First National (FXNC) 10-Q 9 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	May 09, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Trading Symbol	FXNC
Entity Registrant Name	FIRST NATIONAL CORP /VA/
Entity Central Index Key	0000719402
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Accelerated Filer
Entity Common Stock, Shares Outstanding		4,963,487

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	[1]
Assets
Cash and due from banks	$ 10,862	$ 13,378
Interest-bearing deposits in banks	31,833	15,240
Securities available for sale, at fair value	121,202	99,857
Securities held to maturity, at amortized cost (fair value, 2019, $19,190; 2018, $42,394)	19,489	43,408
Restricted securities, at cost	1,701	1,688
Loans held for sale	200	419
Loans, net of allowance for loan losses, 2019, $4,946; 2018, $5,009	545,529	537,847
Premises and equipment, net	20,282	20,066
Accrued interest receivable	2,143	2,113
Bank owned life insurance	17,094	13,991
Core deposit intangibles, net	382	472
Other assets	4,361	4,490
Total assets	775,078	752,969
Deposits:
Noninterest-bearing demand deposits	189,261	181,964
Savings and interest-bearing demand deposits	377,673	369,383
Time deposits	117,290	119,219
Total deposits	684,224	670,566
Other borrowings	5,000	0
Subordinated debt	4,969	4,965
Junior subordinated debt	9,279	9,279
Accrued interest payable and other liabilities	1,878	1,485
Total liabilities	705,350	686,295
Shareholders’ Equity
Preferred stock, par value $1.25 per share; authorized 1,000,000 shares; none issued and outstanding	0	0
Common stock, par value $1.25 per share; authorized 8,000,000 shares; issued and outstanding, 2019, 4,963,487 shares; 2018, 4,957,694 shares	6,204	6,197
Surplus	7,515	7,471
Retained earnings	56,629	54,814
Accumulated other comprehensive loss, net	(620)	(1,808)
Total shareholders’ equity	69,728	66,674
Total liabilities and shareholders’ equity	$ 775,078	$ 752,969
[1]	Derived from audited consolidated financial statements.

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	[1]
Statement of Financial Position [Abstract]
Securities held to maturity	$ 19,190	$ 42,394
Allowance for loan losses	$ 4,946	$ 5,009
Preferred stock, par value (in usd per share)	$ 1.25	$ 1.25
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in usd per share)	$ 1.25	$ 1.25
Common stock, shares authorized (in shares)	8,000,000	8,000,000
Common stock, shares issued (in shares)	4,963,487	4,957,694
Common stock, shares outstanding (in shares)	4,963,487	4,957,694
[1]	Derived from audited consolidated financial statements.

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Interest and Dividend Income
Interest and fees on loans	$ 6,996	$ 6,305
Interest on deposits in banks	110	160
Interest and dividends on securities:
Taxable interest	737	680
Tax-exempt interest	156	145
Dividends	24	22
Total interest and dividend income	8,023	7,312
Interest Expense
Interest on deposits	922	590
Interest on subordinated debt	89	89
Interest on junior subordinated debt	111	86
Interest on other borrowings	2	0
Total interest expense	1,124	765
Net interest income	6,899	6,547
Provision for loan losses	0	100
Net interest income after provision for loan losses	6,899	6,447
Noninterest Income
Service charges on deposit accounts	701	762
ATM and check card fees	517	519
Wealth management fees	437	407
Fees for other customer services	175	153
Income from bank owned life insurance	103	559
Net gains on sale of loans	22	9
Other operating income	30	224
Total noninterest income	1,985	2,633
Noninterest Expense
Salaries and employee benefits	3,443	3,383
Occupancy	438	400
Equipment	420	423
Marketing	141	109
Supplies	73	80
Legal and professional fees	241	191
ATM and check card expense	216	203
FDIC assessment	69	82
Bank franchise tax	130	115
Telecommunications expense	83	36
Data processing expense	173	162
Postage expense	48	61
Amortization expense	90	131
Other real estate owned income, net	0	(23)
Other operating expense	533	513
Total noninterest expense	6,098	5,866
Income before income taxes	2,786	3,214
Income tax expense	525	527
Net income	$ 2,261	$ 2,687
Earnings per common share
Basic (in usd per share)	$ 0.46	$ 0.54
Diluted (in usd per share)	$ 0.46	$ 0.54

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 2,261	$ 2,687
Other comprehensive income (loss), net of tax,
Unrealized holding gains (losses) on available for sale securities, net of tax $407 and ($229), respectively	1,528	(862)
Unrealized holding losses on securities transferred from held to maturity to available for sale, net of tax ($91) and $0, respectively	(340)	0
Pension liability adjustment, net of tax $0 and ($27), respectively	0	(99)
Total other comprehensive income (loss)	1,188	(961)
Total comprehensive income	$ 3,449	$ 1,726

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Unrealized holding gains (losses) on available for sale securities, tax	$ 407	$ (229)
Unrealized holding losses on securities transferred from held to maturity to available for sale, tax	(91)	0
Pension liability adjustment, tax	$ 0	$ (27)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Cash Flows from Operating Activities
Net income	$ 2,261	$ 2,687
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of premises and equipment	337	345
Amortization of core deposit intangibles	90	131
Amortization of debt issuance costs	4	4
Origination of loans held for sale	(1,602)	(192)
Proceeds from sale of loans held for sale	1,843	571
Net gains on sales of loans held for sale	(22)	(9)
Provision for loan losses	0	100	$ 600
Net gains on sale of other real estate owned	0	(24)
Increase in cash value of bank owned life insurance	(103)	(91)
Accretion of discounts and amortization of premiums on securities, net	138	138
Accretion of premium on time deposits	(16)	(22)
Stock-based compensation	43	70
Excess tax benefits on stock-based compensation	(2)	(7)
Deferred income tax (benefit) expense	(16)	37
Changes in assets and liabilities:
(Increase) decrease in interest receivable	(30)	47
(Increase) decrease in other assets	(170)	1,394
Increase (decrease) in accrued expenses and other liabilities	394	(743)
Net cash provided by operating activities	3,149	4,436
Cash Flows from Investing Activities
Proceeds from maturities, calls, and principal payments of securities available for sale	3,990	3,052
Proceeds from maturities, calls, and principal payments of securities held to maturity	452	1,368
Purchases of securities available for sale	(502)	(8,676)
Net purchase of restricted securities	(13)	(20)
Purchase of premises and equipment	(553)	(287)
Proceeds from sale of other real estate owned	0	350
Purchase of bank owned life insurance	(3,000)	0
Proceeds from cash value of bank owned life insurance	0	347
Net (increase) decrease in loans	(7,682)	1,111
Net cash used in investing activities	(7,308)	(2,755)
Cash Flows from Financing Activities
Net increase in demand deposits and savings accounts	15,587	25,461
Net (decrease) increase in time deposits	(1,913)	2,406
Net increase in other borrowings	5,000	0
Cash dividends paid on common stock, net of reinvestment	(418)	(233)
Repurchase of common stock	(20)	(24)
Net cash provided by financing activities	18,236	27,610
Increase in cash and cash equivalents	14,077	29,291
Cash and Cash Equivalents
Beginning	28,618	39,986	39,986
Ending	42,695	69,277	$ 28,618
Cash payments for:
Interest	1,123	779
Supplemental Disclosures of Noncash Investing and Financing Activities
Unrealized gains (losses) on securities available for sale	1,935	(1,091)
Unrealized losses on securities transferred from held to maturity to available for sale	(431)	0
Fair value of securities transferred from held to maturity to available for sale	23,036	0
Change in pension liability	0	(126)
Issuance of common stock, dividend reinvestment plan	$ 28	$ 15

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total		Common Stock	Surplus	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning Balance at Dec. 31, 2017	$ 58,154		$ 6,182	$ 7,260	$ 45,670	$ (958)
Net income	2,687				2,687
Other comprehensive income (loss)	(961)					(961)
Cash dividends on common stock	(248)				(248)
Stock-based compensation	70			70
Issuance of common stock, dividend reinvestment plan	15		1	14
Issuance of common stock, stock incentive plan	0		9	(9)
Repurchase of common stock, stock incentive plan	(24)		(1)	(23)
Ending Balance at Mar. 31, 2018	59,693		6,191	7,312	48,109	(1,919)
Beginning Balance at Dec. 31, 2018	66,674	[1]	6,197	7,471	54,814	(1,808)
Net income	2,261				2,261
Other comprehensive income (loss)	1,188					1,188
Cash dividends on common stock	(446)				(446)
Stock-based compensation	43			43
Issuance of common stock, dividend reinvestment plan	28		2	26
Issuance of common stock, stock incentive plan	0		7	(7)
Repurchase of common stock, stock incentive plan	(20)		(2)	(18)
Ending Balance at Mar. 31, 2019	$ 69,728		$ 6,204	$ 7,515	$ 56,629	$ (620)
[1]	Derived from audited consolidated financial statements.

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Stockholders' Equity [Abstract]
Cash dividends on common stock, per share (in usd per share)	$ 0.09	$ 0.05
Issuance of common stock dividend reinvestment plan, shares (in shares)	1,397	851
Issuance of common stock incentive plan, shares (in shares)	5,402	7,339
Repurchase of common stock incentive plan, shares (in shares)	1,006	1,317

General

General	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
General	General The accompanying unaudited consolidated financial statements of First National Corporation (the Company) and its subsidiary, First Bank (the Bank), have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) for interim financial information. Accordingly, they do not include all of the information and footnotes required by GAAP. All significant intercompany balances and transactions have been eliminated. In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments and reclassifications of a normal and recurring nature considered necessary to present fairly the financial positions at March 31, 2019 and December 31, 2018 , the statements of income and comprehensive income for the three months ended March 31, 2019 and 2018 and the cash flows and changes in shareholders’ equity for the three months ended March 31, 2019 and 2018 . The statements should be read in conjunction with the consolidated financial statements and related notes included in the Annual Report on Form 10-K for the year ended December 31, 2018 . Operating results for the three months ended March 31, 2019 are not necessarily indicative of the results that may be expected for the year ending December 31, 2019 . Adoption of New Accounting Standards On January 1, 2019, the Company adopted ASU No. 2016-02, “Leases (Topic 842).” Among other things, in the amendments in ASU 2016-02, lessees are required to recognize the following for all leases (with the exception of short-term leases) at the commencement date: (1) A lease liability, which is a lessee‘s obligation to make lease payments arising from a lease, measured on a discounted basis; and (2) A right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Under the new guidance, lessor accounting is largely unchanged. Certain targeted improvements were made to align, where necessary, lessor accounting with the lessee accounting model and Topic 606, Revenue from Contracts with Customers. Lessees (for capital and operating leases) and lessors (for sales-type, direct financing, and operating leases) must apply a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The modified retrospective approach does not require any transition accounting for leases that expired before the earliest comparative period presented. Lessees and lessors may not apply a full retrospective transition approach. The FASB made subsequent amendments to Topic 842 through ASU 2018-10 (“Codification Improvements to Topic 842, Leases.”) and ASU 2018-11 (“Leases (Topic 842): Targeted Improvements.”) Among these amendments is the provision in ASU 2018-11 that provides entities with an additional (and optional) transition method to adopt the new leases standard. Under this new transition method, an entity initially applies the new leases standard at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, an entity’s reporting for the comparative periods presented in the financial statements in which it adopts the new leases standard will continue to be in accordance with current GAAP (Topic 840, Leases). The adoption of this standard did not have a material effect on the Company's consolidated financial statements. For further information about the Company's leases, see Note 16. On January 1, 2019, the Company adopted ASU No. 2017-08, "Receivables—Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities.” The amendments in ASU 2017-08 shorten the amortization period for certain callable debt securities purchased at a premium. Under the new guidance, premiums on these qualifying callable debt securities are amortized to the earliest call date. Discounts on purchased debt securities continue to be accreted to maturity. The adoption of this standard did not have a material effect on the Company's consolidated financial statements and no cumulative effect adjustment was recorded. On January 1, 2019, the Company adopted ASU No. 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities." The amendments in ASU 2017-12 modify the designation and measurement guidance for hedge accounting as well as provide for increased transparency regarding the presentation of economic results on both the financial statements and related footnotes. Certain aspects of hedge effectiveness assessments were simplified upon implementation of this updated. The new guidance also provides for a reclassification of certain debt securities from held to maturity to available for sale if the security is eligible to be hedged using the last-of-layer method. Any unrealized gain or loss existing at the time of transfer is recorded in accumulated comprehensive income or loss. As a permitted activity, the reclassification of securities will not taint future held to maturity classification so long as the securities transferred are eligible to be hedged under the last-of-layer method. Accordingly, on January 1, 2019, the Company reclassified eligible held to maturity securities with amortized costs totaling $23.4 million as available for sale. The unrealized loss associated with the reclassified securities totaled $431 thousand and was included in the Company's accumulated other comprehensive loss on the date of reclassification. Recent Accounting Pronouncements In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” The amendments in this ASU, among other things, require the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Financial institutions and other organizations will now use forward-looking information to better inform their credit loss estimates. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. In addition, the ASU amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. The amendments in this ASU are effective for SEC filers for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. The Company is currently assessing the impact that ASU 2016-13 will have on its consolidated financial statements. The Company has formed a committee to address the compliance requirements of this ASU, which has analyzed gathered data, definined loan pools and segments, and selected methods for applying the concepts included in this ASU. The Company is in the process of testing selected models, building policy and processing documentation, modeling the impact of the ASU on the capital and strategic plans, performing model validation, and finalizing policies and procedures. This guidance may result in material changes in the Company's accounting for credit losses of financial instruments.

Securities

Securities	3 Months Ended
	Mar. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Securities	Securities The Company invests in U.S. agency and mortgage-backed securities, obligations of state and political subdivisions, and corporate debt securities. Amortized costs and fair values of securities at March 31, 2019 and December 31, 2018 were as follows (in thousands): March 31, 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized (Losses) Fair Value Securities available for sale: U.S. agency and mortgage-backed securities $ 96,345 $ 295 $ (1,074 ) $ 95,566 Obligations of states and political subdivisions 25,643 153 (160 ) 25,636 Total securities available for sale $ 121,988 $ 448 $ (1,234 ) $ 121,202 Securities held to maturity: U.S. agency and mortgage-backed securities $ 14,193 $ — $ (332 ) $ 13,861 Obligations of states and political subdivisions 3,796 22 (2 ) 3,816 Corporate debt securities 1,500 13 — 1,513 Total securities held to maturity $ 19,489 $ 35 $ (334 ) $ 19,190 Total securities $ 141,477 $ 483 $ (1,568 ) $ 140,392 December 31, 2018 Amortized Cost Gross Unrealized Gains Gross Unrealized (Losses) Fair Value Securities available for sale: U.S. agency and mortgage-backed securities $ 86,944 $ 44 $ (2,066 ) $ 84,922 Obligations of states and political subdivisions 15,203 31 (299 ) 14,935 Total securities available for sale $ 102,147 $ 75 $ (2,365 ) $ 99,857 Securities held to maturity: U.S. agency and mortgage-backed securities $ 27,420 $ — $ (869 ) $ 26,551 Obligations of states and political subdivisions 14,488 20 (174 ) 14,334 Corporate debt securities 1,500 9 — 1,509 Total securities held to maturity $ 43,408 $ 29 $ (1,043 ) $ 42,394 Total securities $ 145,555 $ 104 $ (3,408 ) $ 142,251 At March 31, 2019 and December 31, 2018 , investments in an unrealized loss position that were temporarily impaired were as follows (in thousands): March 31, 2019 Less than 12 months 12 months or more Total Fair Value Unrealized (Loss) Fair Value Unrealized (Loss) Fair Value Unrealized (Loss) Securities available for sale: U.S. agency and mortgage-backed securities $ 369 $ (2 ) $ 60,381 $ (1,072 ) $ 60,750 $ (1,074 ) Obligations of states and political subdivisions — — 8,793 (160 ) 8,793 (160 ) Total securities available for sale $ 369 $ (2 ) $ 69,174 $ (1,232 ) $ 69,543 $ (1,234 ) Securities held to maturity: U.S. agency and mortgage-backed securities $ — $ — $ 13,861 $ (332 ) $ 13,861 $ (332 ) Obligations of states and political subdivisions — — 761 (2 ) 761 (2 ) Total securities held to maturity $ — $ — $ 14,622 $ (334 ) $ 14,622 $ (334 ) Total securities $ 369 $ (2 ) $ 83,796 $ (1,566 ) $ 84,165 $ (1,568 ) December 31, 2018 Less than 12 months 12 months or more Total Fair Value Unrealized (Loss) Fair Value Unrealized (Loss) Fair Value Unrealized (Loss) Securities available for sale: U.S. agency and mortgage-backed securities $ 26,350 $ (215 ) $ 49,652 $ (1,851 ) $ 76,002 $ (2,066 ) Obligations of states and political subdivisions 3,761 (25 ) 5,127 (274 ) 8,888 (299 ) Total securities available for sale $ 30,111 $ (240 ) $ 54,779 $ (2,125 ) $ 84,890 $ (2,365 ) Securities held to maturity: U.S. agency and mortgage-backed securities $ — $ — $ 26,551 $ (869 ) $ 26,551 $ (869 ) Obligations of states and political subdivisions 5,326 (37 ) 6,115 (137 ) 11,441 (174 ) Total securities held to maturity $ 5,326 $ (37 ) $ 32,666 $ (1,006 ) $ 37,992 $ (1,043 ) Total securities $ 35,437 $ (277 ) $ 87,445 $ (3,131 ) $ 122,882 $ (3,408 ) The tables above provide information about securities that have been in an unrealized loss position for less than twelve consecutive months and securities that have been in an unrealized loss position for twelve consecutive months or more. Management evaluates securities for other-than-temporary impairment at least on a quarterly basis, and more frequently when economic or market concerns warrant such evaluation. Impairment is considered to be other-than-temporary if the Company (1) intends to sell the security, (2) more likely than not will be required to sell the security before recovering its cost, or (3) does not expect to recover the security’s entire amortized cost basis. Presently, the Company does not intend to sell any of these securities, does not expect to be required to sell these securities, and expects to recover the entire amortized cost of all the securities. At March 31, 2019 , there were sixty-six out of ninety U.S. agency and mortgage-backed securities and twenty-six out of eighty-two obligations of states and political subdivisions in an unrealized loss position. One hundred percent of the Company’s investment portfolio is considered investment grade. The weighted-average re-pricing term of the portfolio was 4.2 years at March 31, 2019 . At December 31, 2018 , there were eighty-three out of ninety U.S. agency and mortgage-backed securities and fifty-six out of eighty-two obligations of states and political subdivisions in an unrealized loss position. One hundred percent of the Company’s investment portfolio was considered investment grade at December 31, 2018 . The weighted-average re-pricing term of the portfolio was 4.6 years at December 31, 2018 . The unrealized losses at March 31, 2019 in the U.S. agency and mortgage-backed securities portfolio and the obligations of states and political subdivisions portfolio were related to changes in market interest rates and not credit concerns of the issuers. The amortized cost and fair value of securities at March 31, 2019 by contractual maturity are shown below (in thousands). Expected maturities of mortgage-backed securities will differ from contractual maturities because borrowers may have the right to prepay obligations with or without call or prepayment penalties. Available for Sale Held to Maturity Amortized Cost Fair Value Amortized Cost Fair Value Due within one year $ 1,836 $ 1,844 $ 185 $ 185 Due after one year through five years 9,009 8,992 4,179 4,159 Due after five years through ten years 27,051 27,048 4,586 4,565 Due after ten years 84,092 83,318 10,539 10,281 $ 121,988 $ 121,202 $ 19,489 $ 19,190 On January 1, 2019, the Company adopted ASU No. 2017-12 and reclassified eligible securities with a fair value of $23.0 million from the held to maturity portfolio to the available for sale portfolio. The unrealized loss associated with the reclassified securities totaled $431 thousand on the date of reclassification. The securities were reclassified to provide the Company with opportunities to maximize asset utilization. Federal Home Loan Bank, Federal Reserve Bank, and Community Bankers’ Bank stock are generally viewed as long-term investments and as restricted securities, which are carried at cost, because there is a minimal market for the stock. Therefore, when evaluating restricted securities for impairment, their value is based on the ultimate recoverability of the par value rather than by recognizing temporary declines in value. The Company does not consider these investments to be other-than-temporarily impaired at March 31, 2019 , and no impairment has been recognized. The composition of restricted securities at March 31, 2019 and December 31, 2018 was as follows (in thousands): March 31, December 31, Federal Home Loan Bank stock $ 776 $ 763 Federal Reserve Bank stock 875 875 Community Bankers’ Bank stock 50 50 $ 1,701 $ 1,688

Loans

Loans	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
Loans	Loans Loans at March 31, 2019 and December 31, 2018 are summarized as follows (in thousands): March 31, December 31, Real estate loans: Construction and land development $ 48,948 $ 45,867 Secured by 1-4 family residential 217,527 215,945 Other real estate loans 221,396 219,553 Commercial and industrial loans 46,045 44,605 Consumer and other loans 16,559 16,886 Total loans $ 550,475 $ 542,856 Allowance for loan losses (4,946 ) (5,009 ) Loans, net $ 545,529 $ 537,847 Net deferred loan fees included in the above loan categories were $287 thousand and $274 thousand at March 31, 2019 and December 31, 2018 , respectively. Consumer and other loans included $204 thousand and $275 thousand of demand deposit overdrafts at March 31, 2019 and December 31, 2018 , respectively. Risk characteristics of each loan portfolio class that are considered by the Company include: • 1-4 family residential mortgage loans carry risks associated with the continued creditworthiness of the borrower and changes in the value of the collateral. • Real estate construction and land development loans carry risks that the project may not be finished according to schedule, the project may not be finished according to budget, and the value of the collateral may, at any point in time, be less than the principal amount of the loan. Construction loans also bear the risk that the general contractor, who may or may not be a loan customer, may be unable to finish the construction project as planned because of financial pressure or other factors unrelated to the project. • Other real estate loans carry risks associated with the successful operation of a business or a real estate project, in addition to other risks associated with the ownership of real estate, because repayment of these loans may be dependent upon the profitability and cash flows of the business or project. • Commercial and industrial loans carry risks associated with the successful operation of a business because repayment of these loans may be dependent upon the profitability and cash flows of the business. In addition, there is risk associated with the value of collateral other than real estate which may depreciate over time and cannot be appraised with as much reliability. • Consumer and other loans carry risk associated with the continued creditworthiness of the borrower and the value of the collateral, if any. These loans are typically either unsecured or secured by rapidly depreciating assets such as automobiles. They are also likely to be immediately and adversely affected by job loss, divorce, illness, personal bankruptcy, or other changes in circumstances. Consumer and other loans also include purchased consumer loans which could have been originated outside of the Company's market area. The following tables provide a summary of loan classes and an aging of past due loans as of March 31, 2019 and December 31, 2018 (in thousands): March 31, 2019 30-59 Days Past Due 60-89 Days Past Due > 90 Days Past Due Total Past Due Current Total Loans Non-accrual Loans 90 Days or More Past Due and Accruing Real estate loans: Construction and land development $ — $ — $ 80 $ 80 $ 48,868 $ 48,948 $ 398 $ — Secured by 1-4 family residential 493 — 575 1,068 216,459 217,527 989 115 Other real estate loans 403 — 477 880 220,516 221,396 528 — Commercial and industrial 54 2 2 58 45,987 46,045 — 2 Consumer and other loans 14 84 16 114 16,445 16,559 — 16 Total $ 964 $ 86 $ 1,150 $ 2,200 $ 548,275 $ 550,475 $ 1,915 $ 133 December 31, 2018 30-59 Days Past Due 60-89 Days Past Due > 90 Days Past Due Total Past Due Current Total Loans Non-accrual Loans 90 Days or More Past Due and Accruing Real estate loans: Construction and land development $ 88 $ 80 $ — $ 168 $ 45,699 $ 45,867 $ 327 $ — Secured by 1-4 family residential 747 393 423 1,563 214,382 215,945 663 — Other real estate loans 145 36 2,207 2,388 217,165 219,553 1,985 222 Commercial and industrial — 25 210 235 44,370 44,605 197 13 Consumer and other loans 90 — — 90 16,796 16,886 — — Total $ 1,070 $ 534 $ 2,840 $ 4,444 $ 538,412 $ 542,856 $ 3,172 $ 235 Credit Quality Indicators As part of the ongoing monitoring of the credit quality of the Company’s loan portfolio, management tracks certain credit quality indicators including trends related to the risk grading of specified classes of loans. The Company utilizes a risk grading matrix to assign a rating to each of its loans. The loan ratings are summarized into the following categories: pass, special mention, substandard, doubtful and loss. Pass rated loans include all risk rated credits other than those included in special mention, substandard or doubtful. Loans classified as loss are charged-off. Loan officers assign risk grades to loans at origination and as renewals arise. The Bank’s Credit Administration department reviews risk grades for accuracy on a quarterly basis and as credit issues arise. In addition, a certain amount of loans are reviewed each year through the Company’s internal and external loan review process. A description of the general characteristics of the loan grading categories is as follows: Pass – Loans classified as pass exhibit acceptable operating trends, balance sheet trends, and liquidity. Sufficient cash flow exists to service the loan. All obligations have been paid by the borrower as agreed. Special Mention – Loans classified as special mention have a potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or the Bank’s credit position at some future date. Substandard – Loans classified as substandard are inadequately protected by the current net worth and payment capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not corrected. Doubtful – Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. The Company considers all doubtful loans to be impaired and places the loan on non-accrual status. Loss – Loans classified as loss are considered uncollectable and of such little value that their continuance as bankable assets is not warranted. The following tables provide an analysis of the credit risk profile of each loan class as of March 31, 2019 and December 31, 2018 (in thousands): March 31, 2019 Pass Special Mention Substandard Doubtful Total Real estate loans: Construction and land development $ 48,151 $ 231 $ 566 $ — $ 48,948 Secured by 1-4 family residential 215,492 781 1,254 — 217,527 Other real estate loans 217,298 883 3,215 — 221,396 Commercial and industrial 46,018 15 12 — 46,045 Consumer and other loans 16,559 — — — 16,559 Total $ 543,518 $ 1,910 $ 5,047 $ — $ 550,475 December 31, 2018 Pass Special Mention Substandard Doubtful Total Real estate loans: Construction and land development $ 45,054 $ 235 $ 578 $ — $ 45,867 Secured by 1-4 family residential 214,089 924 932 — 215,945 Other real estate loans 213,681 900 4,972 — 219,553 Commercial and industrial 44,373 19 213 — 44,605 Consumer and other loans 16,886 — — — 16,886 Total $ 534,083 $ 2,078 $ 6,695 $ — $ 542,856

Allowance for Loan Losses

Allowance for Loan Losses	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
Allowance for Loan Losses	Allowance for Loan Losses The following tables present, as of March 31, 2019 , December 31, 2018 and March 31, 2018 , the total allowance for loan losses, the allowance by impairment methodology, and loans by impairment methodology (in thousands): March 31, 2019 Construction and Land Development Secured by 1-4 Family Residential Other Real Estate Commercial and Industrial Consumer and Other Loans Total Allowance for loan losses: Beginning Balance, December 31, 2018 $ 561 $ 895 $ 2,160 $ 464 $ 929 $ 5,009 Charge-offs — (49 ) — — (179 ) (228 ) Recoveries 50 2 — 2 111 165 Provision for (recovery of) loan losses (6 ) (82 ) 115 26 (53 ) — Ending Balance, March 31, 2019 $ 605 $ 766 $ 2,275 $ 492 $ 808 $ 4,946 Ending Balance: Individually evaluated for impairment 71 23 35 — — 129 Collectively evaluated for impairment 534 743 2,240 492 808 4,817 Loans: Ending Balance $ 48,948 $ 217,527 $ 221,396 $ 46,045 $ 16,559 $ 550,475 Individually evaluated for impairment 398 990 787 — — 2,175 Collectively evaluated for impairment 48,550 216,537 220,609 46,045 16,559 548,300 December 31, 2018 Construction and Land Development Secured by 1-4 Family Residential Other Real Estate Commercial and Industrial Consumer and Other Loans Total Allowance for loan losses: Beginning Balance, December 31, 2017 $ 414 $ 775 $ 2,948 $ 418 $ 771 $ 5,326 Charge-offs — (55 ) — (10 ) (1,104 ) (1,169 ) Recoveries — 13 5 8 226 252 Provision for (recovery of) loan losses 147 162 (793 ) 48 1,036 600 Ending Balance, December 31, 2018 $ 561 $ 895 $ 2,160 $ 464 $ 929 $ 5,009 Ending Balance: Individually evaluated for impairment 71 172 — — — 243 Collectively evaluated for impairment 490 723 2,160 464 929 4,766 Loans: Ending Balance $ 45,867 $ 215,945 $ 219,553 $ 44,605 $ 16,886 $ 542,856 Individually evaluated for impairment 327 663 2,249 197 — 3,436 Collectively evaluated for impairment 45,540 215,282 217,304 44,408 16,886 539,420 March 31, 2018 Construction and Land Development Secured by 1-4 Family Residential Other Real Estate Commercial and Industrial Consumer and Other Loans Total Allowance for loan losses: Beginning Balance, December 31, 2017 $ 414 $ 775 $ 2,948 $ 418 $ 771 $ 5,326 Charge-offs — (2 ) — (8 ) (196 ) (206 ) Recoveries — 3 1 1 47 52 Provision for (recovery of) loan losses (18 ) 2 18 40 58 100 Ending Balance, March 31, 2018 $ 396 $ 778 $ 2,967 $ 451 $ 680 $ 5,272 Ending Balance: Individually evaluated for impairment — — — — — — Collectively evaluated for impairment 396 778 2,967 451 680 5,272 Loans: Ending Balance $ 33,941 $ 208,338 $ 222,352 $ 39,253 $ 17,052 $ 520,936 Individually evaluated for impairment 874 1,332 1,263 61 — 3,530 Collectively evaluated for impairment 33,067 207,006 221,089 39,192 17,052 517,406 Impaired loans and the related allowance at March 31, 2019 , December 31, 2018 and March 31, 2018 , were as follows (in thousands): March 31, 2019 Unpaid Principal Balance Recorded Investment with No Allowance Recorded Investment with Allowance Total Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized Real estate loans: Construction and land development $ 412 $ — $ 398 $ 398 $ 71 $ 326 $ 1 Secured by 1-4 family 1,055 836 154 990 23 661 2 Other real estate loans 792 752 35 787 35 1,329 7 Commercial and industrial — — — — — 90 — Total $ 2,259 $ 1,588 $ 587 $ 2,175 $ 129 $ 2,406 $ 10 December 31, 2018 Unpaid Principal Balance Recorded Investment with No Allowance Recorded Investment with Allowance Total Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized Real estate loans: Construction and land development $ 336 $ — $ 327 $ 327 $ 71 $ 758 $ 12 Secured by 1-4 family 720 356 307 663 172 966 22 Other real estate loans 2,290 2,249 — 2,249 — 1,585 51 Commercial and industrial 200 197 — 197 — 146 — Total $ 3,546 $ 2,802 $ 634 $ 3,436 $ 243 $ 3,455 $ 85 March 31, 2018 Unpaid Principal Balance Recorded Investment with No Allowance Recorded Investment with Allowance Total Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized Real estate loans: Construction and land development $ 992 $ 874 $ — $ 874 $ — $ 1,257 $ 13 Secured by 1-4 family 1,417 1,332 — 1,332 — 1,299 15 Other real estate loans 1,464 1,263 — 1,263 — 1,274 19 Commercial and industrial 74 61 — 61 — 64 1 Total $ 3,947 $ 3,530 $ — $ 3,530 $ — $ 3,894 $ 48 The “Recorded Investment” amounts in the table above represent the outstanding principal balance on each loan represented in the table. The “Unpaid Principal Balance” represents the outstanding principal balance on each loan represented in the table plus any amounts that have been charged off on each loan and/or payments that have been applied towards principal on non-accrual loans. Only loan classes with balances are included in the tables above. As of March 31, 2019 , loans classified as troubled debt restructurings (TDRs) and included in impaired loans in the disclosure above totaled $649 thousand . At March 31, 2019 , $259 thousand of the loans classified as TDRs were performing under the restructured terms and were not considered non-performing assets. There were $467 thousand in TDRs at December 31, 2018 , $264 thousand of which were performing under the restructured terms. Modified terms under TDRs may include rate reductions, extension of terms that are considered to be below market, conversion to interest only, and other actions intended to minimize the economic loss and to avoid foreclosure or repossession of the collateral. There was one loan secured by 1-4 family residential real estate modified as a TDR during the three month period ended March 31, 2019 because the loan was extended with terms considered to be below market. The TDR described above did not have an impact on the allowance for loan losses at March 31, 2019 . There were no loans modified under TDRs during the three month period ended March 31, 2018 . For the three months ended March 31, 2019 and 2018 , there were no troubled debt restructurings that subsequently defaulted within twelve months of the loan modification. Management defines default as over ninety days past due or the foreclosure and repossession of the collateral or charge-off of the loan during the twelve month period subsequent to the modification.

Other Real Estate Owned (OREO)

Other Real Estate Owned (OREO)	3 Months Ended
	Mar. 31, 2019
Real Estate [Abstract]
Other Real Estate Owned (OREO)	Other Real Estate Owned (OREO) Changes in the balance for OREO are as follows (in thousands): Three Months Ended Year Ended March 31, December 31, Balance at the beginning of year, gross $ — $ 326 Transfers in — 68 Sales proceeds — (416 ) Gain on disposition — 22 Balance at the end of period, gross $ — $ — Less: valuation allowance — — Balance at the end of period, net $ — $ — There were no residential real estate properties included in the ending OREO balances above at March 31, 2019 and December 31, 2018 . The recorded investment of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings were in process was $149 thousand as of March 31, 2019 . The Bank did not have any expenses applicable to OREO for the three months ended March 31, 2019 . Net expenses applicable to OREO, other than the provision for losses, were $1 thousand for the three months ended March 31, 2018 and $2 thousand for the year ended December 31, 2018 .

Other Borrowings

Other Borrowings	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Other Borrowings	Other Borrowings The Company had an unsecured line of credit totaling $5.0 million with a non-affiliated bank at March 31, 2019 . Borrowings on the line of credit totaled $5.0 million at March 31, 2019 . The interest rate on the line of credit floats at Wall Street Journal Prime Rate plus 0.25% and matures on March 28, 2025. The Bank had unused lines of credit totaling $142.7 million and $128.5 million available with non-affiliated banks at March 31, 2019 and December 31, 2018 , respectively. These amounts primarily consist of a blanket floating lien agreement with the Federal Home Loan Bank of Atlanta (FHLB) in which the Bank can borrow up to 19% of its total assets. The unused line of credit with FHLB totaled $85.9 million at March 31, 2019 . The Bank had collateral pledged on the borrowing line at March 31, 2019 and December 31, 2018 including real estate loans totaling $122.8 million and $110.8 million , respectively, and Federal Home Loan Bank stock with a book value of $776 thousand and $763 thousand , respectively. The Bank did not have borrowings from the FHLB at March 31, 2019 and December 31, 2018 .

Capital Requirements

Capital Requirements	3 Months Ended
	Mar. 31, 2019
Regulatory Capital Requirements [Abstract]
Capital Requirements	Capital Requirements The Bank is subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the 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 their assets, liabilities, and certain off-balance-sheet items as calculated under regulatory accounting practices. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk-weightings, and other factors. Prompt corrective action provisions are not applicable to bank holding companies. The final rules implementing the Basel Committee on Banking Supervision’s capital guidelines for U.S. banks (Basel III rules) became effective January 1, 2015, with full compliance of all the requirements phased in over a multi-year schedule, and became fully phased in January 1, 2019. As part of the new requirements, the common equity Tier 1 capital ratio is calculated and utilized in the assessment of capital for all institutions. The final rules also established a “capital conservation buffer” above the new regulatory minimum capital requirements. The capital conservation buffer has been phased-in over four years, which began on January 1, 2016 and was fully implemented on January 1, 2019. Quantitative measures established by regulation to ensure capital adequacy require the Bank to maintain minimum amounts and ratios (set forth in the following table) of total (as defined in the regulations), Tier 1 (as defined), and common equity Tier 1 capital (as defined) to risk-weighted assets (as defined), and of Tier 1 capital to average assets. Management believes, as of March 31, 2019 and December 31, 2018 , that the Bank met all capital adequacy requirements to which it is subject. As of March 31, 2019 , the most recent notification from the Federal Reserve Bank categorized the Bank as well capitalized under the regulatory framework for prompt corrective action. To be categorized as well capitalized, the Bank must maintain minimum risk-based capital and leverage ratios as set forth in the following table. There are no conditions or events since that notification that management believes have changed the Bank’s category. A comparison of the capital of the Bank at March 31, 2019 and December 31, 2018 with the minimum regulatory guidelines were as follows (dollars in thousands): Actual Minimum Capital Requirement Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio March 31, 2019 Total Capital (to Risk-Weighted Assets) $ 80,780 14.49 % $ 44,598 8.00 % $ 55,747 10.00 % Tier 1 Capital (to Risk-Weighted Assets) $ 75,834 13.60 % $ 33,448 6.00 % $ 44,598 8.00 % Common Equity Tier 1 Capital (to Risk-Weighted Assets) $ 75,834 13.60 % $ 25,086 4.50 % $ 36,236 6.50 % Tier 1 Capital (to Average Assets) $ 75,834 10.01 % $ 30,302 4.00 % $ 37,877 5.00 % December 31, 2018 Total Capital (to Risk-Weighted Assets) $ 74,697 13.62 % $ 43,859 8.00 % $ 54,824 10.00 % Tier 1 Capital (to Risk-Weighted Assets) $ 69,688 12.71 % $ 32,894 6.00 % $ 43,859 8.00 % Common Equity Tier 1 Capital (to Risk-Weighted Assets) $ 69,688 12.71 % $ 24,671 4.50 % $ 35,635 6.50 % Tier 1 Capital (to Average Assets) $ 69,688 9.26 % $ 30,100 4.00 % $ 37,625 5.00 % In addition to the regulatory minimum risk-based capital amounts presented above, the Bank must maintain a capital conservation buffer as required by the Basel III final rules. The buffer began applying to the Bank on January 1, 2016, and is subject to phase-in from 2016 to 2019 in equal annual installments of 0.625% . Accordingly, the Bank was required to maintain a capital conservation buffer of 2.50% and 1.875% at March 31, 2019 and December 31, 2018 , respectively. Under the final rules, an institution is subject to limitations on paying dividends, engaging in share repurchases, and paying discretionary bonuses if its capital level falls below the buffer amount. As of March 31, 2019 and December 31, 2018 , the capital conservation buffer of the Bank was 6.49% and 5.62% , respectively.

Subordinated Debt

Subordinated Debt	3 Months Ended
	Mar. 31, 2019
Brokers and Dealers [Abstract]
Subordinated Debt	Subordinated Debt On October 30, 2015, the Company entered into a Subordinated Loan Agreement (the Agreement) pursuant to which the Company issued an interest only subordinated term note due 2025 in the aggregate principal amount of $5.0 million (the Note). The Note bears interest at a fixed rate of 6.75% per annum. The Note qualifies as Tier 2 capital for regulatory capital purposes and at March 31, 2019 , the total amount of subordinated debt issued was included in the Company’s Tier 2 capital. Unamortized debt issuance costs related to the Note were $31 thousand and $35 thousand at March 31, 2019 and December 31, 2018 , respectively. The Note has a maturity date of October 1, 2025. Subject to regulatory approval, the Company may prepay the Note, in part or in full, beginning on October 30, 2020. The Note is an unsecured, subordinated obligation of the Company and ranks junior in right of payment to the Company’s senior indebtedness and to the Company’s obligations to its general creditors. The Note ranks equally with all other unsecured subordinated debt, except any which by its terms is expressly stated to be subordinated to the Note. The Note ranks senior to all current and future junior subordinated debt obligations, preferred stock, and common stock of the Company. The Note is not convertible into common stock or preferred stock. The Agreement contains customary events of default such as the bankruptcy of the Company and the non-payment of principal or interest when due. The holder of the Note may accelerate the repayment of the Note only in the event of bankruptcy or similar proceedings and not for any other event of default.

Junior Subordinated Debt

Junior Subordinated Debt	3 Months Ended
	Mar. 31, 2019
Other Liabilities and Financial Instruments Subject to Mandatory Redemption [Abstract]
Junior Subordinated Debt	Junior Subordinated Debt On June 8, 2004, First National (VA) Statutory Trust II (Trust II), a wholly-owned subsidiary of the Company, was formed for the purpose of issuing redeemable capital securities, commonly known as trust preferred securities. On June 17, 2004, $5.0 million of trust preferred securities were issued through a pooled underwriting. The securities have a LIBOR-indexed floating rate of interest. The interest rate at March 31, 2019 and December 31, 2018 was 5.21% and 5.39% , respectively. The securities have a mandatory redemption date of June 17, 2034 , and were subject to varying call provisions that began September 17, 2009. The principal asset of Trust II is $5.2 million of the Company’s junior subordinated debt with maturities and interest rates comparable to the trust preferred securities. The Trust’s obligations under the trust preferred securities are fully and unconditionally guaranteed by the Company. The Company is current on its interest payments on the junior subordinated debt. On July 24, 2006, First National (VA) Statutory Trust III (Trust III), a wholly-owned subsidiary of the Company, was formed for the purpose of issuing redeemable capital securities. On July 31, 2006, $4.0 million of trust preferred securities were issued through a pooled underwriting. The securities have a LIBOR-indexed floating rate of interest. The interest rate at March 31, 2019 and December 31, 2018 was 4.40% and 4.00% , respectively. The securities have a mandatory redemption date of October 1, 2036 , and were subject to varying call provisions that began October 1, 2011. The principal asset of Trust III is $4.1 million of the Company’s junior subordinated debt with maturities and interest rates comparable to the trust preferred securities. The Trust’s obligations under the trust preferred securities are fully and unconditionally guaranteed by the Company. The Company is current on its interest payments on the junior subordinated debt. While these securities are debt obligations of the Company, they are included in capital for regulatory capital ratio calculations. Under present regulations, the junior subordinated debt may be included in Tier 1 capital for regulatory capital adequacy purposes as long as their amount does not exceed 25% of Tier 1 capital, including total junior subordinated debt. The portion of the junior subordinated debt not considered as Tier 1 capital, if any, may be included in Tier 2 capital. At March 31, 2019 and December 31, 2018 , the total amount of junior subordinated debt issued by the Trusts was included in the Company’s Tier 1 capital.

Benefit Plans

Benefit Plans	3 Months Ended
	Mar. 31, 2019
Retirement Benefits [Abstract]
Benefit Plans	Benefit Plans The Company maintains a 401(k) plan for all eligible employees. Participating employees may elect to contribute up to the maximum percentage allowed by the Internal Revenue Service, as defined in the plan. The Company makes matching contributions, on a dollar-for dollar basis, for the first one percent of an employee’s compensation contributed to the Plan and fifty cents for each dollar of the employee’s contribution between two percent and six percent . The Company also makes an additional contribution based on years of service to participants who have completed at least one thousand hours of service during the year and who are employed on the last day of the Plan Year. All employees who are age nineteen or older are eligible. Employee contributions vest immediately. Employer matching contributions vest after two plan service years with the Company. The Company has the discretion to make a profit sharing contribution to the plan each year based on overall performance, profitability, and other economic factors. For the three months ended March 31, 2019 and 2018 , expense attributable to the Plan amounted to $247 thousand and $233 thousand , respectively. On March 15, 2019, the Company entered into supplemental executive retirement plans and participation agreements with three of its employees. The retirement benefits are fixed and provide for retirement benefits payable in 180 monthly installments. The contribution expense is solely funded by the Company and totaled $23 thousand for the first quarter of 2019. See Note 13 of the consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 for additional information about the Company’s benefit plans.

Earnings per Common Share

Earnings per Common Share	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Earnings per Common Share	Earnings per Common Share Basic earnings per common share represents income available to common shareholders divided by the weighted-average number of common shares outstanding during the period. Diluted earnings per common share reflects additional common shares that would have been outstanding if dilutive potential common shares had been issued, as well as any adjustment to income that would result from the assumed issuance. The following table presents the computation of basic and diluted earnings per share for the three months ended March 31, 2019 and 2018 (dollars in thousands, except per share data): Three Months Ended March 31, 2019 March 31, 2018 (Numerator): Net income $ 2,261 $ 2,687 (Denominator): Weighted average shares outstanding – basic 4,960,264 4,949,112 Potentially dilutive common shares – restricted stock units 3,870 3,261 Weighted average shares outstanding – diluted 4,964,134 4,952,373 Income per common share Basic $ 0.46 $ 0.54 Diluted $ 0.46 $ 0.54

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. In accordance with the “Fair Value Measurement and Disclosures” topic of FASB ASC, the fair value of a financial instrument is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is best determined based upon quoted market prices. However, in many instances, there are no quoted market prices for the Company’s various financial instruments. 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. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument. The fair value guidance provides a consistent definition of fair value, which focuses on exit price in an orderly transaction (that is, not a forced liquidation or distressed sale) between market participants at the measurement date under current market conditions. If there has been a significant decrease in the volume and level of activity for the asset or liability, a change in valuation technique or the use of multiple valuation techniques may be appropriate. In such instances, determining the price at which willing market participants would transact at the measurement date under current market conditions depends on the facts and circumstances and requires the use of significant judgment. The fair value is a reasonable point within the range that is most representative of fair value under current market conditions. Fair Value Hierarchy In accordance with this guidance, the Company groups its assets and liabilities generally measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. Level 1 - Valuation is based on quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 1 assets and liabilities generally include debt and equity securities that are traded in an active exchange market. Valuations are obtained from readily available pricing sources for market transactions involving identical assets or liabilities. Level 2 - Valuation is based on inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. The valuation may be based on quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the asset or liability. Level 3 - Valuation is based on unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which determination of fair value requires a significant management judgment or estimation. An instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The following describes the valuation techniques used by the Company to measure certain assets recorded at fair value on a recurring basis in the financial statements: Securities available for sale Securities available for sale are recorded at fair value on a recurring basis. Fair value measurement is based upon quoted market prices, when available (Level 1). If quoted market prices are not available, fair values are measured utilizing independent valuation techniques of identical or similar securities for which significant assumptions are derived primarily from or corroborated by observable market data. Third party vendors compile prices from various sources and may determine the fair value of identical or similar securities by using pricing models that consider observable market data (Level 2). The following tables present the balances of assets measured at fair value on a recurring basis as of March 31, 2019 and December 31, 2018 (in thousands). Fair Value Measurements at March 31, 2019 Description Balance as of March 31, Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Securities available for sale U.S. agency and mortgage-backed securities $ 95,566 $ — $ 95,566 $ — Obligations of states and political subdivisions 25,636 — 25,636 — $ 121,202 $ — $ 121,202 $ — Fair Value Measurements at December 31, 2018 Description Balance as of December 31, Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Securities available for sale U.S. agency and mortgage-backed securities $ 84,922 $ — $ 84,922 $ — Obligations of states and political subdivisions 14,935 — 14,935 $ 99,857 $ — $ 99,857 $ — Certain assets are measured at fair value on a nonrecurring basis in accordance with GAAP. Adjustments to the fair value of these assets usually result from the application of lower-of-cost-or-market accounting or write-downs of individual assets. The following describes the valuation techniques used by the Company to measure certain assets recorded at fair value on a nonrecurring basis in the financial statements: Loans held for sale Loans held for sale are carried at the lower of cost or market value. These loans currently consist of one-to-four family residential loans originated for sale in the secondary market. Fair value is based on the price secondary markets are currently offering for similar loans using observable market data which is not materially different than cost due to the short duration between origination and sale (Level 2). As such, the Company records any fair value adjustments on a nonrecurring basis. No nonrecurring fair value adjustments were recorded on loans held for sale during the three months ended March 31, 2019 and the year ended December 31, 2018 . Impaired Loans Loans are designated as impaired when, in the judgment of management based on current information and events, it is probable that all amounts due according to the contractual terms of the loan agreements will not be collected. The measurement of loss associated with impaired loans can be based on the present value of expected future cash flows discounted at the loan’s effective interest rate, the observable market price of the loan, or the fair value of the collateral less estimated costs to sell. Collateral may be in the form of real estate or business assets including equipment, inventory, and accounts receivable. The vast majority of the Company’s collateral is real estate. The value of real estate collateral is determined utilizing a market valuation approach based on an appraisal conducted by an independent, licensed appraiser using observable market data (Level 2) within the last twelve months. However, if the collateral is a house or building in the process of construction or if an appraisal of the property is more than one year old and not solely based on observable market comparables or management determines the fair value of the collateral is further impaired below the appraised value, then a Level 3 valuation is considered to measure the fair value. The value of business equipment is based upon an outside appraisal, of one year or less, if deemed significant, or the net book value on the applicable business’s financial statements if not considered significant using observable market data. Likewise, values for inventory and accounts receivables collateral are based on financial statement balances or aging reports (Level 3). Impaired loans allocated to the allowance for loan losses are measured at fair value on a nonrecurring basis. Any fair value adjustments are recorded in the period incurred as provision for loan losses on the Consolidated Statements of Income. Other real estate owned Loans are transferred to other real estate owned when the collateral securing them is foreclosed on or acquired through a deed in lieu of foreclosure. The measurement of loss associated with other real estate owned is based on the appraisal documents and assessed the same way as impaired loans described above. Any fair value adjustments are recorded in the period incurred as other real estate owned income on the Consolidated Statements of Income. The following tables summarize the Company’s assets that were measured at fair value on a nonrecurring basis during the periods (dollars in thousands): Fair Value Measurements at March 31, 2019 Description Balance as of March 31, Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Impaired loans, net $ 458 $ — $ — $ 458 Fair Value Measurements at December 31, 2018 Description Balance as of December 31, Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Impaired loans, net $ 391 $ — $ — $ 391 Quantitative information about Level 3 Fair Value Measurements for March 31, 2019 Fair Value Valuation Technique Unobservable Input Range (Weighted-Average) Impaired loans, net $ 458 Property appraisals Selling cost 10 % Quantitative information about Level 3 Fair Value Measurements for December 31, 2018 Fair Value Valuation Technique Unobservable Input Range (Weighted-Average) Impaired loans, net $ 391 Property appraisals Selling cost 10 % Accounting guidance requires disclosure of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis. The carrying values and estimated fair values of the Company’s financial instruments at March 31, 2019 and December 31, 2018 are as follows (in thousands): Fair Value Measurements at March 31, 2019 Using Carrying Amount Quoted Prices in Active Markets for Identical Assets Level 1 Significant Other Observable Inputs Level 2 Significant Unobservable Inputs Level 3 Fair Value Financial Assets Cash and short-term investments $ 42,695 $ 42,695 $ — $ — $ 42,695 Securities available for sale 121,202 — 121,202 — 121,202 Securities held to maturity 19,489 — 17,677 1,513 19,190 Restricted securities 1,701 — 1,701 — 1,701 Loans held for sale 200 — 200 — 200 Loans, net 545,529 — — 541,176 541,176 Bank owned life insurance 17,094 — 17,094 — 17,094 Accrued interest receivable 2,143 — 2,143 — 2,143 Financial Liabilities Deposits $ 684,224 $ — $ 566,934 $ 115,492 $ 682,426 Other borrowings 5,000 — — 5,000 5,000 Subordinated debt 4,969 — — 5,127 5,127 Junior subordinated debt 9,279 — — 9,464 9,464 Accrued interest payable 157 — 157 — 157 Fair Value Measurements at December 31, 2018 Using Carrying Amount Quoted Prices in Active Markets for Identical Assets Level 1 Significant Other Observable Inputs Level 2 Significant Unobservable Inputs Level 3 Fair Value Financial Assets Cash and short-term investments $ 28,618 $ 28,618 $ — $ — $ 28,618 Securities available for sale 99,857 — 99,857 — 99,857 Securities held to maturity 43,408 — 40,885 1,509 42,394 Restricted securities 1,688 — 1,688 — 1,688 Loans held for sale 419 — 419 — 419 Loans, net 537,847 — — 528,643 528,643 Bank owned life insurance 13,991 — 13,991 — 13,991 Accrued interest receivable 2,113 — 2,113 — 2,113 Financial Liabilities Deposits $ 670,566 $ — $ 551,347 $ 117,220 $ 668,567 Subordinated debt 4,965 — — 5,035 5,035 Junior subordinated debt 9,279 — — 7,952 7,952 Accrued interest payable 139 — 139 — 139 The Company assumes interest rate risk (the risk that general interest rate levels will change) as a result of its normal operations. As a result, the fair values of the Company’s financial instruments will change when interest rate levels change and that change may be either favorable or unfavorable to the Company. Management attempts to match maturities of assets and liabilities to the extent believed necessary to minimize interest rate risk. However, borrowers with fixed rate obligations are less likely to prepay in a rising rate environment and more likely to prepay in a falling rate environment. Conversely, depositors who are receiving fixed rates are more likely to withdraw funds before maturity in a rising rate environment and less likely to do so in a falling rate environment. Management monitors rates and maturities of assets and liabilities and attempts to minimize interest rate risk by adjusting terms of new loans and deposits and by investing in securities with terms that mitigate the Company’s overall interest rate risk.

Stock Compensation Plans

Stock Compensation Plans	3 Months Ended
	Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Compensation Plans	Stock Compensation Plans On May 13, 2014, the Company’s shareholders approved the First National Corporation 2014 Stock Incentive Plan, which makes available up to 240,000 shares of common stock for the granting of stock options, restricted stock awards, stock appreciation rights, and other stock-based awards. Awards are made at the discretion of the Board of Directors and compensation cost equal to the fair value of the award is recognized over the vesting period. Stock Awards Whenever the Company deems it appropriate to grant a stock award, the recipient receives a specified number of unrestricted shares of employer stock. Stock awards may be made by the Company at its discretion without cash consideration and may be granted as settlement of a performance-based compensation award. The Company did not have compensation expense related to stock awards for the three months ended March 31, 2019 and 2018 . Restricted Stock Units Restricted stock units are an award of units that correspond in number and value to a specified number of shares of employer stock which the recipient receives according to a vesting plan and distribution schedule after achieving required performance milestones or upon remaining with the employer for a particular length of time. Each restricted stock unit that vests entitles the recipient to receive one share of common stock on a specified issuance date. In the first quarter of 2019 , 8,692 restricted stock units were granted to employees, with 1,235 units vesting immediately, 2,457 units subject to a two year vesting schedule with one half of the units vesting each year on the grant date anniversary, and 5,000 units subject to a five year vesting schedule will all of the units vesting on the fifth anniversary of the grant date. The recipient does not have any stockholder rights, including voting, dividend, or liquidation rights, with respect to the shares underlying awarded restricted stock units until vesting has occurred and the recipient becomes the record holder of those shares. The unvested restricted stock units will vest on the established schedule if the employees remain employed by the Company on future vesting dates. A summary of the activity for the Company’s restricted stock units for the period indicated is presented in the following table: Three Months Ended March 31, 2019 Shares Weighted Average Grant Date Fair Value Unvested, beginning of year 7,103 $ 17.93 Granted 8,692 19.56 Vested (5,402 ) 17.99 Forfeited — — Unvested, end of period 10,393 $ 19.26 At March 31, 2019 , based on restricted stock unit awards outstanding at that time, the total unrecognized pre-tax compensation expense related to unvested restricted stock unit awards was $188 thousand . This expense is expected to be recognized through 2024. Compensation expense related to restricted stock unit awards recognized for the three months ended March 31, 2019 and 2018 totaled $43 thousand and $70 thousand , respectively.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Changes in each component of accumulated other comprehensive loss were as follows (in thousands): Net Unrealized Gains (Losses) on Securities Adjustments Related to Pension Benefits Accumulated Other Comprehensive Loss Balance at December 31, 2017 $ (1,057 ) $ 99 $ (958 ) Unrealized holding losses (net of tax, ($229)) (862 ) — (862 ) Pension liability adjustment (net of tax, ($27)) — (99 ) (99 ) Change during period (862 ) (99 ) (961 ) Balance at March 31, 2018 $ (1,919 ) $ — $ (1,919 ) Balance at December 31, 2018 $ (1,808 ) $ — $ (1,808 ) Unrealized holding gains (net of tax, $407) 1,528 — 1,528 Unrealized holding losses transferred from held to maturity to available for sale (net of tax, ($91)) (340 ) — (340 ) Change during period 1,188 — 1,188 Balance at March 31, 2019 $ (620 ) $ — $ (620 ) The Company did not have any reclassifications from accumulated other comprehensive loss for the three month periods ended March 31, 2019 and 2018 .

Revenue Recognition

Revenue Recognition	3 Months Ended
	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition On January 1, 2018, the Company adopted ASU No. 2014-09, "Revenue from Contracts with Customers: Topic 606" and all subsequent ASUs that modified Topic 606. Most revenue associated with financial instruments, including interest income, loan origination fees, and credit card fees, is outside the scope of the guidance. Gains and losses on investment securities, derivatives, financial guarantees, and sales of financial instruments are similarly excluded from the scope. The guidance is applicable to noninterest revenue streams such as service charges on deposit accounts, ATM and check card fees, wealth management fees, and fees for other customer services. Noninterest revenue streams within the scope of Topic 606 are discussed below. Service charges on deposit accounts Service charges on deposit accounts consist of monthly service fees, overdraft and nonsufficient funds fees, and other deposit account related fees. The Company's performance obligation for monthly service fees is generally satisfied, and the related revenue recognized, over the period in which the service is provided. Payment for service charges on deposit accounts is primarily received immediately or in the following month through a direct charge to customers' accounts. Overdraft and nonsufficient funds fees and other deposit account related fees are transactional based, and therefore, the Company's performance obligation is satisfied, and related revenue recognized, at a point in time. ATM and check card fees ATM fees are primarily generated when a Company cardholder uses a non-Company ATM or a non-Company cardholder uses a Company ATM. ATM fees are transactional based, and therefore, the Company's performance obligation is satisfied, and related revenue recognized, at a point in time. Check card fees are primarily comprised of interchange fee income. Interchange fees are earned whenever the Company's debit cards are processed through card payment networks, such as Visa. The Company's performance obligation for interchange fee income is largely satisfied, and related revenue recognized, when the services are rendered or upon completion. Payment is typically received immediately or in the following month. In compliance with Topic 606, debit card fee income is presented net of associated expense. Wealth management fees Wealth management fees are primarily comprised of fees earned from the management and administration of trusts and other customer assets. The Company's performance obligation is generally satisfied over time and the resulting fees are primarily recognized monthly, based upon the month-end market value of the assets under management and the applicable fee rate. Payment is generally received a few days after month-end through a direct charge to customers' accounts. Estate management fees are based upon the size of the estate. Revenue for estate management fees are recorded periodically, according to a fee schedule, and are based on the services that have been provided. Fees for other customer services Fees for other customer services include check ordering charges, merchant services income, safe deposit box rental fees, and other service charges. Check ordering charges are transactional based, and therefore, the Company's performance obligation is satisfied, and related revenue recognized, at a point in time. Merchant services income mainly represent fees charged to merchants to process their debit and credit card transactions. The Company's performance obligation for merchant services income is largely satisfied, and related revenue recognized, when the services are rendered or upon completion. Payment is typically received immediately or in the following month. Safe deposit box rental fees are charged to the customer on an annual basis and recognized upon receipt of payment. The Company determined that since rentals and renewals occur fairly consistently over time, revenue is recognized on a basis consistent with the duration of the performance obligation. The following table presents noninterest income, segregated by revenue streams in-scope and out-of-scope of Topic 606, for the three months ended March 31, 2019 and 2018 (in thousands): Three Months Ended March 31, 2019 March 31, 2018 Noninterest Income Service charges on deposit accounts $ 701 $ 762 ATM and check card fees 517 519 Wealth management fees 437 407 Fees for other customer services 175 153 Noninterest income (in-scope of Topic 606) $ 1,830 $ 1,841 Noninterest income (out-of-scope of Topic 606) 155 792 Total noninterest income $ 1,985 $ 2,633

Leases

Leases	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Leases	Leases On January 1, 2019, the Company adopted ASU No. 2016-02, "Leases (Topic 842)" and all subsequent ASUs that modified Topic 842. The Company elected the prospective application approach provided by ASU No. 2018-11 and did not adjust prior periods for ASC 842. There was no cumulative effect adjustment at adoption. The Company also elected certain practical expedients within the standard and did not reassess whether any expired or existing contracts are or contain leases, did not reassess the lease classification for any expired or existing leases, and did not reassess any initial direct costs for existing leases. Prior to adoption, all of the Company's leases were classified as operating leases and remain operating leases at adoption. The implementation of the new standard resulted in recognition of a right-of-use asset and lease liability of $390 thousand for leases existing at the date of adoption. Contracts that commence subsequent to adoption are evaluated to determine whether they are or contain a lease in accordance with Topic 842. The Company has elected the practical expedient provided by Topic 842 not to allocate consideration in a contract between lease and non-lease components. The Company also elected, as provided by the standard, not to recognize right-of-use assets and lease liabilities for short-term leases, defined by the standard as leases with terms of 12 months or less. The Company has not entered into any new operating leases since adoption. Lease liabilities represent the Company's obligation to make lease payments and are presented at each reporting date as the net present value of the remaining contractual cash flows. Cash flows are discounted at the Company's incremental borrowing rate in effect at the commencement date of the lease. Right-of-use assets represent the Company's right to use the underlying asset for the lease term and are calculated as the sum of the lease liability and, if applicable, prepaid rent, initial direct costs, and any incentives received from the lessor. Lease payments Lease payments for short-term leases are recognized as lease expense on a straight-line basis over the lease term, or for variable lease payments, in the period in which the obligation was incurred. Payments for leases with terms longer than twelve months are included in the determination of the lease liability. Payments may be fixed for the term of the lease or variable. If the lease agreement provides a known escalator, such as a specified percentage increase per year or a stated increase at a specified time, the variable payment is included in the cash flows used to determine the lease liability. If the variable payment is based upon an unknown escalator, such as the consumer price index at a future date, the increase is not included in the cash flows used to determine the lease liability. Three of the Company's leases provide known escalators that are included in the determination of the lease liability. The remaining leases do not have variable payments during the term of the lease. Options to extend, residual value guarantees, and restrictions and covenants Of the Company's six leases, five leases offer the option to extend the lease. The calculation of the lease liability includes the additional time and lease payments for options which the Company is reasonably certain it will exercise. None of the Company's leases provide for residual value guarantees and none provide restrictions or covenants that would impact dividends or require incurring additional financial obligations. The following table presents the operating lease right-of-use asset and operating lease liability as of March 31, 2019 (in thousands): Classification in the Consolidated Balance Sheet March 31, 2019 Operating lease right-of-use asset Other assets $ 360 Operating lease liability Accrued interest payable and other liabilities 359 The following table presents the weighted average remaining operating lease term and the weighted average discount rate for operating leases as of March 31, 2019 (dollars in thousands): March 31, 2019 Weighted average remaining lease term, in years 3.3 Weighted average discount rate 2.79 % The following table presents the components of operating lease expense and supplemental cash flow information for the three months ended March 31, 2019 (in thousands): Three Months Ended March 31, 2019 March 31, 2018 Lease Expense Operating lease expense $ 33 $ N/A Short-term lease expense 2 N/A Total lease expense (1) $ 35 $ 39 Cash paid for amounts included in lease liability $ 34 $ N/A (1) Included in occupancy expense in the Company's consolidated statements of income. The following table presents a maturity schedule of undiscounted cash flows that contribute to the operating lease liability as of March 31, 2019 (in thousands): March 31, 2019 Nine months ending December 31, 2019 $ 102 Twelve months ending December 31, 2020 112 Twelve months ending December 31, 2021 89 Twelve months ending December 31, 2022 65 Twelve months ending December 31, 2023 8 Total undiscounted cash flows $ 376 Less: discount (17 ) Operating lease liability $ 359 The contracts in which the Company is lessee are with parties external to the Company and not related parties.

General (Policies)

General (Policies)	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Adoption of New Accounting Standards and Recent Accounting Pronouncements	Adoption of New Accounting Standards On January 1, 2019, the Company adopted ASU No. 2016-02, “Leases (Topic 842).” Among other things, in the amendments in ASU 2016-02, lessees are required to recognize the following for all leases (with the exception of short-term leases) at the commencement date: (1) A lease liability, which is a lessee‘s obligation to make lease payments arising from a lease, measured on a discounted basis; and (2) A right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Under the new guidance, lessor accounting is largely unchanged. Certain targeted improvements were made to align, where necessary, lessor accounting with the lessee accounting model and Topic 606, Revenue from Contracts with Customers. Lessees (for capital and operating leases) and lessors (for sales-type, direct financing, and operating leases) must apply a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The modified retrospective approach does not require any transition accounting for leases that expired before the earliest comparative period presented. Lessees and lessors may not apply a full retrospective transition approach. The FASB made subsequent amendments to Topic 842 through ASU 2018-10 (“Codification Improvements to Topic 842, Leases.”) and ASU 2018-11 (“Leases (Topic 842): Targeted Improvements.”) Among these amendments is the provision in ASU 2018-11 that provides entities with an additional (and optional) transition method to adopt the new leases standard. Under this new transition method, an entity initially applies the new leases standard at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, an entity’s reporting for the comparative periods presented in the financial statements in which it adopts the new leases standard will continue to be in accordance with current GAAP (Topic 840, Leases). The adoption of this standard did not have a material effect on the Company's consolidated financial statements. For further information about the Company's leases, see Note 16. On January 1, 2019, the Company adopted ASU No. 2017-08, "Receivables—Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities.” The amendments in ASU 2017-08 shorten the amortization period for certain callable debt securities purchased at a premium. Under the new guidance, premiums on these qualifying callable debt securities are amortized to the earliest call date. Discounts on purchased debt securities continue to be accreted to maturity. The adoption of this standard did not have a material effect on the Company's consolidated financial statements and no cumulative effect adjustment was recorded. On January 1, 2019, the Company adopted ASU No. 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities." The amendments in ASU 2017-12 modify the designation and measurement guidance for hedge accounting as well as provide for increased transparency regarding the presentation of economic results on both the financial statements and related footnotes. Certain aspects of hedge effectiveness assessments were simplified upon implementation of this updated. The new guidance also provides for a reclassification of certain debt securities from held to maturity to available for sale if the security is eligible to be hedged using the last-of-layer method. Any unrealized gain or loss existing at the time of transfer is recorded in accumulated comprehensive income or loss. As a permitted activity, the reclassification of securities will not taint future held to maturity classification so long as the securities transferred are eligible to be hedged under the last-of-layer method. Accordingly, on January 1, 2019, the Company reclassified eligible held to maturity securities with amortized costs totaling $23.4 million as available for sale. The unrealized loss associated with the reclassified securities totaled $431 thousand and was included in the Company's accumulated other comprehensive loss on the date of reclassification. Recent Accounting Pronouncements In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” The amendments in this ASU, among other things, require the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Financial institutions and other organizations will now use forward-looking information to better inform their credit loss estimates. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. In addition, the ASU amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. The amendments in this ASU are effective for SEC filers for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. The Company is currently assessing the impact that ASU 2016-13 will have on its consolidated financial statements. The Company has formed a committee to address the compliance requirements of this ASU, which has analyzed gathered data, definined loan pools and segments, and selected methods for applying the concepts included in this ASU. The Company is in the process of testing selected models, building policy and processing documentation, modeling the impact of the ASU on the capital and strategic plans, performing model validation, and finalizing policies and procedures. This guidance may result in material changes in the Company's accounting for credit losses of financial instruments.
Fair Value Measurement and Disclosures	Accounting guidance requires disclosure of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis. The Company assumes interest rate risk (the risk that general interest rate levels will change) as a result of its normal operations. As a result, the fair values of the Company’s financial instruments will change when interest rate levels change and that change may be either favorable or unfavorable to the Company. Management attempts to match maturities of assets and liabilities to the extent believed necessary to minimize interest rate risk. However, borrowers with fixed rate obligations are less likely to prepay in a rising rate environment and more likely to prepay in a falling rate environment. Conversely, depositors who are receiving fixed rates are more likely to withdraw funds before maturity in a rising rate environment and less likely to do so in a falling rate environment. Management monitors rates and maturities of assets and liabilities and attempts to minimize interest rate risk by adjusting terms of new loans and deposits and by investing in securities with terms that mitigate the Company’s overall interest rate risk. Certain assets are measured at fair value on a nonrecurring basis in accordance with GAAP. Adjustments to the fair value of these assets usually result from the application of lower-of-cost-or-market accounting or write-downs of individual assets. The following describes the valuation techniques used by the Company to measure certain assets recorded at fair value on a nonrecurring basis in the financial statements: Loans held for sale Loans held for sale are carried at the lower of cost or market value. These loans currently consist of one-to-four family residential loans originated for sale in the secondary market. Fair value is based on the price secondary markets are currently offering for similar loans using observable market data which is not materially different than cost due to the short duration between origination and sale (Level 2). As such, the Company records any fair value adjustments on a nonrecurring basis. No nonrecurring fair value adjustments were recorded on loans held for sale during the three months ended March 31, 2019 and the year ended December 31, 2018 . Impaired Loans Loans are designated as impaired when, in the judgment of management based on current information and events, it is probable that all amounts due according to the contractual terms of the loan agreements will not be collected. The measurement of loss associated with impaired loans can be based on the present value of expected future cash flows discounted at the loan’s effective interest rate, the observable market price of the loan, or the fair value of the collateral less estimated costs to sell. Collateral may be in the form of real estate or business assets including equipment, inventory, and accounts receivable. The vast majority of the Company’s collateral is real estate. The value of real estate collateral is determined utilizing a market valuation approach based on an appraisal conducted by an independent, licensed appraiser using observable market data (Level 2) within the last twelve months. However, if the collateral is a house or building in the process of construction or if an appraisal of the property is more than one year old and not solely based on observable market comparables or management determines the fair value of the collateral is further impaired below the appraised value, then a Level 3 valuation is considered to measure the fair value. The value of business equipment is based upon an outside appraisal, of one year or less, if deemed significant, or the net book value on the applicable business’s financial statements if not considered significant using observable market data. Likewise, values for inventory and accounts receivables collateral are based on financial statement balances or aging reports (Level 3). Impaired loans allocated to the allowance for loan losses are measured at fair value on a nonrecurring basis. Any fair value adjustments are recorded in the period incurred as provision for loan losses on the Consolidated Statements of Income. Other real estate owned Loans are transferred to other real estate owned when the collateral securing them is foreclosed on or acquired through a deed in lieu of foreclosure. The measurement of loss associated with other real estate owned is based on the appraisal documents and assessed the same way as impaired loans described above. Any fair value adjustments are recorded in the period incurred as other real estate owned income on the Consolidated Statements of Income. The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. In accordance with the “Fair Value Measurement and Disclosures” topic of FASB ASC, the fair value of a financial instrument is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is best determined based upon quoted market prices. However, in many instances, there are no quoted market prices for the Company’s various financial instruments. 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. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument. The fair value guidance provides a consistent definition of fair value, which focuses on exit price in an orderly transaction (that is, not a forced liquidation or distressed sale) between market participants at the measurement date under current market conditions. If there has been a significant decrease in the volume and level of activity for the asset or liability, a change in valuation technique or the use of multiple valuation techniques may be appropriate. In such instances, determining the price at which willing market participants would transact at the measurement date under current market conditions depends on the facts and circumstances and requires the use of significant judgment. The fair value is a reasonable point within the range that is most representative of fair value under current market conditions. Fair Value Hierarchy In accordance with this guidance, the Company groups its assets and liabilities generally measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. Level 1 - Valuation is based on quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 1 assets and liabilities generally include debt and equity securities that are traded in an active exchange market. Valuations are obtained from readily available pricing sources for market transactions involving identical assets or liabilities. Level 2 - Valuation is based on inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. The valuation may be based on quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the asset or liability. Level 3 - Valuation is based on unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which determination of fair value requires a significant management judgment or estimation. An instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The following describes the valuation techniques used by the Company to measure certain assets recorded at fair value on a recurring basis in the financial statements: Securities available for sale Securities available for sale are recorded at fair value on a recurring basis. Fair value measurement is based upon quoted market prices, when available (Level 1). If quoted market prices are not available, fair values are measured utilizing independent valuation techniques of identical or similar securities for which significant assumptions are derived primarily from or corroborated by observable market data. Third party vendors compile prices from various sources and may determine the fair value of identical or similar securities by using pricing models that consider observable market data (Level 2).

Securities (Tables)

Securities (Tables)	3 Months Ended
	Mar. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Summary of Amortized Costs and Fair Values of Securities	Amortized costs and fair values of securities at March 31, 2019 and December 31, 2018 were as follows (in thousands): March 31, 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized (Losses) Fair Value Securities available for sale: U.S. agency and mortgage-backed securities $ 96,345 $ 295 $ (1,074 ) $ 95,566 Obligations of states and political subdivisions 25,643 153 (160 ) 25,636 Total securities available for sale $ 121,988 $ 448 $ (1,234 ) $ 121,202 Securities held to maturity: U.S. agency and mortgage-backed securities $ 14,193 $ — $ (332 ) $ 13,861 Obligations of states and political subdivisions 3,796 22 (2 ) 3,816 Corporate debt securities 1,500 13 — 1,513 Total securities held to maturity $ 19,489 $ 35 $ (334 ) $ 19,190 Total securities $ 141,477 $ 483 $ (1,568 ) $ 140,392 December 31, 2018 Amortized Cost Gross Unrealized Gains Gross Unrealized (Losses) Fair Value Securities available for sale: U.S. agency and mortgage-backed securities $ 86,944 $ 44 $ (2,066 ) $ 84,922 Obligations of states and political subdivisions 15,203 31 (299 ) 14,935 Total securities available for sale $ 102,147 $ 75 $ (2,365 ) $ 99,857 Securities held to maturity: U.S. agency and mortgage-backed securities $ 27,420 $ — $ (869 ) $ 26,551 Obligations of states and political subdivisions 14,488 20 (174 ) 14,334 Corporate debt securities 1,500 9 — 1,509 Total securities held to maturity $ 43,408 $ 29 $ (1,043 ) $ 42,394 Total securities $ 145,555 $ 104 $ (3,408 ) $ 142,251
Summary of Investments in an Unrealized Loss Position that were Temporarily Impaired	At March 31, 2019 and December 31, 2018 , investments in an unrealized loss position that were temporarily impaired were as follows (in thousands): March 31, 2019 Less than 12 months 12 months or more Total Fair Value Unrealized (Loss) Fair Value Unrealized (Loss) Fair Value Unrealized (Loss) Securities available for sale: U.S. agency and mortgage-backed securities $ 369 $ (2 ) $ 60,381 $ (1,072 ) $ 60,750 $ (1,074 ) Obligations of states and political subdivisions — — 8,793 (160 ) 8,793 (160 ) Total securities available for sale $ 369 $ (2 ) $ 69,174 $ (1,232 ) $ 69,543 $ (1,234 ) Securities held to maturity: U.S. agency and mortgage-backed securities $ — $ — $ 13,861 $ (332 ) $ 13,861 $ (332 ) Obligations of states and political subdivisions — — 761 (2 ) 761 (2 ) Total securities held to maturity $ — $ — $ 14,622 $ (334 ) $ 14,622 $ (334 ) Total securities $ 369 $ (2 ) $ 83,796 $ (1,566 ) $ 84,165 $ (1,568 ) December 31, 2018 Less than 12 months 12 months or more Total Fair Value Unrealized (Loss) Fair Value Unrealized (Loss) Fair Value Unrealized (Loss) Securities available for sale: U.S. agency and mortgage-backed securities $ 26,350 $ (215 ) $ 49,652 $ (1,851 ) $ 76,002 $ (2,066 ) Obligations of states and political subdivisions 3,761 (25 ) 5,127 (274 ) 8,888 (299 ) Total securities available for sale $ 30,111 $ (240 ) $ 54,779 $ (2,125 ) $ 84,890 $ (2,365 ) Securities held to maturity: U.S. agency and mortgage-backed securities $ — $ — $ 26,551 $ (869 ) $ 26,551 $ (869 ) Obligations of states and political subdivisions 5,326 (37 ) 6,115 (137 ) 11,441 (174 ) Total securities held to maturity $ 5,326 $ (37 ) $ 32,666 $ (1,006 ) $ 37,992 $ (1,043 ) Total securities $ 35,437 $ (277 ) $ 87,445 $ (3,131 ) $ 122,882 $ (3,408 )
Amortized Cost and Fair Value of Securities	The amortized cost and fair value of securities at March 31, 2019 by contractual maturity are shown below (in thousands). Expected maturities of mortgage-backed securities will differ from contractual maturities because borrowers may have the right to prepay obligations with or without call or prepayment penalties. Available for Sale Held to Maturity Amortized Cost Fair Value Amortized Cost Fair Value Due within one year $ 1,836 $ 1,844 $ 185 $ 185 Due after one year through five years 9,009 8,992 4,179 4,159 Due after five years through ten years 27,051 27,048 4,586 4,565 Due after ten years 84,092 83,318 10,539 10,281 $ 121,988 $ 121,202 $ 19,489 $ 19,190
Composition of Restricted Securities	The composition of restricted securities at March 31, 2019 and December 31, 2018 was as follows (in thousands): March 31, December 31, Federal Home Loan Bank stock $ 776 $ 763 Federal Reserve Bank stock 875 875 Community Bankers’ Bank stock 50 50 $ 1,701 $ 1,688

Loans (Tables)

Loans (Tables)	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
Summary of Loans	Loans at March 31, 2019 and December 31, 2018 are summarized as follows (in thousands): March 31, December 31, Real estate loans: Construction and land development $ 48,948 $ 45,867 Secured by 1-4 family residential 217,527 215,945 Other real estate loans 221,396 219,553 Commercial and industrial loans 46,045 44,605 Consumer and other loans 16,559 16,886 Total loans $ 550,475 $ 542,856 Allowance for loan losses (4,946 ) (5,009 ) Loans, net $ 545,529 $ 537,847
Summary of Loan Classes and an Aging of Past Due Loans	The following tables provide a summary of loan classes and an aging of past due loans as of March 31, 2019 and December 31, 2018 (in thousands): March 31, 2019 30-59 Days Past Due 60-89 Days Past Due > 90 Days Past Due Total Past Due Current Total Loans Non-accrual Loans 90 Days or More Past Due and Accruing Real estate loans: Construction and land development $ — $ — $ 80 $ 80 $ 48,868 $ 48,948 $ 398 $ — Secured by 1-4 family residential 493 — 575 1,068 216,459 217,527 989 115 Other real estate loans 403 — 477 880 220,516 221,396 528 — Commercial and industrial 54 2 2 58 45,987 46,045 — 2 Consumer and other loans 14 84 16 114 16,445 16,559 — 16 Total $ 964 $ 86 $ 1,150 $ 2,200 $ 548,275 $ 550,475 $ 1,915 $ 133 December 31, 2018 30-59 Days Past Due 60-89 Days Past Due > 90 Days Past Due Total Past Due Current Total Loans Non-accrual Loans 90 Days or More Past Due and Accruing Real estate loans: Construction and land development $ 88 $ 80 $ — $ 168 $ 45,699 $ 45,867 $ 327 $ — Secured by 1-4 family residential 747 393 423 1,563 214,382 215,945 663 — Other real estate loans 145 36 2,207 2,388 217,165 219,553 1,985 222 Commercial and industrial — 25 210 235 44,370 44,605 197 13 Consumer and other loans 90 — — 90 16,796 16,886 — — Total $ 1,070 $ 534 $ 2,840 $ 4,444 $ 538,412 $ 542,856 $ 3,172 $ 235
Analysis of the Credit Risk Profile of Each Loan Class	The following tables provide an analysis of the credit risk profile of each loan class as of March 31, 2019 and December 31, 2018 (in thousands): March 31, 2019 Pass Special Mention Substandard Doubtful Total Real estate loans: Construction and land development $ 48,151 $ 231 $ 566 $ — $ 48,948 Secured by 1-4 family residential 215,492 781 1,254 — 217,527 Other real estate loans 217,298 883 3,215 — 221,396 Commercial and industrial 46,018 15 12 — 46,045 Consumer and other loans 16,559 — — — 16,559 Total $ 543,518 $ 1,910 $ 5,047 $ — $ 550,475 December 31, 2018 Pass Special Mention Substandard Doubtful Total Real estate loans: Construction and land development $ 45,054 $ 235 $ 578 $ — $ 45,867 Secured by 1-4 family residential 214,089 924 932 — 215,945 Other real estate loans 213,681 900 4,972 — 219,553 Commercial and industrial 44,373 19 213 — 44,605 Consumer and other loans 16,886 — — — 16,886 Total $ 534,083 $ 2,078 $ 6,695 $ — $ 542,856

Allowance for Loan Losses (Tabl

Allowance for Loan Losses (Tables)	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
Allowance by Impairment Methodology and Loans by Impairment Methodology	The following tables present, as of March 31, 2019 , December 31, 2018 and March 31, 2018 , the total allowance for loan losses, the allowance by impairment methodology, and loans by impairment methodology (in thousands): March 31, 2019 Construction and Land Development Secured by 1-4 Family Residential Other Real Estate Commercial and Industrial Consumer and Other Loans Total Allowance for loan losses: Beginning Balance, December 31, 2018 $ 561 $ 895 $ 2,160 $ 464 $ 929 $ 5,009 Charge-offs — (49 ) — — (179 ) (228 ) Recoveries 50 2 — 2 111 165 Provision for (recovery of) loan losses (6 ) (82 ) 115 26 (53 ) — Ending Balance, March 31, 2019 $ 605 $ 766 $ 2,275 $ 492 $ 808 $ 4,946 Ending Balance: Individually evaluated for impairment 71 23 35 — — 129 Collectively evaluated for impairment 534 743 2,240 492 808 4,817 Loans: Ending Balance $ 48,948 $ 217,527 $ 221,396 $ 46,045 $ 16,559 $ 550,475 Individually evaluated for impairment 398 990 787 — — 2,175 Collectively evaluated for impairment 48,550 216,537 220,609 46,045 16,559 548,300 December 31, 2018 Construction and Land Development Secured by 1-4 Family Residential Other Real Estate Commercial and Industrial Consumer and Other Loans Total Allowance for loan losses: Beginning Balance, December 31, 2017 $ 414 $ 775 $ 2,948 $ 418 $ 771 $ 5,326 Charge-offs — (55 ) — (10 ) (1,104 ) (1,169 ) Recoveries — 13 5 8 226 252 Provision for (recovery of) loan losses 147 162 (793 ) 48 1,036 600 Ending Balance, December 31, 2018 $ 561 $ 895 $ 2,160 $ 464 $ 929 $ 5,009 Ending Balance: Individually evaluated for impairment 71 172 — — — 243 Collectively evaluated for impairment 490 723 2,160 464 929 4,766 Loans: Ending Balance $ 45,867 $ 215,945 $ 219,553 $ 44,605 $ 16,886 $ 542,856 Individually evaluated for impairment 327 663 2,249 197 — 3,436 Collectively evaluated for impairment 45,540 215,282 217,304 44,408 16,886 539,420 March 31, 2018 Construction and Land Development Secured by 1-4 Family Residential Other Real Estate Commercial and Industrial Consumer and Other Loans Total Allowance for loan losses: Beginning Balance, December 31, 2017 $ 414 $ 775 $ 2,948 $ 418 $ 771 $ 5,326 Charge-offs — (2 ) — (8 ) (196 ) (206 ) Recoveries — 3 1 1 47 52 Provision for (recovery of) loan losses (18 ) 2 18 40 58 100 Ending Balance, March 31, 2018 $ 396 $ 778 $ 2,967 $ 451 $ 680 $ 5,272 Ending Balance: Individually evaluated for impairment — — — — — — Collectively evaluated for impairment 396 778 2,967 451 680 5,272 Loans: Ending Balance $ 33,941 $ 208,338 $ 222,352 $ 39,253 $ 17,052 $ 520,936 Individually evaluated for impairment 874 1,332 1,263 61 — 3,530 Collectively evaluated for impairment 33,067 207,006 221,089 39,192 17,052 517,406
Impaired Loans and Related Allowance	Impaired loans and the related allowance at March 31, 2019 , December 31, 2018 and March 31, 2018 , were as follows (in thousands): March 31, 2019 Unpaid Principal Balance Recorded Investment with No Allowance Recorded Investment with Allowance Total Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized Real estate loans: Construction and land development $ 412 $ — $ 398 $ 398 $ 71 $ 326 $ 1 Secured by 1-4 family 1,055 836 154 990 23 661 2 Other real estate loans 792 752 35 787 35 1,329 7 Commercial and industrial — — — — — 90 — Total $ 2,259 $ 1,588 $ 587 $ 2,175 $ 129 $ 2,406 $ 10 December 31, 2018 Unpaid Principal Balance Recorded Investment with No Allowance Recorded Investment with Allowance Total Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized Real estate loans: Construction and land development $ 336 $ — $ 327 $ 327 $ 71 $ 758 $ 12 Secured by 1-4 family 720 356 307 663 172 966 22 Other real estate loans 2,290 2,249 — 2,249 — 1,585 51 Commercial and industrial 200 197 — 197 — 146 — Total $ 3,546 $ 2,802 $ 634 $ 3,436 $ 243 $ 3,455 $ 85 March 31, 2018 Unpaid Principal Balance Recorded Investment with No Allowance Recorded Investment with Allowance Total Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized Real estate loans: Construction and land development $ 992 $ 874 $ — $ 874 $ — $ 1,257 $ 13 Secured by 1-4 family 1,417 1,332 — 1,332 — 1,299 15 Other real estate loans 1,464 1,263 — 1,263 — 1,274 19 Commercial and industrial 74 61 — 61 — 64 1 Total $ 3,947 $ 3,530 $ — $ 3,530 $ — $ 3,894 $ 48

Other Real Estate Owned (OREO)

Other Real Estate Owned (OREO) (Tables)	3 Months Ended
	Mar. 31, 2019
Real Estate [Abstract]
Summary of Changes in the Balance for OREO	Changes in the balance for OREO are as follows (in thousands): Three Months Ended Year Ended March 31, December 31, Balance at the beginning of year, gross $ — $ 326 Transfers in — 68 Sales proceeds — (416 ) Gain on disposition — 22 Balance at the end of period, gross $ — $ — Less: valuation allowance — — Balance at the end of period, net $ — $ —

Capital Requirements (Tables)

Capital Requirements (Tables)	3 Months Ended
	Mar. 31, 2019
Regulatory Capital Requirements [Abstract]
Comparison of Capital of Company and Bank with Minimum Regulatory Guidelines	A comparison of the capital of the Bank at March 31, 2019 and December 31, 2018 with the minimum regulatory guidelines were as follows (dollars in thousands): Actual Minimum Capital Requirement Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio March 31, 2019 Total Capital (to Risk-Weighted Assets) $ 80,780 14.49 % $ 44,598 8.00 % $ 55,747 10.00 % Tier 1 Capital (to Risk-Weighted Assets) $ 75,834 13.60 % $ 33,448 6.00 % $ 44,598 8.00 % Common Equity Tier 1 Capital (to Risk-Weighted Assets) $ 75,834 13.60 % $ 25,086 4.50 % $ 36,236 6.50 % Tier 1 Capital (to Average Assets) $ 75,834 10.01 % $ 30,302 4.00 % $ 37,877 5.00 % December 31, 2018 Total Capital (to Risk-Weighted Assets) $ 74,697 13.62 % $ 43,859 8.00 % $ 54,824 10.00 % Tier 1 Capital (to Risk-Weighted Assets) $ 69,688 12.71 % $ 32,894 6.00 % $ 43,859 8.00 % Common Equity Tier 1 Capital (to Risk-Weighted Assets) $ 69,688 12.71 % $ 24,671 4.50 % $ 35,635 6.50 % Tier 1 Capital (to Average Assets) $ 69,688 9.26 % $ 30,100 4.00 % $ 37,625 5.00 %

Earnings per Common Share (Tabl

Earnings per Common Share (Tables)	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Share	The following table presents the computation of basic and diluted earnings per share for the three months ended March 31, 2019 and 2018 (dollars in thousands, except per share data): Three Months Ended March 31, 2019 March 31, 2018 (Numerator): Net income $ 2,261 $ 2,687 (Denominator): Weighted average shares outstanding – basic 4,960,264 4,949,112 Potentially dilutive common shares – restricted stock units 3,870 3,261 Weighted average shares outstanding – diluted 4,964,134 4,952,373 Income per common share Basic $ 0.46 $ 0.54 Diluted $ 0.46 $ 0.54

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Balances of Assets Measured at Fair Value on a Recurring Basis	The following tables present the balances of assets measured at fair value on a recurring basis as of March 31, 2019 and December 31, 2018 (in thousands). Fair Value Measurements at March 31, 2019 Description Balance as of March 31, Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Securities available for sale U.S. agency and mortgage-backed securities $ 95,566 $ — $ 95,566 $ — Obligations of states and political subdivisions 25,636 — 25,636 — $ 121,202 $ — $ 121,202 $ — Fair Value Measurements at December 31, 2018 Description Balance as of December 31, Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Securities available for sale U.S. agency and mortgage-backed securities $ 84,922 $ — $ 84,922 $ — Obligations of states and political subdivisions 14,935 — 14,935 $ 99,857 $ — $ 99,857 $ —
Summary of Assets Measured at Fair Value on a Nonrecurring Basis	The following tables summarize the Company’s assets that were measured at fair value on a nonrecurring basis during the periods (dollars in thousands): Fair Value Measurements at March 31, 2019 Description Balance as of March 31, Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Impaired loans, net $ 458 $ — $ — $ 458 Fair Value Measurements at December 31, 2018 Description Balance as of December 31, Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Impaired loans, net $ 391 $ — $ — $ 391
Quantitative Information about Level 3 Fair Value Measurements	Quantitative information about Level 3 Fair Value Measurements for March 31, 2019 Fair Value Valuation Technique Unobservable Input Range (Weighted-Average) Impaired loans, net $ 458 Property appraisals Selling cost 10 % Quantitative information about Level 3 Fair Value Measurements for December 31, 2018 Fair Value Valuation Technique Unobservable Input Range (Weighted-Average) Impaired loans, net $ 391 Property appraisals Selling cost 10 %
Carrying Values and Estimated Fair Values of Company's Financial Instruments	The carrying values and estimated fair values of the Company’s financial instruments at March 31, 2019 and December 31, 2018 are as follows (in thousands): Fair Value Measurements at March 31, 2019 Using Carrying Amount Quoted Prices in Active Markets for Identical Assets Level 1 Significant Other Observable Inputs Level 2 Significant Unobservable Inputs Level 3 Fair Value Financial Assets Cash and short-term investments $ 42,695 $ 42,695 $ — $ — $ 42,695 Securities available for sale 121,202 — 121,202 — 121,202 Securities held to maturity 19,489 — 17,677 1,513 19,190 Restricted securities 1,701 — 1,701 — 1,701 Loans held for sale 200 — 200 — 200 Loans, net 545,529 — — 541,176 541,176 Bank owned life insurance 17,094 — 17,094 — 17,094 Accrued interest receivable 2,143 — 2,143 — 2,143 Financial Liabilities Deposits $ 684,224 $ — $ 566,934 $ 115,492 $ 682,426 Other borrowings 5,000 — — 5,000 5,000 Subordinated debt 4,969 — — 5,127 5,127 Junior subordinated debt 9,279 — — 9,464 9,464 Accrued interest payable 157 — 157 — 157 Fair Value Measurements at December 31, 2018 Using Carrying Amount Quoted Prices in Active Markets for Identical Assets Level 1 Significant Other Observable Inputs Level 2 Significant Unobservable Inputs Level 3 Fair Value Financial Assets Cash and short-term investments $ 28,618 $ 28,618 $ — $ — $ 28,618 Securities available for sale 99,857 — 99,857 — 99,857 Securities held to maturity 43,408 — 40,885 1,509 42,394 Restricted securities 1,688 — 1,688 — 1,688 Loans held for sale 419 — 419 — 419 Loans, net 537,847 — — 528,643 528,643 Bank owned life insurance 13,991 — 13,991 — 13,991 Accrued interest receivable 2,113 — 2,113 — 2,113 Financial Liabilities Deposits $ 670,566 $ — $ 551,347 $ 117,220 $ 668,567 Subordinated debt 4,965 — — 5,035 5,035 Junior subordinated debt 9,279 — — 7,952 7,952 Accrued interest payable 139 — 139 — 139

Stock Compensation Plans (Table

Stock Compensation Plans (Tables)	3 Months Ended
	Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of Restricted Stock Units	A summary of the activity for the Company’s restricted stock units for the period indicated is presented in the following table: Three Months Ended March 31, 2019 Shares Weighted Average Grant Date Fair Value Unvested, beginning of year 7,103 $ 17.93 Granted 8,692 19.56 Vested (5,402 ) 17.99 Forfeited — — Unvested, end of period 10,393 $ 19.26

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Schedule of Changes in Component of Accumulated Other Comprehensive Loss	Changes in each component of accumulated other comprehensive loss were as follows (in thousands): Net Unrealized Gains (Losses) on Securities Adjustments Related to Pension Benefits Accumulated Other Comprehensive Loss Balance at December 31, 2017 $ (1,057 ) $ 99 $ (958 ) Unrealized holding losses (net of tax, ($229)) (862 ) — (862 ) Pension liability adjustment (net of tax, ($27)) — (99 ) (99 ) Change during period (862 ) (99 ) (961 ) Balance at March 31, 2018 $ (1,919 ) $ — $ (1,919 ) Balance at December 31, 2018 $ (1,808 ) $ — $ (1,808 ) Unrealized holding gains (net of tax, $407) 1,528 — 1,528 Unrealized holding losses transferred from held to maturity to available for sale (net of tax, ($91)) (340 ) — (340 ) Change during period 1,188 — 1,188 Balance at March 31, 2019 $ (620 ) $ — $ (620 )

Revenue Recognition (Tables)

Revenue Recognition (Tables)	3 Months Ended
	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Schedule of Noninterest Income, Segregated by Revenue Streams In-Scope and Out-of-Scope of Topic 606	The following table presents noninterest income, segregated by revenue streams in-scope and out-of-scope of Topic 606, for the three months ended March 31, 2019 and 2018 (in thousands): Three Months Ended March 31, 2019 March 31, 2018 Noninterest Income Service charges on deposit accounts $ 701 $ 762 ATM and check card fees 517 519 Wealth management fees 437 407 Fees for other customer services 175 153 Noninterest income (in-scope of Topic 606) $ 1,830 $ 1,841 Noninterest income (out-of-scope of Topic 606) 155 792 Total noninterest income $ 1,985 $ 2,633

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Schedule of Operating Lease Right-of-use Asset and Operating Liability	The following table presents the operating lease right-of-use asset and operating lease liability as of March 31, 2019 (in thousands): Classification in the Consolidated Balance Sheet March 31, 2019 Operating lease right-of-use asset Other assets $ 360 Operating lease liability Accrued interest payable and other liabilities 359
Schedule of Lease Cost and Additional Information Related to Operating Leases	The following table presents the weighted average remaining operating lease term and the weighted average discount rate for operating leases as of March 31, 2019 (dollars in thousands): March 31, 2019 Weighted average remaining lease term, in years 3.3 Weighted average discount rate 2.79 % The following table presents the components of operating lease expense and supplemental cash flow information for the three months ended March 31, 2019 (in thousands): Three Months Ended March 31, 2019 March 31, 2018 Lease Expense Operating lease expense $ 33 $ N/A Short-term lease expense 2 N/A Total lease expense (1) $ 35 $ 39 Cash paid for amounts included in lease liability $ 34 $ N/A (1) Included in occupancy expense in the Company's consolidated statements of income.
Schedule of Maturity of Undiscounted Cash Flows	The following table presents a maturity schedule of undiscounted cash flows that contribute to the operating lease liability as of March 31, 2019 (in thousands): March 31, 2019 Nine months ending December 31, 2019 $ 102 Twelve months ending December 31, 2020 112 Twelve months ending December 31, 2021 89 Twelve months ending December 31, 2022 65 Twelve months ending December 31, 2023 8 Total undiscounted cash flows $ 376 Less: discount (17 ) Operating lease liability $ 359

General (Details)

General (Details) - USD ($) $ in Thousands	Jan. 01, 2019	Mar. 31, 2019	Mar. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Unrealized losses on securities transferred from held to maturity to available for sale		$ 431	$ 0
Accounting Standards Update 2017-12
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Securities available for sale	$ 23,400
Held-to-maturity securities	23,400
Unrealized losses on securities transferred from held to maturity to available for sale	$ 431	$ 431

Securities - Summary of Amortiz

Securities - Summary of Amortized Costs and Fair Values of Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Securities available for sale:
Amortized Cost	$ 121,988	$ 102,147
Gross Unrealized Gains	448	75
Gross Unrealized (Losses)	(1,234)	(2,365)
Fair Value	121,202	99,857
Securities held to maturity:
Amortized Cost	19,489	43,408
Gross Unrealized Gains	35	29
Gross Unrealized (Losses)	(334)	(1,043)
Fair Value	19,190	42,394	[1]
Total securities, Amortized cost	141,477	145,555
Total securities, Gross unrealized gains	483	104
Total securities, Gross unrealized (losses)	(1,568)	(3,408)
Total securities, Fair value	140,392	142,251
U.S. agency and mortgage-backed securities
Securities available for sale:
Amortized Cost	96,345	86,944
Gross Unrealized Gains	295	44
Gross Unrealized (Losses)	(1,074)	(2,066)
Fair Value	95,566	84,922
Securities held to maturity:
Amortized Cost	14,193	27,420
Gross Unrealized Gains	0	0
Gross Unrealized (Losses)	(332)	(869)
Fair Value	13,861	26,551
Obligations of states and political subdivisions
Securities available for sale:
Amortized Cost	25,643	15,203
Gross Unrealized Gains	153	31
Gross Unrealized (Losses)	(160)	(299)
Fair Value	25,636	14,935
Securities held to maturity:
Amortized Cost	3,796	14,488
Gross Unrealized Gains	22	20
Gross Unrealized (Losses)	(2)	(174)
Fair Value	3,816	14,334
Corporate debt securities
Securities held to maturity:
Amortized Cost	1,500	1,500
Gross Unrealized Gains	13	9
Gross Unrealized (Losses)	0	0
Fair Value	$ 1,513	$ 1,509
[1]	Derived from audited consolidated financial statements.

Securities - Summary of Investm

Securities - Summary of Investments in an Unrealized Loss Position that were Temporarily Impaired (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Securities available for sale:
Less than 12 months - Fair value	$ 369	$ 30,111
Less than 12 months - Unrealized (loss)	(2)	(240)
12 months or more - Fair value	69,174	54,779
12 months or more - Unrealized (loss)	(1,232)	(2,125)
Fair Value	69,543	84,890
Unrealized (Loss)	(1,234)	(2,365)
Securities held to maturity:
Less than 12 months - Fair value	0	5,326
Less than 12 months - Unrealized (loss)	0	(37)
12 months or more - Fair value	14,622	32,666
12 months or more - Unrealized (loss)	(334)	(1,006)
Fair Value	14,622	37,992
Unrealized (Loss)	(334)	(1,043)
Total securities, Less than 12 months - Fair value	369	35,437
Total securities, Less than 12 months - Unrealized (loss)	(2)	(277)
Total securities, 12 months or more - Fair value	83,796	87,445
Total securities, 12 months or more - Unrealized (loss)	(1,566)	(3,131)
Total securities, Total fair value	84,165	122,882
Total unrealized (loss)	(1,568)	(3,408)
U.S. agency and mortgage-backed securities
Securities available for sale:
Less than 12 months - Fair value	369	26,350
Less than 12 months - Unrealized (loss)	(2)	(215)
12 months or more - Fair value	60,381	49,652
12 months or more - Unrealized (loss)	(1,072)	(1,851)
Fair Value	60,750	76,002
Unrealized (Loss)	(1,074)	(2,066)
Securities held to maturity:
Less than 12 months - Fair value	0	0
Less than 12 months - Unrealized (loss)	0	0
12 months or more - Fair value	13,861	26,551
12 months or more - Unrealized (loss)	(332)	(869)
Fair Value	13,861	26,551
Unrealized (Loss)	(332)	(869)
Obligations of states and political subdivisions
Securities available for sale:
Less than 12 months - Fair value	0	3,761
Less than 12 months - Unrealized (loss)	0	(25)
12 months or more - Fair value	8,793	5,127
12 months or more - Unrealized (loss)	(160)	(274)
Fair Value	8,793	8,888
Unrealized (Loss)	(160)	(299)
Securities held to maturity:
Less than 12 months - Fair value	0	5,326
Less than 12 months - Unrealized (loss)	0	(37)
12 months or more - Fair value	761	6,115
12 months or more - Unrealized (loss)	(2)	(137)
Fair Value	761	11,441
Unrealized (Loss)	$ (2)	$ (174)

Securities - Narrative (Detail)

Securities - Narrative (Detail)	Jan. 01, 2019USD ($)	Mar. 31, 2019USD ($)Security	Mar. 31, 2018USD ($)	Dec. 31, 2018USD ($)Security
Schedule of Available-for-sale Securities [Line Items]
Percentage of investment portfolio		100.00%		100.00%
Weighted-average period of re-pricing of portfolio		4 years 2 months 12 days		4 years 7 months 12 days
Fair value of securities transferred from held to maturity to available for sale		$ (19,190,000)		$ (42,394,000)	[1]
Fair value of securities transferred from held-to-maturity to available-for-sale		121,202,000		$ 99,857,000
Unrealized losses on securities transferred from held to maturity to available for sale		431,000	$ 0
Impairment recognized		$ 0
U.S. agency and mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Number of securities in an unrealized loss position | Security		66		83
Total number of securities | Security		90		90
Fair value of securities transferred from held to maturity to available for sale		$ (13,861,000)		$ (26,551,000)
Fair value of securities transferred from held-to-maturity to available-for-sale		$ 95,566,000		$ 84,922,000
Obligations of states and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Number of securities in an unrealized loss position | Security		26		56
Total number of securities | Security		82		82
Fair value of securities transferred from held to maturity to available for sale		$ (3,816,000)		$ (14,334,000)
Fair value of securities transferred from held-to-maturity to available-for-sale		25,636,000		14,935,000
Corporate debt securities
Schedule of Available-for-sale Securities [Line Items]
Fair value of securities transferred from held to maturity to available for sale		(1,513,000)		$ (1,509,000)
Accounting Standards Update 2017-12
Schedule of Available-for-sale Securities [Line Items]
Fair value of securities transferred from held to maturity to available for sale	$ 23,000,000
Fair value of securities transferred from held-to-maturity to available-for-sale	23,000,000
Unrealized losses on securities transferred from held to maturity to available for sale	$ 431,000	$ 431,000
[1]	Derived from audited consolidated financial statements.

Securities - Amortized Cost and

Securities - Amortized Cost and Fair Value of Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	[1]
Amortized Cost
Due within one year	$ 1,836
Due after one year through five years	9,009
Due after five years through ten years	27,051
Due after ten years	84,092
Amortized Cost	121,988
Fair Value
Due within one year	1,844
Due after one year through five years	8,992
Due after five years through ten years	27,048
Due after ten years	83,318
Fair Value	121,202	$ 99,857
Amortized Cost
Due within one year	185
Due after one year through five years	4,179
Due after five years through ten years	4,586
Due after ten years	10,539
Amortized Cost	19,489	43,408
Fair Value
Due within one year	185
Due after one year through five years	4,159
Due after five years through ten years	4,565
Due after ten years	10,281
Fair Value	$ 19,190	$ 42,394
[1]	Derived from audited consolidated financial statements.

Securities - Composition of Res

Securities - Composition of Restricted Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Federal Home Loan Bank stock	$ 776	$ 763
Federal Reserve Bank stock	875	875
Community Bankers’ Bank stock	50	50
Total restricted securities	$ 1,701	$ 1,688	[1]
[1]	Derived from audited consolidated financial statements.

Loans - Summary of Loans (Detai

Loans - Summary of Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018		Mar. 31, 2018	Dec. 31, 2017
Real estate loans:
Loans	$ 550,475	$ 542,856		$ 520,936
Allowance for loan losses	(4,946)	(5,009)	[1]	(5,272)	$ (5,326)
Loans, net	545,529	537,847	[1]
Real estate loans | Construction and land development
Real estate loans:
Loans	48,948	45,867		33,941
Allowance for loan losses	(605)	(561)		(396)	(414)
Real estate loans | Secured by 1-4 family residential
Real estate loans:
Loans	217,527	215,945		208,338
Allowance for loan losses	(766)	(895)		(778)	(775)
Real estate loans | Other real estate loans
Real estate loans:
Loans	221,396	219,553		222,352
Allowance for loan losses	(2,275)	(2,160)		(2,967)	(2,948)
Commercial and industrial loans
Real estate loans:
Loans	46,045	44,605		39,253
Allowance for loan losses	(492)	(464)		(451)	(418)
Consumer and other loans
Real estate loans:
Loans	16,559	16,886		17,052
Allowance for loan losses	$ (808)	$ (929)		$ (680)	$ (771)
[1]	Derived from audited consolidated financial statements.

Loans - Narrative (Detail)

Loans - Narrative (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Financing Receivable, Recorded Investment [Line Items]
Net deferred loan fees and costs	$ 287	$ 274
Total Loans	550,475	542,856	$ 520,936
Consumer and other loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans	16,559	16,886	$ 17,052
Consumer and other loans | Demand deposit overdrafts
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 204	$ 275

Loans - Summary of Loan Classes

Loans - Summary of Loan Classes and an Aging of Past Due Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 2,200	$ 4,444
Current	548,275	538,412
Total Loans	550,475	542,856	$ 520,936
Non-accrual Loans	1,915	3,172
90 Days or More Past Due and Accruing	133	235
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	964	1,070
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	86	534
90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,150	2,840
Real estate loans | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	80	168
Current	48,868	45,699
Total Loans	48,948	45,867	33,941
Non-accrual Loans	398	327
90 Days or More Past Due and Accruing	0	0
Real estate loans | Secured by 1-4 family residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,068	1,563
Current	216,459	214,382
Total Loans	217,527	215,945	208,338
Non-accrual Loans	989	663
90 Days or More Past Due and Accruing	115	0
Real estate loans | Other real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	880	2,388
Current	220,516	217,165
Total Loans	221,396	219,553	222,352
Non-accrual Loans	528	1,985
90 Days or More Past Due and Accruing	0	222
Real estate loans | 30-59 Days Past Due | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	88
Real estate loans | 30-59 Days Past Due | Secured by 1-4 family residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	493	747
Real estate loans | 30-59 Days Past Due | Other real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	403	145
Real estate loans | 60-89 Days Past Due | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	80
Real estate loans | 60-89 Days Past Due | Secured by 1-4 family residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	393
Real estate loans | 60-89 Days Past Due | Other real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	36
Real estate loans | 90 Days Past Due | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	80	0
Real estate loans | 90 Days Past Due | Secured by 1-4 family residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	575	423
Real estate loans | 90 Days Past Due | Other real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	477	2,207
Commercial and industrial loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	58	235
Current	45,987	44,370
Total Loans	46,045	44,605	39,253
Non-accrual Loans	0	197
90 Days or More Past Due and Accruing	2	13
Commercial and industrial loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	54	0
Commercial and industrial loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2	25
Commercial and industrial loans | 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2	210
Consumer and other loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	114	90
Current	16,445	16,796
Total Loans	16,559	16,886	$ 17,052
Non-accrual Loans	0	0
90 Days or More Past Due and Accruing	16	0
Consumer and other loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	14	90
Consumer and other loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	84	0
Consumer and other loans | 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 16	$ 0

Loans - Analysis of the Credit

Loans - Analysis of the Credit Risk Profile of Each Loan Class (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 550,475	$ 542,856	$ 520,936
Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	543,518	534,083
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,910	2,078
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	5,047	6,695
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Real estate loans | Construction and land development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	48,948	45,867	33,941
Real estate loans | Secured by 1-4 family residential
Financing Receivable, Recorded Investment [Line Items]
Total Loans	217,527	215,945	208,338
Real estate loans | Other real estate loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans	221,396	219,553	222,352
Real estate loans | Pass | Construction and land development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	48,151	45,054
Real estate loans | Pass | Secured by 1-4 family residential
Financing Receivable, Recorded Investment [Line Items]
Total Loans	215,492	214,089
Real estate loans | Pass | Other real estate loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans	217,298	213,681
Real estate loans | Special Mention | Construction and land development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	231	235
Real estate loans | Special Mention | Secured by 1-4 family residential
Financing Receivable, Recorded Investment [Line Items]
Total Loans	781	924
Real estate loans | Special Mention | Other real estate loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans	883	900
Real estate loans | Substandard | Construction and land development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	566	578
Real estate loans | Substandard | Secured by 1-4 family residential
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,254	932
Real estate loans | Substandard | Other real estate loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans	3,215	4,972
Real estate loans | Doubtful | Construction and land development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Real estate loans | Doubtful | Secured by 1-4 family residential
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Real estate loans | Doubtful | Other real estate loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Commercial and industrial loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans	46,045	44,605	39,253
Commercial and industrial loans | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	46,018	44,373
Commercial and industrial loans | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	15	19
Commercial and industrial loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	12	213
Commercial and industrial loans | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Consumer and other loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans	16,559	16,886	$ 17,052
Consumer and other loans | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	16,559	16,886
Consumer and other loans | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Consumer and other loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Consumer and other loans | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 0	$ 0

Allowance for Loan Losses - All

Allowance for Loan Losses - Allowance by Impairment Methodology and Loans by Impairment Methodology (Detail) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	Mar. 31, 2019		Mar. 31, 2018	Dec. 31, 2018
Allowance for loan losses:
Beginning Balance	$ 5,009	[1]	$ 5,326	$ 5,326
Charge-offs	(228)		(206)	(1,169)
Recoveries	165		52	252
Provision for (recovery of) loan losses	0		100	600
Ending Balance	4,946		5,272	5,009	[1]
Ending Balance:
Allowance for loan losses, Individually evaluated for impairment	129		0	243
Allowance for loan losses, Collectively evaluated for impairment	4,817		5,272	4,766
Loans:
Total Loans	550,475		520,936	542,856
Losses, Individually evaluated for impairment	2,175		3,530	3,436
Losses, Collectively evaluated for impairment	548,300		517,406	539,420
Real estate loans | Construction and Land Development
Allowance for loan losses:
Beginning Balance	561		414	414
Charge-offs	0		0	0
Recoveries	50		0	0
Provision for (recovery of) loan losses	(6)		(18)	147
Ending Balance	605		396	561
Ending Balance:
Allowance for loan losses, Individually evaluated for impairment	71		0	71
Allowance for loan losses, Collectively evaluated for impairment	534		396	490
Loans:
Total Loans	48,948		33,941	45,867
Losses, Individually evaluated for impairment	398		874	327
Losses, Collectively evaluated for impairment	48,550		33,067	45,540
Real estate loans | Secured by 1-4 Family Residential
Allowance for loan losses:
Beginning Balance	895		775	775
Charge-offs	(49)		(2)	(55)
Recoveries	2		3	13
Provision for (recovery of) loan losses	(82)		2	162
Ending Balance	766		778	895
Ending Balance:
Allowance for loan losses, Individually evaluated for impairment	23		0	172
Allowance for loan losses, Collectively evaluated for impairment	743		778	723
Loans:
Total Loans	217,527		208,338	215,945
Losses, Individually evaluated for impairment	990		1,332	663
Losses, Collectively evaluated for impairment	216,537		207,006	215,282
Real estate loans | Other Real Estate
Allowance for loan losses:
Beginning Balance	2,160		2,948	2,948
Charge-offs	0		0	0
Recoveries	0		1	5
Provision for (recovery of) loan losses	115		18	(793)
Ending Balance	2,275		2,967	2,160
Ending Balance:
Allowance for loan losses, Individually evaluated for impairment	35		0	0
Allowance for loan losses, Collectively evaluated for impairment	2,240		2,967	2,160
Loans:
Total Loans	221,396		222,352	219,553
Losses, Individually evaluated for impairment	787		1,263	2,249
Losses, Collectively evaluated for impairment	220,609		221,089	217,304
Commercial and industrial loans
Allowance for loan losses:
Beginning Balance	464		418	418
Charge-offs	0		(8)	(10)
Recoveries	2		1	8
Provision for (recovery of) loan losses	26		40	48
Ending Balance	492		451	464
Ending Balance:
Allowance for loan losses, Individually evaluated for impairment	0		0	0
Allowance for loan losses, Collectively evaluated for impairment	492		451	464
Loans:
Total Loans	46,045		39,253	44,605
Losses, Individually evaluated for impairment	0		61	197
Losses, Collectively evaluated for impairment	46,045		39,192	44,408
Consumer and other loans
Allowance for loan losses:
Beginning Balance	929		771	771
Charge-offs	(179)		(196)	(1,104)
Recoveries	111		47	226
Provision for (recovery of) loan losses	(53)		58	1,036
Ending Balance	808		680	929
Ending Balance:
Allowance for loan losses, Individually evaluated for impairment	0		0	0
Allowance for loan losses, Collectively evaluated for impairment	808		680	929
Loans:
Total Loans	16,559		17,052	16,886
Losses, Individually evaluated for impairment	0		0	0
Losses, Collectively evaluated for impairment	$ 16,559		$ 17,052	$ 16,886
[1]	Derived from audited consolidated financial statements.

Allowance for Loan Losses - Imp

Allowance for Loan Losses - Impaired Loans and Related Allowance (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	$ 2,259	$ 3,947	$ 3,546
Recorded Investment with No Allowance	1,588	3,530	2,802
Recorded Investment with Allowance	587	0	634
Total Recorded Investment	2,175	3,530	3,436
Related Allowance	129	0	243
Average Recorded Investment	2,406	3,894	3,455
Interest Income Recognized	10	48	85
Real estate loans | Construction and Land Development
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	412	992	336
Recorded Investment with No Allowance	0	874	0
Recorded Investment with Allowance	398	0	327
Total Recorded Investment	398	874	327
Related Allowance	71	0	71
Average Recorded Investment	326	1,257	758
Interest Income Recognized	1	13	12
Real estate loans | Secured by 1-4 Family Residential
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	1,055	1,417	720
Recorded Investment with No Allowance	836	1,332	356
Recorded Investment with Allowance	154	0	307
Total Recorded Investment	990	1,332	663
Related Allowance	23	0	172
Average Recorded Investment	661	1,299	966
Interest Income Recognized	2	15	22
Real estate loans | Other real estate loans
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	792	1,464	2,290
Recorded Investment with No Allowance	752	1,263	2,249
Recorded Investment with Allowance	35	0	0
Total Recorded Investment	787	1,263	2,249
Related Allowance	35	0	0
Average Recorded Investment	1,329	1,274	1,585
Interest Income Recognized	7	19	51
Commercial and industrial loans
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	0	74	200
Recorded Investment with No Allowance	0	61	197
Recorded Investment with Allowance	0	0	0
Total Recorded Investment	0	61	197
Related Allowance	0	0	0
Average Recorded Investment	90	64	146
Interest Income Recognized	$ 0	$ 1	$ 0

Allowance for Loan Losses - Nar

Allowance for Loan Losses - Narrative (Detail)	3 Months Ended
	Mar. 31, 2019USD ($)Contract	Mar. 31, 2018USD ($)Contract	Dec. 31, 2018USD ($)
Allowance For Loan Losses [Line Items]
TDRs performing under the restructured terms	$ 649,000		$ 467,000
Loans modified under TDRs | Contract		0
Troubled debt restructuring loan subsequent default	$ 0	$ 0
Troubled debt restructuring loan subsequent default period	90 days
Performing financing receivable
Allowance For Loan Losses [Line Items]
TDRs performing under the restructured terms	$ 259,000		$ 264,000
Secured by 1-4 family residential | Real estate loans
Allowance For Loan Losses [Line Items]
Loans modified under TDRs | Contract	1

Other Real Estate Owned (OREO_2

Other Real Estate Owned (OREO) - Summary of Changes in the Balance for OREO (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Real Estate [Abstract]
Balance at the beginning of year, gross	$ 0	$ 326
Transfers in	0	68
Sales proceeds	0	(416)
Gain on disposition	0	22
Balance at the end of period, gross	0	0
Less: valuation allowance	0	0
Balance at the end of period, net	$ 0	$ 0

Other Real Estate Owned (OREO_3

Other Real Estate Owned (OREO) - Narrative (Detail) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2017
Other Real Estate [Line Items]
Residential real estate carrying amount included in OREO	$ 0		$ 0	$ 326,000
Consumer mortgage loans secured by residential real estate properties in the process of formal foreclosure	149,000
Net expenses applicable to other real estate owned	0	$ 1,000	2,000
Residential real estate properties
Other Real Estate [Line Items]
Residential real estate carrying amount included in OREO	$ 0		$ 0

Other Borrowings (Detail)

Other Borrowings (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Other borrowings	$ 5,000,000	$ 0	[1]
Unused lines of credit	$ 142,700,000	128,500,000
Blanket floating lien agreement	19.00%
Collateral pledged on borrowings including real estate loans	$ 122,800,000	110,800,000
FHLB stock book value	776,000	763,000
Borrowings from FHLB	0	$ 0
FHLB
Debt Instrument [Line Items]
Unused lines of credit	85,900,000
Line of Credit | Unsecured line of credit
Debt Instrument [Line Items]
Unsecured line of credit	5,000,000
Other borrowings	$ 5,000,000
Prime Rate | Line of Credit | Unsecured line of credit
Debt Instrument [Line Items]
Interest rate	0.25%
[1]	Derived from audited consolidated financial statements.

Capital Requirements - Narrativ

Capital Requirements - Narrative (Detail)	3 Months Ended
	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Jan. 01, 2018	Jan. 01, 2017	Jan. 01, 2016
Regulatory Capital Requirements [Abstract]
Capital conservation buffer period	4 years
Capital conservation buffer percentage	2.50%	0.625%	1.875%	0.625%	0.625%	0.625%
Capital conservation buffer percentage maintained at bank	6.49%		5.62%

Capital Requirements - Comparis

Capital Requirements - Comparison of Capital of Company and Bank with Minimum Regulatory Guidelines (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Regulatory Capital Requirements [Abstract]
Actual amount total capital (to risk weighted assets)	$ 80,780	$ 74,697
Actual ratio total capital (to risk weighted assets)	14.49%	13.62%
Minimum capital requirement amount total capital (to risk weighted assets)	$ 44,598	$ 43,859
Minimum capital requirement ratio total capital (to risk weighted assets)	8.00%	8.00%
Minimum to be well capitalized under prompt corrective action provisions amount total capital (to risk weighted assets)	$ 55,747	$ 54,824
Minimum to be well capitalized under prompt corrective action provisions ratio total capital (to risk weighted assets)	10.00%	10.00%
Actual amount Tier 1 capital (to risk weighted assets)	$ 75,834	$ 69,688
Actual ratio Tier 1 capital (to risk weighted assets)	13.60%	12.71%
Minimum capital requirement amount Tier 1 capital (to risk weighted assets)	$ 33,448	$ 32,894
Minimum capital requirement ratio Tier 1 capital (to risk weighted assets)	6.00%	6.00%
Minimum to be well capitalized under prompt corrective action provisions amount Tier 1 capital (to risk weighted assets)	$ 44,598	$ 43,859
Minimum to be well capitalized under prompt corrective action provisions ratio Tier 1 capital (to risk weighted assets)	8.00%	8.00%
Actual amount common equity Tier 1 capital (to risk weighted assets)	$ 75,834	$ 69,688
Actual ratio common equity Tier 1 capital (to risk weighted assets)	13.60%	12.71%
Minimum capital requirement amount common equity Tier 1 capital (to risk weighted assets)	$ 25,086	$ 24,671
Minimum capital requirement ratio common equity Tier 1 capital (to risk weighted assets)	4.50%	4.50%
Minimum to be well capitalized under prompt corrective action provisions amount common equity Tier 1 capital (to risk weighted assets)	$ 36,236	$ 35,635
Minimum to be well capitalized under prompt corrective action provisions ratio common equity Tier 1 capital (to risk weighted assets)	6.50%	6.50%
Actual amount Tier 1 capital (to average assets)	$ 75,834	$ 69,688
Actual ratio Tier 1 capital (to average assets)	10.01%	9.26%
Minimum capital requirement amount Tier 1 capital (to average assets)	$ 30,302	$ 30,100
Minimum capital requirement ratio Tier 1 capital (to average assets)	4.00%	4.00%
Minimum to be well capitalized under prompt corrective action provisions amount Tier 1 capital (to average assets)	$ 37,877	$ 37,625
Minimum to be well capitalized under prompt corrective action provisions ratio Tier 1 capital (to average assets)	5.00%	5.00%

Subordinated Debt - Narrative (

Subordinated Debt - Narrative (Detail) - 6.75% fixed interest subordinate term note - USD ($)	Mar. 31, 2019	Dec. 31, 2018	Oct. 30, 2015
Subordinated Borrowing [Line Items]
Aggregate principal amount			$ 5,000,000
Fixed interest rate			6.75%
Unamortized debt issuance costs	$ 31,000	$ 35,000

Junior Subordinated Debt - Narr

Junior Subordinated Debt - Narrative (Detail) - USD ($) $ in Millions	Jul. 31, 2006	Jun. 17, 2004	Mar. 31, 2019	Dec. 31, 2018
First National (VA) Statutory Trust II
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Issuance of trust preferred securities		$ 5
LIBOR-indexed floating rate of interest			5.21%	5.39%
Junior subordinated debt			$ 5.2
First National (VA) Statutory Trust III
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Issuance of trust preferred securities	$ 4
LIBOR-indexed floating rate of interest			4.40%	4.00%
Junior subordinated debt			$ 4.1
Maximum capital required for capital adequacy			25.00%

Benefit Plans (Detail)

Benefit Plans (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)payment	Mar. 31, 2018USD ($)	Mar. 15, 2019employee
Defined Benefit Plan Disclosure [Line Items]
Percentage of first employee compensation for which company makes matching contribution	1.00%
Company contribution on employee specific contribution	50.00%
Number of hours in service required for the contribution to be allocated	1000 hours
Minimum eligibility for employees under 401(k) Plan age	19 years
Number of plan service years after which employer matching contribution best	2 years
Expense attributable to the Plan amounted	$ 247	$ 233
Minimum
Defined Benefit Plan Disclosure [Line Items]
Percentage of employee for which company makes specified contribution	2.00%
Maximum
Defined Benefit Plan Disclosure [Line Items]
Percentage of employee for which company makes specified contribution	6.00%
Supplemental Executive Retirement Plans and Participation Agreements
Defined Benefit Plan Disclosure [Line Items]
Expense attributable to the Plan amounted	$ 23
Number of employees | employee			3
Number of monthly installments for retirement benefits payable | payment	180

Earnings per Common Share - Com

Earnings per Common Share - Computation of Basic and Diluted Earnings per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Numerator [Abstract]
Net income	$ 2,261	$ 2,687
Denominator [Abstract]
Weighted average shares outstanding – basic (in shares)	4,960,264	4,949,112
Potentially dilutive common shares – restricted stock units (in shares)	3,870	3,261
Weighted average shares outstanding – diluted (in shares)	4,964,134	4,952,373
Income per common share
Basic (in usd per share)	$ 0.46	$ 0.54
Diluted (in usd per share)	$ 0.46	$ 0.54

Fair Value Measurements - Balan

Fair Value Measurements - Balances of Assets Measured at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 121,202	$ 99,857
U.S. agency and mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	95,566	84,922
Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	25,636	14,935
Recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	121,202	99,857
Recurring basis | U.S. agency and mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	95,566	84,922
Recurring basis | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	25,636	14,935
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. agency and mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Recurring basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	121,202	99,857
Recurring basis | Significant Other Observable Inputs (Level 2) | U.S. agency and mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	95,566	84,922
Recurring basis | Significant Other Observable Inputs (Level 2) | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	25,636	14,935
Recurring basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Recurring basis | Significant Unobservable Inputs (Level 3) | U.S. agency and mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Recurring basis | Significant Unobservable Inputs (Level 3) | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 0

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Detail) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Loans held for sale | Nonrecurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Non recurring fair value adjustments on loans held for sale	$ 0	$ 0
Maximum
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Period under consideration for valuation of real estate collateral	12 months
Period under consideration for valuation of business equipment	1 year
Minimum
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Period under consideration for valuation of house or building in the process of construction	1 year

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Assets Measured at Fair Value on a Nonrecurring Basis (Detail) - Impaired Loans Asset Net - Nonrecurring basis - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans, net	$ 458	$ 391
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans, net	0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans, net	0	0
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans, net	$ 458	$ 391

Fair Value Measurements - Quant

Fair Value Measurements - Quantitative Information about Level 3 Fair Value Measurements (Detail) - Nonrecurring basis - Impaired loans, net - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 458		$ 391
Significant Unobservable Inputs (Level 3)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 458		$ 391
Range (Weighted-Average)	10.00%	10.00%

Fair Value Measurements - Carry

Fair Value Measurements - Carrying Values and Estimated Fair Values of Company's Financial Instruments (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Financial Assets
Fair Value	$ 121,202	$ 99,857
Securities held to maturity	19,190	42,394	[1]
Restricted securities	1,701	1,688	[1]
Bank owned life insurance	17,094	13,991	[1]
Accrued interest receivable	2,143	2,113	[1]
Carrying Amount
Financial Assets
Cash and short-term investments	42,695	28,618
Fair Value	121,202	99,857
Securities held to maturity	19,489	43,408
Restricted securities	1,701	1,688
Loans held for sale	200	419
Loans, net	545,529	537,847
Bank owned life insurance	17,094	13,991
Accrued interest receivable	2,143	2,113
Financial Liabilities
Deposits	684,224	670,566
Other borrowings	5,000
Subordinated debt	4,969	4,965
Junior subordinated debt	9,279	9,279
Accrued interest payable	157	139
Fair Value
Financial Assets
Cash and short-term investments	42,695	28,618
Fair Value	121,202	99,857
Securities held to maturity	19,190	42,394
Restricted securities	1,701	1,688
Loans held for sale	200	419
Loans, net	541,176	528,643
Bank owned life insurance	17,094	13,991
Accrued interest receivable	2,143	2,113
Financial Liabilities
Deposits	682,426	668,567
Other borrowings	5,000
Subordinated debt	5,127	5,035
Junior subordinated debt	9,464	7,952
Accrued interest payable	157	139
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value
Financial Assets
Cash and short-term investments	42,695	28,618
Fair Value	0	0
Securities held to maturity	0	0
Restricted securities	0	0
Loans held for sale	0	0
Loans, net	0	0
Bank owned life insurance	0	0
Accrued interest receivable	0	0
Financial Liabilities
Deposits	0	0
Other borrowings	0
Subordinated debt	0	0
Junior subordinated debt	0	0
Accrued interest payable	0	0
Significant Other Observable Inputs (Level 2) | Fair Value
Financial Assets
Cash and short-term investments	0	0
Fair Value	121,202	99,857
Securities held to maturity	17,677	40,885
Restricted securities	1,701	1,688
Loans held for sale	200	419
Loans, net	0	0
Bank owned life insurance	17,094	13,991
Accrued interest receivable	2,143	2,113
Financial Liabilities
Deposits	566,934	551,347
Other borrowings	0
Subordinated debt	0	0
Junior subordinated debt	0	0
Accrued interest payable	157	139
Significant Unobservable Inputs (Level 3) | Fair Value
Financial Assets
Cash and short-term investments	0	0
Fair Value	0	0
Securities held to maturity	1,513	1,509
Restricted securities	0	0
Loans held for sale	0	0
Loans, net	541,176	528,643
Bank owned life insurance	0	0
Accrued interest receivable	0	0
Financial Liabilities
Deposits	115,492	117,220
Other borrowings	5,000
Subordinated debt	5,127	5,035
Junior subordinated debt	9,464	7,952
Accrued interest payable	$ 0	$ 0
[1]	Derived from audited consolidated financial statements.

Stock Compensation Plans - Narr

Stock Compensation Plans - Narrative (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	May 13, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense related to stock awards	$ 0	$ 0
Stock-based compensation	$ 43,000	$ 70,000
2014 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)				240,000
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards granted in the period (in shares)	8,692	8,692
Restricted stock units, vested (in shares)	5,402
Restricted stock units, nonvested (in shares)	10,393		7,103
Total unrecognized pre-tax compensation expense related to unvested restricted stock unit awards	$ 188,000
Stock-based compensation	$ 43,000	$ 70,000
Restricted stock units | Vesting immediately
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units, vested (in shares)		1,235
Restricted stock units | Vesting within two years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units, nonvested (in shares)		2,457
Vesting period		2 years
Percentage of units vesting	50.00%
Restricted stock units | Vesting within five years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units, nonvested (in shares)		5,000
Vesting period	5 years
Percentage of units vesting	50.00%

Stock Compensation Plans - Summ

Stock Compensation Plans - Summary of Restricted Stock Units (Detail) - Restricted stock units - $ / shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested, beginning of year (in shares)	7,103
Granted (in shares)	8,692	8,692
Vested (in shares)	(5,402)
Forfeited (in shares)	0
Unvested, end of period (in shares)	10,393
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Unvested, beginning of year (in usd per share)	$ 17.93
Granted (in usd per share)	19.56
Vested (in usd per share)	17.99
Forfeited (in usd per share)	0
Unvested, end of period (in usd per share)	$ 19.26

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss - Schedule of Changes in Component of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019		Mar. 31, 2018
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ 66,674	[1]	$ 58,154
Unrealized holding gains (losses), net of tax	1,528		(862)
Unrealized holding losses transferred from held to maturity to available for sale (net of tax, ($91))	(340)		0
Pension liability adjustment, net of tax $0 and ($27), respectively	0		(99)
Total other comprehensive income (loss)	1,188		(961)
Ending Balance	69,728		59,693
Unrealized holding gains (losses), tax	407		(229)
Unrealized holding losses transferred from held to maturity to available for sale, tax	(91)		0
Pension liability adjustment, tax	0		(27)
Net Unrealized Gains (Losses) on Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(1,808)		(1,057)
Unrealized holding gains (losses), net of tax	1,528		(862)
Unrealized holding losses transferred from held to maturity to available for sale (net of tax, ($91))	(340)
Pension liability adjustment, net of tax $0 and ($27), respectively			0
Total other comprehensive income (loss)	1,188		(862)
Ending Balance	(620)		(1,919)
Adjustments Related to Pension Benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	0		99
Unrealized holding gains (losses), net of tax	0		0
Unrealized holding losses transferred from held to maturity to available for sale (net of tax, ($91))	0
Pension liability adjustment, net of tax $0 and ($27), respectively			(99)
Total other comprehensive income (loss)	0		(99)
Ending Balance	0		0
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(1,808)		(958)
Unrealized holding gains (losses), net of tax	1,528		(862)
Unrealized holding losses transferred from held to maturity to available for sale (net of tax, ($91))	(340)
Pension liability adjustment, net of tax $0 and ($27), respectively			(99)
Total other comprehensive income (loss)	1,188		(961)
Ending Balance	$ (620)		$ (1,919)
[1]	Derived from audited consolidated financial statements.

Revenue Recognition (Details)

Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Line Items]
Noninterest income (in-scope of Topic 606)	$ 1,830	$ 1,841
Noninterest income (out-of-scope of Topic 606)	155	792
Total noninterest income	1,985	2,633
Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Noninterest income (in-scope of Topic 606)	701	762
ATM and check card fees
Disaggregation of Revenue [Line Items]
Noninterest income (in-scope of Topic 606)	517	519
Wealth management fees
Disaggregation of Revenue [Line Items]
Noninterest income (in-scope of Topic 606)	437	407
Fees for other customer services
Disaggregation of Revenue [Line Items]
Noninterest income (in-scope of Topic 606)	$ 175	$ 153

Leases - Narrative (Details)

Leases - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)lease	Jan. 01, 2019USD ($)
Lessee, Lease, Description [Line Items]
Lease liability	$ 359
Operating lease right-of-use asset	$ 360
Number of leases | lease	6
Number of leases with the option to extend | lease	5
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Lease liability		$ 390
Operating lease right-of-use asset		$ 390

Leases - Schedule of Operating

Leases - Schedule of Operating Lease Right-of-use Asset and Operating Liability (Details) $ in Thousands	Mar. 31, 2019USD ($)
Leases [Abstract]
Operating lease right-of-use asset	$ 360
Operating lease liability	$ 359

Leases - Schedule of Lease Cost

Leases - Schedule of Lease Cost and Additional Information Related to Operating Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Leases [Abstract]
Weighted average remaining lease term, in years	3 years 3 months 18 days
Weighted average discount rate	2.79%
Operating lease expense	$ 33
Short-term lease expense	2
Total lease expense	35
Total lease expense		$ 39
Cash paid for amounts included in lease liability	$ 34

Leases - Schedule of Maturity o

Leases - Schedule of Maturity of Undiscounted Cash Flows (Details) $ in Thousands	Mar. 31, 2019USD ($)
Leases [Abstract]
Nine months ending December 31, 2019	$ 102
Twelve months ending December 31, 2020	112
Twelve months ending December 31, 2021	89
Twelve months ending December 31, 2022	65
Twelve months ending December 31, 2023	8
Total undiscounted cash flows	376
Less: discount	(17)
Operating lease liability	$ 359