Prime Meridian Holding (PMHG) 10-Q 15 May 17 2017 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2017	May 10, 2017
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q1
Trading Symbol	PMHG
Entity Registrant Name	Prime Meridian Holding Co
Entity Central Index Key	1,586,454
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		2,007,072

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets
Cash and due from banks	$ 9,699	$ 4,817
Federal funds sold	20,148	25,963
Interest-bearing deposits	5,353	5,385
Total cash and cash equivalents	35,200	36,165
Securities available for sale	42,950	33,103
Loans held for sale	2,695	3,291
Loans, net of allowance for loan losses of $2,908 and $2,876	225,742	222,768
Federal Home Loan Bank stock	274	220
Premises and equipment, net	5,091	4,929
Accrued interest receivable	782	798
Bank-owned life insurance	1,723	1,711
Other assets	1,072	956
Total assets	315,529	303,941
Liabilities
Noninterest-bearing demand deposits	69,244	61,856
Savings, NOW and money-market deposits	196,897	192,768
Time deposits	20,108	20,723
Total deposits	286,249	275,347
Official checks	838	632
Other liabilities	880	880
Total liabilities	287,967	276,859
Stockholders' equity:
Preferred stock, undesignated; 1,000,000 shares authorized, none issued or outstanding
Common stock, $.01 par value; 9,000,000 shares authorized, 2,006,180 and 2,004,707 issued and outstanding	20	20
Additional paid-in capital	20,768	20,732
Retained earnings	6,959	6,563
Accumulated other comprehensive (loss) income	(185)	(233)
Total stockholders' equity	27,562	27,082
Total liabilities and stockholders' equity	$ 315,529	$ 303,941

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Loans receivable, allowance for loan losses	$ 2,908	$ 2,876
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	9,000,000	9,000,000
Common stock, shares issued	2,006,180	2,004,707
Common stock, shares outstanding	2,006,180	2,004,707

Consolidated Statements of Earn

Consolidated Statements of Earnings - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Interest Income:
Loans	$ 2,635	$ 2,274
Securities	209	200
Other	69	25
Total interest income	2,913	2,499
Interest expense -
Deposits	247	192
Net interest income	2,666	2,307
Provision for loan losses	35	134
Net interest income after provision for loan losses	2,631	2,173
Non interest income:
Service charges and fees on deposit accounts	80	48
Mortgage banking revenue	251	151
Income from bank-owned life insurance	12	13
(Loss) gain on sale of securities available for sale	(1)	15
Other income	81	64
Total noninterest income	423	291
Noninterest expense:
Salaries and employee benefits	1,247	985
Occupancy and equipment	247	203
Professional fees	63	105
Advertising	154	159
FDIC/State assessment	46	32
Software maintenance, amortization and other	129	126
Other	323	269
Total noninterest expense	2,209	1,879
Earnings before income taxes	845	585
Income taxes	309	203
Net earnings	$ 536	$ 382
Basic earnings per share	$ 0.27	$ 0.19
Diluted earnings per share	0.27	0.19
Cash dividends per common share	$ 0.07	$ 0.05

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net earnings	$ 536	$ 382
Change in unrealized gain (loss) on securities:
Unrealized gain arising during the year	75	514
Reclassification adjustment for realized loss (gain)	1	(15)
Net change in unrealized gain (loss)	76	499
Deferred income taxes on above change	(28)	(184)
Total other comprehensive income	48	315
Comprehensive income	$ 584	$ 697

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance, Value at Dec. 31, 2015	$ 24,933	$ 20	$ 20,415	$ 4,442	$ 56
Beginning Balance, Shares at Dec. 31, 2015		1,975,329
Net earnings (unaudited)	382			382
Dividend Paid (unaudited)	(99)			(99)
Net change in unrealized gain (loss) on securities available for sale, net of income taxes (unaudited)	315				315
Common stock issued as compensation to directors (unaudited), Value	10		10
Common stock issued as compensation to directors (unaudited), Shares		770
Ending Balance (unaudited), Value at Mar. 31, 2016	25,541	$ 20	20,425	4,725	371
Ending Balance (unaudited), Shares at Mar. 31, 2016		1,976,099
Beginning Balance, Value at Dec. 31, 2016	$ 27,082	$ 20	20,732	6,563	(233)
Beginning Balance, Shares at Dec. 31, 2016	2,004,707	2,004,707
Net earnings (unaudited)	$ 536			536
Dividend Paid (unaudited)	(140)			(140)
Net change in unrealized gain (loss) on securities available for sale, net of income taxes (unaudited)	48				48
Stock options exercised (unaudited), Value	2		2
Stock options exercised (unaudited), Shares		200
Common stock issued as compensation to directors (unaudited), Value	19		19
Common stock issued as compensation to directors (unaudited), Shares		1,273
Stock-based compensation (unaudited)	15		15
Ending Balance (unaudited), Value at Mar. 31, 2017	$ 27,562	$ 20	$ 20,768	$ 6,959	$ (185)
Ending Balance (unaudited), Shares at Mar. 31, 2017	2,006,180	2,006,180

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net earnings	$ 536	$ 382
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	137	89
Provision for loan losses	35	134
Net amortization of deferred loan fees	(30)	(26)
Loss (gain) on sale of securities available for sale	1	(15)
Amortization of premiums and discounts on securities available for sale	86	105
(Loss) gain on sale of loans held for sale	(244)	(146)
Proceeds from the sale of loans held for sale	15,217	9,182
Loans originated as held for sale	(14,377)	(8,558)
Stock issued as compensation	19	10
Stock-based compensation expense	15
Income from bank-owned life insurance	(12)	(13)
Net decrease in accrued interest receivable	16	13
Net (increase) decrease in other assets	(144)	267
Net increase (decrease) in other liabilities and official checks	206	(268)
Net cash provided by operating activities	1,461	1,156
Cash flows from investing activities:
Loan originations, net of principal repayments	(2,979)	(10,285)
Purchase of securities available for sale	(11,537)	(3,637)
Principal repayments of securities available for sale	915	1,646
Proceeds from sale of securities available for sale	750	2,330
Maturities and calls of securities available for sale	14	17
Purchase of Federal Home Loan Bank stock	(54)	(31)
Purchase of premises and equipment	(299)	(85)
Net cash used in investing activities	(13,190)	(10,045)
Cash flows from financing activities:
Net increase in deposits	10,902	19,338
Proceeds from stock options exercised	2
Common stock dividends paid	(140)	(99)
Net cash provided by financing activities	10,764	19,239
Net (decrease) increase in cash and cash equivalents	(965)	10,350
Cash and cash equivalents at beginning of period	36,165	8,429
Cash and cash equivalents at end of period	35,200	18,779
Supplemental disclosure of cash flow information Cash paid during the period for:
Interest	247	193
Income taxes		40
Noncash transaction-
Accumulated other comprehensive loss, net change in unrealized gain (loss) on securities available for sale, net of taxes	$ 48	$ 315

General

General	3 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
General	(1) General Prime Meridian Holding Company (“PMHG”) owns 100% of the outstanding common stock of Prime Meridian Bank (the “Bank”) (collectively the “Company”). PMHG’s primary activity is the operation of the Bank. The Bank is a Florida state-chartered commercial bank. The deposit accounts of the Bank are insured up to the applicable limits by the Federal Deposit Insurance Corporation (“FDIC”). The Bank offers a variety of community banking services to individual and corporate clients through its three banking offices located in Tallahassee and Crawfordville, Florida and its online banking platform. In the opinion of management, the accompanying condensed consolidated financial statements of the Company contain all adjustments (consisting principally of normal recurring accruals) necessary to present fairly the financial position at March 31, 2017, and the results of operations for the three ended March 31, 2017 and 2016. The results of operations for the three months ended March 31, 2017 are not necessarily indicative of the results to be expected for the full year. Comprehensive Income. available-for-sale Stock-Based Compensation. Mortgage Banking Revenue. Recent Accounting Standards Update. No. 2016-01, Financial Instruments-Overall (Subtopic 825-10): available-for-sale (1) General, Continued In February 2016, the FASB issued ASU No. 2016-2, Leases (Topic 842) In March 2016, the FASB issued ASU No. 2016-09, Compensation-Stock Compensation (Topic 718) In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326) available-for-sale

Securities Available for Sale

Securities Available for Sale	3 Months Ended
	Mar. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Securities Available for Sale	(2) Securities Available for Sale Securities are classified according to management’s intent. The carrying amount of securities and fair values are as follows: Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (in thousands) At March 31, 2017 U.S. Government agency securities $ 1,339 — (5 ) 1,334 Municipal securities 12,546 126 (205 ) 12,467 Mortgage-backed securities 29,359 49 (259 ) 29,149 $ 43,244 175 (469 ) 42,950 At December 31, 2016 U.S. Government agency securities 2,186 2 (17 ) 2,171 Municipal securities 12,614 91 (282 ) 12,423 Mortgage-backed securities 18,673 36 (200 ) 18,509 $ 33,473 129 (499 ) 33,103 The following table summarizes the sale of securities available for sale. Three Months Ended March 31, (in thousands) 2017 2016 Proceeds from sale of securities $ 750 2,330 Gross gains — 15 Gross losses (1 ) — Net (loss) gain on sale of securities (1 ) 15 Securities with gross unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous loss position, are as follows: Less Than Twelve Months Over Twelve Months Gross Gross Unrealized Fair Unrealized Fair Losses Value Losses Value (in thousands) At March 31, 2017 Securities Available for Sale U.S. Government agency securities $ (5 ) 1,334 — — Municipal securities (205 ) 4,805 — — Mortgage-backed securities (252 ) 16,159 (7 ) 460 $ (462 ) 22,298 (7 ) 460 At December 31, 2016 Securities Available for Sale U.S. Government agency securities (17 ) 1,529 — — Municipal securities (282 ) 6,111 — — Mortgage-backed securities (191 ) 12,709 (9 ) 501 $ (490 ) 20,349 (9 ) 501 The unrealized losses at March 31, 2017 and December 31, 2016 on twenty-five and twenty-four securities, respectively, were caused by market conditions. It is expected that the securities would not be settled at a price less than the par value of the investments. Because the decline in fair value is attributable to market conditions and not credit quality, and because the Company has the ability and intent to hold these investments until a market price recovery or maturity, these investments are not considered other-than-temporarily impaired. Securities available for sale measured at fair value on a recurring basis are summarized below: Fair Value Measurements Using Quoted Prices In Active Significant Markets for Other Significant Identical Observable Unobservable Fair Assets Inputs Inputs Value Level 1 (Level 2) (Level 3) (in thousands) At March 31, 2017 U.S. Government agency securities $ 1,334 — 1,334 — Municipal securities 12,467 — 12,467 — Mortgage-backed securities 29,149 — 29,149 — $ 42,950 — 42,950 — At December 31, 2016 U.S. Government agency securities 2,171 — 2,171 — Municipal securities 12,423 — 12,423 — Mortgage-backed securities 18,509 — 18,509 — $ 33,103 — 33,103 — During the three months ended March 31, 2017 and 2016, no securities were transferred in or out of Level 1, Level 2 or Level 3. The scheduled maturities of securities are as follows: Amortized Fair Cost Value (in thousands) At March 31, 2017 Due in one to five years $ 3,296 3,274 Due in five to ten years 7,762 7,825 Due after 10 years 2,827 2,702 Mortgage-backed securities 29,359 29,149 $ 43,244 42,950

Loans

Loans	3 Months Ended
	Mar. 31, 2017
Receivables [Abstract]
Loans	(3) Loans The segments and classes of loans are as follows: At March 31, At December 31, (in thousands) 2017 2016 Real estate mortgage loans: Commercial $ 65,488 65,805 Residential and home equity 89,877 88,883 Construction 22,709 19,991 Total real estate mortgage loans 178,074 174,679 Commercial loans 45,607 46,340 Consumer and other loans 4,589 4,275 Total loans 228,270 225,294 Add (deduct): Net deferred loan costs 380 350 Allowance for loan losses (2,908 ) (2,876 ) Loans, net $ 225,742 222,768 An analysis of the change in the allowance for loan losses follows: Real Estate Mortgage Loans Residential Consumer and Home Commercial and Other (in thousands) Commercial Equity Construction Loans Loans Total Three-Month Period Ended March 31, 2017 Beginning balance $ 775 1,074 258 714 55 2,876 (Credit) provision for loan losses (8 ) 12 35 (10 ) 6 35 Net (charge-offs) recoveries — — — — (3 ) (3 ) Ending balance $ 767 1,086 293 704 58 2,908 Three-Month Period Ended March 31, 2016 Beginning balance $ 707 868 246 596 56 2,473 (Credit) provision for loan losses (6 ) 40 2 94 4 134 Net (charge-offs) recoveries — — — — (2 ) (2 ) Ending balance $ 701 908 248 690 58 2,605 At March 31, 2017 Individually evaluated for impairment: Recorded investment $ — 663 73 69 — 805 Balance in allowance for loan losses $ — — — 69 — 69 Individually evaluated for impairment: Recorded investment $ 65,488 89,214 22,636 45,538 4,589 227,465 Balance in allowance for loan losses $ 767 1,086 293 635 58 2,839 At December 31, 2016 Individually evaluated for impairment: Recorded investment $ — 662 73 76 — 811 Balance in allowance for loan losses $ — — — 76 — 76 Individually evaluated for impairment: Recorded investment $ 65,805 88,221 19,918 46,264 4,275 224,483 Balance in allowance for loan losses $ 775 1,074 258 638 55 2,800 The Company has divided the loan portfolio into three portfolio segments and five portfolio classes, each with different risk characteristics and methodologies for assessing risk. All loans are underwritten based upon standards set forth in the policies approved by the Company’s Board of Directors. The Company identifies the portfolio segments and classes as follows: Real Estate Mortgage Loans. Commercial. non-owner mixed-use Residential and Home Equity. one-to-four nonowner-occupied 1-year, 3-year, 5-year, 7-year 15-year 30-year Construction. Commercial Loans. Small-to-medium Other factors of risk could include changes in the borrower’s management and fluctuations in collateral value. Additionally, there may be refinancing risk if a commercial loan includes a balloon payment which must be refinanced or paid off at loan maturity. In reference to our risk management process, our commercial loan portfolio presents a higher risk profile than our consumer real estate and consumer loan portfolios. Therefore, we require that all loans to businesses must have a clearly stated and reasonable payment plan to allow for timely retirement of debt, unless secured by liquid collateral or as otherwise justified. Consumer and Other Loans. The following summarizes the loan credit quality: Real Estate Mortgage Loans (in thousands) Commercial Residential Construction Commercial Consumer Total At March 31, 2017 Grade: Pass $ 61,458 85,335 22,158 44,840 4,541 218,332 Special mention 4,030 3,507 371 319 46 8,273 Substandard — 1,035 180 448 2 1,665 Doubtful — — — — — — Loss — — — — — — Total $ 65,488 89,877 22,709 45,607 4,589 228,270 At December 31, 2016 Grade: Pass 61,734 84,695 19,485 45,623 4,227 215,764 Special mention 4,071 3,152 333 250 46 7,852 Substandard — 1,036 173 467 2 1,678 Doubtful — — — — — — Loss — — — — — — Total $ 65,805 88,883 19,991 46,340 4,275 225,294 The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt such as current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. The Company analyzes loans individually by classifying the loans as to credit risk. Loans classified as substandard or special mention are reviewed quarterly by the Company for further deterioration or improvement to determine if they are appropriately classified and whether there is any impairment. All loans are graded upon initial issuance. Furthermore, construction loans, non-owner Loans excluded from the review process above are generally classified as pass credits until: (a) they become past due; (b) management becomes aware of deterioration in the credit worthiness of the borrower; or (c) the client contacts the Company for a modification. In these circumstances, the loan is specifically evaluated for potential classification as to special mention, substandard or even charged-off. Pass Special Mention Substandard Doubtful Loss At March 31, 2017, there were four nonaccrual loans, totaling $805,000. Age analysis of past-due Accruing Loans 30-59 Days 60-89 Days Greater Than Past Due Total Past Current Nonaccrual Total (in thousands) At March 31, 2017: Real estate mortgage loans: Commercial $ — — — — 65,488 — 65,488 Residential and home equity — — — — 89,214 663 89,877 Construction — — — — 22,636 73 22,709 Commercial loans 32 — — 32 45,506 69 45,607 Consumer and other loans — — — — 4,589 — 4,589 Total $ 32 — — 32 227,433 805 228,270 At December 31, 2016: Real estate mortgage loans: Commercial — — — — 65,805 — 65,805 Residential and home equity 371 — — 371 87,850 662 88,883 Construction — — — — 19,918 73 19,991 Commercial loans — — — — 46,264 76 46,340 Consumer and other loans — — — — 4,275 — 4,275 Total $ 371 — — 371 224,112 811 225,294 The following summarizes the amount of impaired loans: With No Related Allowance Recorded With an Allowance Recorded Total Unpaid Unpaid Unpaid Contractual Contractual Contractual Recorded Principal Recorded Principal Related Recorded Principal Related (in thousands) Investment Balance Investment Balance Allowance Investment Balance Allowance At March 31, 2017: Residential and home equity $ 663 663 — — — 663 663 — Construction loans 73 73 — — — 73 73 — Commercial loans — — 69 69 69 69 69 69 Total $ 736 736 69 69 69 805 805 69 At December 31, 2016: Residential and home equity 662 662 — — — 662 662 — Construction loans 73 73 — — — 73 73 — Commercial loans — — 76 76 76 76 76 76 Total $ 735 735 76 76 76 811 811 76 The average net investment in impaired loans and interest income recognized and received on impaired loans are as follows: Three Months Ended March 31, 2017 2016 Average Interest Interest Average Interest Interest Recorded Income Income Recorded Income Income (in thousands) Investment Recognized Received Investment Recognized Received Residential and Home Equity $ 650 — — — — — Commercial Loans 73 — 1 146 1 1 Construction 74 — — — — — Total $ 797 — 1 146 1 1 There were no collateral dependent loans measured at fair value on a nonrecurring basis at March 31, 2017 or March 31, 2016. The company did not enter into any new troubled debt restructured loans during the three months ended March 31, 2017 and 2016.

Regulatory Capital

Regulatory Capital	3 Months Ended
	Mar. 31, 2017
Banking and Thrift [Abstract]
Regulatory Capital	(4) Regulatory Capital The Bank is subject to various regulatory capital requirements administered by the banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s and the Bank’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines that involve quantitative measures of the Bank’s assets, liabilities, and certain off-balance Effective January 1, 2015, the Bank, became subject to the new Basel III capital level threshold requirements under the Prompt Corrective Action regulations with full compliance with all of the final rule’s requirements phased in over a multi-year schedule. These new regulations were designed to ensure that banks maintain strong capital positions even in the event of severe economic downturns or unforeseen losses. Changes that could affect the Bank going forward include additional constraints on the inclusion of deferred tax assets in capital and increased risk weightings for nonperforming loans and acquisition/development loans in regulatory capital. Under the new regulations in the first quarter of 2015, the Bank elected an irreversible one-time opt-out Quantitative measures established by regulation to ensure capital adequacy require the Bank to maintain minimum amounts and percentage (set forth in the table below) of total and Tier 1 capital (as defined in the regulations) to risk-weighted assets (as defined), and of Tier 1 capital (as defined) to average assets (as defined). Management believes, as of March 31, 2017 that the Bank meets all capital adequacy requirements to which it is subject. As of March 31, 2017, the Bank is well capitalized under the regulatory framework for prompt corrective action. To be categorized as adequately capitalized, the Bank must maintain minimum total risk-based, Tier 1 risk-based, and Tier 1 leverage percentages as set forth in the table. There are no conditions or events since that notification that management believes have changed the Bank’s category. The Bank’s actual capital amounts and percentages are also presented in the following table. Actual For Capital Adequacy For Well Capitalized (dollars in thousands) Amount Percentage Amount Percentage Amount Percentage As of March 31, 2017 Tier 1 Leverage Capital $ 26,612 8.65 % $ 12,300 4.00 % $ 15,375 5.00 % Common Equity Tier 1 Risk-based Capital 26,612 11.54 10,375 4.50 14,986 6.50 Tier 1 Risk-based Capital 26,612 11.54 13,833 6.00 18,444 8.00 Total Risk-based Capital 29,494 12.79 18,444 8.00 23,055 10.00 As of December 31, 2016 Tier 1 Leverage Capital 25,994 8.73 11,906 4.00 14,883 5.00 Common Equity Tier 1 Risk-based Capital 25,994 11.70 9,995 4.50 14,437 6.50 Tier 1 Risk-based Capital 25,994 11.70 13,326 6.00 17,769 8.00 Total Risk-based Capital 28,772 12.95 17,769 8.00 22,211 10.00

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Earnings Per Share	(5) Earnings Per Share Earnings per share, (“EPS”) have been computed on the basis of the weighted-average number of shares of common stock outstanding. For the three months ended March 31, 2017 and 2016, outstanding stock options are considered dilutive securities for purposes of calculating diluted EPS which was computed using the treasury stock method. 2017 2016 Weighted- Per Weighted- Per Average Share Average Share (dollars in thousands, except per share amounts) Earnings Shares Amount Earnings Shares Amount Three Months Ending March 31: Basic EPS: Net earnings $ 536 2,005,868 $ 0.27 $ 382 1,975,972 $ 0.19 Effect of dilutive securities-Incremental shares from assumed conversion of options 3,288 3,871 Diluted EPS: Net earnings $ 536 2,009,156 $ 0.27 $ 382 1,979,843 $ 0.19

Stock Option Plans

Stock Option Plans	3 Months Ended
	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Option Plans	(6) Stock Option Plans The 2015 Stock Incentive Compensation Plan (the “2015 Plan”) was approved by the Shareholders at the Company’s annual meeting of shareholders on May 20, 2015 and permits the Company to grant the Company’s key employees and directors stock options, stock appreciation rights, performance shares, and phantom stock. Under the 2015 Plan, the number of shares which may be issued is 500,000, but in no instance more than 15% of the issued and outstanding shares of the Company’s common stock. As of March 31, 2017, 11,540 stock options have been granted under the 2015 Plan. Weighted- Weighted- Average Average Remaining Aggregate Number of Exercise Contractual Intrinsic Options Price Term Value Outstanding at December 31, 2016 — — Granted 11,540 $ 17.03 Outstanding at March 31, 2017 11,540 $ 17.03 4.84 years Exercisable at March 31, 2017 11,540 $ 17.03 4.84 years $ 10,040 At March 31, 2017, the fair value of shares vested and recognized as compensation expense was $15,000 for the three months ended March 31, 2017. There was no unrecognized compensation expense related to nonvested share-based compensation arrangements granted under the 2015 Plan. The fair value of each option granted during the three months ended March 31, 2017 was estimated on the date of grant using the Black-Scholes option-pricing model with the following assumptions: Weighted average risk-free interest rate 1.48 % Expected dividend yield — Expected stock volatility 8.54 % Expected life in years 3 Per share fair value of options issued during period $ 1.26 The Company used the guidance in Staff Accounting Bulletin No. 107 to determine the estimated life of options issued. Expected volatility is based on volatility of similar companies’ common stock. The risk-free rate for periods within the contractual life of the option is based on the U.S. Treasury yield curve in effect at the time of grant. The dividend yield is based on the Company’s history and expectation of dividend payouts. As of May 20, 2015, no further grants will be made under the 2007 Stock Option Plan (the “2007 Plan”). Unexercised stock options that were granted under the 2007 Plan will remain outstanding and will expire under the terms of the individual stock grant. A summary of the activity in the Company’s 2007 Stock Option Plan is as follows: Weighted- Weighted- Average Average Remaining Aggregate Number of Exercise Contractual Intrinsic Options Price Term Value Outstanding at December 31, 2015 75,500 $ 10.19 Options exercised — — Outstanding at March 31, 2016 75,500 $ 10.19 Outstanding at December 31, 2016 42,200 $ 10.16 Options exercised (200 ) 10.00 Options forfeited (200 ) 10.00 Outstanding at March 31, 2017 41,800 $ 10.16 2.16 years Exercisable at March 31, 2017 41,300 $ 10.16 2.12 years $ 320,000 In 2012, the Company’s Board of Directors and shareholders adopted the Directors’ Plan. The Directors’ Plan permits the Company’s and the Bank’s directors to elect to receive any compensation to be paid to them in shares of the Company’s common stock. Pursuant to the Directors’ Plan, each director is permitted to make an election to receive shares of stock instead of cash. To encourage directors to elect to receive stock, the Directors’ Plan provides that if a director elects to receive stock, he or she will receive in common stock 110% of the amount of cash fees set by the Board or the Compensation and Nominating Committee. The value of stock to be awarded pursuant to the Directors’ Plan will be the closing price of a share of common stock as traded on the Over-the

Federal Home Loan Bank Advances

Federal Home Loan Bank Advances	3 Months Ended
	Mar. 31, 2017
Federal Home Loan Banks [Abstract]
Federal Home Loan Bank Advances	(7) Federal Home Loan Bank Advances Federal Home Loan Bank (“FHLB”) advances are collateralized by a blanket lien on qualifying residential real estate, commercial real estate, home equity lines of credit and multi-family loans. Under this blanket lien, the Company could borrow up to $29.6 million at March 31, 2017. At March 31, 2017 and December 31, 2016, the Company had no outstanding loans under this line.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	(8) Fair Value of Financial Instruments The estimated fair values and fair value measurement method with respect to the Company’s financial instruments were as follows: At March 31, 2017 At December 31, 2016 Carrying Fair Carrying Fair (in thousands) Level Amount Value Amount Value Financial assets: Cash and cash equivalents 1 $ 35,200 35,200 36,165 36,165 Securities available for sale 2 42,950 42,950 33,103 33,103 Loans held for sale 3 2,695 2,745 3,291 3,500 Loans, net 3 225,742 222,261 222,768 221,320 Federal Home Loan Bank stock 3 274 274 220 220 Accrued interest receivable 3 782 782 798 798 Bank-owned life insurance 3 1,723 1,723 1,711 1,711 Financial liabilities- Deposits 3 286,249 286,420 275,347 275,433 Off Balance Sheet Items 3 — — — — Discussion regarding the assumptions used to compute the estimated fair values of financial instruments can be found in Note 1 to the consolidated financial statements included in the Company’s annual report on Form 10-K

Off-Balance Sheet Financial Ins

Off-Balance Sheet Financial Instruments	3 Months Ended
	Mar. 31, 2017
Text Block [Abstract]
Off-Balance Sheet Financial Instruments	(9) Off-Balance The Company is a party to financial instruments with off-balance-sheet interest-rate The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for available lines of credit, construction loans in process and standby letters of credit is represented by the contractual amount of those instruments. The Company uses the same credit policies in making commitments as it does for on-balance-sheet Commitments to extend credit, construction loans in process and unused lines of credit are agreements to lend to a client as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since some of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Company evaluates each client’s credit worthiness on a case-by-case Standby letters of credit are written conditional commitments issued by the Company to guarantee the performance of a client to a third party. These letters of credit are primarily issued to support third-party borrowing arrangements and generally have expiration dates within one year of issuance. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loans to clients. In the event the client does not perform in accordance with the terms of the agreement with the third party, we would be required to fund the commitment. The maximum potential amount of future payments we could be required to make is represented by the contractual amount of the commitment. If the commitment is funded, we would be entitled to seek recovery from the client. Some of the Company’s standby letters of credit are secured by collateral and those secured letters of credit totaled $834,000 at March 31, 2017. Guaranteed accounts are irrevocable standby letters of credit issued by us to guarantee a client’s credit line with our third-party credit card company, First Arkansas Bank & Trust. As a part of this agreement, we are responsible for the established credit limit on certain accounts plus 10%. The maximum potential amount of future payments we could be required to make is represented by the dollar amount disclosed in the table below. Standby letters of credit and commitments to extend credit typically result in loans with a market interest rate when funded. In 2016, the Company entered into an agreement with another bank. This agreement references an interest rate swap that was transacted between the other bank and its loan client (the “Counterparty”). Should the Counterparty default on its obligations under the interest rate swap agreement with the other bank, then the Company would be liable for 13.208% of all swap liabilities. The maximum potential credit exposure under this contract at March 31, 2017 is $74,000. The maximum potential amount of future payments we could be required to make for off-balance At March 31, 2017 (in thousands) Commitments to extend credit $ 4,752 Construction loans in process $ 9,441 Unused lines of credit $ 36,300 Standby letters of credit $ 1,884 Guaranteed accounts $ 452

General (Policies)

General (Policies)	3 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Comprehensive Income	Comprehensive Income. available-for-sale
Stock Based Compensation	Stock-Based Compensation.
Mortgage Banking Revenue	Mortgage Banking Revenue.
Recent Accounting Standards Update	Recent Accounting Standards Update. No. 2016-01, Financial Instruments-Overall (Subtopic 825-10): available-for-sale In February 2016, the FASB issued ASU No. 2016-2, Leases (Topic 842) In March 2016, the FASB issued ASU No. 2016-09, Compensation-Stock Compensation (Topic 718) In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326) available-for-sale

Securities Available for Sale (

Securities Available for Sale (Tables)	3 Months Ended
	Mar. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Summary of Carrying Amount and Fair Values of Securities	Securities are classified according to management’s intent. The carrying amount of securities and fair values are as follows: Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (in thousands) At March 31, 2017 U.S. Government agency securities $ 1,339 — (5 ) 1,334 Municipal securities 12,546 126 (205 ) 12,467 Mortgage-backed securities 29,359 49 (259 ) 29,149 $ 43,244 175 (469 ) 42,950 At December 31, 2016 U.S. Government agency securities 2,186 2 (17 ) 2,171 Municipal securities 12,614 91 (282 ) 12,423 Mortgage-backed securities 18,673 36 (200 ) 18,509 $ 33,473 129 (499 ) 33,103
Schedule of Sale of Securities Available for Sale	The following table summarizes the sale of securities available for sale. Three Months Ended March 31, (in thousands) 2017 2016 Proceeds from sale of securities $ 750 2,330 Gross gains — 15 Gross losses (1 ) — Net (loss) gain on sale of securities (1 ) 15
Summary of Securities in Continuous Unrealized Loss Position	Securities with gross unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous loss position, are as follows: Less Than Twelve Months Over Twelve Months Gross Gross Unrealized Fair Unrealized Fair Losses Value Losses Value (in thousands) At March 31, 2017 Securities Available for Sale U.S. Government agency securities $ (5 ) 1,334 — — Municipal securities (205 ) 4,805 — — Mortgage-backed securities (252 ) 16,159 (7 ) 460 $ (462 ) 22,298 (7 ) 460 At December 31, 2016 Securities Available for Sale U.S. Government agency securities (17 ) 1,529 — — Municipal securities (282 ) 6,111 — — Mortgage-backed securities (191 ) 12,709 (9 ) 501 $ (490 ) 20,349 (9 ) 501
Securities Available for Sale Measured at Fair Value on Recurring Basis	Securities available for sale measured at fair value on a recurring basis are summarized below: Fair Value Measurements Using Quoted Prices In Active Significant Markets for Other Significant Identical Observable Unobservable Fair Assets Inputs Inputs Value Level 1 (Level 2) (Level 3) (in thousands) At March 31, 2017 U.S. Government agency securities $ 1,334 — 1,334 — Municipal securities 12,467 — 12,467 — Mortgage-backed securities 29,149 — 29,149 — $ 42,950 — 42,950 — At December 31, 2016 U.S. Government agency securities 2,171 — 2,171 — Municipal securities 12,423 — 12,423 — Mortgage-backed securities 18,509 — 18,509 — $ 33,103 — 33,103 —
Scheduled Maturities of Securities with Fair Value and Amortized Cost	The scheduled maturities of securities are as follows: Amortized Fair Cost Value (in thousands) At March 31, 2017 Due in one to five years $ 3,296 3,274 Due in five to ten years 7,762 7,825 Due after 10 years 2,827 2,702 Mortgage-backed securities 29,359 29,149 $ 43,244 42,950

Loans (Tables)

Loans (Tables)	3 Months Ended
	Mar. 31, 2017
Receivables [Abstract]
Segments and Classes of Loans	The segments and classes of loans are as follows: At March 31, At December 31, (in thousands) 2017 2016 Real estate mortgage loans: Commercial $ 65,488 65,805 Residential and home equity 89,877 88,883 Construction 22,709 19,991 Total real estate mortgage loans 178,074 174,679 Commercial loans 45,607 46,340 Consumer and other loans 4,589 4,275 Total loans 228,270 225,294 Add (deduct): Net deferred loan costs 380 350 Allowance for loan losses (2,908 ) (2,876 ) Loans, net $ 225,742 222,768
Summary of Changes in Allowance for Loan Losses	An analysis of the change in the allowance for loan losses follows: Real Estate Mortgage Loans Residential Consumer and Home Commercial and Other (in thousands) Commercial Equity Construction Loans Loans Total Three-Month Period Ended March 31, 2017 Beginning balance $ 775 1,074 258 714 55 2,876 (Credit) provision for loan losses (8 ) 12 35 (10 ) 6 35 Net (charge-offs) recoveries — — — — (3 ) (3 ) Ending balance $ 767 1,086 293 704 58 2,908 Three-Month Period Ended March 31, 2016 Beginning balance $ 707 868 246 596 56 2,473 (Credit) provision for loan losses (6 ) 40 2 94 4 134 Net (charge-offs) recoveries — — — — (2 ) (2 ) Ending balance $ 701 908 248 690 58 2,605 At March 31, 2017 Individually evaluated for impairment: Recorded investment $ — 663 73 69 — 805 Balance in allowance for loan losses $ — — — 69 — 69 Individually evaluated for impairment: Recorded investment $ 65,488 89,214 22,636 45,538 4,589 227,465 Balance in allowance for loan losses $ 767 1,086 293 635 58 2,839 At December 31, 2016 Individually evaluated for impairment: Recorded investment $ — 662 73 76 — 811 Balance in allowance for loan losses $ — — — 76 — 76 Individually evaluated for impairment: Recorded investment $ 65,805 88,221 19,918 46,264 4,275 224,483 Balance in allowance for loan losses $ 775 1,074 258 638 55 2,800
Summary of Loan Credit Quality	The following summarizes the loan credit quality: Real Estate Mortgage Loans (in thousands) Commercial Residential Construction Commercial Consumer Total At March 31, 2017 Grade: Pass $ 61,458 85,335 22,158 44,840 4,541 218,332 Special mention 4,030 3,507 371 319 46 8,273 Substandard — 1,035 180 448 2 1,665 Doubtful — — — — — — Loss — — — — — — Total $ 65,488 89,877 22,709 45,607 4,589 228,270 At December 31, 2016 Grade: Pass 61,734 84,695 19,485 45,623 4,227 215,764 Special mention 4,071 3,152 333 250 46 7,852 Substandard — 1,036 173 467 2 1,678 Doubtful — — — — — — Loss — — — — — — Total $ 65,805 88,883 19,991 46,340 4,275 225,294
Summary of Past Due Loans	Age analysis of past-due Accruing Loans 30-59 Days 60-89 Days Greater Than Past Due Total Past Current Nonaccrual Total (in thousands) At March 31, 2017: Real estate mortgage loans: Commercial $ — — — — 65,488 — 65,488 Residential and home equity — — — — 89,214 663 89,877 Construction — — — — 22,636 73 22,709 Commercial loans 32 — — 32 45,506 69 45,607 Consumer and other loans — — — — 4,589 — 4,589 Total $ 32 — — 32 227,433 805 228,270 At December 31, 2016: Real estate mortgage loans: Commercial — — — — 65,805 — 65,805 Residential and home equity 371 — — 371 87,850 662 88,883 Construction — — — — 19,918 73 19,991 Commercial loans — — — — 46,264 76 46,340 Consumer and other loans — — — — 4,275 — 4,275 Total $ 371 — — 371 224,112 811 225,294
Summary of Impaired Loans	The following summarizes the amount of impaired loans: With No Related Allowance Recorded With an Allowance Recorded Total Unpaid Unpaid Unpaid Contractual Contractual Contractual Recorded Principal Recorded Principal Related Recorded Principal Related (in thousands) Investment Balance Investment Balance Allowance Investment Balance Allowance At March 31, 2017: Residential and home equity $ 663 663 — — — 663 663 — Construction loans 73 73 — — — 73 73 — Commercial loans — — 69 69 69 69 69 69 Total $ 736 736 69 69 69 805 805 69 At December 31, 2016: Residential and home equity 662 662 — — — 662 662 — Construction loans 73 73 — — — 73 73 — Commercial loans — — 76 76 76 76 76 76 Total $ 735 735 76 76 76 811 811 76
Summary of Average Net Investment in Impaired Loans and Interest Income Recognized and Received on Impaired Loans	The average net investment in impaired loans and interest income recognized and received on impaired loans are as follows: Three Months Ended March 31, 2017 2016 Average Interest Interest Average Interest Interest Recorded Income Income Recorded Income Income (in thousands) Investment Recognized Received Investment Recognized Received Residential and Home Equity $ 650 — — — — — Commercial Loans 73 — 1 146 1 1 Construction 74 — — — — — Total $ 797 — 1 146 1 1

Regulatory Capital (Tables)

Regulatory Capital (Tables)	3 Months Ended
	Mar. 31, 2017
Banking and Thrift [Abstract]
Summary of Regulatory Capital Requirements and Bank's Capital Position	The Bank’s actual capital amounts and percentages are also presented in the following table. Actual For Capital Adequacy For Well Capitalized (dollars in thousands) Amount Percentage Amount Percentage Amount Percentage As of March 31, 2017 Tier 1 Leverage Capital $ 26,612 8.65 % $ 12,300 4.00 % $ 15,375 5.00 % Common Equity Tier 1 Risk-based Capital 26,612 11.54 10,375 4.50 14,986 6.50 Tier 1 Risk-based Capital 26,612 11.54 13,833 6.00 18,444 8.00 Total Risk-based Capital 29,494 12.79 18,444 8.00 23,055 10.00 As of December 31, 2016 Tier 1 Leverage Capital 25,994 8.73 11,906 4.00 14,883 5.00 Common Equity Tier 1 Risk-based Capital 25,994 11.70 9,995 4.50 14,437 6.50 Tier 1 Risk-based Capital 25,994 11.70 13,326 6.00 17,769 8.00 Total Risk-based Capital 28,772 12.95 17,769 8.00 22,211 10.00

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Common Share	Outstanding stock options are considered dilutive securities for purposes of calculating diluted EPS which was computed using the treasury stock method. 2017 2016 Weighted- Per Weighted- Per Average Share Average Share (dollars in thousands, except per share amounts) Earnings Shares Amount Earnings Shares Amount Three Months Ending March 31: Basic EPS: Net earnings $ 536 2,005,868 $ 0.27 $ 382 1,975,972 $ 0.19 Effect of dilutive securities-Incremental shares from assumed conversion of options 3,288 3,871 Diluted EPS: Net earnings $ 536 2,009,156 $ 0.27 $ 382 1,979,843 $ 0.19

Stock Option Plans (Tables)

Stock Option Plans (Tables)	3 Months Ended
	Mar. 31, 2017
Black-Scholes Option-Pricing Model Assumptions	The fair value of each option granted during the three months ended March 31, 2017 was estimated on the date of grant using the Black-Scholes option-pricing model with the following assumptions: Weighted average risk-free interest rate 1.48 % Expected dividend yield — Expected stock volatility 8.54 % Expected life in years 3 Per share fair value of options issued during period $ 1.26
2007 Incentive Award Plan [Member]
Summary of Stock Option Activity	A summary of the activity in the Company’s 2007 Stock Option Plan is as follows: Weighted- Weighted- Average Average Remaining Aggregate Number of Exercise Contractual Intrinsic Options Price Term Value Outstanding at December 31, 2015 75,500 $ 10.19 Options exercised — — Outstanding at March 31, 2016 75,500 $ 10.19 Outstanding at December 31, 2016 42,200 $ 10.16 Options exercised (200 ) 10.00 Options forfeited (200 ) 10.00 Outstanding at March 31, 2017 41,800 $ 10.16 2.16 years Exercisable at March 31, 2017 41,300 $ 10.16 2.12 years $ 320,000
2015 Stock Incentive Compensation Plan [Member]
Summary of Stock Option Activity	Weighted- Weighted- Average Average Remaining Aggregate Number of Exercise Contractual Intrinsic Options Price Term Value Outstanding at December 31, 2016 — — Granted 11,540 $ 17.03 Outstanding at March 31, 2017 11,540 $ 17.03 4.84 years Exercisable at March 31, 2017 11,540 $ 17.03 4.84 years $ 10,040

Fair Value of Financial Instr23

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Schedule of Carrying Amounts and Estimated Fair Values of Financial Instruments	The estimated fair values and fair value measurement method with respect to the Company’s financial instruments were as follows: At March 31, 2017 At December 31, 2016 Carrying Fair Carrying Fair (in thousands) Level Amount Value Amount Value Financial assets: Cash and cash equivalents 1 $ 35,200 35,200 36,165 36,165 Securities available for sale 2 42,950 42,950 33,103 33,103 Loans held for sale 3 2,695 2,745 3,291 3,500 Loans, net 3 225,742 222,261 222,768 221,320 Federal Home Loan Bank stock 3 274 274 220 220 Accrued interest receivable 3 782 782 798 798 Bank-owned life insurance 3 1,723 1,723 1,711 1,711 Financial liabilities- Deposits 3 286,249 286,420 275,347 275,433 Off Balance Sheet Items 3 — — — —

Off-Balance Sheet Financial I24

Off-Balance Sheet Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2017
Text Block [Abstract]
Summary of Maximum Potential Amount of Future Payments	The maximum potential amount of future payments we could be required to make for off-balance At March 31, 2017 (in thousands) Commitments to extend credit $ 4,752 Construction loans in process $ 9,441 Unused lines of credit $ 36,300 Standby letters of credit $ 1,884 Guaranteed accounts $ 452

General - Additional Informatio

General - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2017Office
Accounting Policies [Abstract]
Percent of outstanding common stock owns	100.00%
Number of banking offices	3

Securities Available for Sale -

Securities Available for Sale - Summary of Carrying Amount and Fair Values of Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 43,244	$ 33,473
Gross Unrealized Gains	175	129
Gross Unrealized Losses	(469)	(499)
Fair Value	42,950	33,103
US Government Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,339	2,186
Gross Unrealized Gains		2
Gross Unrealized Losses	(5)	(17)
Fair Value	1,334	2,171
Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	12,546	12,614
Gross Unrealized Gains	126	91
Gross Unrealized Losses	(205)	(282)
Fair Value	12,467	12,423
Mortgage-backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	29,359	18,673
Gross Unrealized Gains	49	36
Gross Unrealized Losses	(259)	(200)
Fair Value	$ 29,149	$ 18,509

Securities Available for Sale27

Securities Available for Sale - Schedule of Sale of Securities Available for Sale (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Proceeds from sale of securities	$ 750	$ 2,330
Gross gains		15
Gross losses	(1)
Net (loss) gain on sale of securities	$ (1)	$ 15

Securities Available for Sale28

Securities Available for Sale - Summary of Securities in Continuous Unrealized Loss Position (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Losses, Less Than Twelve Months	$ (462)	$ (490)
Fair Value, Less Than Twelve Months	22,298	20,349
Gross Unrealized Losses, Over Twelve Months	(7)	(9)
Fair Value, Over Twelve Months	460	501
US Government Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Losses, Less Than Twelve Months	(5)	(17)
Fair Value, Less Than Twelve Months	1,334	1,529
Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Losses, Less Than Twelve Months	(205)	(282)
Fair Value, Less Than Twelve Months	4,805	6,111
Mortgage-backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Losses, Less Than Twelve Months	(252)	(191)
Fair Value, Less Than Twelve Months	16,159	12,709
Gross Unrealized Losses, Over Twelve Months	(7)	(9)
Fair Value, Over Twelve Months	$ 460	$ 501

Securities Available for Sale29

Securities Available for Sale - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2017USD ($)Securities	Mar. 31, 2016USD ($)	Dec. 31, 2016Securities
Investments, Debt and Equity Securities [Abstract]
Number of securities in unrealized loss | Securities	25		24
Securities transferred in or out of Level 1, Level 2 or Level 3 | $	$ 0	$ 0

Securities Available for Sale30

Securities Available for Sale - Securities Available for Sale Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 42,950	$ 33,103
US Government Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	1,334	2,171
Municipal Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	12,467	12,423
Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	29,149	18,509
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	42,950	33,103
Level 2 [Member] | US Government Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	1,334	2,171
Level 2 [Member] | Municipal Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	12,467	12,423
Level 2 [Member] | Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 29,149	$ 18,509

Securities Available for Sale31

Securities Available for Sale - Scheduled Maturities of Securities with Fair Value and Amortized Cost (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Due in one to five years, Amortized cost	$ 3,296
Due in five to ten years, Amortized cost	7,762
Due after 10 years, Amortized cost	2,827
Mortgage-backed securities, Amortized cost	29,359
Amortized Cost	43,244	$ 33,473
Due in one to five years, Fair value	3,274
Due in five to ten years, Fair value	7,825
Due after 10 years, Fair value	2,702
Mortgage-backed securities, Fair value	29,149
Total	$ 42,950	$ 33,103

Loans - Segments and Classes of

Loans - Segments and Classes of Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 228,270	$ 225,294
Net deferred loan costs	380	350
Allowance for loan losses	(2,908)	(2,876)	$ (2,605)	$ (2,473)
Loans, net	225,742	222,768
Mortgage Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	178,074	174,679
Mortgage Receivable [Member] | Commercial Real Estate Mortgage Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	65,488	65,805
Allowance for loan losses	(767)	(775)	(701)	(707)
Mortgage Receivable [Member] | Residential and Home Equity Real Estate Mortgage Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	89,877	88,883
Allowance for loan losses	(1,086)	(1,074)	(908)	(868)
Mortgage Receivable [Member] | Construction Real Estate Mortgage Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	22,709	19,991
Allowance for loan losses	(293)	(258)	(248)	(246)
Loans and Finance Receivables [Member] | Commercial Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	45,607	46,340
Allowance for loan losses	(704)	(714)	(690)	(596)
Loans and Finance Receivables [Member] | Consumer and Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	4,589	4,275
Allowance for loan losses	$ (58)	$ (55)	$ (58)	$ (56)

Loans - Summary of Changes in A

Loans - Summary of Changes in Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	$ 2,876	$ 2,473
(Credit) provision for loan losses	35	134
Net (charge-offs) recoveries	(3)	(2)
Ending balance	2,908	2,605
Individually evaluated for impairment:
Recorded investment	805		$ 811
Balance in allowance for loan losses	69		76
Collectively evaluated for impairment:
Recorded investment	227,465		224,483
Balance in allowance for loan losses	2,839		2,800
Mortgage Receivable [Member] | Commercial Real Estate Mortgage Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	775	707
(Credit) provision for loan losses	(8)	(6)
Ending balance	767	701
Collectively evaluated for impairment:
Recorded investment	65,488		65,805
Balance in allowance for loan losses	767		775
Mortgage Receivable [Member] | Residential and Home Equity Real Estate Mortgage Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	1,074	868
(Credit) provision for loan losses	12	40
Ending balance	1,086	908
Individually evaluated for impairment:
Recorded investment	663		662
Collectively evaluated for impairment:
Recorded investment	89,214		88,221
Balance in allowance for loan losses	1,086		1,074
Mortgage Receivable [Member] | Construction Real Estate Mortgage Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	258	246
(Credit) provision for loan losses	35	2
Ending balance	293	248
Individually evaluated for impairment:
Recorded investment	73		73
Collectively evaluated for impairment:
Recorded investment	22,636		19,918
Balance in allowance for loan losses	293		258
Loans and Finance Receivables [Member]
Individually evaluated for impairment:
Balance in allowance for loan losses	69		76
Loans and Finance Receivables [Member] | Commercial Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	714	596
(Credit) provision for loan losses	(10)	94
Ending balance	704	690
Individually evaluated for impairment:
Recorded investment	69		76
Balance in allowance for loan losses	69		76
Collectively evaluated for impairment:
Recorded investment	45,538		46,264
Balance in allowance for loan losses	635		638
Loans and Finance Receivables [Member] | Consumer and Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	55	56
(Credit) provision for loan losses	6	4
Net (charge-offs) recoveries	(3)	(2)
Ending balance	58	$ 58
Collectively evaluated for impairment:
Recorded investment	4,589		4,275
Balance in allowance for loan losses	$ 58		$ 55

Loans - Additional Information

Loans - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2017USD ($)ClassSecurityLoanSegment	Dec. 31, 2016USD ($)	Mar. 31, 2016USD ($)
Financing Receivable, Impaired [Line Items]
Number of loan portfolio | Segment	3
Number of loan portfolio class | Class	5
Financing receivable, recorded investment, nonaccrual status | SecurityLoan	4
Nonaccrual Loans	$ 805,000	$ 811,000
Impaired Loans [Member] | Collateral Pledged [Member]
Financing Receivable, Impaired [Line Items]
Loans measured at fair value on a nonrecurring basis	0		$ 0
Minimum [Member]
Financing Receivable, Impaired [Line Items]
Impairment valuation loan limit	$ 500,000
Minimum [Member] | Loans Receivable [Member]
Financing Receivable, Impaired [Line Items]
Maturity period of loan	1 year
Maximum [Member] | Loans Receivable [Member]
Financing Receivable, Impaired [Line Items]
Maturity period of loan	10 years
Real Estate Mortgage Loans [Member]
Financing Receivable, Impaired [Line Items]
Number of loan portfolio class | Class	3
Commercial Loans [Member]
Financing Receivable, Impaired [Line Items]
Description of interest rate of loans	Equipment loans generally have a term of five years or less and may have a fixed or variable rate
Commercial Loans [Member] | Period 1 [Member]
Financing Receivable, Impaired [Line Items]
Period of portfolio mortgage adjustable rate	1 year
Period of secondary market mortgage fixed rate	15 years
Commercial Loans [Member] | Period 2 [Member]
Financing Receivable, Impaired [Line Items]
Period of portfolio mortgage adjustable rate	3 years
Period of secondary market mortgage fixed rate	30 years
Commercial Loans [Member] | Period 3 [Member]
Financing Receivable, Impaired [Line Items]
Period of portfolio mortgage adjustable rate	5 years
Commercial Loans [Member] | Period 4 [Member]
Financing Receivable, Impaired [Line Items]
Period of portfolio mortgage adjustable rate	7 years
Commercial Loans [Member] | Minimum [Member]
Financing Receivable, Impaired [Line Items]
Maturity period of loan	3 years
Commercial Loans [Member] | Maximum [Member]
Financing Receivable, Impaired [Line Items]
Maturity period of loan	5 years
Construction Real Estate Mortgage Loans [Member] | Minimum [Member]
Financing Receivable, Impaired [Line Items]
Maturity period of loan	1 year
Construction Real Estate Mortgage Loans [Member] | Maximum [Member]
Financing Receivable, Impaired [Line Items]
Maturity period of loan	2 years

Loans - Summary of Loan Credit

Loans - Summary of Loan Credit Quality (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	$ 228,270	$ 225,294
Mortgage Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	178,074	174,679
Mortgage Receivable [Member] | Commercial Real Estate Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	65,488	65,805
Mortgage Receivable [Member] | Residential and Home Equity Real Estate Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	89,877	88,883
Mortgage Receivable [Member] | Construction Real Estate Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	22,709	19,991
Loans and Finance Receivables [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	45,607	46,340
Loans and Finance Receivables [Member] | Consumer and Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	4,589	4,275
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	218,332	215,764
Pass [Member] | Mortgage Receivable [Member] | Commercial Real Estate Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	61,458	61,734
Pass [Member] | Mortgage Receivable [Member] | Residential and Home Equity Real Estate Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	85,335	84,695
Pass [Member] | Mortgage Receivable [Member] | Construction Real Estate Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	22,158	19,485
Pass [Member] | Loans and Finance Receivables [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	44,840	45,623
Pass [Member] | Loans and Finance Receivables [Member] | Consumer and Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	4,541	4,227
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	8,273	7,852
Special Mention [Member] | Mortgage Receivable [Member] | Commercial Real Estate Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	4,030	4,071
Special Mention [Member] | Mortgage Receivable [Member] | Residential and Home Equity Real Estate Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	3,507	3,152
Special Mention [Member] | Mortgage Receivable [Member] | Construction Real Estate Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	371	333
Special Mention [Member] | Loans and Finance Receivables [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	319	250
Special Mention [Member] | Loans and Finance Receivables [Member] | Consumer and Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	46	46
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	1,665	1,678
Substandard [Member] | Mortgage Receivable [Member] | Residential and Home Equity Real Estate Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	1,035	1,036
Substandard [Member] | Mortgage Receivable [Member] | Construction Real Estate Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	180	173
Substandard [Member] | Loans and Finance Receivables [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	448	467
Substandard [Member] | Loans and Finance Receivables [Member] | Consumer and Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	$ 2	$ 2

Loans - Summary of Past Due Loa

Loans - Summary of Past Due Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing Loans Total Past Due	$ 32	$ 371
Current	227,433	224,112
Nonaccrual Loans	805	811
Total Loans	228,270	225,294
30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing Loans Total Past Due	32	371
Mortgage Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	178,074	174,679
Mortgage Receivable [Member] | Commercial Real Estate Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	65,488	65,805
Total Loans	65,488	65,805
Mortgage Receivable [Member] | Residential and Home Equity Real Estate Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing Loans Total Past Due		371
Current	89,214	87,850
Nonaccrual Loans	663	662
Total Loans	89,877	88,883
Mortgage Receivable [Member] | Residential and Home Equity Real Estate Mortgage Loans [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing Loans Total Past Due		371
Mortgage Receivable [Member] | Construction Real Estate Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	22,636	19,918
Nonaccrual Loans	73	73
Total Loans	22,709	19,991
Loans and Finance Receivables [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing Loans Total Past Due	32
Current	45,506	46,264
Nonaccrual Loans	69	76
Total Loans	45,607	46,340
Loans and Finance Receivables [Member] | Commercial Loans [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing Loans Total Past Due	32
Loans and Finance Receivables [Member] | Consumer and Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	4,589	4,275
Total Loans	$ 4,589	$ 4,275

Loans - Summary of Impaired Loa

Loans - Summary of Impaired Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Related Allowance	$ 69	$ 76
Loans and Finance Receivables [Member]
Financing Receivable, Impaired [Line Items]
With No Related Allowing Recorded Investment	736	735
With No Related Allowing Unpaid Contractual Principal Balance	736	735
With an Allowance Recorded Investment	69	76
With an Allowance Recorded Unpaid Contractual Principal Balance	69	76
With an Allowance Recorded Related Allowance	69	76
Recorded Investment	805	811
Unpaid Contractual Principal Balance	805	811
Related Allowance	69	76
Loans and Finance Receivables [Member] | Residential and Home Equity Real Estate Mortgage Loans [Member]
Financing Receivable, Impaired [Line Items]
With No Related Allowing Recorded Investment	663	662
With No Related Allowing Unpaid Contractual Principal Balance	663	662
Recorded Investment	663	662
Unpaid Contractual Principal Balance	663	662
Loans and Finance Receivables [Member] | Construction Real Estate Mortgage Loans [Member]
Financing Receivable, Impaired [Line Items]
With No Related Allowing Recorded Investment	73	73
With No Related Allowing Unpaid Contractual Principal Balance	73	73
Recorded Investment	73	73
Unpaid Contractual Principal Balance	73	73
Loans and Finance Receivables [Member] | Commercial Loans [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Investment	69	76
With an Allowance Recorded Unpaid Contractual Principal Balance	69	76
With an Allowance Recorded Related Allowance	69	76
Recorded Investment	69	76
Unpaid Contractual Principal Balance	69	76
Related Allowance	$ 69	$ 76

Loans - Summary of Average Net

Loans - Summary of Average Net Investment in Impaired Loans and Interest Income Recognized and Received on Impaired Loans (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 797	$ 146
Interest Income Recognized		1
Interest Income Received	1	1
Residential and Home Equity Real Estate Mortgage Loans [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	650
Construction Real Estate Mortgage Loans [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	74
Loans and Finance Receivables [Member] | Commercial Loans [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	73	146
Interest Income Recognized		1
Interest Income Received	$ 1	$ 1

Regulatory Capital - Additional

Regulatory Capital - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2017
Regulatory Capital Requirements [Abstract]
Percentage of capital conservation buffer minimum risk-based capital requirement	1.25%
Capital conservation buffer phase period	3 years

Regulatory Capital - Summary of

Regulatory Capital - Summary of Regulatory Capital Requirements and Bank's Capital Position (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Banking and Thrift [Abstract]
Tier 1 Leverage Capital, Actual amount	$ 26,612	$ 25,994
Tier 1 Leverage Capital Ratio, Actual Percentage	8.65%	8.73%
Tier 1 Leverage Capital, For Capital Adequacy Purposes, Amount	$ 12,300	$ 11,906
Tier 1 Leverage Capital Ratio, For Capital Adequacy Purposes, Percentage	4.00%	4.00%
Tier 1 Leverage Capital, For Well Capitalized Purposes, Amount	$ 15,375	$ 14,883
Tier 1 Leverage Capital Ratio, For Well Capitalized Purposes, Percentage	5.00%	5.00%
Common Equity Tier 1 Risk-Based Capital Ratio, Actual Amount	$ 26,612	$ 25,994
Common Equity Tier 1 Risk-Based Capital Ratio, Actual Percentage	11.54%	11.70%
Common Equity Tier 1 Risk-Based Capital Ratio, For Capital Adequacy Purposes, Amount	$ 10,375	$ 9,995
Common Equity Tier 1 Risk-Based Capital Ratio, For Capital Adequacy Purposes, Percentage	4.50%	4.50%
Common Equity Tier 1 Risk-Based Capital Ratio, For Well Capitalized Purposes, Amount	$ 14,986	$ 14,437
Common Equity Tier 1 Risk-Based Capital Ratio, For Well Capitalized Purposes, Percentage	6.50%	6.50%
Tier 1 Risk-Based Capital, Actual Amount	$ 26,612	$ 25,994
Tier 1 Risk-Based Capital Ratio, Actual Percentage	11.54%	11.70%
Tier 1 Risk-Based Capital, For Capital Adequacy Purposes, Amount	$ 13,833	$ 13,326
Tier 1 Risk-Based Capital Ratio, For Capital Adequacy Purposes, Percentage	6.00%	6.00%
Tier 1 Risk-Based Capital, For Well Capitalized Purposes, Amount	$ 18,444	$ 17,769
Common Equity Tier 1 Risk-Based Capital Ratio, For Well Capitalized Purposes, Percentage	8.00%	8.00%
Total Risk-Based Capital, Actual Amount	$ 29,494	$ 28,772
Total Risk-Based Capital Ratio, Actual Percentage	12.79%	12.95%
Total Risk-Based Capital, For Capital Adequacy Purposes, Amount	$ 18,444	$ 17,769
Total Risk-Based Capital Ratio, For Capital Adequacy Purposes, Percentage	8.00%	8.00%
Total Risk-Based Capital, For Well Capitalized Purposes, Amount	$ 23,055	$ 22,211
Total Risk-Based Capital Ratio, For Well Capitalized Purposes, Percentage	10.00%	10.00%

Earnings Per Share - Computatio

Earnings Per Share - Computation of Basic and Diluted Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share [Abstract]
Earnings	$ 536	$ 382
Earnings	$ 536	$ 382
Weighted-Average Shares	2,005,868	1,975,972
Effect of dilutive securities-Incremental shares from assumed conversion of options	3,288	3,871
Weighted-Average Shares	2,009,156	1,979,843
Per Share Amount	$ 0.27	$ 0.19
Per Share Amount	$ 0.27	$ 0.19

Stock Option Plans - Additional

Stock Option Plans - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 15,000
Common stock issued as compensation to directors, value	$ 19,000	$ 10,000
2015 Stock Incentive Compensation Plan [Member] | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares to be issued under stock option plan	500,000
Number of shares issued under stock option plan	0
Maximum percentage of shares issued	15.00%
Shares granted	11,540
Unrecognized compensation expense related to nonvested share-based compensation arrangements granted	$ 0
Directors Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares to be issued under stock option plan	74,805
Shares granted	1,273
Stock consideration on percentage of common stock received upon cash fees	110.00%
Common stock issued as compensation to directors, value	$ 18,728
Shares available for grant	60,741

Stock Option Plans - Summary of

Stock Option Plans - Summary of Stock Option Activity (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017
2015 Stock Incentive Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-Average Exercise Price, Options granted	$ 17.03
Number of Options, granted	11,540
Weighted-Average Exercise Price, Outstanding beginning balance	$ 17.03		$ 17.03
Number of Options, Outstanding ending balance	11,540
Number of Options, Exercisable ending balance			11,540
Weighted-Average Exercise Price, Outstanding ending balance	$ 17.03
Weighted-Average Exercise Price, Exercisable			$ 17.03
Weighted-Average Remaining Contractual Term, Outstanding	4 years 10 months 2 days
Weighted-Average Remaining Contractual Term, Exercisable	4 years 10 months 2 days
Aggregate Intrinsic Value, Exercisable			$ 10,040
2007 Incentive Award Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Options, Outstanding beginning balance	42,200	75,500
Number of Options, exercised	(200)
Weighted-Average Exercise Price, Outstanding beginning balance	$ 10.16	$ 10.19	$ 10.16
Number of Options, forfeited	(200)
Number of Options, Outstanding ending balance	41,800	75,500
Number of Options, Exercisable ending balance			41,300
Weighted-Average Exercise Price, Outstanding beginning balance	$ 10.16	$ 10.19
Weighted-Average Exercise Price, Options exercised	10
Weighted-Average Exercise Price, Options forfeited	10
Weighted-Average Exercise Price, Outstanding ending balance	$ 10.16	$ 10.19
Weighted-Average Exercise Price, Exercisable			$ 10.16
Weighted-Average Remaining Contractual Term, Outstanding	2 years 1 month 28 days
Weighted-Average Remaining Contractual Term, Exercisable	2 years 1 month 13 days
Aggregate Intrinsic Value, Exercisable			$ 320,000

Stock Option Plans - Black-Scho

Stock Option Plans - Black-Scholes Option-Pricing Model Assumptions (Detail)	Feb. 01, 2017$ / shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Weighted average risk-free interest rate	1.48%
Expected dividend yield	0.00%
Expected stock volatility	8.54%
Expected life in years	3 years
Per share fair value of options issued during period	$ 1.26

Federal Home Loan Bank Advanc45

Federal Home Loan Bank Advances - Additional Information (Detail) - USD ($)	Mar. 31, 2017	Dec. 31, 2016
Advances from Federal Home Loan Banks [Abstract]
Maximum borrowing capacity under FHLB	$ 29,600,000
Outstanding advances under FHLB	$ 0	$ 0

Fair Value of Financial Instr46

Fair Value of Financial Instruments - Schedule of Carrying Amounts and Estimated Fair Values of Financial Instruments (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 35,200	$ 36,165	$ 18,779	$ 8,429
Securities available for sale	42,950	33,103
Loans held for sale	2,695	3,291
Loans, net	225,742	222,768
Federal Home Loan Bank stock	274	220
Accrued interest receivable	782	798
Bank-owned life insurance	1,723	1,711
Deposits	286,249	275,347
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	42,950	33,103
Estimated Fair Value [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	35,200	36,165
Estimated Fair Value [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	42,950	33,103
Estimated Fair Value [Member] | Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for sale	2,745	3,500
Loans, net	222,261	221,320
Federal Home Loan Bank stock	274	220
Accrued interest receivable	782	798
Bank-owned life insurance	1,723	1,711
Deposits	286,420	275,433
Off Balance Sheet Items	0	0
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	35,200	36,165
Securities available for sale	42,950	33,103
Loans held for sale	2,695	3,291
Loans, net	225,742	222,768
Federal Home Loan Bank stock	274	220
Accrued interest receivable	782	798
Bank-owned life insurance	1,723	1,711
Deposits	286,249	275,347
Off Balance Sheet Items	$ 0	$ 0

Off-Balance-Sheet Financial Ins

Off-Balance-Sheet Financial Instruments - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2017USD ($)
Standby Financial Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Debt instrument maturity period	1 year
Collateral amount	$ 834,000
Contractual amounts with off-balance-sheet risk	$ 1,884,000
Standby Financial Letters of Credit [Member] | Credit Availability Concentration Risk [Member] | Swap Liabilities [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Percentage of additional credit limit guaranteed	10.00%
Swap Participation Agreement [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with off-balance-sheet risk	$ 74,000
Swap Participation Agreement [Member] | Credit Availability Concentration Risk [Member] | Swap Liabilities [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Percentage of additional credit limit guaranteed	13.208%

Off-Balance-Sheet Financial I48

Off-Balance-Sheet Financial Instruments - Summary of Maximum Potential Amount of Future Payments (Detail)	3 Months Ended
	Mar. 31, 2017USD ($)
Commitments to Extend Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with off-balance-sheet risk	$ 4,752,000
Construction Loans in Process [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with off-balance-sheet risk	9,441,000
Unused Lines of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with off-balance-sheet risk	36,300,000
Standby Financial Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with off-balance-sheet risk	1,884,000
Guaranteed Accounts [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts with off-balance-sheet risk	$ 452,000