Citizens Holding (CIZN) 10-Q 9 Nov 16 2016 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Nov. 05, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q3
Trading Symbol	CIZN
Entity Registrant Name	CITIZENS HOLDING CO /MS/
Entity Central Index Key	1,075,706
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		4,875,079

Consolidated Statements of Cond

Consolidated Statements of Condition - USD ($)	Sep. 30, 2016	Dec. 31, 2015
ASSETS
Cash and due from banks	$ 22,727,843	$ 14,947,690
Interest bearing deposits with other banks	79,169,722	42,267,777
Investment securities held to maturity, at amortized cost		161,043,404
Investment securities available for sale, at fair value	456,651,317	267,264,403
Loans, net of allowance for loan losses of $4,113,442 in 2016 and $6,473,703 in 2015	405,905,192	423,108,391
Premises and equipment, net	18,256,915	18,655,691
Other real estate owned, net	4,897,928	3,572,744
Accrued interest receivable	4,333,839	3,928,106
Cash surrender value of life insurance	23,658,376	23,133,644
Deferred tax assets, net	3,140,049	9,165,417
Other assets	6,385,016	6,417,275
TOTAL ASSETS	1,025,126,197	973,504,542
Deposits:
Noninterest-bearing demand	153,457,624	148,724,257
Interest-bearing NOW and money market accounts	353,925,816	323,381,170
Savings deposits	73,122,905	70,534,886
Certificates of deposit	199,957,109	210,764,475
Total deposits	780,463,454	753,404,788
Securities sold under agreement to repurchase	118,054,055	104,298,182
Federal Home Loan Bank advances	20,000,000	20,000,000
Accrued interest payable	167,601	179,995
Deferred compensation payable	8,085,306	7,718,624
Other liabilities	1,284,407	1,477,617
Total liabilities	928,054,823	887,079,206
SHAREHOLDERS' EQUITY
Common stock; $0.20 par value, 22,500,000 shares authorized, 4,882,579 shares issued and outstanding at September 30, 2016 and 4,875,079 shares issued and outstanding at December 31, 2015	976,516	975,016
Additional paid-in capital	3,761,873	3,617,279
Retained earnings	90,492,527	88,949,360
Accumulated other comprehensive income (loss), net of tax (expense) benefit of ($1,094,882) in 2016 and $4,233,473 in 2015	1,840,458	(7,116,319)
Total shareholders' equity	97,071,374	86,425,336
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 1,025,126,197	$ 973,504,542

Consolidated Statements of Con3

Consolidated Statements of Condition (Parenthetical) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Loans, allowance for loan losses	$ 4,113,442	$ 6,473,703
Common stock, par value	$ 0.20	$ 0.20
Common stock, shares authorized	22,500,000	22,500,000
Common stock, shares issued	4,882,579	4,875,079
Common stock, shares outstanding	4,882,579	4,875,079
Accumulated other comprehensive income (loss), tax (expense) benefit	$ (1,094,882)	$ 4,233,473

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
INTEREST INCOME
Loans, including fees	$ 4,825,800	$ 5,037,766	$ 14,344,314	$ 15,033,778
Investment securities	2,719,014	2,736,657	8,286,600	8,095,751
Other interest	28,813	14,038	147,781	61,322
Total interest income	7,573,627	7,788,461	22,778,695	23,190,851
INTEREST EXPENSE
Deposits	447,554	468,565	1,366,412	1,350,490
Other borrowed funds	305,934	297,060	911,213	901,993
Total interest expense	753,488	765,625	2,277,625	2,252,483
NET INTEREST INCOME	6,820,139	7,022,836	20,501,070	20,938,368
PROVISION FOR LOAN LOSSES	184,018	141,704	97,468	407,698
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	6,636,121	6,881,132	20,403,602	20,530,670
OTHER INCOME
Service charges on deposit accounts	1,009,486	1,036,964	2,794,790	2,877,841
Other service charges and fees	658,644	626,283	1,852,141	1,721,297
Other operating income	411,528	354,366	1,156,554	1,022,071
Total other income	2,079,658	2,017,613	5,803,485	5,621,209
OTHER EXPENSES
Salaries and employee benefits	3,460,948	3,341,356	10,341,493	10,038,040
Occupancy expense	1,329,796	1,356,655	3,867,043	3,952,914
Other operating expense	1,766,669	1,776,868	5,648,661	5,292,049
Total other expenses	6,557,413	6,474,879	19,857,197	19,283,003
INCOME BEFORE PROVISION FOR INCOME TAXES	2,158,366	2,423,866	6,349,890	6,868,876
PROVISION FOR INCOME TAXES	406,076	587,405	1,292,427	1,610,282
NET INCOME	$ 1,752,290	$ 1,836,461	$ 5,057,463	$ 5,258,594
NET INCOME PER SHARE
-Basic	$ 0.36	$ 0.38	$ 1.04	$ 1.08
-Diluted	0.36	0.38	1.04	1.08
DIVIDENDS PAID PER SHARE	$ 0.24	$ 0.23	$ 0.72	$ 0.69

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 1,752,290	$ 1,836,461	$ 5,057,463	$ 5,258,594
Other comprehensive income
Unrealized holding gains	(556,424)	2,226,566	2,882,502	(781,509)
Income tax effect	207,546	(830,509)	(1,075,174)	291,503
Net unrealized gains	(348,878)	1,396,057	1,807,328	(490,006)
Securities transferred from available-for-sale to held-to-maturity
Amortization of net unrealized losses during the period	6,183,648	539,239	11,305,439	2,013,183
Income tax effect	(2,306,501)	(201,136)	(4,216,929)	(750,917)
Net unrealized (losses) gains, securities held-to-maturity	3,877,147	338,103	7,088,510	1,262,266
Reclassification adjustment for gains included in net income	60,053	13,699	97,191	13,699
Income tax effect	(22,400)	(5,110)	(36,252)	(5,110)
Net gains included in net income	37,653	8,589	60,939	8,589
Total other comprehensive income	3,565,922	1,742,749	8,956,777	780,849
Comprehensive income	$ 5,318,212	$ 3,579,210	$ 14,014,240	$ 6,039,443

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES
Net cash provided by operating activities	$ 18,157,449	$ 6,514,046
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from maturities and calls of securities available for sale	112,497,410	26,701,814
Proceeds from maturities and calls of securities held to maturity	161,829,797	10,000,000
Purchases of investment securities available for sale	(301,273,861)	(103,451,898)
Proceeds from sales of investment securities available for sale	764,023	5,754,991
Purchases of bank premises and equipment	(335,501)	(271,777)
(Increase) decrease in interest bearing deposits with other banks	(36,901,945)	60,406,710
Proceeds from sale of other real estate	790,032	1,102,141
Purchase of Federal Home Loan Bank Stock	(3,600)
Redemption of Federal Home Loan Bank Stock		150,700
Net decrease (increase) in loans	14,956,106	(41,787,893)
Net cash used by investing activities	(47,677,539)	(41,395,212)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposits	27,058,666	52,547,618
Net change in securities sold under agreement to repurchase	13,755,873	(24,856,601)
Increase in Federal Funds Purchased		8,600,000
Repurchase of stock		(123,292)
Exercise of stock options		27,000
Excess tax benefits on stock options exercised		1,001
Payment of dividends	(3,514,296)	(3,370,751)
Net cash provided by financing activities	37,300,243	32,824,975
Net increase (decrease) in cash and due from banks	7,780,153	(2,056,191)
Cash and due from banks, beginning of period	14,947,690	22,405,730
Cash and due from banks, end of period	$ 22,727,843	$ 20,349,539

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2016
Accounting Policies [Abstract]
Basis of Presentation	Note 1. Basis of Presentation These interim consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). However, these interim consolidated financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. The interim consolidated financial statements are unaudited and reflect all adjustments and reclassifications, which, in the opinion of management, are necessary for a fair presentation of the results of operations and financial condition as of and for the interim periods presented. All adjustments and reclassifications are of a normal and recurring nature. Results for the period ended September 30, 2016 are not necessarily indicative of the results that may be expected for any other interim period or for the year as a whole. The interim consolidated financial statements of Citizens Holding Company include the accounts of its wholly-owned subsidiary, The Citizens Bank of Philadelphia (the “Bank” and collectively with Citizens Holding Company, the “Corporation”). All significant intercompany transactions have been eliminated in consolidation. For further information and significant accounting policies of the Corporation, see the Notes to Consolidated Financial Statements of Citizens Holding Company included in the Corporation’s Annual Report on Form 10-K for the year ended December 31, 2015, filed with the Securities and Exchange Commission on March 15, 2016.

Commitments and Contingent Liab

Commitments and Contingent Liabilities	9 Months Ended
	Sep. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	Note 2. Commitments and Contingent Liabilities In the ordinary course of business, the Corporation enters into commitments to extend credit to its customers. The unused portion of these commitments is not reflected in the accompanying financial statements. As of September 30, 2016, the Corporation had entered into loan commitments with certain customers with an aggregate unused balance of $39,951,717 compared to an aggregate unused balance of $44,358,972 at December 31, 2015. There were $3,358,480 of letters of credit outstanding at September 30, 2016 and $2,860,480 at December 31, 2015. The fair value of such commitments is not considered material because letters of credit and loan commitments often are not used in their entirety, if at all, before they expire. The balances of such letters and commitments should not be used to project actual future liquidity requirements. However, the Corporation does incorporate expectations about the utilization under its credit-related commitments and into its asset and liability management program. The Corporation is a party to lawsuits and other claims that arise in the ordinary course of business, all of which are being vigorously contested. In the regular course of business, management evaluates estimated losses or costs related to litigation, and provisions are made for anticipated losses whenever management believes that such losses are probable and can be reasonably estimated. At the present time, management believes, based on the advice of legal counsel, that the final resolution of pending legal proceedings will not likely have a material impact on the Corporation’s consolidated financial condition or results of operations.

Net Income per Share

Net Income per Share	9 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
Net Income per Share	Note 3. Net Income per Share Net income per share - basic has been computed based on the weighted average number of shares outstanding during each period. Net income per share - diluted has been computed based on the weighted average number of shares outstanding during each period plus the dilutive effect of outstanding stock options using the treasury stock method. Net income per share was computed as follows: For the Three Months For the Nine Months Ended September 30, Ended September 30, 2016 2015 2016 2015 Basic weighted average shares outstanding 4,869,079 4,877,614 4,864,924 4,872,092 Dilutive effect of granted options 8,614 1,170 8,316 904 Diluted weighted average shares outstanding 4,877,693 4,878,784 4,873,240 4,872,996 Net income $ 1,752,290 $ 1,836,461 $ 5,057,463 $ 5,258,594 Net income per share-basic $ 0.36 $ 0.38 $ 1.04 $ 1.08 Net income per share-diluted $ 0.36 $ 0.38 $ 1.04 $ 1.08

Equity Compensation Plans

Equity Compensation Plans	9 Months Ended
	Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Equity Compensation Plans	Note 4. Equity Compensation Plans The Corporation has adopted the 2013 Incentive Compensation Plan (the “2013 Plan”), which the Corporation intends to use for all future equity grants to employees, directors or consultants until the termination or expiration of the 2013 Plan. Prior to the adoption of the 2013 Plan, the Corporation utilized two stock-based compensation plans, the 1999 Directors’ Stock Compensation Plan (the “Directors’ Plan”) for directors, and the 1999 Employees’ Long-Term Incentive Plan (the “Employees’ Plan”) for employees, both of which have expired. The following table is a summary of the stock option activity for the nine months ended September 30, 2016. Directors’ Plan Employees’ Plan 2013 Plan Weighted Weighted Weighted Number Average Number Average Number Average of Exercise of Exercise of Exercise Shares Price Shares Price Shares Price Outstanding at December 31, 2015 87,000 $ 21.35 23,000 $ 23.46 — $ — Granted — — — — — — Exercised — — — — — — Expired (9,000 ) 23.70 (23,000 ) 23.46 — — Outstanding at September 30, 2016 78,000 $ 21.08 — $ — — $ — The intrinsic value of options previously granted under the Directors’ Plan at September 30, 2016, was $203,175, the intrinsic value of options previously granted under the Employees’ Plan at September 30, 2016, was $0, and since there were no options granted under the 2013 Plan during the nine-month period ended September 30, 2016, the current intrinsic value for the 2013 Plan at September 30, 2016 is $0, for an aggregate intrinsic value at September 30, 2016, of $203,175. During the quarter ended June 30, 2016, the Corporation’s directors received restricted stock grants totaling 7,500 shares of common stock under the 2013 Plan. These grants vest over a one-year period ending April 27, 2017 during which time the recipients have rights to vote the shares and to receive dividends. The grant date fair value of these shares was $161,325 and will be recognized over the one-year vesting period at a cost of $13,444 per month less deferred taxes of $5,016 per month. Also during the quarter ended June 30, 2016, there were 1,500 shares of restricted stock that vested pursuant to an incentive plan for senior management.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Note 5. Income Taxes The income tax topic of the Accounting Standards Codification (“ASC”) defines the threshold for recognizing the benefits of tax return positions in the financial statements as “more-likely-than-not” to be sustained by the taxing authority. This topic also provides guidance on the de-recognition, measurement and classification of income tax uncertainties, along with any related interest and penalties, and includes guidance concerning accounting for income tax uncertainties in interim periods. As of September 30, 2016, the Corporation had no unrecognized tax benefits related to federal and state income tax matters. Therefore, the Corporation does not anticipate any material increase or decrease in the effective tax rate during 2016 relative to any tax positions taken. It is the Corporation’s policy to recognize interest or penalties related to income tax matters in income tax expense. The Corporation files a consolidated United States federal income tax return. The Corporation is currently open to audit under the statute of limitations by the Internal Revenue Service for all tax years after 2013. The Corporation’s consolidated state income tax returns are also open to audit under the statute of limitations for the same period.

Securities

Securities	9 Months Ended
	Sep. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Securities	Note 6. Securities The amortized cost and estimated fair value of securities available-for-sale and the corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive income were as follows: Gross Gross September 30, 2016 Amortized Unrealized Unrealized Estimated Cost Gains Losses Fair Value Securities available-for-sale Obligations of U.S. Government agencies $ 169,085,427 $ 840,946 $ 139,652 $ 169,786,721 Mortgage backed securities 129,312,239 976,404 436,597 129,852,046 State, County, Municipals 152,433,503 3,076,906 1,438,818 154,071,591 Other investments 2,884,808 56,151 — 2,940,959 Total $ 453,715,977 $ 4,950,407 $ 2,015,067 $ 456,651,317 Gross Gross December 31, 2015 Amortized Unrealized Unrealized Estimated Cost Gains Losses Fair Value Securities available-for-sale Obligations of U.S. Government agencies $ 83,826,411 $ 1,100 $ 1,577,145 $ 82,250,366 Mortgage backed securities 92,602,875 467,693 1,348,603 91,721,965 State, County, Municipals 87,948,336 2,609,469 181,442 90,376,363 Other investments 2,931,134 — 15,425 2,915,709 Total $ 267,308,756 $ 3,078,262 $ 3,122,615 $ 267,264,403 During the nine months ended September 30, 2016 all of the securities that were classified as held-to-maturity were called or matured and the Corporation does not intend to purchase other securities to be classified as held-to-maturity at this time. This decision to not invest in securities classified held-to-maturity is the main reason for the increase in available-for-sale securities during the nine-month period ended September 30, 2016. In conjunction with the call and maturity of all held-to-maturity securities, the remaining associated balance of unrealized losses in other comprehensive income was fully amortized in the third quarter of 2016. At December 31, 2015, the amortized cost and estimated fair value of securities held-to-maturity and the corresponding amounts of gross unrecognized gains and losses were as follows: Gross Gross December 31, 2015 Amortized Unrealized Unrealized Estimated Cost Gains Losses Fair Value Securities held-to-maturity Obligations of U.S. Government agencies $ 161,043,404 $ 8,002,431 $ — $ 169,045,835 Total $ 161,043,404 $ 8,002,431 $ — $ 169,045,835 The amortized cost and estimated fair value of securities by contractual maturity at September 30, 2016 and December 31, 2015 are shown below. Actual maturities may differ from contractual maturities because issuers have the right to call or prepay certain obligations. September 30, 2016 December 31, 2015 Amortized Estimated Amortized Estimated Cost Fair Value Cost Fair Value Available-for-sale Due in one year or less $ 7,477,707 $ 7,546,148 $ 3,008,448 $ 3,028,887 Due after one year through five years 19,439,088 20,255,518 13,587,885 13,985,525 Due after five years through ten years 107,939,900 108,841,086 80,749,532 80,346,720 Due after ten years 318,859,282 320,008,565 169,962,891 169,903,271 Total $ 453,715,977 $ 456,651,317 $ 267,308,756 $ 267,264,403 Held-to-maturity Due in one year or less $ — $ — $ — $ — Due after five years through ten years — — 37,052,187 38,528,059 Due after ten years — — 123,991,217 130,517,776 Total $ — $ — $ 161,043,404 $ 169,045,835 The tables below show the Corporation’s gross unrealized losses and fair value of available-for-sale and held-to-maturity investments, aggregated by investment category and length of time that individual investments were in a continuous loss position at September 30, 2016 and December 31, 2015. A summary of unrealized loss information for securities available-for-sale, categorized by security type follows (in thousands): September 30, 2016 Less than 12 months 12 months or more Total Description of Securities Fair Unrealized Fair Unrealized Fair Unrealized Obligations of U.S. government agencies $ 50,356 $ 80 $ 4,905 $ 60 $ 55,261 $ 140 Mortgage backed securities 30,835 291 27,143 145 57,978 436 State, County, Municipal 60,869 1,412 3,260 27 64,129 1,439 Total $ 142,060 $ 1,783 $ 35,308 $ 232 $ 177,368 $ 2,015 Less than 12 months 12 months or more Total December 31, 2015 Fair Unrealized Fair Unrealized Fair Unrealized Description of Securities Obligations of U.S. government agencies $ 50,915 $ 716 $ 26,335 $ 861 $ 77,250 $ 1,577 Mortgage backed securities 83,001 1,349 — — 83,001 1,349 State, County, Municipal 2,393 10 12,623 172 15,016 182 Other investments — — 2,916 15 2,916 15 Total $ 136,309 $ 2,075 $ 41,874 $ 1,048 $ 178,183 $ 3,123 The Corporation’s unrealized losses on its obligations of United States government agencies, mortgage backed securities and state, county and municipal bonds are the result of an upward trend in interest rates, mainly in the mid-term sector. None of the unrealized losses disclosed in the previous table are related to credit deterioration. The Corporation has determined that none of the securities in this classification were other-than-temporarily impaired at September 30, 2016 nor at December 31, 2015.

Loans

Loans	9 Months Ended
	Sep. 30, 2016
Receivables [Abstract]
Loans	Note 7. Loans The composition of net loans (in thousands) at September 30, 2016 and December 31, 2015 was as follows: September 30, 2016 December 31, 2015 Real Estate: Land Development and Construction $ 23,346 $ 33,133 Farmland 19,902 23,293 1-4 Family Mortgages 100,301 104,046 Commercial Real Estate 191,956 180,691 Total Real Estate Loans 335,505 341,163 Business Loans: Commercial and Industrial Loans 54,208 61,425 Farm Production and Other Farm Loans 887 1,055 Total Business Loans 55,095 62,480 Consumer Loans: Credit Cards 1,003 1,061 Other Consumer Loans 19,102 25,564 Total Consumer Loans 20,105 26,625 Total Gross Loans 410,705 430,268 Unearned Income (687 ) (686 ) Allowance for Loan Losses (4,113 ) (6,474 ) Loans, net $ 405,905 $ 423,108 Loans are considered to be past due if the required principal and interest payments have not been received as of the date such payments were due. Loans are placed on non-accrual status, when, in management’s opinion, the borrower may be unable to meet payment obligations as they become due, as well as when required by regulatory provisions. Loans may be placed on non-accrual status regardless of whether such loans are considered past due. When interest accruals are discontinued, all unpaid accrued interest is reversed. Interest income is subsequently recognized only to the extent cash payments are received in excess of principal due. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. Period-end, non-accrual loans (in thousands), segregated by class, were as follows: September 30, 2016 December 31, 2015 Real Estate: Land Development and Construction $ 139 $ 75 Farmland 537 158 1-4 Family Mortgages 2,145 2,464 Commercial Real Estate 6,827 11,662 Total Real Estate Loans 9,648 14,359 Business Loans: Commercial and Industrial Loans 55 28 Total Business Loans 55 28 Consumer Loans: Other Consumer Loans 31 36 Total Consumer Loans 31 36 Total Nonaccrual Loans $ 9,734 $ 14,423 An aging analysis of past due loans (in thousands), segregated by class, as of September 30, 2016, was as follows: Loans 30-89 Days Loans Total Past Current Total Accruing Real Estate: Land Development and Construction $ 199 $ 78 $ 277 $ 23,069 $ 23,346 $ — Farmland 233 407 640 19,262 19,902 — 1-4 Family Mortgages 6,326 1,720 8,046 92,255 100,301 1,067 Commercial Real Estate 1,022 1,923 2,945 189,011 191,956 — Total Real Estate Loans 7,780 4,128 11,908 323,597 335,505 1,067 Business Loans: Commercial and Industrial Loans 292 77 369 53,839 54,208 22 Farm Production and Other Farm Loans 11 — 11 876 887 — Total Business Loans 303 77 380 54,715 55,095 22 Consumer Loans: Credit Cards 9 2 11 992 1,003 2 Other Consumer Loans 751 — 751 18,351 19,102 — Total Consumer Loans 760 2 762 19,343 20,105 2 Total Loans $ 8,843 $ 4,207 $ 13,050 $ 397,655 $ 410,705 $ 1,091 An aging analysis of past due loans (in thousands), segregated by class, as of December 31, 2015 was as follows: Loans 30-89 Days Loans Total Past Current Total Accruing Real Estate: Land Development and Construction $ 1,126 $ 21 $ 1,147 $ 31,986 $ 33,133 $ 21 Farmland 947 4 951 22,342 23,293 4 1-4 Family Mortgages 5,131 573 5,704 98,342 104,046 — Commercial Real Estate 4,015 6,748 10,763 169,928 180,691 — Total Real Estate Loans 11,219 7,346 18,565 322,598 341,163 25 Business Loans: Commercial and Industrial Loans 245 12 257 61,168 61,425 12 Farm Production and Other Farm Loans 12 — 12 1,043 1,055 — Total Business Loans 257 12 269 62,211 62,480 12 Consumer Loans: Credit Cards 12 9 21 1,040 1,061 9 Other Consumer Loans 1,017 30 1,047 24,517 25,564 30 Total Consumer Loans 1,029 39 1,068 25,557 26,625 39 Total Loans $ 12,505 $ 7,397 $ 19,902 $ 410,366 $ 430,268 $ 76 Loans are considered impaired when, based on current information and events, it is probable the Corporation will be unable to collect all amounts due in accordance with the original contractual terms of the loan agreement, including scheduled principal and interest payments. In determining which loans to evaluate for impairment, management looks at all loans over $100,000 that are past due loans, bankruptcy filings and any situation that might lend itself to cause a borrower to be unable to repay the loan according to the original agreement terms. If a loan is determined to be impaired and the collateral is deemed to be insufficient to fully repay the loan, a specific reserve will be established. Interest payments on impaired loans are typically applied to principal unless collectability of the principal amount is reasonably assured, in which case interest is recognized on a cash basis. Impaired loans or portions thereof, are charged-off when deemed uncollectible. Impaired loans (in thousands) as of September 30, 2016, segregated by class, were as follows: Unpaid Recorded Recorded Total Related Average Real Estate: Land Development and Construction $ — $ — $ — $ — $ — $ — Farmland 163 — 163 163 28 14 1-4 Family Mortgages 2,587 — 2,587 2,587 354 2,764 Commercial Real Estate 5,771 — 5,771 5,771 466 7,383 Total Real Estate Loans 8,521 — 8,521 8,521 848 10,161 Business Loans: Commercial and Industrial Loans — — — — — — Farm Production and Other Farm Loans — — — — — — Total Business Loans — — — — — — Consumer Loans: Credit Cards — — — — — — Other Consumer Loans — — — — — — Total Consumer Loans — — — — — — Total Loans $ 8,521 $ — $ 8,521 $ 8,521 $ 848 $ 10,161 During the first quarter of 2016, management and the Board of Directors reviewed the impaired loan listing according to the Corporation’s policy of reviewing individual loans for impairment over $100,000. During this review, 97 loans under that threshold in the amount of $2,731,121 and 6 loans in the amount of $1,651,023 that were over the threshold but were determined to not be impaired at March 31, 2016, were removed from the impaired loan listing. Management believes this more accurately reflects the amount of impaired loans evaluated for impairment as part of the computation of the allowance for loan losses. Impaired loans (in thousands) as of December 31, 2015, segregated by class, were as follows: Unpaid Recorded Recorded Total Related Average Real Estate: Land Development and Construction $ 75 $ — $ 75 $ 75 $ 75 $ 85 Farmland 679 69 610 679 54 739 1-4 Family Mortgages 3,103 1,754 1,349 3,103 183 2,829 Commercial Real Estate 11,662 1,409 10,253 11,662 2,685 10,552 Total Real Estate Loans 15,519 3,232 12,287 15,519 2,997 14,205 Business Loans: Commercial and Industrial Loans 28 28 — 28 — 49 Farm Production and Other Farm Loans — — — — — — Total Business Loans 28 28 — 28 — 49 Consumer Loans: Credit Cards — — — — — — Other Consumer Loans 36 36 — 36 — 78 Total Consumer Loans 36 36 — 36 — 78 Total Loans $ 15,583 $ 3,296 $ 12,287 $ 15,583 $ 2,997 $ 14,332 The following table presents troubled debt restructurings (in thousands, except for number of loans), segregated by class: September 30, 2016 Number of Pre-Modification Post-Modification Commercial real estate 3 $ 4,871 $ 3,467 Total 3 $ 4,871 $ 3,467 December 31, 2015 Number of Pre-Modification Post-Modification Commercial real estate 3 $ 4,871 $ 3,858 Total 3 $ 4,871 $ 3,858 Changes in the Corporation’s troubled debt restructurings (in thousands, except for number of loans) are set forth in the table below: Number Recorded Totals at January 1, 2016 3 $ 3,858 Reductions due to: Principal paydowns (391 ) Total at September 30, 2016 3 $ 3,467 The allocated allowance for loan losses attributable to restructured loans was $174,274 at September 30, 2016 and December 31, 2015. The Corporation had no remaining availability under commitments to lend additional funds on these troubled debt restructurings as of September 30, 2016. The Corporation utilizes a risk grading matrix to assign a risk grade to each of its loans when originated and is updated as factors related to the strength of the loan changes. Loans are graded on a scale of 1 to 9. A description of the general characteristics of the 9 risk grades follows. Grade 1. MINIMAL RISK - These loans are without loss exposure to the Corporation. This classification is reserved for only the best, well secured loans to borrowers with significant capital strength, low leverage, stable earnings and growth and other readily available financing alternatives. This type of loan would also include loans secured by a program of the government. Grade 2. MODEST RISK - These loans include borrowers with solid credit quality and moderate risk of loss. These loans may be fully secured by certificates of deposit with another reputable financial institution, or secured by readily marketable securities with acceptable margins. Grade 3. AVERAGE RISK - This is the rating assigned to the majority of the loans held by the Corporation. This includes loans with average loss exposure and average overall quality. These loans should liquidate through possessing adequate collateral and adequate earnings of the borrower. In addition, these loans are properly documented and are in accordance with all aspects of the current loan policy. Grade 4. ACCEPTABLE RISK - Borrower generates sufficient cash flow to fund debt service but most working asset and capital expansion needs are provided from external sources. Profitability and key balance sheet ratios are usually close to peers but one or more may be higher than peers. Grade 5. MANAGEMENT ATTENTION - Borrower has significant weaknesses resulting from performance trends or management concerns. The financial condition of the borrower has taken a negative turn and may be temporarily strained. Cash flow is weak but cash reserves remain adequate to meet debt service. Management weakness is evident. Grade 6. OTHER LOANS ESPECIALLY MENTIONED (“OLEM”) - Loans in this category are fundamentally sound but possess some weaknesses. OLEM loans have potential weaknesses which may, if not checked or corrected, weaken the asset or inadequately protect the bank’s credit position at some future date. These loans have an identifiable weakness in credit, collateral, or repayment ability but there is no expectation of loss. Grade 7. SUBSTANDARD ASSETS - Assets classified as substandard are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Assets classified as substandard must have a well-defined weakness based upon objective evidence. Assets classified as substandard are characterized by the distinct possibility that the insured institution will sustain some loss if the deficiencies are not corrected. The possibility that liquidation would not be timely requires a substandard classification even if there is little likelihood of total loss. Grade 8. DOUBTFUL - A loan classified as doubtful has all the weaknesses of a substandard classification and the added characteristic that the weakness makes collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable or improbable. The possibility of loss is extremely high, but because of certain important and reasonable specific pending factors which may work to the advantage and strengthening of the asset, its classification as an estimated loss is deferred until its more exact status may be determined. A doubtful classification could reflect the fact that the primary source of repayment is gone and serious doubt exists as to the quality of a secondary source of repayment. Grade 9. LOSS - Loans classified as loss are considered uncollectible and of such little value that their continuance as bankable assets is not warranted. This classification does not mean that the asset has absolutely no recovery or salvage value, but rather it is not practical or desirable to defer writing off this basically worthless asset even though partial recovery may occur in the future. Also included in this classification is the defined loss portion of loans rated substandard assets and doubtful assets. These internally assigned grades are updated on a continual basis throughout the course of the year and represent management’s most updated judgment regarding grades at September 30, 2016. The following table details the amount of gross loans (in thousands), segregated by loan grade and class, as of September 30, 2016: Satisfactory Special Substandard Doubtful Loss Total Real Estate: Land Development and Construction $ 22,402 $ 190 $ 754 $ — $ — $ 23,346 Farmland 17,732 925 1,245 — — 19,902 1-4 Family Mortgages 86,404 2,964 10,933 — — 100,301 Commercial Real Estate 180,676 2,619 8,661 — — 191,956 Total Real Estate Loans 307,214 6,698 21,593 — — 335,505 Business Loans: Commercial and Industrial Loans 53,260 767 181 — — 54,208 Farm Production and Other Farm Loans 887 — — — — 887 Total Business Loans 54,147 767 181 — — 55,095 Consumer Loans: Credit Cards 1,001 — 2 — — 1,003 Other Consumer Loans 18,859 106 137 — — 19,102 Total Consumer Loans 19,860 106 139 — — 20,105 Total Loans $ 381,221 $ 7,571 $ 21,913 $ — $ — $ 410,705 The following table details the amount of gross loans (in thousands) segregated by loan grade and class, as of December 31, 2015: Satisfactory Special Substandard Doubtful Loss Total Real Estate: Land Development and Construction $ 31,889 $ 202 $ 1,042 $ — $ — $ 33,133 Farmland 21,084 989 1,220 — — 23,293 1-4 Family Mortgages 88,425 4,874 10,747 — — 104,046 Commercial Real Estate 155,898 12,286 12,507 — — 180,691 Total Real Estate Loans 297,296 18,351 25,516 — — 341,163 Business Loans: Commercial and Industrial Loans 60,918 377 130 — — 61,425 Farm Production and Other Farm Loans 1,055 — — — — 1,055 Total Business Loans 61,973 377 130 — — 62,480 Consumer Loans: Credit Cards 1,052 — 9 — — 1,061 Other Consumer Loans 24,666 111 777 7 3 25,564 Total Consumer Loans 25,718 111 786 7 3 26,625 Total Loans $ 384,987 $ 18,839 $ 26,432 $ 7 $ 3 $ 430,268 The allowance for loan losses is a reserve established through a provision for loan losses charged to expense, which represents management’s best estimate of probable losses within the existing portfolio of loans. The allowance, in the judgment of management, is necessary to reserve for estimated loan losses and risks inherent in the loan portfolio. The allowance on the majority of the loan portfolio is calculated using a historical chargeoff percentage applied to the current loan balances by loan segment. This historical period is the average of the previous twenty quarters with the most current quarters weighted more heavily to show the effect of the most recent chargeoff activity. This percentage is also adjusted for economic factors such as local unemployment and general business conditions, both local and nationwide. The group of loans that are considered to be impaired are individually evaluated for possible loss and a specific reserve is established to cover any loss contingency. Loans that are determined to be a loss with no benefit of remaining in the portfolio are charged off to the allowance. These specific reserves are reviewed periodically for continued impairment and adequacy of the specific reserve and are adjusted when necessary. The following table details activity in the allowance for loan losses by portfolio segment for the nine months ended September 30, 2016: September 30, 2016 Real Business Consumer Total Beginning Balance, January 1, 2016 $ 5,238,895 $ 643,248 $ 591,560 $ 6,473,703 Provision for possible loan losses 214,491 (93,733 ) (23,290 ) 97,468 Chargeoffs 2,508,459 5,428 49,317 2,563,204 Recoveries 32,424 14,381 58,670 105,475 Net chargeoffs 2,476,035 (8,953 ) (9,353 ) 2,457,729 Ending Balance $ 2,977,351 $ 558,468 $ 577,623 $ 4,113,442 Period end allowance allocated to: Loans individually evaluated for impairment $ 848,091 $ — $ — $ 848,091 Loans collectively evaluated for impairment 2,129,260 558,468 577,623 3,265,351 Ending Balance, September 30, 2016 $ 2,977,351 $ 558,468 $ 577,623 $ 4,113,442 The following table details activity in the allowance for loan losses by portfolio segment for the nine months ended September 30, 2015: September 30, 2015 Real Business Consumer Total Beginning Balance, January 1, 2015 $ 5,202,151 $ 873,815 $ 466,360 $ 6,542,326 Provision for possible loan losses 338,668 (81,216 ) 150,246 407,698 Chargeoffs 152,503 — 111,897 264,400 Recoveries 67,843 11,545 63,770 143,158 Net chargeoffs 84,660 (11,545 ) 48,127 121,242 Ending Balance $ 5,456,159 $ 804,144 $ 568,479 $ 6,828,782 Period end allowance allocated to: Loans individually evaluated for impairment $ 2,767,962 $ 25,000 $ — $ 2,792,962 Loans collectively evaluated for impairment 2,688,197 779,144 568,479 4,035,820 Ending Balance, September 30, 2015 $ 5,456,159 $ 804,144 $ 568,479 $ 6,828,782 The Corporation’s recorded investment in loans as of September 30, 2016 and December 31, 2015 related to each balance in the allowance for possible loan losses by portfolio segment and disaggregated on the basis of the Corporation’s impairment methodology was as follows (in thousands): September 30, 2016 Real Business Consumer Total Loans individually evaluated for specific impairment $ 8,521 $ — $ — $ 8,521 Loans collectively evaluated for general impairment 326,984 55,095 20,105 402,184 $ 335,505 $ 55,095 $ 20,105 $ 410,705 December 31, 2015 Real Business Consumer Total Loans individually evaluated for specific impairment $ 15,519 $ 28 $ 36 $ 15,583 Loans collectively evaluated for general impairment 325,644 62,452 26,589 414,685 $ 341,163 $ 62,480 $ 26,625 $ 430,268

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2016
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Note 8. Fair Value of Financial Instruments The fair value topic of the ASC establishes a framework for measuring fair value and requires enhanced disclosures about fair value measurements. This topic clarifies that fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. This topic also requires disclosure about how fair value was determined for assets and liabilities and establishes a hierarchy for which these assets and liabilities must be grouped, based on significant levels of inputs as follows: Level 1 Quoted prices (unadjusted) in active markets for identical assets or liabilities; Level 2 Inputs other than quoted prices in active markets for identical assets and liabilities included in Level 1 that are observable for the asset or liability, either directly or indirectly, such as quoted prices for similar assets or liabilities in active markets, or quoted prices for identical or similar assets or liabilities in markets that are not active; or Level 3 Unobservable inputs for an asset or liability, such as discounted cash flow models or valuations. The determination of where assets and liabilities fall within this hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The following table presents assets and liabilities that were measured at fair value on a recurring basis as of September 30, 2016: Fair Value Measurements Using: Quoted Prices Significant Significant (Level 1) (Level 2) (Level 3) Totals Securities available for sale Obligations of U.S. Government Agencies $ — $ 169,786,721 $ — $ 169,786,721 Mortgage-backed securities — 129,852,046 — 129,852,046 State, county and municipal obligations — 154,071,591 — 154,071,591 Other investments — — 2,940,959 2,940,959 Total $ — $ 453,710,358 $ 2,940,959 $ 456,651,317 The following table presents assets and liabilities that were measured at fair value on a recurring basis as of December 31, 2015: Fair Value Measurements Using: Quoted Prices Significant Significant (Level 1) (Level 2) (Level 3) Totals Securities available for sale Obligations of U.S. Government Agencies $ — $ 82,250,366 $ — $ 82,250,366 Mortgage-backed securities — 91,721,965 — 91,721,965 State, county and municipal obligations — 90,376,363 — 90,376,363 Other investments — — 2,915,709 2,915,709 Total $ — $ 264,348,694 $ 2,915,709 $ 267,264,403 The following table reports the activity for 2016 in assets measured at fair value on a recurring basis using significant unobservable inputs: Fair Value Measurements Using: Significant Unobservable Inputs (Level 3) Structured Financial Product Balance at January 1, 2016 $ 2,915,709 Principal payments received (46,326 ) Unrealized gains included in other comprehensive income 71,576 Balance at September 30, 2016 $ 2,940,959 The Corporation recorded no gains or losses in earnings for the period ended September 30, 2016 or December 31, 2015 that were attributable to the change in unrealized gains or losses relating to assets still held at the reporting date. For assets measured at fair value on a nonrecurring basis during 2016 that were still held on the Corporation’s balance sheet at September 30, 2016, the following table provides the hierarchy level and the fair value of the related assets: Fair Value Measurements Using: Quoted Prices Significant Significant (Level 1) (Level 2) (Level 3) Totals Impaired loans $ — $ — $ 7,672,821 $ 7,672,821 Other real estate owned — — 1,964,750 1,964,750 Total $ — $ — $ 9,637,571 $ 9,637,571 For assets measured at fair value on a nonrecurring basis during 2015 that were still held on the Corporation’s balance sheet at December 31, 2015, the following table provides the hierarchy level and the fair value of the related assets: Fair Value Measurements Using: Quoted Prices Significant Significant (Level 1) (Level 2) (Level 3) Totals Impaired loans $ — $ — $ 8,926,364 $ 8,926,364 Other real estate owned — — 538,262 538,262 Total $ — $ — $ 9,464,626 $ 9,464,626 Impaired loans with a carrying value of $8,520,912 and $12,286,822 had an allocated allowance for loan losses of $848,091 and $2,996,708 at September 30, 2016 and December 31, 2015, respectively. The allocated allowance is based on the carrying value of the impaired loan and the fair value of the underlying collateral less estimated costs to sell. Real estate acquired through foreclosure or deed in lien, sometimes referred to as other real estate owned (“OREO”) acquired during the nine-month period ended September 30, 2016, and recorded at fair value, less costs to sell, was $2,149,625, of which $65,257 was acquired and sold during this period. There were no writedowns during the period on properties owned. OREO acquired during 2015 and recorded at fair value, less costs to sell, was $869,564. There were no additional writedowns during 2015 on OREO acquired in previous years. The financial instruments topic of the ASC requires disclosure of financial instruments’ fair values, as well as the methodology and significant assumptions used in estimating fair values. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. In that regard, the derived fair value estimates cannot be substantiated by comparison to independent markets and, in many cases, could not be realized in immediate settlement of the instrument. The financial instruments topic of the ASC excludes certain financial instruments from its disclosure requirements. Accordingly, the aggregate fair value amounts presented do not represent the underlying value of the Corporation and may not be indicative of amounts that might ultimately be realized upon disposition or settlement of those assets and liabilities. The following represents the carrying value and estimated fair value of the Corporation’s financial instruments at September 30, 2016: Fair Value Measurements Using: September 30, 2016 Carrying Quoted Prices Significant Significant Total (Level 1) (Level 2) (Level 3) Financial assets Cash and due from banks $ 22,727,843 $ 22,727,843 $ — $ — $ 22,727,843 Interest bearing deposits with banks 79,169,722 79,169,722 — — 79,169,722 Securities held-to-maturity — — — Securities available-for-sale 456,651,317 — 453,710,358 2,940,959 456,651,317 Net loans 405,905,192 — — 407,167,494 407,167,494 Financial liabilities Deposits $ 780,463,454 $ 580,506,344 $ — $ 200,105,330 $ 780,611,674 Federal Home Loan Bank advances 20,000,000 — — 20,420,353 20,420,353 Securities Sold under Agreement to Repurchase 118,054,055 118,054,055 — — 118,054,055 The following represents the carrying value and estimated fair value of the Corporation’s financial instruments at December 31, 2015: Fair Value Measurements Using: December 31, 2015 Carrying Quoted Prices Significant Significant Total (Level 1) (Level 2) (Level 3) Financial assets Cash and due from banks $ 14,947,690 $ 14,947,690 $ — $ — $ 14,947,690 Interest bearing deposits with banks 42,267,777 42,267,777 — — 42,267,777 Securities available-for-sale 267,264,403 — 264,348,694 2,915,709 267,264,403 Securities held-to-maturity 161,043,404 — 169,045,835 — 169,045,835 Net loans 423,108,391 — — 425,096,569 425,096,569 Financial liabilities Deposits $ 753,404,788 $ 542,640,313 $ — $ 210,890,430 $ 753,530,743 Federal Home Loan Bank advances 20,000,000 — — 20,534,935 20,534,935 Securities Sold under Agreement to Repurchase 104,298,182 104,298,182 — — 104,298,182 The fair value estimates, methods and assumptions used by the Corporation in estimating its fair value disclosures for financial statements were as follows: Cash and Due from Banks and Interest Bearing Deposits with Banks The carrying amounts reported in the balance sheet for these instruments approximate fair value because of their immediate and shorter-term maturities, which are considered to be three months or less when purchased. Securities Held-to-Maturity Securities held-to-maturity consist of debt securities such as obligations of states and other political subdivisions. Where quoted market prices in active markets are available, securities are classified within Level 1 of the fair value hierarchy. If quoted prices from active markets are not available, fair values are based on quoted market prices for similar instruments traded in active markets, quoted market prices for identical or similar instruments traded in markets that are not active, or model-based valuation techniques where all significant assumptions are observable in the market. Such instruments are classified within Level 2 of the fair value hierarchy. When assumptions used in model-based valuation techniques are not observable in the market, the assumptions used by management reflect estimates of assumptions used by other market participants in determining fair value. When there is limited transparency around the inputs to the valuation, the instruments are classified within Level 3 of the fair value hierarchy. Securities Available-for-Sale Fair values for investment securities are based on quoted market prices, when available (Level 1). If quoted market prices are not available, fair values are based on quoted market prices of comparable instruments (Level 2). When neither quoted prices nor comparable instruments are available, unobservable inputs are needed to form an expected future cash flow analysis to establish fair values (Level 3). The Corporation owns certain beneficial interests in one collateralized debt obligation secured by community bank trust preferred securities. These interests do not trade in a liquid market, and therefore, market quotes are not a reliable indicator of their ultimate realizability. The Corporation utilizes a discounted cash flow model using inputs of (1) market yields of trust-preferred securities as the discount rate and (2) expected cash flows which are estimated using assumptions related to defaults, deferrals and prepayments to determine the fair values of these beneficial interests. Many of the factors that adjust the timing and extent of cash flows are based on judgment and not directly observable in the markets. Therefore, these fair values are classified as Level 3 valuations for accounting and disclosure purposes. Since observable transactions in these securities are extremely rare, the Corporation uses assumptions that a market participant would use in valuing these instruments. These assumptions primarily include cash flow estimates and market discount rates. The cash flow estimates are sensitive to the assumptions related to the ability of the issuers to pay the underlying trust preferred securities according to their terms. The market discount rates depend on transactions, which are rare given the lack of interest of investors in these types of beneficial interests. Net Loans For variable-rate loans that reprice frequently and with no significant change in credit risk, fair values are based on carrying values. The fair values for other loans, including impaired loans, (i.e., commercial real estate and rental property mortgage loans, commercial and industrial loans, financial institution loans, and agricultural loans) are estimated using discounted cash flow analyses, using interest rates currently being offered for loans with similar terms to borrowers of similar credit quality. Deposits The fair values for demand deposits, NOW and money market accounts and savings accounts are, by definition, equal to the amount payable on demand at the reporting date (i.e., their carrying amounts). The carrying amounts for variable-rate, fixed-term money market accounts and time deposits approximate their fair values at the reporting date. Fair values for fixed-rate time deposits are estimated using a discounted cash flow calculation that applies interest rates currently being offered on certificates to a schedule of aggregated expected monthly maturities on time deposits. Federal Home Loan Bank (“FHLB”) Borrowings The fair value of FHLB advances is based on a discounted cash flow analysis. Securities Sold Under Agreement to Repurchase Due to the short term nature of these instruments, which is generally three months or less, the carrying amount is equal to the fair value. Off-Balance Sheet Instruments The fair value of commitments to extend credit and letters of credit are estimated using fees currently charged to enter into similar agreements. The fees associated with these financial instruments are not material.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2016
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	Note 9. Recent Accounting Pronouncements In March 2016, the FASB issued ASU No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting On June 16, 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments

Recent Accounting Pronounceme16

Recent Accounting Pronouncements (Policies)	9 Months Ended
	Sep. 30, 2016
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	In March 2016, the FASB issued ASU No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting On June 16, 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments

Net Income per Share (Tables)

Net Income per Share (Tables)	9 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
Earnings Per Share	Net income per share was computed as follows: For the Three Months For the Nine Months Ended September 30, Ended September 30, 2016 2015 2016 2015 Basic weighted average shares outstanding 4,869,079 4,877,614 4,864,924 4,872,092 Dilutive effect of granted options 8,614 1,170 8,316 904 Diluted weighted average shares outstanding 4,877,693 4,878,784 4,873,240 4,872,996 Net income $ 1,752,290 $ 1,836,461 $ 5,057,463 $ 5,258,594 Net income per share-basic $ 0.36 $ 0.38 $ 1.04 $ 1.08 Net income per share-diluted $ 0.36 $ 0.38 $ 1.04 $ 1.08

Equity Compensation Plans (Tabl

Equity Compensation Plans (Tables)	9 Months Ended
	Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of Stock Option Activity	The following table is a summary of the stock option activity for the nine months ended September 30, 2016. Directors’ Plan Employees’ Plan 2013 Plan Weighted Weighted Weighted Number Average Number Average Number Average of Exercise of Exercise of Exercise Shares Price Shares Price Shares Price Outstanding at December 31, 2015 87,000 $ 21.35 23,000 $ 23.46 — $ — Granted — — — — — — Exercised — — — — — — Expired (9,000 ) 23.70 (23,000 ) 23.46 — — Outstanding at September 30, 2016 78,000 $ 21.08 — $ — — $ —

Securities (Tables)

Securities (Tables)	9 Months Ended
	Sep. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Amortized Cost and Estimated Fair Value of Securities Available-for-Sale	The amortized cost and estimated fair value of securities available-for-sale and the corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive income were as follows: Gross Gross September 30, 2016 Amortized Unrealized Unrealized Estimated Cost Gains Losses Fair Value Securities available-for-sale Obligations of U.S. Government agencies $ 169,085,427 $ 840,946 $ 139,652 $ 169,786,721 Mortgage backed securities 129,312,239 976,404 436,597 129,852,046 State, County, Municipals 152,433,503 3,076,906 1,438,818 154,071,591 Other investments 2,884,808 56,151 — 2,940,959 Total $ 453,715,977 $ 4,950,407 $ 2,015,067 $ 456,651,317 Gross Gross December 31, 2015 Amortized Unrealized Unrealized Estimated Cost Gains Losses Fair Value Securities available-for-sale Obligations of U.S. Government agencies $ 83,826,411 $ 1,100 $ 1,577,145 $ 82,250,366 Mortgage backed securities 92,602,875 467,693 1,348,603 91,721,965 State, County, Municipals 87,948,336 2,609,469 181,442 90,376,363 Other investments 2,931,134 — 15,425 2,915,709 Total $ 267,308,756 $ 3,078,262 $ 3,122,615 $ 267,264,403
Amortized Cost and Estimated Fair Value of Securities Held-to-Maturity	At December 31, 2015, the amortized cost and estimated fair value of securities held-to-maturity and the corresponding amounts of gross unrecognized gains and losses were as follows: Gross Gross December 31, 2015 Amortized Unrealized Unrealized Estimated Cost Gains Losses Fair Value Securities held-to-maturity Obligations of U.S. Government agencies $ 161,043,404 $ 8,002,431 $ — $ 169,045,835 Total $ 161,043,404 $ 8,002,431 $ — $ 169,045,835
Amortized Cost and Estimated Fair Value of Securities by Contractual Maturity	The amortized cost and estimated fair value of securities by contractual maturity at September 30, 2016 and December 31, 2015 are shown below. Actual maturities may differ from contractual maturities because issuers have the right to call or prepay certain obligations. September 30, 2016 December 31, 2015 Amortized Estimated Amortized Estimated Cost Fair Value Cost Fair Value Available-for-sale Due in one year or less $ 7,477,707 $ 7,546,148 $ 3,008,448 $ 3,028,887 Due after one year through five years 19,439,088 20,255,518 13,587,885 13,985,525 Due after five years through ten years 107,939,900 108,841,086 80,749,532 80,346,720 Due after ten years 318,859,282 320,008,565 169,962,891 169,903,271 Total $ 453,715,977 $ 456,651,317 $ 267,308,756 $ 267,264,403 Held-to-maturity Due in one year or less $ — $ — $ — $ — Due after five years through ten years — — 37,052,187 38,528,059 Due after ten years — — 123,991,217 130,517,776 Total $ — $ — $ 161,043,404 $ 169,045,835
Summary of Unrealized Loss Information for Available-for-sale Securities	A summary of unrealized loss information for securities available-for-sale, categorized by security type follows (in thousands): September 30, 2016 Less than 12 months 12 months or more Total Description of Securities Fair Unrealized Fair Unrealized Fair Unrealized Obligations of U.S. government agencies $ 50,356 $ 80 $ 4,905 $ 60 $ 55,261 $ 140 Mortgage backed securities 30,835 291 27,143 145 57,978 436 State, County, Municipal 60,869 1,412 3,260 27 64,129 1,439 Total $ 142,060 $ 1,783 $ 35,308 $ 232 $ 177,368 $ 2,015 Less than 12 months 12 months or more Total December 31, 2015 Fair Unrealized Fair Unrealized Fair Unrealized Description of Securities Obligations of U.S. government agencies $ 50,915 $ 716 $ 26,335 $ 861 $ 77,250 $ 1,577 Mortgage backed securities 83,001 1,349 — — 83,001 1,349 State, County, Municipal 2,393 10 12,623 172 15,016 182 Other investments — — 2,916 15 2,916 15 Total $ 136,309 $ 2,075 $ 41,874 $ 1,048 $ 178,183 $ 3,123

Loans (Tables)

Loans (Tables)	9 Months Ended
	Sep. 30, 2016
Receivables [Abstract]
Composition of Net Loans	The composition of net loans (in thousands) at September 30, 2016 and December 31, 2015 was as follows: September 30, 2016 December 31, 2015 Real Estate: Land Development and Construction $ 23,346 $ 33,133 Farmland 19,902 23,293 1-4 Family Mortgages 100,301 104,046 Commercial Real Estate 191,956 180,691 Total Real Estate Loans 335,505 341,163 Business Loans: Commercial and Industrial Loans 54,208 61,425 Farm Production and Other Farm Loans 887 1,055 Total Business Loans 55,095 62,480 Consumer Loans: Credit Cards 1,003 1,061 Other Consumer Loans 19,102 25,564 Total Consumer Loans 20,105 26,625 Total Gross Loans 410,705 430,268 Unearned Income (687 ) (686 ) Allowance for Loan Losses (4,113 ) (6,474 ) Loans, net $ 405,905 $ 423,108
Period-End Non-Accrual Loans, Segregated by Class	Period-end, non-accrual loans (in thousands), segregated by class, were as follows: September 30, 2016 December 31, 2015 Real Estate: Land Development and Construction $ 139 $ 75 Farmland 537 158 1-4 Family Mortgages 2,145 2,464 Commercial Real Estate 6,827 11,662 Total Real Estate Loans 9,648 14,359 Business Loans: Commercial and Industrial Loans 55 28 Total Business Loans 55 28 Consumer Loans: Other Consumer Loans 31 36 Total Consumer Loans 31 36 Total Nonaccrual Loans $ 9,734 $ 14,423
Aging Analysis of Past Due Loans, Segregated by Class	An aging analysis of past due loans (in thousands), segregated by class, as of September 30, 2016, was as follows: Loans 30-89 Days Loans Total Past Current Total Accruing Real Estate: Land Development and Construction $ 199 $ 78 $ 277 $ 23,069 $ 23,346 $ — Farmland 233 407 640 19,262 19,902 — 1-4 Family Mortgages 6,326 1,720 8,046 92,255 100,301 1,067 Commercial Real Estate 1,022 1,923 2,945 189,011 191,956 — Total Real Estate Loans 7,780 4,128 11,908 323,597 335,505 1,067 Business Loans: Commercial and Industrial Loans 292 77 369 53,839 54,208 22 Farm Production and Other Farm Loans 11 — 11 876 887 — Total Business Loans 303 77 380 54,715 55,095 22 Consumer Loans: Credit Cards 9 2 11 992 1,003 2 Other Consumer Loans 751 — 751 18,351 19,102 — Total Consumer Loans 760 2 762 19,343 20,105 2 Total Loans $ 8,843 $ 4,207 $ 13,050 $ 397,655 $ 410,705 $ 1,091 An aging analysis of past due loans (in thousands), segregated by class, as of December 31, 2015 was as follows: Loans 30-89 Days Loans Total Past Current Total Accruing Real Estate: Land Development and Construction $ 1,126 $ 21 $ 1,147 $ 31,986 $ 33,133 $ 21 Farmland 947 4 951 22,342 23,293 4 1-4 Family Mortgages 5,131 573 5,704 98,342 104,046 — Commercial Real Estate 4,015 6,748 10,763 169,928 180,691 — Total Real Estate Loans 11,219 7,346 18,565 322,598 341,163 25 Business Loans: Commercial and Industrial Loans 245 12 257 61,168 61,425 12 Farm Production and Other Farm Loans 12 — 12 1,043 1,055 — Total Business Loans 257 12 269 62,211 62,480 12 Consumer Loans: Credit Cards 12 9 21 1,040 1,061 9 Other Consumer Loans 1,017 30 1,047 24,517 25,564 30 Total Consumer Loans 1,029 39 1,068 25,557 26,625 39 Total Loans $ 12,505 $ 7,397 $ 19,902 $ 410,366 $ 430,268 $ 76
Impaired Loans, Segregated by Class	Impaired loans (in thousands) as of September 30, 2016, segregated by class, were as follows: Unpaid Recorded Recorded Total Related Average Real Estate: Land Development and Construction $ — $ — $ — $ — $ — $ — Farmland 163 — 163 163 28 14 1-4 Family Mortgages 2,587 — 2,587 2,587 354 2,764 Commercial Real Estate 5,771 — 5,771 5,771 466 7,383 Total Real Estate Loans 8,521 — 8,521 8,521 848 10,161 Business Loans: Commercial and Industrial Loans — — — — — — Farm Production and Other Farm Loans — — — — — — Total Business Loans — — — — — — Consumer Loans: Credit Cards — — — — — — Other Consumer Loans — — — — — — Total Consumer Loans — — — — — — Total Loans $ 8,521 $ — $ 8,521 $ 8,521 $ 848 $ 10,161 Unpaid Recorded Recorded Total Related Average Real Estate: Land Development and Construction $ 75 $ — $ 75 $ 75 $ 75 $ 85 Farmland 679 69 610 679 54 739 1-4 Family Mortgages 3,103 1,754 1,349 3,103 183 2,829 Commercial Real Estate 11,662 1,409 10,253 11,662 2,685 10,552 Total Real Estate Loans 15,519 3,232 12,287 15,519 2,997 14,205 Business Loans: Commercial and Industrial Loans 28 28 — 28 — 49 Farm Production and Other Farm Loans — — — — — — Total Business Loans 28 28 — 28 — 49 Consumer Loans: Credit Cards — — — — — — Other Consumer Loans 36 36 — 36 — 78 Total Consumer Loans 36 36 — 36 — 78 Total Loans $ 15,583 $ 3,296 $ 12,287 $ 15,583 $ 2,997 $ 14,332
Troubled Debt Restructurings Segregated by Class	The following table presents troubled debt restructurings (in thousands, except for number of loans), segregated by class: September 30, 2016 Number of Pre-Modification Post-Modification Commercial real estate 3 $ 4,871 $ 3,467 Total 3 $ 4,871 $ 3,467 December 31, 2015 Number of Pre-Modification Post-Modification Commercial real estate 3 $ 4,871 $ 3,858 Total 3 $ 4,871 $ 3,858
Changes in Troubled Debt Restructurings	Changes in the Corporation’s troubled debt restructurings (in thousands, except for number of loans) are set forth in the table below: Number Recorded Totals at January 1, 2016 3 $ 3,858 Reductions due to: Principal paydowns (391 ) Total at September 30, 2016 3 $ 3,467
Detailed Amount of Gross Loans Segregated by Loan Grade and Class	The following table details the amount of gross loans (in thousands), segregated by loan grade and class, as of September 30, 2016: Satisfactory Special Substandard Doubtful Loss Total Real Estate: Land Development and Construction $ 22,402 $ 190 $ 754 $ — $ — $ 23,346 Farmland 17,732 925 1,245 — — 19,902 1-4 Family Mortgages 86,404 2,964 10,933 — — 100,301 Commercial Real Estate 180,676 2,619 8,661 — — 191,956 Total Real Estate Loans 307,214 6,698 21,593 — — 335,505 Business Loans: Commercial and Industrial Loans 53,260 767 181 — — 54,208 Farm Production and Other Farm Loans 887 — — — — 887 Total Business Loans 54,147 767 181 — — 55,095 Consumer Loans: Credit Cards 1,001 — 2 — — 1,003 Other Consumer Loans 18,859 106 137 — — 19,102 Total Consumer Loans 19,860 106 139 — — 20,105 Total Loans $ 381,221 $ 7,571 $ 21,913 $ — $ — $ 410,705 The following table details the amount of gross loans (in thousands) segregated by loan grade and class, as of December 31, 2015: Satisfactory Special Substandard Doubtful Loss Total Real Estate: Land Development and Construction $ 31,889 $ 202 $ 1,042 $ — $ — $ 33,133 Farmland 21,084 989 1,220 — — 23,293 1-4 Family Mortgages 88,425 4,874 10,747 — — 104,046 Commercial Real Estate 155,898 12,286 12,507 — — 180,691 Total Real Estate Loans 297,296 18,351 25,516 — — 341,163 Business Loans: Commercial and Industrial Loans 60,918 377 130 — — 61,425 Farm Production and Other Farm Loans 1,055 — — — — 1,055 Total Business Loans 61,973 377 130 — — 62,480 Consumer Loans: Credit Cards 1,052 — 9 — — 1,061 Other Consumer Loans 24,666 111 777 7 3 25,564 Total Consumer Loans 25,718 111 786 7 3 26,625 Total Loans $ 384,987 $ 18,839 $ 26,432 $ 7 $ 3 $ 430,268
Detailed Activity in Allowance for Possible Loan Losses by Portfolio Segment	The following table details activity in the allowance for loan losses by portfolio segment for the nine months ended September 30, 2016: September 30, 2016 Real Business Consumer Total Beginning Balance, January 1, 2016 $ 5,238,895 $ 643,248 $ 591,560 $ 6,473,703 Provision for possible loan losses 214,491 (93,733 ) (23,290 ) 97,468 Chargeoffs 2,508,459 5,428 49,317 2,563,204 Recoveries 32,424 14,381 58,670 105,475 Net chargeoffs 2,476,035 (8,953 ) (9,353 ) 2,457,729 Ending Balance $ 2,977,351 $ 558,468 $ 577,623 $ 4,113,442 Period end allowance allocated to: Loans individually evaluated for impairment $ 848,091 $ — $ — $ 848,091 Loans collectively evaluated for impairment 2,129,260 558,468 577,623 3,265,351 Ending Balance, September 30, 2016 $ 2,977,351 $ 558,468 $ 577,623 $ 4,113,442 The following table details activity in the allowance for loan losses by portfolio segment for the nine months ended September 30, 2015: September 30, 2015 Real Business Consumer Total Beginning Balance, January 1, 2015 $ 5,202,151 $ 873,815 $ 466,360 $ 6,542,326 Provision for possible loan losses 338,668 (81,216 ) 150,246 407,698 Chargeoffs 152,503 — 111,897 264,400 Recoveries 67,843 11,545 63,770 143,158 Net chargeoffs 84,660 (11,545 ) 48,127 121,242 Ending Balance $ 5,456,159 $ 804,144 $ 568,479 $ 6,828,782 Period end allowance allocated to: Loans individually evaluated for impairment $ 2,767,962 $ 25,000 $ — $ 2,792,962 Loans collectively evaluated for impairment 2,688,197 779,144 568,479 4,035,820 Ending Balance, September 30, 2015 $ 5,456,159 $ 804,144 $ 568,479 $ 6,828,782
Recorded Investment in Loans Related to Balance in Allowance for Possible Loan Losses by Portfolio Segment	The Corporation’s recorded investment in loans as of September 30, 2016 and December 31, 2015 related to each balance in the allowance for possible loan losses by portfolio segment and disaggregated on the basis of the Corporation’s impairment methodology was as follows (in thousands): September 30, 2016 Real Business Consumer Total Loans individually evaluated for specific impairment $ 8,521 $ — $ — $ 8,521 Loans collectively evaluated for general impairment 326,984 55,095 20,105 402,184 $ 335,505 $ 55,095 $ 20,105 $ 410,705 December 31, 2015 Real Business Consumer Total Loans individually evaluated for specific impairment $ 15,519 $ 28 $ 36 $ 15,583 Loans collectively evaluated for general impairment 325,644 62,452 26,589 414,685 $ 341,163 $ 62,480 $ 26,625 $ 430,268

Fair Value of Financial Instr21

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2016
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on Recurring Basis	The following table presents assets and liabilities that were measured at fair value on a recurring basis as of September 30, 2016: Fair Value Measurements Using: Quoted Prices Significant Significant (Level 1) (Level 2) (Level 3) Totals Securities available for sale Obligations of U.S. Government Agencies $ — $ 169,786,721 $ — $ 169,786,721 Mortgage-backed securities — 129,852,046 — 129,852,046 State, county and municipal obligations — 154,071,591 — 154,071,591 Other investments — — 2,940,959 2,940,959 Total $ — $ 453,710,358 $ 2,940,959 $ 456,651,317 The following table presents assets and liabilities that were measured at fair value on a recurring basis as of December 31, 2015: Fair Value Measurements Using: Quoted Prices Significant Significant (Level 1) (Level 2) (Level 3) Totals Securities available for sale Obligations of U.S. Government Agencies $ — $ 82,250,366 $ — $ 82,250,366 Mortgage-backed securities — 91,721,965 — 91,721,965 State, county and municipal obligations — 90,376,363 — 90,376,363 Other investments — — 2,915,709 2,915,709 Total $ — $ 264,348,694 $ 2,915,709 $ 267,264,403
Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs	The following table reports the activity for 2016 in assets measured at fair value on a recurring basis using significant unobservable inputs: Fair Value Measurements Using: Significant Unobservable Inputs (Level 3) Structured Financial Product Balance at January 1, 2016 $ 2,915,709 Principal payments received (46,326 ) Unrealized gains included in other comprehensive income 71,576 Balance at September 30, 2016 $ 2,940,959
Asset Measured at Fair Value on Nonrecurring Basis	For assets measured at fair value on a nonrecurring basis during 2016 that were still held on the Corporation’s balance sheet at September 30, 2016, the following table provides the hierarchy level and the fair value of the related assets: Fair Value Measurements Using: Quoted Prices Significant Significant (Level 1) (Level 2) (Level 3) Totals Impaired loans $ — $ — $ 7,672,821 $ 7,672,821 Other real estate owned — — 1,964,750 1,964,750 Total $ — $ — $ 9,637,571 $ 9,637,571 For assets measured at fair value on a nonrecurring basis during 2015 that were still held on the Corporation’s balance sheet at December 31, 2015, the following table provides the hierarchy level and the fair value of the related assets: Fair Value Measurements Using: Quoted Prices Significant Significant (Level 1) (Level 2) (Level 3) Totals Impaired loans $ — $ — $ 8,926,364 $ 8,926,364 Other real estate owned — — 538,262 538,262 Total $ — $ — $ 9,464,626 $ 9,464,626
Carrying Value and Estimated Fair Value of Financial Instruments	The following represents the carrying value and estimated fair value of the Corporation’s financial instruments at September 30, 2016: Fair Value Measurements Using: September 30, 2016 Carrying Quoted Prices Significant Significant Total (Level 1) (Level 2) (Level 3) Financial assets Cash and due from banks $ 22,727,843 $ 22,727,843 $ — $ — $ 22,727,843 Interest bearing deposits with banks 79,169,722 79,169,722 — — 79,169,722 Securities held-to-maturity — — — Securities available-for-sale 456,651,317 — 453,710,358 2,940,959 456,651,317 Net loans 405,905,192 — — 407,167,494 407,167,494 Financial liabilities Deposits $ 780,463,454 $ 580,506,344 $ — $ 200,105,330 $ 780,611,674 Federal Home Loan Bank advances 20,000,000 — — 20,420,353 20,420,353 Securities Sold under Agreement to Repurchase 118,054,055 118,054,055 — — 118,054,055 The following represents the carrying value and estimated fair value of the Corporation’s financial instruments at December 31, 2015: Fair Value Measurements Using: December 31, 2015 Carrying Quoted Prices Significant Significant Total (Level 1) (Level 2) (Level 3) Financial assets Cash and due from banks $ 14,947,690 $ 14,947,690 $ — $ — $ 14,947,690 Interest bearing deposits with banks 42,267,777 42,267,777 — — 42,267,777 Securities available-for-sale 267,264,403 — 264,348,694 2,915,709 267,264,403 Securities held-to-maturity 161,043,404 — 169,045,835 — 169,045,835 Net loans 423,108,391 — — 425,096,569 425,096,569 Financial liabilities Deposits $ 753,404,788 $ 542,640,313 $ — $ 210,890,430 $ 753,530,743 Federal Home Loan Bank advances 20,000,000 — — 20,534,935 20,534,935 Securities Sold under Agreement to Repurchase 104,298,182 104,298,182 — — 104,298,182

Commitments and Contingent Li22

Commitments and Contingent Liabilities - Additional Information (Detail) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Loan commitments	$ 39,951,717	$ 44,358,972
Letters of credit outstanding	$ 3,358,480	$ 2,860,480

Net Income per Share - Earnings

Net Income per Share - Earnings Per Share (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share [Abstract]
Basic weighted average shares outstanding	4,869,079	4,877,614	4,864,924	4,872,092
Dilutive effect of granted options	8,614	1,170	8,316	904
Diluted weighted average shares outstanding	4,877,693	4,878,784	4,873,240	4,872,996
Net income	$ 1,752,290	$ 1,836,461	$ 5,057,463	$ 5,258,594
Net income per share-basic	$ 0.36	$ 0.38	$ 1.04	$ 1.08
Net income per share-diluted	$ 0.36	$ 0.38	$ 1.04	$ 1.08

Equity Compensation Plans - Sum

Equity Compensation Plans - Summary of Stock Option Activity (Detail)	9 Months Ended
	Sep. 30, 2016$ / sharesshares
Weighted Average Exercise Price
Beginning Balance | $ / shares	$ 21.35
Granted | $ / shares	0
Exercised | $ / shares	0
Expired | $ / shares	23.70
Ending Balance | $ / shares	$ 21.08
Employee Stock Option Plan [Member]
Number of Shares
Beginning Balance | shares	23,000
Granted | shares	0
Exercised | shares	0
Expired | shares	(23,000)
Weighted Average Exercise Price
Beginning Balance | $ / shares	$ 23.46
Granted | $ / shares	0
Exercised | $ / shares	0
Expired | $ / shares	$ 23.46
2013 Plan [Member]
Number of Shares
Granted | shares	0
Exercised | shares	0
Weighted Average Exercise Price
Granted | $ / shares	$ 0
Exercised | $ / shares	$ 0
Directors Stock Option Plan [Member]
Number of Shares
Beginning Balance | shares	87,000
Granted | shares	0
Exercised | shares	0
Expired | shares	(9,000)
Ending Balance | shares	78,000

Equity Compensation Plans - Add

Equity Compensation Plans - Additional Information (Detail) - USD ($)	1 Months Ended	3 Months Ended	9 Months Ended
	Jun. 30, 2016	Jun. 30, 2016	Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of options granted			$ 203,175
Employee Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of options granted			0
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock grants		7,500
Restricted stock vesting period		1 year
Restricted stock grant date fair value	$ 161,325	$ 161,325
Restricted stock cost	13,444
Restricted stock, deferred taxes	$ 5,016
Number of restricted Shares Vested	1,500	1,500
Directors Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of options granted			203,175
2013 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of options granted			$ 0
Granted, shares			0

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail)	Sep. 30, 2016USD ($)
Income Tax Disclosure [Abstract]
Unrecognized tax benefit	$ 0

Securities - Amortized Cost and

Securities - Amortized Cost and Estimated Fair Value of Securities Available-for-Sale (Detail) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 453,715,977	$ 267,308,756
Gross Unrealized Gains	4,950,407	3,078,262
Gross Unrealized Losses	2,015,067	3,122,615
Estimated Fair Value	456,651,317	267,264,403
Obligations of U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	169,085,427	83,826,411
Gross Unrealized Gains	840,946	1,100
Gross Unrealized Losses	139,652	1,577,145
Estimated Fair Value	169,786,721	82,250,366
Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	129,312,239	92,602,875
Gross Unrealized Gains	976,404	467,693
Gross Unrealized Losses	436,597	1,348,603
Estimated Fair Value	129,852,046	91,721,965
State, County and Municipal [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	152,433,503	87,948,336
Gross Unrealized Gains	3,076,906	2,609,469
Gross Unrealized Losses	1,438,818	181,442
Estimated Fair Value	154,071,591	90,376,363
Other Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,884,808	2,931,134
Gross Unrealized Gains	56,151
Gross Unrealized Losses		15,425
Estimated Fair Value	$ 2,940,959	$ 2,915,709

Securities - Amortized Cost a28

Securities - Amortized Cost and Estimated Fair Value of Securities Held-to-Maturity (Detail)	Dec. 31, 2015USD ($)
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 161,043,404
Gross Unrealized Gains	8,002,431
Gross Unrealized Losses	0
Estimated Fair Value	169,045,835
Obligations of U.S. Government Agencies [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	161,043,404
Gross Unrealized Gains	8,002,431
Gross Unrealized Losses	0
Estimated Fair Value	$ 169,045,835

Securities - Amortized Cost a29

Securities - Amortized Cost and Estimated Fair Value of Securities by Contractual Maturity (Detail) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Available-for-sale, Amortized Cost
Due in one year or less	$ 7,477,707	$ 3,008,448
Due after one year through five years	19,439,088	13,587,885
Due after five years through ten years	107,939,900	80,749,532
Due after ten years	318,859,282	169,962,891
Total Amortized Cost	453,715,977	267,308,756
Held-to-maturity, Amortized Cost
Due in one year or less	0	0
Due after five years through ten years		37,052,187
Due after ten years		123,991,217
Amortized Cost		161,043,404
Available-for-sale, Estimated Fair Value
Due in one year or less	7,546,148	3,028,887
Due after one year through five years	20,255,518	13,985,525
Due after five years through ten years	108,841,086	80,346,720
Due after ten years	320,008,565	169,903,271
Total Fair Value	456,651,317	267,264,403
Held-to-maturity, Estimated Fair Value
Due in one year or less	$ 0	0
Due after five years through ten years		38,528,059
Due after ten years		130,517,776
Total Fair Value		$ 169,045,835

Securities - Summary of Unreali

Securities - Summary of Unrealized Loss Information for Available-for-Sale Securities (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months Fair Value	$ 142,060	$ 136,309
Less than 12 months Unrealized Losses	1,783	2,075
12 months or more Fair Value	35,308	41,874
12 months or more Unrealized Losses	232	1,048
Total Fair Value	177,368	178,183
Total Unrealized Losses	2,015	3,123
Obligations of U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months Fair Value	50,356	50,915
Less than 12 months Unrealized Losses	80	716
12 months or more Fair Value	4,905	26,335
12 months or more Unrealized Losses	60	861
Total Fair Value	55,261	77,250
Total Unrealized Losses	140	1,577
Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months Fair Value	30,835	83,001
Less than 12 months Unrealized Losses	291	1,349
12 months or more Fair Value	27,143
12 months or more Unrealized Losses	145
Total Fair Value	57,978	83,001
Total Unrealized Losses	436	1,349
State, County and Municipal [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months Fair Value	60,869	2,393
Less than 12 months Unrealized Losses	1,412	10
12 months or more Fair Value	3,260	12,623
12 months or more Unrealized Losses	27	172
Total Fair Value	64,129	15,016
Total Unrealized Losses	$ 1,439	182
Other Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
12 months or more Fair Value		2,916
12 months or more Unrealized Losses		15
Total Fair Value		2,916
Total Unrealized Losses		$ 15

Loans - Composition of Net Loan

Loans - Composition of Net Loans (Detail) - USD ($)	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Gross Loans	$ 410,705,000	$ 430,268,000
Unearned Income	(687,000)	(686,000)
Allowance for Loan Losses	(4,113,442)	(6,473,703)	$ (6,828,782)	$ (6,542,326)
Loans, net	405,905,192	423,108,391
Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	335,505,000	341,163,000
Total Gross Loans	335,505,000	341,163,000
Allowance for Loan Losses	(2,977,351)	(5,238,895)	(5,456,159)	(5,202,151)
Commercial Real Estate Portfolio Segment [Member] | Land Development And Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	23,346,000	33,133,000
Total Gross Loans	23,346,000	33,133,000
Commercial Real Estate Portfolio Segment [Member] | Farmland Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	19,902,000	23,293,000
Total Gross Loans	19,902,000	23,293,000
Commercial Real Estate Portfolio Segment [Member] | 1-4 Family Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	100,301,000	104,046,000
Total Gross Loans	100,301,000	104,046,000
Commercial Real Estate Portfolio Segment [Member] | Real Estate Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	191,956,000	180,691,000
Total Gross Loans	191,956,000	180,691,000
Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Business loans	55,095,000	62,480,000
Total Gross Loans	55,095,000	62,480,000
Allowance for Loan Losses	(558,468)	(643,248)	(804,144)	(873,815)
Real Estate Loans [Member] | Commercial and Industrial Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Business loans	54,208,000	61,425,000
Total Gross Loans	54,208,000	61,425,000
Real Estate Loans [Member] | Farm Production and Other Farm Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Business loans	887,000	1,055,000
Total Gross Loans	887,000	1,055,000
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	20,105,000	26,625,000
Total Gross Loans	20,105,000	26,625,000
Allowance for Loan Losses	(577,623)	(591,560)	$ (568,479)	$ (466,360)
Consumer Portfolio Segment [Member] | Credit Card Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,003,000	1,061,000
Total Gross Loans	1,003,000	1,061,000
Consumer Portfolio Segment [Member] | Other Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	19,102,000	25,564,000
Total Gross Loans	$ 19,102,000	$ 25,564,000

Loans - Period-End Non-Accrual

Loans - Period-End Non-Accrual Loans, Segregated by Class (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual Loans	$ 9,734	$ 14,423
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual Loans	9,648	14,359
Commercial Real Estate Portfolio Segment [Member] | Land Development And Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual Loans	139	75
Commercial Real Estate Portfolio Segment [Member] | Farmland Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual Loans	537	158
Commercial Real Estate Portfolio Segment [Member] | 1-4 Family Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual Loans	2,145	2,464
Commercial Real Estate Portfolio Segment [Member] | Real Estate Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual Loans	6,827	11,662
Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual Loans	55	28
Real Estate Loans [Member] | Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual Loans	55	28
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual Loans	31	36
Consumer Portfolio Segment [Member] | Other Consumer Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual Loans	$ 31	$ 36

Loans - Aging Analysis of Past

Loans - Aging Analysis of Past Due Loans, Segregated by Class (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30-89 Days Past Due	$ 8,843	$ 12,505
Total Past Due Loans	13,050	19,902
Current Loans	397,655	410,366
Total Gross Loans	410,705	430,268
Accruing Loans 90 or more Days Past Due	1,091	76
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30-89 Days Past Due	7,780	11,219
Total Past Due Loans	11,908	18,565
Current Loans	323,597	322,598
Total Gross Loans	335,505	341,163
Accruing Loans 90 or more Days Past Due	1,067	25
Commercial Real Estate Portfolio Segment [Member] | Land Development And Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30-89 Days Past Due	199	1,126
Total Past Due Loans	277	1,147
Current Loans	23,069	31,986
Total Gross Loans	23,346	33,133
Accruing Loans 90 or more Days Past Due		21
Commercial Real Estate Portfolio Segment [Member] | Farmland Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30-89 Days Past Due	233	947
Total Past Due Loans	640	951
Current Loans	19,262	22,342
Total Gross Loans	19,902	23,293
Accruing Loans 90 or more Days Past Due		4
Commercial Real Estate Portfolio Segment [Member] | 1-4 Family Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30-89 Days Past Due	6,326	5,131
Total Past Due Loans	8,046	5,704
Current Loans	92,255	98,342
Total Gross Loans	100,301	104,046
Accruing Loans 90 or more Days Past Due	1,067
Commercial Real Estate Portfolio Segment [Member] | Real Estate Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30-89 Days Past Due	1,022	4,015
Total Past Due Loans	2,945	10,763
Current Loans	189,011	169,928
Total Gross Loans	191,956	180,691
Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30-89 Days Past Due	303	257
Total Past Due Loans	380	269
Current Loans	54,715	62,211
Total Gross Loans	55,095	62,480
Accruing Loans 90 or more Days Past Due	22	12
Real Estate Loans [Member] | Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30-89 Days Past Due	292	245
Total Past Due Loans	369	257
Current Loans	53,839	61,168
Total Gross Loans	54,208	61,425
Accruing Loans 90 or more Days Past Due	22	12
Real Estate Loans [Member] | Farm Production and Other Farm Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30-89 Days Past Due	11	12
Total Past Due Loans	11	12
Current Loans	876	1,043
Total Gross Loans	887	1,055
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30-89 Days Past Due	760	1,029
Total Past Due Loans	762	1,068
Current Loans	19,343	25,557
Total Gross Loans	20,105	26,625
Accruing Loans 90 or more Days Past Due	2	39
Consumer Portfolio Segment [Member] | Credit Card Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30-89 Days Past Due	9	12
Total Past Due Loans	11	21
Current Loans	992	1,040
Total Gross Loans	1,003	1,061
Accruing Loans 90 or more Days Past Due	2	9
Consumer Portfolio Segment [Member] | Other Consumer Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30-89 Days Past Due	751	1,017
Total Past Due Loans	751	1,047
Current Loans	18,351	24,517
Total Gross Loans	19,102	25,564
Accruing Loans 90 or more Days Past Due		30
Loans 90 or more Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	4,207	7,397
Loans 90 or more Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	4,128	7,346
Loans 90 or more Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Land Development And Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	78	21
Loans 90 or more Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Farmland Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	407	4
Loans 90 or more Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | 1-4 Family Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	1,720	573
Loans 90 or more Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	1,923	6,748
Loans 90 or more Days Past Due [Member] | Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	77	12
Loans 90 or more Days Past Due [Member] | Real Estate Loans [Member] | Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	77	12
Loans 90 or more Days Past Due [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	2	39
Loans 90 or more Days Past Due [Member] | Consumer Portfolio Segment [Member] | Credit Card Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	$ 2	9
Loans 90 or more Days Past Due [Member] | Consumer Portfolio Segment [Member] | Other Consumer Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans		$ 30

Loans - Additional Information

Loans - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2016USD ($)Loans	Sep. 30, 2016USD ($)	Dec. 31, 2015USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Minimum loan limit considered for impairment evaluation by management		$ 100,000
Number of loans removed from impaired loan listing under impairment threshold | Loans	97
Loans removed from impaired loan listing under impairment threshold	$ 2,731,121
Number of loans removed from impaired loan listing over impairment threshold | Loans	6
Loans removed from impaired loan listing over impairment threshold	$ 1,651,023
Restructured Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses		$ 174,274	$ 174,274

Loans - Impaired Loans, Segrega

Loans - Impaired Loans, Segregated by Class (Detail) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	$ 8,521,000	$ 15,583,000
Recorded Investment With No Allowance		3,296,000
Recorded Investment With Allowance	8,520,912	12,286,822
Total Recorded Investment	8,521,000	15,583,000
Related Allowance	848,091	2,996,708
Average Recorded Allowance	10,161,000	14,332,000
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	8,521,000	15,519,000
Recorded Investment With No Allowance		3,232,000
Recorded Investment With Allowance	8,521,000	12,287,000
Total Recorded Investment	8,521,000	15,519,000
Related Allowance	848,000	2,997,000
Average Recorded Allowance	10,161,000	14,205,000
Commercial Real Estate Portfolio Segment [Member] | Land Development And Construction Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance		75,000
Recorded Investment With Allowance		75,000
Total Recorded Investment		75,000
Related Allowance		75,000
Average Recorded Allowance		85,000
Commercial Real Estate Portfolio Segment [Member] | Farmland Loan [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	163,000	679,000
Recorded Investment With No Allowance		69,000
Recorded Investment With Allowance	163,000	610,000
Total Recorded Investment	163,000	679,000
Related Allowance	28,000	54,000
Average Recorded Allowance	14,000	739,000
Commercial Real Estate Portfolio Segment [Member] | 1-4 Family Mortgages [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	2,587,000	3,103,000
Recorded Investment With No Allowance		1,754,000
Recorded Investment With Allowance	2,587,000	1,349,000
Total Recorded Investment	2,587,000	3,103,000
Related Allowance	354,000	183,000
Average Recorded Allowance	2,764,000	2,829,000
Commercial Real Estate Portfolio Segment [Member] | Real Estate Loan [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	5,771,000	11,662,000
Recorded Investment With No Allowance		1,409,000
Recorded Investment With Allowance	5,771,000	10,253,000
Total Recorded Investment	5,771,000	11,662,000
Related Allowance	466,000	2,685,000
Average Recorded Allowance	$ 7,383,000	10,552,000
Real Estate Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance		28,000
Recorded Investment With No Allowance		28,000
Total Recorded Investment		28,000
Average Recorded Allowance		49,000
Real Estate Loans [Member] | Commercial and Industrial Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance		28,000
Recorded Investment With No Allowance		28,000
Total Recorded Investment		28,000
Average Recorded Allowance		49,000
Consumer Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance		36,000
Recorded Investment With No Allowance		36,000
Total Recorded Investment		36,000
Average Recorded Allowance		78,000
Consumer Portfolio Segment [Member] | Other Consumer Loan [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance		36,000
Recorded Investment With No Allowance		36,000
Total Recorded Investment		36,000
Average Recorded Allowance		$ 78,000

Loans - Troubled Debt Restructu

Loans - Troubled Debt Restructurings Segregated by Class (Detail) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016USD ($)Loan	Dec. 31, 2015USD ($)Loan
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	3	3
Post-Modification Outstanding Recorded Investment	$ 3,467	$ 3,858
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	3	3
Pre-Modification Outstanding Recorded Investment	$ 4,871	$ 4,871
Post-Modification Outstanding Recorded Investment	$ 3,467	$ 3,858
Commercial Real Estate Portfolio Segment [Member] | Real Estate Loan [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	3	3
Pre-Modification Outstanding Recorded Investment	$ 4,871	$ 4,871
Post-Modification Outstanding Recorded Investment	$ 3,467	$ 3,858

Loans - Changes in Troubled Deb

Loans - Changes in Troubled Debt Restructurings (Detail) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016USD ($)Loan	Dec. 31, 2015USD ($)Loan
Receivables [Abstract]
Number of Loans | Loan	3	3
Principal paydowns, Recorded Investment	$ (391)
Post-Modification Outstanding Recorded Investment	$ 3,467	$ 3,858

Loans - Detailed Amount of Gros

Loans - Detailed Amount of Gross Loans Segregated by Loan Grade and Class (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	$ 410,705	$ 430,268
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	335,505	341,163
Commercial Real Estate Portfolio Segment [Member] | Land Development And Construction Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	23,346	33,133
Commercial Real Estate Portfolio Segment [Member] | Farmland Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	19,902	23,293
Commercial Real Estate Portfolio Segment [Member] | 1-4 Family Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	100,301	104,046
Commercial Real Estate Portfolio Segment [Member] | Real Estate Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	191,956	180,691
Real Estate Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	55,095	62,480
Real Estate Loans [Member] | Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	54,208	61,425
Real Estate Loans [Member] | Farm Production and Other Farm Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	887	1,055
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	20,105	26,625
Consumer Portfolio Segment [Member] | Credit Card Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,003	1,061
Consumer Portfolio Segment [Member] | Other Consumer Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	19,102	25,564
Satisfactory 1, 2, 3, 4 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	381,221	384,987
Satisfactory 1, 2, 3, 4 [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	307,214	297,296
Satisfactory 1, 2, 3, 4 [Member] | Commercial Real Estate Portfolio Segment [Member] | Land Development And Construction Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	22,402	31,889
Satisfactory 1, 2, 3, 4 [Member] | Commercial Real Estate Portfolio Segment [Member] | Farmland Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	17,732	21,084
Satisfactory 1, 2, 3, 4 [Member] | Commercial Real Estate Portfolio Segment [Member] | 1-4 Family Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	86,404	88,425
Satisfactory 1, 2, 3, 4 [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	180,676	155,898
Satisfactory 1, 2, 3, 4 [Member] | Real Estate Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	54,147	61,973
Satisfactory 1, 2, 3, 4 [Member] | Real Estate Loans [Member] | Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	53,260	60,918
Satisfactory 1, 2, 3, 4 [Member] | Real Estate Loans [Member] | Farm Production and Other Farm Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	887	1,055
Satisfactory 1, 2, 3, 4 [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	19,860	25,718
Satisfactory 1, 2, 3, 4 [Member] | Consumer Portfolio Segment [Member] | Credit Card Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,001	1,052
Satisfactory 1, 2, 3, 4 [Member] | Consumer Portfolio Segment [Member] | Other Consumer Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	18,859	24,666
Special Mention 5,6 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	7,571	18,839
Special Mention 5,6 [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	6,698	18,351
Special Mention 5,6 [Member] | Commercial Real Estate Portfolio Segment [Member] | Land Development And Construction Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	190	202
Special Mention 5,6 [Member] | Commercial Real Estate Portfolio Segment [Member] | Farmland Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	925	989
Special Mention 5,6 [Member] | Commercial Real Estate Portfolio Segment [Member] | 1-4 Family Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	2,964	4,874
Special Mention 5,6 [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	2,619	12,286
Special Mention 5,6 [Member] | Real Estate Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	767	377
Special Mention 5,6 [Member] | Real Estate Loans [Member] | Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	767	377
Special Mention 5,6 [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	106	111
Special Mention 5,6 [Member] | Consumer Portfolio Segment [Member] | Other Consumer Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	106	111
Substandard 7 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	21,913	26,432
Substandard 7 [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	21,593	25,516
Substandard 7 [Member] | Commercial Real Estate Portfolio Segment [Member] | Land Development And Construction Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	754	1,042
Substandard 7 [Member] | Commercial Real Estate Portfolio Segment [Member] | Farmland Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,245	1,220
Substandard 7 [Member] | Commercial Real Estate Portfolio Segment [Member] | 1-4 Family Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	10,933	10,747
Substandard 7 [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	8,661	12,507
Substandard 7 [Member] | Real Estate Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	181	130
Substandard 7 [Member] | Real Estate Loans [Member] | Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	181	130
Substandard 7 [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	139	786
Substandard 7 [Member] | Consumer Portfolio Segment [Member] | Credit Card Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	2	9
Substandard 7 [Member] | Consumer Portfolio Segment [Member] | Other Consumer Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	$ 137	777
Doubtful 8 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans		7
Doubtful 8 [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans		7
Doubtful 8 [Member] | Consumer Portfolio Segment [Member] | Other Consumer Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans		7
Loss 9 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans		3
Loss 9 [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans		3
Loss 9 [Member] | Consumer Portfolio Segment [Member] | Other Consumer Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans		$ 3

Loans - Detailed Activity in Al

Loans - Detailed Activity in Allowance for Loan Losses by Portfolio Segment (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance			$ 6,473,703	$ 6,542,326
Provision for possible loan losses	$ 184,018	$ 141,704	97,468	407,698
Chargeoffs			2,563,204	264,400
Recoveries			105,475	143,158
Net chargeoffs			2,457,729	121,242
Ending Balance	4,113,442	6,828,782	4,113,442	6,828,782
Loans individually evaluated for impairment					$ 848,091	$ 2,792,962
Loans collectively evaluated for impairment					3,265,351	4,035,820
Ending Balance	4,113,442	6,828,782	4,113,442	6,828,782	4,113,442	6,828,782
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance			5,238,895	5,202,151
Provision for possible loan losses			214,491	338,668
Chargeoffs			2,508,459	152,503
Recoveries			32,424	67,843
Net chargeoffs			2,476,035	84,660
Ending Balance	2,977,351	5,456,159	2,977,351	5,456,159
Loans individually evaluated for impairment					848,091	2,767,962
Loans collectively evaluated for impairment					2,129,260	2,688,197
Ending Balance	2,977,351	5,456,159	2,977,351	5,456,159	2,977,351	5,456,159
Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance			643,248	873,815
Provision for possible loan losses			(93,733)	(81,216)
Chargeoffs			5,428
Recoveries			14,381	11,545
Net chargeoffs			(8,953)	(11,545)
Ending Balance	558,468	804,144	558,468	804,144
Loans individually evaluated for impairment						25,000
Loans collectively evaluated for impairment					558,468	779,144
Ending Balance	558,468	804,144	558,468	804,144	558,468	804,144
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance			591,560	466,360
Provision for possible loan losses			(23,290)	150,246
Chargeoffs			49,317	111,897
Recoveries			58,670	63,770
Net chargeoffs			(9,353)	48,127
Ending Balance	577,623	568,479	577,623	568,479
Loans collectively evaluated for impairment					577,623	568,479
Ending Balance	$ 577,623	$ 568,479	$ 577,623	$ 568,479	$ 577,623	$ 568,479

Loans - Recorded Investment in

Loans - Recorded Investment in Loans Related to Balance in Allowance for Possible Loan Losses by Portfolio Segment (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for specific impairment	$ 8,521	$ 15,583
Loans collectively evaluated for general impairment	402,184	414,685
Total Gross Loans	410,705	430,268
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for specific impairment	8,521	15,519
Loans collectively evaluated for general impairment	326,984	325,644
Total Gross Loans	335,505	341,163
Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for specific impairment		28
Loans collectively evaluated for general impairment	55,095	62,452
Total Gross Loans	55,095	62,480
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for specific impairment		36
Loans collectively evaluated for general impairment	20,105	26,589
Total Gross Loans	$ 20,105	$ 26,625

Fair Value of Financial Instr41

Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 456,651,317	$ 267,264,403
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	453,710,358	264,348,694
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	2,940,959	2,915,709
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	456,651,317	267,264,403
Fair Value, Measurements, Recurring [Member] | Obligations of U.S. Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	169,786,721	82,250,366
Fair Value, Measurements, Recurring [Member] | Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	129,852,046	91,721,965
Fair Value, Measurements, Recurring [Member] | State, County and Municipal [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	154,071,591	90,376,363
Fair Value, Measurements, Recurring [Member] | Other Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	2,940,959	2,915,709
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	453,710,358	264,348,694
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Obligations of U.S. Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	169,786,721	82,250,366
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	129,852,046	91,721,965
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | State, County and Municipal [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	154,071,591	90,376,363
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	2,940,959	2,915,709
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Other Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 2,940,959	$ 2,915,709

Fair Value of Financial Instr42

Fair Value of Financial Instruments - Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Detail)	9 Months Ended
	Sep. 30, 2016USD ($)
Fair Value Disclosures [Abstract]
Balance at January 1, 2016	$ 2,915,709
Principal payments received	(46,326)
Unrealized gains included in other comprehensive income	71,576
Balance at September 30, 2016	$ 2,940,959

Fair Value of Financial Instr43

Fair Value of Financial Instruments - Additional Information (Detail) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Gains or losses in earnings attributable to the change in unrealized gains or losses	$ 0	$ 0
Carrying value of an impaired loan	8,520,912	12,286,822
Impaired loans, allowance for loan losses	848,091	2,996,708
Other Real Estate Owned [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other real estate owned	2,149,625	869,564
Other real estate owned ("OREO") acquired and sold during period	65,257
Additional write downs on OREO previously acquired	$ 0	0
Real Estate Investment Property, at Cost		$ 0

Fair Value of Financial Instr44

Fair Value of Financial Instruments - Asset Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Other Real Estate Owned [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value on non-recurring Basis	$ 2,149,625	$ 869,564
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value on non-recurring Basis	9,637,571	9,464,626
Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value on non-recurring Basis	7,672,821	8,926,364
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value on non-recurring Basis	1,964,750	538,262
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value on non-recurring Basis	9,637,571	9,464,626
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value on non-recurring Basis	7,672,821	8,926,364
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Other Real Estate Owned [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value on non-recurring Basis	$ 1,964,750	$ 538,262

Fair Value of Financial Instr45

Fair Value of Financial Instruments - Carrying Value and Estimated Fair Value of Financial Instruments (Detail) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Financial assets
Cash and due from banks	$ 22,727,843	$ 14,947,690
Interest bearing deposits with banks	79,169,722	42,267,777
Securities held-to-maturity		169,045,835
Securities available-for-sale	456,651,317	267,264,403
Net loans	407,167,494	425,096,569
Financial liabilities
Deposits	780,611,674	753,530,743
Federal Home Loan Bank advances	20,420,353	20,534,935
Securities Sold under Agreement to Repurchase	118,054,055	104,298,182
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets
Cash and due from banks	22,727,843	14,947,690
Interest bearing deposits with banks	79,169,722	42,267,777
Financial liabilities
Deposits	580,506,344	542,640,313
Securities Sold under Agreement to Repurchase	118,054,055	104,298,182
Significant Other Observable Inputs (Level 2) [Member]
Financial assets
Securities held-to-maturity		169,045,835
Securities available-for-sale	453,710,358	264,348,694
Significant Unobservable Inputs (Level 3) [Member]
Financial assets
Securities available-for-sale	2,940,959	2,915,709
Net loans	407,167,494	425,096,569
Financial liabilities
Deposits	200,105,330	210,890,430
Federal Home Loan Bank advances	20,420,353	20,534,935
Carrying Value [Member]
Financial assets
Cash and due from banks	22,727,843	14,947,690
Interest bearing deposits with banks	79,169,722	42,267,777
Securities held-to-maturity		161,043,404
Securities available-for-sale	456,651,317	267,264,403
Net loans	405,905,192	423,108,391
Financial liabilities
Deposits	780,463,454	753,404,788
Federal Home Loan Bank advances	20,000,000	20,000,000
Securities Sold under Agreement to Repurchase	$ 118,054,055	$ 104,298,182