfolio Segment (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for loan losses:	'	'	'
Beginning balance	$4,760	$4,668	$3,714
Charge-offs	-3,620	-4,365	-2,252
Recoveries	323	170	271
Provision	2,590	4,287	2,935
Ending Balance	4,053	4,760	4,668
Commercial [Member]	'	'	'
Allowance for loan losses:	'	'	'
Beginning balance	1,697	1,380	474
Charge-offs	-2,883	-1,513	-350
Recoveries	10	7	16
Provision	2,633	1,823	1,240
Ending Balance	1,457	1,697	1,380
Commercial Real Estate [Member]	'	'	'
Allowance for loan losses:	'	'	'
Beginning balance	2,285	2,372	2,057
Charge-offs	-415	-2,239	-1,300
Recoveries	230	59	167
Provision	-138	2,093	1,448
Ending Balance	1,962	2,285	2,372
Agricultural [Member]	'	'	'
Allowance for loan losses:	'	'	'
Beginning balance	85	231	184
Charge-offs	0	0	-2
Recoveries	0	3	6
Provision	-16	-149	43
Ending Balance	69	85	231
Residential-1 to 4 Family [Member]	'	'	'
Allowance for loan losses:	'	'	'
Beginning balance	460	373	528
Charge-offs	-120	-343	-262
Recoveries	17	15	9
Provision	0	415	98
Ending Balance	357	460	373
Residential-Home Equity [Member]	'	'	'
Allowance for loan losses:	'	'	'
Beginning balance	199	195	337
Charge-offs	-169	-161	-140
Recoveries	1	12	3
Provision	174	153	-5
Ending Balance	205	199	195
Consumer [Member]	'	'	'
Allowance for loan losses:	'	'	'
Beginning balance	34	117	134
Charge-offs	-33	-109	-198
Recoveries	65	74	70
Provision	-63	-48	111
Ending Balance	$3	$34	$117

Loans_and_Allowance_for_Loan_L5

Loans and Allowance for Loan Losses - Allowances for Loan Losses and Recorded Investment in Loans Based on Portfolio Segment and Impairment Method (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Individually Evaluated for Impairment	$526	$1,443
Collectively Evaluated for Impairment	3,527	3,317
Allowance for loan losses	4,053	4,760
Individually Evaluated for Impairment	7,309	11,148
Collectively Evaluated for Impairment	392,101	390,723
Loans	399,410	401,871
Commercial [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Individually Evaluated for Impairment	108	1,029
Collectively Evaluated for Impairment	1,349	668
Allowance for loan losses	1,457	1,697
Individually Evaluated for Impairment	902	4,489
Collectively Evaluated for Impairment	35,890	50,472
Loans	36,792	54,961
Commercial Real Estate [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Individually Evaluated for Impairment	418	413
Collectively Evaluated for Impairment	1,544	1,872
Allowance for loan losses	1,962	2,285
Individually Evaluated for Impairment	5,364	5,524
Collectively Evaluated for Impairment	184,296	174,381
Loans	189,660	179,905
Agricultural [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Individually Evaluated for Impairment	0	0
Collectively Evaluated for Impairment	69	85
Allowance for loan losses	69	85
Individually Evaluated for Impairment	38	75
Collectively Evaluated for Impairment	35,122	33,604
Loans	35,160	33,679
Residential-1 to 4 Family [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Individually Evaluated for Impairment	0	1
Collectively Evaluated for Impairment	357	459
Allowance for loan losses	357	460
Individually Evaluated for Impairment	952	1,008
Collectively Evaluated for Impairment	101,829	95,659
Loans	102,781	96,667
Residential-Home Equity [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Individually Evaluated for Impairment	0	0
Collectively Evaluated for Impairment	205	199
Allowance for loan losses	205	199
Individually Evaluated for Impairment	44	36
Collectively Evaluated for Impairment	28,207	30,304
Loans	28,251	30,340
Consumer [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Individually Evaluated for Impairment	0	0
Collectively Evaluated for Impairment	3	34
Allowance for loan losses	3	34
Individually Evaluated for Impairment	9	16
Collectively Evaluated for Impairment	6,757	6,303
Loans	$6,766	$6,319

Loans_and_Allowance_for_Loan_L6

Loans and Allowance for Loan Losses - Corporate and Consumer Credit Exposure by Category and Standard Regulatory Classification (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	$399,410	$401,871
Commercial [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	36,792	54,961
Commercial [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	32,436	47,481
Commercial [Member] | Other Assets Especially Mentioned [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	1,800	2,647
Commercial [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	2,410	4,687
Commercial [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	146	146
Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	189,660	179,905
Commercial Real Estate [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	173,630	161,671
Commercial Real Estate [Member] | Other Assets Especially Mentioned [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	3,377	3,983
Commercial Real Estate [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	12,653	14,251
Commercial Real Estate [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	0	0
Agricultural [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	35,160	33,679
Agricultural [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	35,122	33,378
Agricultural [Member] | Other Assets Especially Mentioned [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	0	226
Agricultural [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	38	75
Agricultural [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	0	0
Residential-1 to 4 Family [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	102,781	96,667
Residential-1 to 4 Family [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	100,362	94,262
Residential-1 to 4 Family [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	2,419	2,405
Residential-Home Equity [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	28,251	30,340
Residential-Home Equity [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	28,072	30,110
Residential-Home Equity [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	179	230
Consumer [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	6,766	6,319
Consumer [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	6,696	6,295
Consumer [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Loans	$70	$24

Loans_and_Allowance_for_Loan_L7

Loans and Allowance for Loan Losses - Past Due and Nonaccrual Loans (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Past Due 30 to 59 Days	$571	$1,203
Past Due 60 to 89 Days	230	182
Past Due 90+ Days	3,875	8,960
Total Past Due Days	4,676	10,345
Current	394,734	391,526
Total loans	399,410	401,871
90+ Days and Accruing	32	778
Non-accrual	5,734	9,815
Commercial [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Past Due 30 to 59 Days	309	65
Past Due 60 to 89 Days	22	91
Past Due 90+ Days	432	4,594
Total Past Due Days	763	4,750
Current	36,029	50,211
Total loans	36,792	54,961
90+ Days and Accruing	32	620
Non-accrual	890	4,418
Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Past Due 30 to 59 Days	212	602
Past Due 60 to 89 Days	0	26
Past Due 90+ Days	2,789	3,590
Total Past Due Days	3,001	4,218
Current	186,659	175,687
Total loans	189,660	179,905
90+ Days and Accruing	0	0
Non-accrual	3,402	3,950
Agricultural [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Past Due 30 to 59 Days	0	0
Past Due 60 to 89 Days	25	0
Past Due 90+ Days	28	53
Total Past Due Days	53	53
Current	35,107	33,626
Total loans	35,160	33,679
90+ Days and Accruing	0	0
Non-accrual	38	75
Residential-1 to 4 Family [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Past Due 30 to 59 Days	0	460
Past Due 60 to 89 Days	150	24
Past Due 90+ Days	502	540
Total Past Due Days	652	1,024
Current	102,129	95,643
Total loans	102,781	96,667
90+ Days and Accruing	0	134
Non-accrual	1,175	1,116
Residential-Home Equity [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Past Due 30 to 59 Days	40	54
Past Due 60 to 89 Days	32	3
Past Due 90+ Days	100	173
Total Past Due Days	172	230
Current	28,079	30,110
Total loans	28,251	30,340
90+ Days and Accruing	0	24
Non-accrual	164	196
Consumer [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Past Due 30 to 59 Days	10	22
Past Due 60 to 89 Days	1	38
Past Due 90+ Days	24	10
Total Past Due Days	35	70
Current	6,731	6,249
Total loans	6,766	6,319
90+ Days and Accruing	0	0
Non-accrual	$65	$60

Loans_and_Allowance_for_Loan_L8

Loans and Allowance for Loan Losses - Impaired Loans and Related Allowance for Loan Losses (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Impaired [Line Items]	'	'	'
Related Allowance	$526	$1,443	'
Recorded Investment	7,309	11,148	'
Unpaid Principal Balance	8,168	12,022	'
Related Allowance	526	1,443	'
Average Recorded Investment	10,060	14,582	9,027
Interest Income Recognized	296	245	187
Commercial [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Recorded Investment, With no related allowance	342	1,255	'
Unpaid Principal Balance, With no related allowance	497	1,571	'
Recorded Investment, With an allowance	560	3,234	'
Unpaid Principal Balance, With an allowance	569	3,290	'
Related Allowance	108	1,029	'
Recorded Investment	902	4,489	'
Unpaid Principal Balance	1,066	4,861	'
Related Allowance	108	1,029	'
Average Recorded Investment, With no related allowance	694	1,218	982
Interest Income Recognized, With no related allowance	51	5	0
Average Recorded Investment, With an allowance	2,725	3,264	1,090
Interest Income Recognized, With an allowance	0	0	0
Average Recorded Investment	3,419	4,482	2,072
Interest Income Recognized	51	5	0
Commercial [Member] | With No Allowance [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Related Allowance	0	0	'
Related Allowance	0	0	'
Commercial Real Estate [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Recorded Investment, With no related allowance	3,275	3,940	'
Unpaid Principal Balance, With no related allowance	3,727	4,145	'
Recorded Investment, With an allowance	2,089	1,584	'
Unpaid Principal Balance, With an allowance	2,174	1,665	'
Related Allowance	418	413	'
Recorded Investment	5,364	5,524	'
Unpaid Principal Balance	5,901	5,810	'
Related Allowance	418	413	'
Average Recorded Investment, With no related allowance	3,174	4,744	3,659
Interest Income Recognized, With no related allowance	211	202	136
Average Recorded Investment, With an allowance	2,373	3,928	2,191
Interest Income Recognized, With an allowance	0	0	0
Average Recorded Investment	5,547	8,672	5,850
Interest Income Recognized	211	202	136
Commercial Real Estate [Member] | With No Allowance [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Related Allowance	0	0	'
Related Allowance	0	0	'
Agricultural [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Recorded Investment, With no related allowance	38	75	'
Unpaid Principal Balance, With no related allowance	52	87	'
Recorded Investment, With an allowance	0	0	'
Unpaid Principal Balance, With an allowance	0	0	'
Related Allowance	0	0	'
Recorded Investment	38	75	'
Unpaid Principal Balance	52	87	'
Related Allowance	0	0	'
Average Recorded Investment, With no related allowance	45	45	0
Interest Income Recognized, With no related allowance	3	0	0
Average Recorded Investment, With an allowance	0	9	0
Interest Income Recognized, With an allowance	0	0	0
Average Recorded Investment	45	54	0
Interest Income Recognized	3	0	0
Agricultural [Member] | With No Allowance [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Related Allowance	0	0	'
Related Allowance	0	0	'
Residential-1 to 4 Family [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Recorded Investment, With no related allowance	952	1,008	'
Unpaid Principal Balance, With no related allowance	1,086	1,126	'
Recorded Investment, With an allowance	0	0	'
Unpaid Principal Balance, With an allowance	0	80	'
Related Allowance	0	1	'
Recorded Investment	952	1,008	'
Unpaid Principal Balance	1,086	1,206	'
Related Allowance	0	1	'
Average Recorded Investment, With no related allowance	963	1,293	1,105
Interest Income Recognized, With no related allowance	29	38	51
Average Recorded Investment, With an allowance	29	40	0
Interest Income Recognized, With an allowance	0	0	0
Average Recorded Investment	992	1,333	1,105
Interest Income Recognized	29	38	51
Residential-1 to 4 Family [Member] | With No Allowance [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Related Allowance	0	0	'
Related Allowance	0	0	'
Residential-Home Equity [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Recorded Investment, With no related allowance	29	36	'
Unpaid Principal Balance, With no related allowance	39	40	'
Recorded Investment, With an allowance	15	0	'
Unpaid Principal Balance, With an allowance	14	0	'
Related Allowance	0	0	'
Recorded Investment	44	36	'
Unpaid Principal Balance	53	40	'
Related Allowance	0	0	'
Average Recorded Investment, With no related allowance	35	28	0
Interest Income Recognized, With no related allowance	1	0	0
Average Recorded Investment, With an allowance	10	0	0
Interest Income Recognized, With an allowance	0	0	0
Average Recorded Investment	45	28	0
Interest Income Recognized	1	0	0
Residential-Home Equity [Member] | With No Allowance [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Related Allowance	0	0	'
Related Allowance	0	0	'
Consumer [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Recorded Investment, With no related allowance	9	16	'
Unpaid Principal Balance, With no related allowance	10	16	'
Recorded Investment, With an allowance	0	0	'
Unpaid Principal Balance, With an allowance	0	2	'
Related Allowance	0	0	'
Recorded Investment	9	16	'
Unpaid Principal Balance	10	18	'
Related Allowance	0	0	'
Average Recorded Investment, With no related allowance	12	12	0
Interest Income Recognized, With no related allowance	1	0	0
Average Recorded Investment, With an allowance	0	1	0
Interest Income Recognized, With an allowance	0	0	0
Average Recorded Investment	12	13	0
Interest Income Recognized	1	0	0
Consumer [Member] | With No Allowance [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Related Allowance	0	0	'
Related Allowance	$0	$0	'

Loans_and_Allowance_for_Loan_L9

Loans and Allowance for Loan Losses - Information Regarding Troubled Debt Restructurings (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
	Contract	Contract
Commercial [Member]	'	'
Financing Receivable Modifications Number Of Contracts [Line Items]	'	'
Number of Contracts	1	3
Pre-Modification Outstanding Recorded Investment	$24	$473
Post-Modification Outstanding Recorded Investment	22	399
Commercial Real Estate [Member]	'	'
Financing Receivable Modifications Number Of Contracts [Line Items]	'	'
Number of Contracts	2	0
Pre-Modification Outstanding Recorded Investment	1,111	0
Post-Modification Outstanding Recorded Investment	850	0
Residential [Member]	'	'
Financing Receivable Modifications Number Of Contracts [Line Items]	'	'
Number of Contracts	1	1
Pre-Modification Outstanding Recorded Investment	15	42
Post-Modification Outstanding Recorded Investment	14	36
Consumer [Member]	'	'
Financing Receivable Modifications Number Of Contracts [Line Items]	'	'
Number of Contracts	1	2
Pre-Modification Outstanding Recorded Investment	8	20
Post-Modification Outstanding Recorded Investment	$2	$16

Recovered_Sheet1

Loans and Allowance for Loan Losses - Summary of Modification on Restructured Loans (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]	'	'	'	'
Amount charged off	$3,620	$4,365	$2,252	'
Allowance Increased	4,053	4,760	4,668	3,714
Extended Maturities [Member]	'	'	'	'
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]	'	'	'	'
Recorded Investment	463	451	'	'
Amount charged off	0	0	'	'
Allowance Increased	0	0	'	'
Extended Maturities and Lowered Interest Rate [Member]	'	'	'	'
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]	'	'	'	'
Recorded Investment	423	0	'	'
Amount charged off	0	0	'	'
Allowance Increased	8	0	'	'
Lowered Interest Rate [Member]	'	'	'	'
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]	'	'	'	'
Recorded Investment	2	0	'	'
Amount charged off	0	0	'	'
Allowance Increased	$0	$0	'	'

Recovered_Sheet2

Loans and Allowance for Loan Losses - Summary of modification on troubled debt restructuring (Detail) (Consumer [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
	Contract	Contract
Consumer [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Number of Contracts	1	1
Recorded Investment	$22	$2

Premises_and_Equipment_Premise

Premises and Equipment - Premises and Equipment, Stated at Cost (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]	'	'
Total Property Plant	$35,145	$36,568
Less accumulated depreciation and amortization	-18,250	-18,151
Net premises and equipment	16,895	18,417
Land [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Total Property Plant	4,474	4,588
Buildings and Improvements [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Total Property Plant	18,537	18,922
Leasehold improvements [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Total Property Plant	445	420
Equipment [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Total Property Plant	$11,689	$12,638

Operating_Leases_Additional_In

Operating Leases - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Leases [Abstract]	'	'	'
Operating lease expense	$99,000	$94,000	$80,000

Operating_Leases_Minimum_Futur

Operating Leases - Minimum Future Lease Payments (Detail) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Leases [Abstract]	'
2014	$91
2015	91
2016	50
2017	42
2018	$42

Goodwill_Additional_Informatio

Goodwill - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Goodwill And Intangible Assets Disclosure [Abstract]	'	'
Goodwill	$3,625	$3,625

Other_Intangible_Assets_Accumu

Other Intangible Assets - Accumulated Amortization of Recognized Intangible Assets (Detail) (Core deposit intangibles [Member], USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Core deposit intangibles [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	$1,523	$4,515
Accumulated Amortization	($1,211)	($3,959)

Other_Intangible_Assets_Additi

Other Intangible Assets - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Goodwill And Intangible Assets Disclosure [Abstract]	'	'	'
Amortization of intangibles	$244	$275	$353

Other_Intangible_Assets_Estima

Other Intangible Assets - Estimated Amortization Expense (Detail) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Finite Lived Intangible Assets Future Amortization Expense [Abstract]	'
2014	$179
2015	89
2016	44
2017	0
2018	$0

InterestBearing_Deposits_Addit

Interest-Bearing Deposits - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Banking And Thrift [Abstract]	'	'
Interest-bearing deposits in denominations	$18,328,000	$26,991,000
Time deposits	430,000	1,325,000
FDIC interest bearing insurance limits	250,000	'
Insurable amount agreed by other banks to deposits with banks, maximum	$250,000	'

InterestBearing_Deposits_Sched

Interest-Bearing Deposits - Scheduled Maturities of Time Deposits (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Banking And Thrift [Abstract]	'	'
2014	$54,147	'
2015	17,282	'
2016	8,577	'
2017	5,966	'
2018	5,760	'
Thereafter	4,602	'
Interest Bearing Deposits	$96,334	$120,992

ShortTerm_Borrowings_Additiona

Short-Term Borrowings - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Short Term Borrowings [Abstract]	'	'
Short-term borrowings	$0	$0
Line of credit With Federal Home Loan Bank	30	'
Pledged securities with the Federal Reserve Bank	7.5	'
Lines of credit with two other correspondent banks	$20	'

Long_Term_Debt_Components_of_L

Long Term Debt - Components of Long-Term Debt (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Long Term Debt [Abstract]	'	'
Federal Home Loan Bank advances	$5,000	$5,000
Junior subordinated debentures	9,310	10,310
Total	$14,310	$15,310

LongTerm_Debt_Additional_Infor

Long-Term Debt - Additional Information (Detail) (USD $)	0 Months Ended	6 Months Ended	12 Months Ended
	Sep. 06, 2012	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jun. 25, 2007
			Period
Debt Disclosure [Abstract]	'	'	'	'	'	'
Federal Home Loan Bank advances secured by mortgage loans a blanket pledge of certain	'	'	$110,439,838	'	'	'
Bank advances	'	'	5,000,000	5,000,000	'	'
Fixed interest rate	7.07%	'	2.82%	'	'	'
Fixed interest rate maturity	'	'	'January 14, 2015	'	'	'
Offering capital securities	'	'	'	'	'	10,000
Liquidation amount of security	'	'	'	'	'	$1,000
Annual rate	1.50%	'	1.74%	'	'	'
Distributions on capital securities payable	'	'	'3 month LIBOR	'	'	'
Capital Securities maturity date	'	'	6-Sep-37	'	'	'
Distributions on Capital Securities Deferment Options Number	'	'	20	'	'	'
Distributions on capital securities deferment options, frequency of consecutive deferment	'	'	'semi-annual	'	'	'
Outstanding principal balance of the Capital Securities	'	'	9,000,000	10,000,000	'	'
Distributions on capital securities payable through Sept 6, 2012, Frequency of payment	'	'	'quarterly	'	'	'
Debt extinguished	'	1,000,000	'	'	'	'
Gain of extinguished debt	'	$300,000	$300,000	$0	$0	'

Income_Taxes_Provision_for_Inc

Income Taxes - Provision for Income Taxes (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Taxes currently payable	$1,092	$1,220	$1,263
Deferred income taxes	-46	-227	40
Actual tax expense	$1,046	$993	$1,303

Income_Taxes_Reconciliation_of

Income Taxes - Reconciliation of Income Tax Expense (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Computed at the statutory rate (34%)	$1,798	$1,656	$1,735
Increase (decrease) resulting from Tax exempt interest	-464	-291	-153
ESOP dividend	-131	-144	-158
Bank owned life insurance	-159	-284	-165
Other	2	56	44
Actual tax expense	$1,046	$993	$1,303

Income_Taxes_Reconciliation_of1

Income Taxes - Reconciliation of Income Tax Expense (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Percentage of statutory rate	34.00%

Income_Taxes_Tax_Effects_of_Te

Income Taxes - Tax Effects of Temporary Differences Related to Deferred Taxes (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Deferred tax assets	'	'
Allowance for loan losses	$1,337	$1,563
Accruals not currently deductible	225	235
Nonaccrual loan interest collected	271	280
Stock options not currently deductible	116	100
OREO expenses not currently deductible	240	403
Other-than-temporary impairment charge	0	37
Unrealized losses on available-for-sale securities	464	0
Other	16	23
Deferred tax asset	2,669	2,641
Deferred tax liabilities	'	'
Deferred loan costs	-242	-214
Depreciation	-477	-537
FHLB stock dividends	-1,453	-1,453
Prepaid assets currently deductible	-32	-53
Unrealized gains on available-for-sale securities	0	-1,202
ANB purchase	-981	-1,423
Non-taxable purchase accounting adjustments	-260	-262
Bad debt recapture	0	-131
Intangible asset amortization	-709	-544
Other	-35	-48
Deferred tax liabilities, gross	-4,189	-5,867
Net deferred tax liability	($1,520)	($3,226)

Regulatory_Matters_Companys_an

Regulatory Matters - Company's and the Bank's Actual and Required Capital Amounts and Ratios (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Regulatory Matters [Line Items]	'	'
Capital required for risk based capital	$79,041	$79,975
Capital required to risk weighted assets	19.10%	19.51%
Capital required for capital adequacy	33,107	32,791
Capital required for capital adequacy to risk weighted assets	8.00%	8.00%
Capital required to be well capitalized	'	'
Capital required to be well capitalized to risk weighted assets	'	'
Tier one risk based capital	74,988	75,215
Tier one risk based capital to risk weighted assets	18.12%	18.35%
Tier one risk based capital required for capital adequacy	16,553	16,396
Tier one risk based capital required for capital adequacy to risk weighted assets	4.00%	4.00%
Tier one risk based capital required to be well capitalized	'	'
Tier one risk based capital required to be well capitalized to risk weighted assets	'	'
Tier one leverage capital	74,988	75,215
Tier one leverage capital to average assets	11.56%	11.27%
Tier one leverage capital required for capital adequacy	25,952	26,701
Tier one leverage capital required for capital adequacy to average assets	4.00%	4.00%
Tier one leverage capital required to be well capitalized	'	'
Tier one leverage capital required to be well capitalized to average assets	'	'
Subsidiaries [Member]	'	'
Regulatory Matters [Line Items]	'	'
Capital required for risk based capital	71,729	71,899
Capital required to risk weighted assets	17.35%	17.55%
Capital required for capital adequacy	33,080	32,766
Capital required for capital adequacy to risk weighted assets	8.00%	8.00%
Capital required to be well capitalized	41,349	40,957
Capital required to be well capitalized to risk weighted assets	10.00%	10.00%
Tier one risk based capital	67,676	67,139
Tier one risk based capital to risk weighted assets	16.37%	16.39%
Tier one risk based capital required for capital adequacy	16,540	16,383
Tier one risk based capital required for capital adequacy to risk weighted assets	4.00%	4.00%
Tier one risk based capital required to be well capitalized	24,810	24,574
Tier one risk based capital required to be well capitalized to risk weighted assets	6.00%	6.00%
Tier one leverage capital	67,676	67,139
Tier one leverage capital to average assets	10.41%	10.12%
Tier one leverage capital required for capital adequacy	25,992	26,534
Tier one leverage capital required for capital adequacy to average assets	4.00%	4.00%
Tier one leverage capital required to be well capitalized	$32,490	$33,167
Tier one leverage capital required to be well capitalized to average assets	5.00%	5.00%

Regulatory_Matters_Additional_

Regulatory Matters - Additional Information (Detail) (USD $)	Dec. 31, 2013
Regulatory Matters [Abstract]	'
Retained earnings	$10,000

Related_Party_Transactions_Sum

Related Party Transactions - Summary of Related Party Loan Activity (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Related Party Transactions [Abstract]	'	'
Balance, January 1	$3,777	$3,011
New loans	407	1,239
Payments	-1,437	-95
Other changes	0	-378
Balance, December 31	$2,747	$3,777

Related_Party_Transactions_Add

Related Party Transactions - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Related Party Transactions [Abstract]	'	'
Deposits from related parties	$1,172,000	$1,255,000

Employee_Benefits_Additional_I

Employee Benefits - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]	'	'	'
Employee retirement compensation contribution	50.00%	'	'
Employee retirement compensation contribution by bank	3.00%	'	'
Compensation contributed to the plan	8.00%	'	'
Employer contributions charged to expense	$273,000	$164,000	$195,000
Period of level monthly or annual payments after retirement	'Twenty years after retirement	'	'
Expense charged for the agreement	$43,000	$45,000	$47,000
Straight-line interest accrual-discount factor	6.50%	'	'
ESOP shares fully allocated	308,712	351,463	'
Compensation Plan One [Member]	'	'	'
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]	'	'	'
Employee retirement compensation contribution by bank	3.00%	'	'
Compensation contributed to the plan	100.00%	'	'
Compensation Plan Two [Member]	'	'	'
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]	'	'	'
Employee retirement compensation contribution by bank	2.00%	'	'
Compensation contributed to the plan	50.00%	'	'

Stock_Options_Plans_Additional

Stock Options Plans - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Common stock	270,000	'	'
Options vest over	'3 years	'	'
Period of contractual term	'10 years	'	'
Compensation cost for the stock option expense	$192,000	$174,000	$171,000
Tax benefit for the stock option expense recognized	65,000	59,000	58,000
Options exercised	16,585	'	0
Total intrinsic value of options exercised	72,000	12,000	0
Total unrecognized compensation cost related to non-vested share-based compensation arrangements granted under the plan	$205,000	'	'
Cost expected to be recognized over a weighted-average	'10 months	'	'
Previous Plan [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Common stock	25,000	'	'
Options vest over	'5 years	'	'
President [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Common stock	30,000	'	'
Options vest over	'5 years	'	'

Stock_Option_Plans_Contractual

Stock Option Plans - Contractual Life of Option (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'	'	'
Expected volatility	49.20%	50.20%	50.40%
Weighted-average volatility	49.20%	50.20%	50.40%
Expected dividends	6.00%	6.00%	6.00%
Expected term (in years)	'6 years	'6 years	'6 years
Risk-free rate	0.90%	1.10%	2.40%
Weighted-average fair value of options granted during the year	$4.88	$5.01	$6.16

Stock_Option_Plans_Summary_of_

Stock Option Plans - Summary of Option Activity (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2011
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'	'
Outstanding, beginning of year - Shares	267,874	'
Granted - Shares	52,000	'
Exercised - Shares	16,585	0
Forfeited or expired - Shares	-35,667	'
Outstanding, end of year - Shares	267,622	'
Exercisable, end of year - Shares	197,246	'
Outstanding, beginning of year - Weighted Average Exercise Price	$20.54	'
Granted - Weighted Average Exercise Price	$19.30	'
Exercised - Weighted Average Exercise Price	$17.10	'
Forfeited or Expired - Weighted Average Exercise Price	$22.96	'
Outstanding, end of year - Weighted Average Exercise Price	$20.19	'
Exercisable, end of year - Weighted Average Exercise Price	$20.37	'
Outstanding, end of year - Weighted Average Remaining Contractual Term	'5 years 4 months 2 days	'
Exercisable, end of year - Weighted Average Remaining Contractual Term	'4 years 1 month 6 days	'
Outstanding, end of year - Aggregate Intrinsic Value	$141,763	'
Exercisable, end of year - Aggregate Intrinsic Value	$139,203	'

Earnings_Per_Share_Computation

Earnings Per Share - Computation of Earnings Per Share (Detail) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Basic earnings per share:	'	'	'
Net income	$4,243	$3,877	$3,801
Weighted average common shares outstanding	3,419,259	3,423,800	3,423,995
Basic Earnings Per Share	$1.24	$1.13	$1.11
Diluted earnings per share:	'	'	'
Net income	$4,243	$3,877	$3,801
Weighted average common shares outstanding	3,419,259	3,423,800	3,423,995
Effect of dilutive securities - stock options	11,458	6,550	12,364
Average shares and dilutive potential common shares	3,430,717	3,430,350	3,436,359
Diluted Earnings Per Share	$1.24	$1.13	$1.11

Earnings_Per_Share_Additional_

Earnings Per Share - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Dilutive Securities Included And Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'
Shares not considered in computing earnings per share	197,100	212,267	193,600
Minimum [Member]	'	'	'
Dilutive Securities Included And Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'
Common stock option exercise prices	19.22	19	20.88
Maximum [Member]	'	'	'
Dilutive Securities Included And Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'
Common stock option exercise prices	30.5	30.5	30.5

Commitments_and_Contingencies_1

Commitments and Contingencies - Summary of Outstanding Commitments (Detail) (Commercial [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Commercial [Member]	'	'
Summary Of Outstanding Commitments To Originate Loans And To Advance Additional Amounts [Line Items]	'	'
Commitments at variable rates of interest	$3,090	$18,394
Commitments at fixed rates of interest	130	4,200
Total business loan commitments	$3,220	$22,594

Commitments_and_Contingencies_2

Commitments and Contingencies - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Loss Contingencies [Line Items]	'	'
Commitments extended over varying periods	'1 year	'
Federal funds sold	$443	$422
Maximum [Member]	'	'
Loss Contingencies [Line Items]	'	'
Normal period of mortgage loans	'90 days	'
Minimum [Member]	'	'
Loss Contingencies [Line Items]	'	'
Normal period of mortgage loans	'60 days	'

Commitments_and_Contingencies_3

Commitments and Contingencies - Total Outstanding Letters of Credit (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Commitments And Contingencies [Line Items]	'	'
Letters of credit	747	1,742
Minimum [Member]	'	'
Commitments And Contingencies [Line Items]	'	'
Range of terms	'30 days	'30 days
Maximum [Member]	'	'
Commitments And Contingencies [Line Items]	'	'
Range of terms	'2 years	'1 year

Commitment_and_Contingencies_T

Commitment and Contingencies - Total Mortgage Loans in Process of Origination Amount (Detail) (Commercial [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Commercial [Member]	'	'
Loans And Leases [Line Items]	'	'
Commitments to originate mortgage loans	$410	$2,276
Commitments at fixed rates of interest	410	2,056
Commitments to sell mortgage loans	$0	$255

Commitment_and_Contingencies_T1

Commitment and Contingencies - Total Outstanding Lines of Credit (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Commercial [Member]	'	'
Line of Credit Facility [Line Items]	'	'
Commercial lines	$33,670	$29,700
Consumer Portfolio Segment [Member]	'	'
Line of Credit Facility [Line Items]	'	'
Commercial lines	$41,617	$40,886

Fair_Value_Measurements_Fair_V

Fair Value Measurements - Fair Value Measurements of Assets Measured at Fair Value on a Recurring Basis (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]	'	'
Available-for-sale securities	$138,098	$133,020
Fair Value, Measurements, Recurring [Member]	'	'
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]	'	'
Available-for-sale securities	138,098	133,020
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]	'	'
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]	'	'
Available-for-sale securities	0	0
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]	'	'
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]	'	'
Available-for-sale securities	138,098	133,020
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]	'	'
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]	'	'
Available-for-sale securities	$0	$0

Fair_Value_Measurements_Fair_V1

Fair Value Measurements - Fair Value Measurements of Assets Measured at Fair Value on a Nonrecurring Basis (Detail) (Fair Value, Measurements, Nonrecurring [Member], USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]	'	'
Impaired loans	$2,907	$2,047
Other real estate owned	140	613
Level 1 [Member]	'	'
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]	'	'
Impaired loans	0	0
Other real estate owned	0	0
Level 2 [Member]	'	'
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]	'	'
Impaired loans	0	0
Other real estate owned	0	0
Level 3 [Member]	'	'
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]	'	'
Impaired loans	2,907	2,047
Other real estate owned	$140	$613

Fair_Value_Measurements_Quanti

Fair Value Measurements - Quantitative Information about Unobservable Inputs Used in Recurring and Nonrecurring Level 3 Fair Value Measurements Other than Goodwill (Detail) (Level 3 [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Impaired Loans [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Fair Value	$2,907	$2,047
Valuation Technique	'Market comparable properties	'Market comparable properties
Estimated Cost	10.00%	10.00%
Other Real Estate Owned [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Fair Value	$140	$613
Valuation Technique	'Market comparable properties	'Market comparable properties
Estimated Cost	10.00%	10.00%

Fair_Value_Measurements_Estima

Fair Value Measurements - Estimated Fair Values of Financial Instruments (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Carrying Amount [Member]	'	'
Financial assets	'	'
Cash and cash equivalents	$51,499	$64,509
Loans including loans held for sale, net	395,443	397,424
Stock in FRB and FHLB	10,035	10,030
Earned income receivable	2,546	2,732
FDIC loss share receivable	525	1,340
Financial liabilities	'	'
Deposits	550,800	559,568
Long-term debt	14,310	15,310
Interest payable	74	108
Level 1 [Member] | Estimate of Fair Value Measurement [Member]	'	'
Financial assets	'	'
Cash and cash equivalents	51,499	64,509
Loans including loans held for sale, net	0	0
Stock in FRB and FHLB	0	0
Earned income receivable	0	0
FDIC loss share receivable	0	0
Financial liabilities	'	'
Deposits	0	0
Long-term debt	0	0
Interest payable	0	0
Level 2 [Member] | Estimate of Fair Value Measurement [Member]	'	'
Financial assets	'	'
Cash and cash equivalents	0	0
Loans including loans held for sale, net	0	0
Stock in FRB and FHLB	10,035	10,030
Earned income receivable	2,546	2,732
FDIC loss share receivable	0	0
Financial liabilities	'	'
Deposits	552,467	561,871
Long-term debt	8,250	9,165
Interest payable	74	108
Level 3 [Member] | Estimate of Fair Value Measurement [Member]	'	'
Financial assets	'	'
Cash and cash equivalents	0	0
Loans including loans held for sale, net	398,491	407,145
Stock in FRB and FHLB	0	0
Earned income receivable	0	0
FDIC loss share receivable	525	1,340
Financial liabilities	'	'
Deposits	0	0
Long-term debt	0	0
Interest payable	$0	$0

Condensed_Financial_Informatio2

Condensed Financial Information (Parent Company Only) - Summary of Condensed Balance Sheet (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified
Assets	'	'	'	'
Cash and due from banks	$9,155	$14,085	'	'
Other assets	1,999	2,451	'	'
Total assets	638,312	651,075	'	'
Liabilities	'	'	'	'
Long-term debt	14,310	15,310	'	'
Other liabilities	5,167	5,377	'	'
Total liabilities	570,277	580,255	'	'
Stockholders' Equity	68,035	70,820	70,790	71,019
Total liabilities and stockholders' equity	638,312	651,075	'	'
Parent Company [Member]	'	'	'	'
Assets	'	'	'	'
Cash and due from banks	7,414	7,167	'	'
Investment in common stock of banking subsidiary	69,723	72,745	'	'
Investment in nonbanking subsidiary	303	302	'	'
Other assets	941	929	'	'
Total assets	78,381	81,143	'	'
Liabilities	'	'	'	'
Long-term debt	9,310	10,310	'	'
Other liabilities	1,036	13	'	'
Total liabilities	10,346	10,323	'	'
Stockholders' Equity	68,035	70,820	'	'
Total liabilities and stockholders' equity	$78,381	$81,143	'	'

Condensed_Financial_Informatio3

Condensed Financial Information (Parent Company Only) - Summary of Condensed Statement of Income (Detail) (USD $)	6 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income	'	'	'	'
Dividends from subsidiary	'	$438	$461	$443
Gain on extinguishment of long-term debt	300	300	0	0
Expenses	'	'	'	'
Interest expense	'	1,844	3,169	4,734
Other expenses	'	1,473	1,369	1,267
Income Before Income Tax and Equity in Undistributed Income of Subsidiaries	'	5,289	4,870	5,104
Income Tax Benefit	'	1,046	993	1,303
Net income	'	4,243	3,877	3,801
Comprehensive Income	'	1,010	4,002	3,726
Parent Company [Member]	'	'	'	'
Income	'	'	'	'
Gain on extinguishment of long-term debt	'	300	0	0
Total income	'	4,405	4,245	4,000
Expenses	'	'	'	'
Interest expense	'	176	558	730
Directors fees	'	60	70	66
Other expenses	'	82	83	88
Total expenses	'	318	711	884
Income Before Income Tax and Equity in Undistributed Income of Subsidiaries	'	4,087	3,534	3,116
Income Tax Benefit	'	-135	-379	-451
Income Before Equity in Undistributed Income of Subsidiaries	'	4,222	3,913	3,567
Net income	'	4,243	3,877	3,801
Comprehensive Income	'	1,010	4,002	3,726
Parent Company [Member] | Banking subsidiary [Member]	'	'	'	'
Income	'	'	'	'
Dividends from subsidiary	'	4,100	4,200	4,000
Expenses	'	'	'	'
Equity in Undistributed Income (loss) (Excess Distributions) of Subsidiary	'	20	-9	212
Parent Company [Member] | Non-banking subsidiary [Member]	'	'	'	'
Income	'	'	'	'
Dividends from subsidiary	'	5	45	0
Expenses	'	'	'	'
Equity in Undistributed Income (loss) (Excess Distributions) of Subsidiary	'	$1	($27)	$22

Condensed_Financial_Informatio4

Condensed Financial Information (Parent Company Only) - Summary of Condensed Statement of Cash Flows (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Activities	'	'	'
Net income	$4,243	$3,877	$3,801
Net cash provided by operating activities	12,804	11,576	12,426
Financing Activities	'	'	'
Cash dividends paid	-3,077	-5,134	-4,109
Proceeds from stock options exercised	283	52	0
Purchase of treasury stock	-198	-276	-16
Sale of treasury stock	34	185	0
Repayment of long-term debt	-700	0	0
Net cash used in financing activities	-12,426	-26,988	-19,894
Decrease in Cash and Cash Equivalents	-13,010	-11,159	-6,083
Cash and Cash Equivalents, Beginning of Year	64,509	75,668	81,751
Cash and Cash Equivalents, End of Year	51,499	64,509	75,668
Parent Company [Member]	'	'	'
Operating Activities	'	'	'
Net income	4,243	3,877	3,801
Items providing (using) cash	-338	895	-685
Net cash provided by operating activities	3,905	4,772	3,116
Financing Activities	'	'	'
Cash dividends paid	-3,077	-5,134	-4,109
Proceeds from stock options exercised	283	52	0
Purchase of treasury stock	-198	-276	-16
Sale of treasury stock	34	185	0
Repayment of long-term debt	-700	0	0
Net cash used in financing activities	-3,658	-5,173	-4,125
Decrease in Cash and Cash Equivalents	247	-401	-1,009
Cash and Cash Equivalents, Beginning of Year	7,167	7,568	8,577
Cash and Cash Equivalents, End of Year	$7,414	$7,167	$7,568