Auburn National Bancorporation (AUBN) 10-K 12 Mar 19 2018 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2018	Mar. 11, 2019	Jun. 30, 2018
Document and entity information [Abstract]
Entity public float			$ 116,264,607
Current fiscal year end date	--12-31
Entity central index key	0000750574
Entity current reporting status	Yes
Entity filer category	Accelerated Filer
Entity registrant name	Auburn National Bancorporation, Inc
Trading Symbol	AUBN
Entity voluntary filers	No
Entity well known seasoned issuer	No
Entity common stock shares outstanding		3,593,463
Amendment flag	false
Document Type	10-K
Document Year Focus	2018
Document Period Focus	FY
Document Period End Date	Dec. 31, 2018
dei_EntityShellCompany	false
entity small business	true
Entity Emerging Growth	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Assets:
Cash And Due From Banks	$ 13,043	$ 12,942
Federal funds sold	26,918	41,540
Interest bearing bank deposits	25,115	51,046
Cash and cash equivalents	65,076	105,528
Securities available-for-sale	239,801	257,697
Loans held for sale	383	1,922
Loans, net of unearned income	476,908	453,651
Allowance for loan losses	(4,790)	(4,757)
Loans, net	472,118	448,894
Premises and equipment, net	13,596	13,791
Bank-owned life insurance	18,765	18,330
Other assets	8,338	7,219
Total assets	818,077	853,381
Deposits:
Noninterest-bearing	201,648	193,917
Interest-bearing	522,545	563,742
Total deposits	724,193	757,659
Federal funds purchased and securities sold under agreements to repurchase	2,300	2,658
Long-term debt		3,217
Accrued expenses and other liabilities	2,529	2,941
Total liabilities	729,022	766,475
Stockholders' equity:
Preferred stock	0	0
Common stock	39	39
Additional paid-in capital	3,779	3,771
Retained earnings	95,635	90,299
Accumulated other comprehensive (loss) income, net	(3,763)	(566)
Less treasury stock, at cost	(6,635)	(6,637)
Total stockholders' equity	89,055	86,906
Total liabilities and stockholders' equity	$ 818,077	$ 853,381

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - $ / shares	Dec. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Preferred stock par value	$ 0.01	$ 0.01
Authorized shares, preferred	200,000	200,000
Issued shares, preferred	0	0
Common stock par value	$ 0.01	$ 0.01
Authorized shares, common	8,500,000	8,500,000
Issued shares, common	3,957,135	3,957,135
Treasury stock, shares held	313,267	313,467

Consolidated Statements of Earn

Consolidated Statements of Earnings - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Interest income:
Loans, including fees	$ 21,766	$ 20,781
Securities - Taxable	4,051	4,229
Securities - Tax-exempt	2,308	2,340
Federal funds sold and interest bearing bank deposits	1,121	770
Total interest income	29,246	28,120
Interest expense:
Deposits	3,612	3,451
Short-term borrowings	18	18
Long-term debt interest expense	46	125
Total interest expense	3,676	3,594
Net interest income	25,570	24,526
Provision for loan losses	0	(300)
Net interest income after provision for loan losses	25,570	24,826
Noninterest income:
Service charge on deposit accounts	749	746
Mortgage lending	655	777
Bank-owned life insurance income	435	442
Other noninterest income	1,486	1,425
Securities gains, net	0	51
Total noninterest income	3,325	3,441
Noninterest expense:
Salaries and benefits	10,653	10,011
Net occupancy and equipment	1,465	1,471
Professional fees	902	966
FDIC and other regulatory assessments	310	346
Other noninterest expense	4,544	3,990
Total noninterest expense	17,874	16,784
Earnings before income taxes	11,021	11,483
Income tax expense	2,187	3,637
Net earnings	$ 8,834	$ 7,846
Net earnings per share:
Basic and diluted earnings per share	$ 2.42	$ 2.15
Weighted average shares outstanding:
Basic and diluted weighted average shares outstanding	3,643,780	3,643,616

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Statements of Comprehensive Income [Abstract]
Net earnings	$ 8,834	$ 7,846
Other comprehensive (loss) income, net of tax:
Unrealized net holding loss on securities	(3,197)	263
Reclassification adjustment for net gain on securities recognized in net earnings	0	(32)
Other comprehensive (loss) income	(3,197)	231
Comprehensive income	$ 5,637	$ 8,077

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock Member	Additional Paid In Capital Member	Retained Earnings Member	Accumulated Other Comprehensive Income Member	Treasury Stock Member
Balance, shares at Dec. 31, 2016	3,957,135
Balance, Beg at Dec. 31, 2016	$ 82,177	$ 39	$ 3,767	$ 85,716	$ (708)	$ (6,637)
Net earnings	7,846	0	0	7,846	0	0
Other comprehensive (loss)	231	0	0	0	231	0
Reclassification of certain tax effects	0	0	0	89	(89)	0
Cash dividends paid	(3,352)	0	0	(3,352)	0	0
Treasury Stock, acquired	0	0	0	0	0	0
Sale of treasury stock	4	0	4	0	0	0
Balance, End at Dec. 31, 2017	$ 86,906	39	3,771	90,299	(566)	(6,637)
Balance, shares at Dec. 31, 2017	3,957,135
Net earnings	$ 8,834	0	0	8,834	0	0
Other comprehensive (loss)	(3,197)	0	0	0	(3,197)	0
Reclassification of certain tax effects	0	0	0	0	0	0
Cash dividends paid	(3,498)	0	0	(3,498)	0	0
Treasury Stock, acquired	0	0	0	0	0	0
Sale of treasury stock	10	0	8	0	0	2
Balance, End at Dec. 31, 2018	$ 89,055	$ 39	$ 3,779	$ 95,635	$ (3,763)	$ (6,635)
Balance, shares at Dec. 31, 2018	3,957,135

Consolidated Statements of St_2

Consolidated Statements of Stockholders' Equity (Parentheticals) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Statement of Stockholders' Equity (Parentheticals)
Cash dividends paid per share	$ 0.96	$ 0.92
Treasury shares sold	200	145

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net earnings	$ 8,834	$ 7,846
Adjustments to reconcile net earnings to net cash provided by operating activties:
Provision for loan losses	0	(300)
Depreciation and amortization	938	1,016
Premium amortization and discount accretion, net	2,025	2,133
Deferred income tax expense	71	356
Net gain on securities available for sale	0	(51)
Net gain on sale of loans held for sale	(311)	(504)
Net gain on other real estate owned	0	(5)
Loans originated for sale	(27,681)	(29,796)
Proceeds from sale of loans	29,323	29,651
Increase in cash surrender value of bank owned life insurance	(435)	(442)
Net (increase) decrease in other assets	(221)	592
Net decrease in accrued expenses and other liabilities	(402)	(1,095)
Net cash provided by operating activities	12,141	9,401
Cash flows from investing activities:
Proceeds from sales of securities available-for-sale	8,770	10,374
Proceeds from prepayments and maturities of securities available-for-sale	22,673	32,945
Purchase of securities available-for-sale	(19,841)	(59,160)
Increase in loans, net	(24,749)	(22,291)
Net purchases of premises and equipment	(240)	(1,618)
Increase in FHLB stock	(20)	(13)
Proceeds from sale of other real estate owned	1,353	157
Net cash used in investing activities	(12,054)	(39,606)
Cash flows from financing activities:
Net increase in noninterest-bearing deposits	7,731	12,027
Net (decrease) increase in interest-bearing deposits	(41,197)	6,489
Net decrease in federal funds purchased and securities sold under agreements to repurchase	(358)	(708)
Repayments or retirement of long-term debt	(3,217)	0
Dividends paid	(3,498)	(3,352)
Net cash provided by financing activities	(40,539)	14,456
Net change in cash and cash equivalents	(40,452)	(15,749)
Cash and cash equivalents at beginning of period	105,528	121,277
Cash and cash equivalents at end of period	65,076	105,528
Cash paid during the period for:
Interest	3,616	3,624
Income taxes	2,688	3,289
Supplemental disclosure of non-cash transactions:
Real estate acquired through foreclosure	$ 1,525	$ 0

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2018
Summary of Signficant Accounting Policies
Summary of Significant Accounting Policies Text Block	AUBURN NATIONAL BANCORPORATION, INC. AND SUBSIDIARIES Notes to Consolidated Financial Statements NOTE 1 : SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Nature of Business Auburn National Bancorporation, Inc. (the “Company”) is a bank holding company whose primary business is conducted by its wholly-owned subsidiary, AuburnBank (the “Bank”). AuburnBank is a commercial bank located in Auburn, Alabama. The Bank provides a full range of banking services in its primary market area, Lee County, which includ es the Auburn-Opelika Metropolitan Statistical Area. Basis of Presentation The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiar ies. Auburn National Bancorporation Capital Trust I was an affiliate of th e Company and was included in these consolidated financial statements pursuant to the equity method of accounting. On April 27, 2018, the Trust was dissolved. Significant intercompany transactions and accounts are eliminated in consolidation. Use of Es timates The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of conting ent assets and liabilities as of the balance sheet date and the reported amounts of income and expense during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term include the determination of the allowance for loan losses , fair value measurements , valuation of other real estate owned, and valuation of deferred tax assets. Acco unting Standards Adopted in 2018 In 2018 , the Company adopted new guidance related to the following Accounting Standards Update (“Update” or “ASU ”): ASU 2014-09, Revenue from Contracts with Customers; ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities ; ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments ; and ASU 2016-18, Restricted Cash . Information about these pronouncements is described in more detail below. ASU 2014-09 , Revenue from Contracts with Customers (Topic 606), was developed as a joint project with the International Accounting Standards Board to remove inconsistencies in revenue requirements and provide a more robust framework for addressing revenue issues. The ASU’s core principle is that an entity should recog nize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB issued ASU 2015-14, which deferr ed the effective date by one year (i.e., interim and annual reporting periods beginning after December 15, 2017). Early adoption was permitted, but not before the original effective date (i.e., interim and annual reporting periods beginning after December 15, 2016). The ASU may be adopted using either a modified retrospective method or a full retrospective method. The Company adopted the ASU during the first quarter of 2018, as required, using a modified retrospective approach. The majority of the Company’s revenue stream is generated from interest income on loans and deposits, which are outside the scope of Topic 606. The Company’s sources of income that fall within the scope of Topic 606 include service charges on deposits, investment services, interchange fees and gains and losses on sales of other real estate, all of which are presented as components of noninterest income. The Company has evaluated the effect of Topic 606 on these fee-based income streams and concluded that adoption of the standard did no t materially impact its financial statements. The following is a summary of the implementation considerations for the revenue streams that fall within the scope of Topic 606: Service charges on deposits, investment services, ATM and interchange fees – Fe es from these services are either transaction-based, for which the performance obligations are satisfied when the individual transaction is processed, or set periodic service charges, for which the performance obligations are satisfied over the period the service is provided. Transaction-based fees are recognized at the time the transaction is processed, and periodic service charges are recognized over the service period. The adoption of Topic 606 had no impact on the Company’s revenue recognition practice for these services. Gains on sales of other real estate – ASU 2014-09 creates Topic 610-20, under which a gain on sale should be recognized when a contract for sale exists and control of the asset has been transferred to the buyer. Topic 606 lists several criteria required to conclude that a contract for sale exists, including a determination that the institution will collect substantially all of the consideration to which it is entitled. This presents a key difference between the prior and new guidance re lated to the recognition of the gain when the institution finances the sale of the property. Rather than basing recognition on the amount of the buyer’s initial investment, which was the primary consideration under prior guidance, the analysis is now based on various factors including not only the loan to value, but also the credit quality of the borrower, the structure of the loan, and any other factors that may affect collectability. While these differences may affect the decision to recognize or defer ga ins on sales of other real estate in circumstances where the Company has financed the sale, the effects would not be material to its consolidated financial statements. ASU 2016-01, Financial Instruments – Overall (Subtopic 825-10): Recognition and Measur ement of Financial Assets and Financial Liabilities , enhances the reporting model for financial instruments to provide users of financial statements with more decision-useful information. The ASU addresses certain aspects of recognition, measurement, prese ntation, and disclosure of financial instruments. Some of the amendments include the following: (1) Require equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be me asured at fair value with changes in fair value recognized in net income; (2) Simplify the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment; (3) Require public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; (4) Require an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value; among others. For public business entities, the amendments of this ASU are effective for fiscal years beginning af ter December 15, 2017, including interim periods within those fiscal years. The adoption of this ASU on January 1, 2018 did not have a material impact on the Company’s Consolidated Financial Statements. In accordance with (3) above, the Company measured th e fair value of its loan portfolio as of December 31, 2018 using an exit price notion and will continue to do so going forward. See Note 16 , Fair Value. ASU 2016-15 , Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Pa yments, provides guidance on eight specific cash flow issues where current GAAP is either unclear or does not include specific guidance on classification in the statement of cash flows. The new guidance is effective for annual and interim reporting periods in fiscal years beginning after December 15, 2017. The Company adopted ASU No. 2016-15 on January 1, 2018. ASU No. 2016-15 did not have a material impact on the Company’s Consolidated Financial Statements. ASU 2016-18, Statement of Cash Flows (Topic 230) : Restricted Cash , amends guidance on how the statement of cash flows presents the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Under the new guidance, a mounts generally described as restricted cash and restricted cash equivalents are included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. The amendments in this Update do not provide a definition of restricted cash or restricted cash equivalents. The new guidance is effective for public business entities for annual and interim reporting periods in fiscal years beginning after December 15, 2017. The Company adopted ASU No. 2016-18 on January 1, 2018. ASU No. 2016-18 did not have a material impact on the Company’s Consolidated Financial Statements. Cash Equivalents Cash equivalents include c ash on hand, cash items in process of collection, amounts due from banks, including interest bearing deposits with other banks, and federal funds sold. Securities Securities are classified based on management’s intention at the date of purchase. At December 31, 2018 , all of the Company’s securities were classified as ava ilable-for-sale. Securities available-for-sale are used as part of the Company’s interest rate risk management strategy, and they may be sold in response to changes in interest rates, changes in prepayment risks or other factors. All securities classified as available-for-sale are recorded at fair value with any unrealized gains and losses reported in accu mulated other comprehensive income (loss) , net of the deferred income tax effects. Interest and dividends on securities, including the amortization of pre miums and accretion of discounts are recognized in interest income over the anticipated life of the security using the effective interest method, taking into consideration prepayment assumptions. Realized gains and losses from the sale of securities are de termined using the specific identification method. On a quarterly basis, management makes an assessment to determin e whether there have been events or economic circumstances to indicate that a security on which there is an unrealized loss is other-than-temporarily impaired. For equity securities with an unrealized loss, the Company considers many factors including the severity and duration of the impairment; the intent and ability of the Company to hold the security for a period of time sufficient for a recovery in value; and recent events specific to the issuer or industry. Equity securities on which there is an unreal ized loss that is deemed to be other-than-temporary are written down to fair value with the write-down recorded as a realized loss in securities gains (losses) , net . For debt securities with an unrealized loss, an other-than-temporary impairment write-d own is triggered when (1) the Company has the intent to sell a debt security, (2) it is more likely than not that the Company will be required to sell the debt security before recovery of its amortized cost basis, or (3) the Company does not expect to reco ver the entire amortized cost basis of the debt security. If the Company has the intent to sell a debt security or if it is more likely than not that it will be required to sell the debt security before recovery, the other-than-temporary write-down is equ al to the entire difference between the debt security’s amortized cost and its fair value. If the Company does not intend to sell the security or it is not more likely than not that it will be required to sell the security before recovery, the other-than- temporary impairment write-down is separated into the amount that is credit related (credit loss component) and the amount due to all other factors. The credit loss component is recognized in earnings, as a realized loss in securities gains (losses), and is the difference between the security’s amortized cost basis and the present value of its expected future cash flows. The remaining difference between the security’s fair value and the present value of future expected cash flows is due to factors that ar e not credit related and is recognized in other comprehensive income, net of applicable taxes. Loans held for sale Loans originated and intended for sale in the secondary market are carried at the lower of cost or estimated fair value in the aggregate . Loan sales are recognized when the transaction closes, the proceeds are collected, and ownership is transferred. Continuing involvement, through the sales agreement, consists of the right to service the loan for a fee for the life of the loan, if applica ble. Gains on the sale of loans held for sale are recorded net of related costs, such as commissions, and reflected as a component of mortgage lending income in the consolidated statements of earnings. In the course of conducting the Bank’s mortgage lending activities of originating mortgage loans and selling those loans in the secondary market, the Bank makes various representations and warranties to the purchaser of the mortgage loans. Every loan closed by the Bank’s mortgage center is run through a government agency automated underwriting system. Any exceptions noted during this process are remedied prior to sale. These representations and warranties also apply to underwriting the real estate appraisal opinion of value for the collateral securing these loans. Failure by the Company to comply with the underwriting and/or appraisal standards could result in the Company being required to repurchase the mortgage loan or to reimburse the investor for losses incurred (make whole requests) if such failu re cannot be cured by the Company within the specified period following discovery. Loans Loans are reported at their outstanding principal balances, net of any unearned income , charge-offs, and any deferred fees or costs on originated loans. Interest income is accrued based on the principal balance outstanding. Loan origination fees, net of certain loan origination costs, are deferred and recognized in interest income over the contractual life of the loan using the effective interest method. Loan com mitment fees are generally deferred and amortized on a straight-line basis over the commitment period , which results in a recorded amount that approximates fair value . The accrual of interest on loans is discontinued when there is a significant deteriora tion in the financial condition of the borrower and full repayment of principal and interest is not expected or the principal or interest is more than 90 days past due, unless the loan is both well-collateralized and in the process of collection. Generally , all interest accrued but not collected for loans that are placed on nonaccrual status is reversed against current interest income. Interest collections on non accrual loans are generally applied as principal reductions. The Company determines past due or delinquency status of a loan based on contractual payment terms. A loan is considered impaired when it is probable the Company will be unable to collect all principal and interest payments due according to the contractual terms of the loan agreement. Ind ividually identified impaired loans are measured based on the present value of expected payments using the loan’s original effective rate as the discount rate, the loan’s observable market price, or the fair value of the collateral if the loan is collatera l dependent. If the recorded investment in the impaired loan exceeds the measure of fair value, a valuation allowance may be established as part of the allowance for loan losses. Changes to the valuation allowance are recorded as a component of the provisi on for loan losses. Impaired loans also include troubled debt restructurings (“TDRs”). In the normal course of business, management may grant concessions to borrowers who are experiencing financial difficulty. The concessions granted most frequently for TDRs involve reductions or delays in required payments of principal and interest for a specified time, the rescheduling of payments in accordance with a bankruptcy plan or the charge-off of a portion of the loan. In most cases, the conditions of the credit also warrant nonaccrual st atus, even after the restructuring occurs. As part of the credit approval process, the restructured loans are evaluated for adequate collateral protection in determining the appropriate accrual s tatus at the time of restructuring . TDR loans may be returned to accrual status if there has been at least a six-month sustained period of repayment performance by the borrower. Allowance for Loan Losses The allowance for loan losses is maintained at a level that management believes is adequate to absorb probable losses inherent in the loan portfolio. Loan losses are charged against the allowance when they are known. Subsequent recoveries are credited to the allowance. Management’s determination of the adequacy of the allowance is based on an evaluation of the portfolio, current economic conditions, growth, composition of the loan portfolio, homogeneous pools of loans, risk ratings of specific loans, historica l loan loss factors, identified impaired loans and other factors related to the portfolio. This evaluation is performed quarterly and is inherently subjective, as it requires various material estimates that are susceptible to significant change, including the amounts and timing of future cash flows expected to be received on any impaired loans. In addition, regulatory agencies, as an integral part of their examination process, will periodically review the Company’s allowance for loan losses, and may require the Company to record additions to the allowance based on their judgment about information available to them at the time of their examinations. Premises and Equipment Land is carried at cost. Buildings and equipment are carried at cost, less accumulat ed depreciation computed on a straight-line method over the useful lives of the assets or the expected terms of the leases, if shorter. Expected terms include lease option periods to the extent that the exercise of such options is reasonably assured. Oth er Real Estate Owned Other real estate owned (“OREO”) includes properties acquired through, or in lieu of, loan foreclosure that are held for sale and are initially recorded at the lower of the loan’s carrying amount or fair value less cost to sell at the date of foreclosure, establishing a new cost basis. Subsequent to foreclosure, valuations are periodically performed by management and the assets are carried at the lower of carrying value amount or fair value less cost to sell. Gains or losses realized upon sale of OREO and additional losses related to subsequent valuation adjustments are determined on a specific property basis and are included as a component of noninterest expense along with holding costs. Nonmarketable equity investments Nonmarke table equity investments include equity securities that are not publicly traded and securities acquired for various purposes . The Bank is required to maintain certain minimum levels of equity investments with certain regulatory and other entities in which the Bank has an ongoing business relationship based on the Bank’s common stock and surplus (with regard to the relationship with the Federal Reserve Bank) or outstanding borrowings (with regard to the relationship with the Federal Home Loan Bank of Atlanta ). These nonmarketable equity securities are accounted for at cost which equals par or redemption value. These securities do not have a readily determinable fair value as their ownership is restricted and there is no market for these securities. These secu rities can only be redeemed or sold at their par value and only to the respective issuing government supported institution or to another member institution. The Company records these nonmarketable equity securities as a component of other assets, which are periodically evaluated for impairment. Management considers these nonmarketable equity securities to be long-term investments. Accordingly, when evaluating these securities for impairment, management considers the ultimate recoverability of the par value rather than by recognizing temporary declines in value. Transfers of Financial Assets Transfers of an entire financial asset (i.e. loan sales), a group of entire financial assets, or a participating interest in an entire financial asset (i.e. loan parti cipations sold) are accounted for as sales when control over the assets have been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets have been isolated from the Company, (2) the transferee obtains the right (free o f conditions that constrain it from taking that right) to pledge or exchange the transferred assets, and (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity. Mortga ge Servicing Rights The Company recognizes as assets the rights to service mortgage loans for others, known as MSRs. The Company determines the fair value of MSRs at the date the loan is transferred. An estimate of the Company’s MSRs is determined using assumptions that market participants would use in estimating future net servicing income, including estimates of pre p ayment speeds, discount rate, default rates, cost to service, escrow account earnings, contractual servicing fee income, ancillary income, and late fees. Subsequent to the date of transfer, the Company has elected to measure its MSRs under the amortization method. Under the amortization method, MSRs are amortized in proportion to, and over the period of, estimated net servicing income. T he amortization of MSRs is analyzed monthly and is adjusted to reflect changes in prepayment speeds, as well as other factors. MSRs are evaluated for impairment based on the fair value of those assets. Impairment is determined by stratifying MSRs into gr oupings based on predominant risk characteristics, such as interest rate and loan type. If, by individual stratum, the carrying amount of the MSRs exceeds fair value, a valuation allowance is established through a charge to earnings. The valuation allowa nce is adjusted as the fair value changes. MSRs are included in the other assets category in the accompanying consolidated balance sheet s . Derivative Instruments In accordance with Accounting Standards Codification (“ASC”) Topic 815, Derivatives and Hedging , all derivative instruments are recorded on the consolidated balance sheet at their res pective fair values. The accounting for changes in fair value (i.e., gains or losses) of a derivative instrument depends on whether it has been designated and q ualifies as part of a hedging relationship and, if so, on the reason for holding it. If the derivative instrument is not designated as part of a hedg ing relationship , the gain or loss on the derivative instrument is recognized in earnings in the period of change. None of the derivatives utilized by the Company have been designated as a hedge. Securities sold under agreements to repurchase Securities sold under agreements to repurchase generally mature less than one year from the transaction date. Securi ties sold under agreements to repurchase are reflected as a secured borrowing in the accompanying consolidated balance sheets at the amount of cash received in connection with each transaction. Income Taxes Deferred tax assets and liabilities are the e xpected future tax amounts for the temporary differences between carrying amounts and tax bases of assets and liabilities, computed using enacted tax rates. A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized . The net deferred tax asset is reflected as a component of other assets in the accompanying consolidated balance sheets. Income tax expense or benefit for the year is allocated among continuing operations and other comprehensive income (loss), as applicable. The amount allocated to continuing operations is the income tax effect of the pretax income or loss from continuing op erations that occurred during the year, plus or minus income tax effects of ( 1 ) changes in certain circumstances that cause a change in judgment about the realization of deferred tax assets in future years, ( 2 ) changes in income tax laws or rates, and ( 3 ) changes in income tax status, subject to certain exceptions. The amount allocated to other comprehensive income (loss) is related solely to changes in the valuation allowance on items that are normally accounted for in other comprehensive income (loss) su ch as unrealized gains or losses on available-for-sale securities. In accordance with ASC 740, Income Taxes , a tax position is recognized as a benefit only if it is “more likely than not” that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50% likely of being realized on examination. For tax positions not meeting the “more likely than not” test, no tax benefit is record ed. It is the Company’s policy to recognize interest and penalties related to income tax matters in income tax expense. The Company and its wholly-owned subsidiaries file a consolidated income tax return. Fair Value Measurements ASC 820 , Fair Value Mea surements, which defines fair value, establishes a framework for measuring fair value in U.S. generally accepted accounting principles and expands disclosures about fair value measurements. ASC 820 applies only to fair-value measurements that are already r equired or permitted by other accounting standards. The definition of fair value focuses on the exit price, i.e., the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at t he measurement date, not the entry price, i.e., the price that would be paid to acquire the asset or received to assume the liability at the measurement date. The statement emphasizes that fair value is a market-based measurement; not an entity-specific me asurement. Therefore, the fair value measurement should be determined based on the assumptions that market participants would use in pricing the asset or liability. For more information related to fair value measurements, please refer to Note 16 , Fair Value. Subsequent Events The Company has evaluated the effects of events or transactions through the date of this filing that have occurred subsequent to December 31, 2018 . The Company does not believe there are any material subsequent events that would require further recognition or disclosure .

Basic and Diluted Earnings Per

Basic and Diluted Earnings Per Share	12 Months Ended
	Dec. 31, 2018
Basic and Diluted Earnings Per Share [Abstract]
Basic and Diluted Earnings Per Share Text Block	NOTE 2 : BASIC AND DILUTED NET EARNINGS PER SHARE Basic net earnings per share is computed by dividing net earnings by the weighted average common shares outstanding for the year. Diluted net earnings per share reflect the potential dilution that could occur upon exercise of securities or other rights for, or convertible into, shares of the Company’s common stock. As of December 31, 2018 and 2017 , respectively, the Company had no such securities or other rights issued or outstanding, and the refore, no dilutive effect to consider for the diluted net earnings per share calculation. The basic and diluted net earnings per share computations for the respective years are presented below. Year ended December 31 (Dollars in thousands, except share and per share data) 2018 2017 Basic and diluted: Net earnings $ 8,834 $ 7,846 Weighted average common shares outstanding 3,643,780 3,643,616 Net earnings per share $ 2.42 $ 2.15

Restricted Cash Balances

Restricted Cash Balances	12 Months Ended
	Dec. 31, 2018
Restricted Cash Balances
Restricted Cash Balances Text Block	NOTE 3 : RESTRICTED CASH BALANCES Regulation D of the Federal Reserve Act requires that banks maintain reserve balances with the Federal Reserve Bank based principally on the type and amount of their deposits. As of December 31, 2018 and 2017 , the Bank did not have a required reserve balance at the Federal Reserve Bank.

Securities

Securities	12 Months Ended
	Dec. 31, 2018
Investments debt and equity securities [Abstract]
Investments In Debt And Marketable Equity Securities And Certain Trading Assets Disclosure Text Block	NOTE 4 : SECURITIES At December 31, 2018 and 2017 , respectively, all securities within the scope of ASC 320, Investments – Debt and Equity Securities were classified as available-for-sale. The fair value and amortized cost for securities available-for-sale by contractual maturity at December 31, 2018 and 2017 , respectively, are presented below. 1 year 1 to 5 5 to 10 After 10 Fair Gross Unrealized Amortized (Dollars in thousands) or less years years years Value Gains Losses Cost December 31, 2018 Agency obligations (a) $ 14,437 19,865 16,869 — 51,171 25 1,200 $ 52,346 Agency RMBS (a) — — 8,368 110,230 118,598 65 3,738 122,271 State and political subdivisions — 3,682 7,726 58,624 70,032 518 692 70,206 Total available-for-sale $ 14,437 23,547 32,963 168,854 239,801 608 5,630 $ 244,823 December 31, 2017 Agency obligations (a) $ — 29,253 23,809 — 53,062 79 904 $ 53,887 Agency RMBS (a) — — 11,201 121,871 133,072 330 1,639 $ 134,381 State and political subdivisions — 2,564 9,999 59,000 71,563 1,616 237 $ 70,184 Total available-for-sale $ — 31,817 45,009 180,871 257,697 2,025 2,780 $ 258,452 (a) Includes securities issued by U.S. government agencies or government sponsored entities. Securities with aggregate fair values of $133.1 million and $149.4 million at December 31, 2018 and 2017 , respectively, were pledged to secure public deposits, securities sold under agreements to repurchase, Federal Home Loan Bank (“FHLB”) advances, and for other purposes required or permitted by law. Included in other assets on the accompanying consolida ted balance sheets are nonmarketable equity investments. The carrying amounts of nonmarketable equity investments were $1.4 million at December 31, 2018 and 2017 , respectively. Nonmarketable equity investments include FHLB of Atlanta stock, Federal Reserve Bank (“FRB”) stock, and stock in a privately held financial institution . Gross Unrealized Losses and Fair Value The fair values and gross unrealized losses on securities at December 31, 2018 and 2017 , respectively, segregated by those securities that have been in an unrealized lo ss position for less than 12 months and 12 months or more are presented below. Less than 12 Months 12 Months or Longer Total Fair Unrealized Fair Unrealized Fair Unrealized (Dollars in thousands) Value Losses Value Losses Value Losses December 31, 2018: Agency obligations $ 4,724 28 44,307 1,172 49,031 $ 1,200 Agency RMBS 12,325 238 99,184 3,500 111,509 3,738 State and political subdivisions 14,840 181 14,384 511 29,224 692 Total $ 31,889 447 157,875 5,183 189,764 $ 5,630 December 31, 2017: Agency obligations $ 14,381 99 20,353 805 34,734 $ 904 Agency RMBS 53,440 363 50,729 1,276 104,169 1,639 State and political subdivisions 2,009 22 10,155 215 12,164 237 Total $ 69,830 484 81,237 2,296 151,067 $ 2,780 For the securities in the previous table, the Company does not have the intent to sell and has determined it is not more likely than not that the Company will be required to sell the security before recovery of the amortized cost basis, which may be maturity. On a quarterly basis, the Company assesses each security for credit impairment. For debt securities, the Company evaluates, where necessary, whether credit impairment exists by comparing the present value of the expected cash flows to the securit ies’ amortized cost basis. In determining whether a loss is temporary, the Company considers all relevant information including: the length of time and the extent to which the fair value has been less than the amortized cost basis; adverse conditions specifically related to the security, an industry, or a geographic area (for example, changes in the financial condition of the issuer of the security, or in the case of an asset-backed debt security, in the financial condition of the underlying loan oblig ors, including changes in technology or the discontinuance of a segment of the business that may affect the future earnings potential of the issuer or underlying loan obligors of the security or changes in the quality of the credit enhancement); the histor ical and implied volatility of the fair value of the security; the payment structure of the debt security and the likelihood of the issuer being able to make payments that increase in the future; failure of the issuer of the security to make scheduled in terest or principal payments; any changes to the rating of the security by a rating agency; and recoveries or additional declines in fair value subsequent to the balance sheet date. Agency obligations The unrealized losses associated with agency obliga tions were primarily driven by changes in interest rates and not due to the credit quality of the securities. These securities were issued by U.S. government agencies or government-sponsored entities and did not have any credit losses given the explicit go vernment guarantee or other government support. Agency residential mortgage-backed securities (“RMBS”) The unrealized losses associated with agency RMBS were primarily driven by changes in interest rates and not due to the credit quality of the securiti es. These securities were issued by U.S. government agencies or government-sponsored entities and did not have any credit losses given the explicit government guarantee or other government support . Securities of U.S. states and political subdivisions T he unrealized losses associated with securities of U.S. states and political subdivisions were primarily driven by changes in interest rates and were not due to the credit quality of the securities. Some of these securities are guaranteed by a bond insurer , but management did not rely on the guarantee in making its investment decision. These securities will continue to be monitored as part of the Company’s quarterly impairment analysis, but are expected to perform even if the rating agencies reduce the cred it rating of the bond insurers. As a result, the Company expects to recover the entire amortized cost basis of these securities. The carrying values of the Company’s investment securities could decline in the future if the financial condition of an issue r deteriorates and the Company determines it is probable that it will not recover the entire amortized cost basis for the security. As a result, there is a risk that o ther-than-temporary impairment charges may occur in the future. Other-Than-Temporarily Impaired Securities Credit-impaired debt securities are debt securities where the Company has written down the amortized cost basis of a security for other-than-temporary impairment and the credit component of the loss is recognized in earnings. At December 31, 2018 and 2017 , respectively, the Company had no credit-impaired debt securities and there were no additions or reductions in the credit loss component of credit-impaired debt securities during the years ended D ecember 31, 2018 and 2017 , respectively. Realized Gains and Losses The following table presents the gross realized gains and losses on sales related to securities. Year ended December 31 (Dollars in thousands) 2018 2017 Gross realized gains $ — 51 Realized gains, net $ — 51

Loan and Allowance for Loan Los

Loan and Allowance for Loan Losses	12 Months Ended
	Dec. 31, 2018
Loans And Leases Receivable Disclosure [Abstract]
Loans and leases receivable disclosure [Text Block]	NOTE 5 : LOANS AND ALLOWANCE FOR LOAN LOSSES December 31 (In thousands) 2018 2017 Commercial and industrial $ 63,467 $ 59,086 Construction and land development 40,222 39,607 Commercial real estate: Owner occupied 56,413 44,192 Multifamily 40,455 52,167 Other 165,028 142,674 Total commercial real estate 261,896 239,033 Residential real estate: Consumer mortgage 56,223 59,540 Investment property 46,374 47,323 Total residential real estate 102,597 106,863 Consumer installment 9,295 9,588 Total loans 477,477 454,177 Less: unearned income (569) (526) Loans, net of unearned income $ 476,908 $ 453,651 Loans secured by real estate were approximately 84.9% of the total loan portfolio at December 31, 2018 . At December 31, 2018 , the Company’s geographic loan distribution was concentrated primarily in Lee County, Alabama and surrounding areas. In accordance with ASC 310, Receivables , a portfolio segment is defined as the level at which an entity develops and documents a systematic method for determining its allowance for loan losses. As part of the Company’s quarterly assessment of the allowance , the loan portfolio is disaggregated into the following portfolio segments: commercial and industrial, construction and land development, commercial real estate, residential real estate and consumer installment. Where appropriate, the Company’s loan port folio segments are further disaggregated into classes. A class is generally determined based on the initial measurement attribute, risk characteristics of the loan, and an entity’s method for monitoring and determining credit risk. The following describe the risk characteristics relevant to each of the portfolio segments. Commercial and industrial (“C&I”) — includes loans to finance business operations, equipment purchases, or other needs for small and medium-sized commercial customers. Also included in t his category are loans to finance agricultural production. Generally the primary source of repayment is the cash flow from business operations and activities of the borrower. Construction and land development (“C&D”) — includes both loans and credit line s for the purpose of purchasing, carrying and developing land into commercial developments or residential subdivisions. Also included are loans and lines for construction of residential, multi-family and commercial buildings. Generally the primary source o f repayment is dependent upon the sale or refinance of the real estate collateral. Commercial real estate (“CRE”) — includes loans disaggregated into three classes: (1) owner occupied (2) multi-family and (3) other. Owner occupied – includes loans secur ed by business facilities to finance business operations, equipment and owner-occupied facilities primarily for small and medium-sized commercial customers. Generally the primary source of repayment is the cash flow from business operations and activities of the borrower, who owns the property. Multi family – primarily includes loans to finance income-producing multi-family properties. Loans in this class include loans for 5 or more unit residential property and apartments leased to residents. Generally, the primary source of repayment is dependent upon income generated from the real estate collateral. The underwriting of these loans takes into consideration the occupancy and rental rates, as well as the financial health of the borrower. Other – primarily includes loans to finance income-producing commercial properties. Loans in this class include loans for neighborhood retail centers, hotels, medical and professional offices, single retail stores, industrial buildings, and warehouses leased generally to local businesses and residents. Generally the primary source of repayment is dependent upon income generated from the real estate collateral. The underwriting of these loans takes into consideration the occupancy and rental rates as well as the financial h ealth of the borrower. Residential real estate (“RRE”) — includes loans disaggregated into two classes: (1) consumer mortgage and (2) investment property. Consumer mortgage – primarily include s first or second lien mortgages and home equity lines to con sumers that are secured by a primary residence or second home. These loans are underwritten in accordance with the Bank’s general loan policies and procedures which require, among other things, proper documentation of each borrower’s financial condition, s atisfactory cre dit history and property value. Investment property – primarily includes loans to finance income-producing 1-4 family residential properties. Generally the primary source of repayment is dependent upon income generated from leasing the prop erty securing the loan. The underwriting of these loans takes into consideration the rental rates as well as the fi nancial health of the borrower. Consumer installment — includes loans to individuals both secured by personal property and unsecured. Loans include personal lines of credit, automobile loans, and other retail loans. These loans are underwritten in accordance with the Bank’s general loan policies and procedures which require, among other things, proper documentation of each borrower’s financi al condition, satisfactory credit history, and if applicable, property value. The following is a summary of current, accruing past due and nonaccrual loans by portfolio class as of December 31, 2018 and 2017 . Accruing Accruing Total 30-89 Days Greater than Accruing Non- Total (In thousands) Current Past Due 90 days Loans Accrual Loans December 31, 2018: Commercial and industrial $ 63,367 100 — 63,467 — $ 63,467 Construction and land development 39,997 225 — 40,222 — 40,222 Commercial real estate: Owner occupied 56,413 — — 56,413 — 56,413 Multifamily 40,455 — — 40,455 — 40,455 Other 165,028 — — 165,028 — 165,028 Total commercial real estate 261,896 — — 261,896 — 261,896 Residential real estate: Consumer mortgage 54,446 1,599 — 56,045 178 56,223 Investment property 46,233 141 — 46,374 — 46,374 Total residential real estate 100,679 1,740 — 102,419 178 102,597 Consumer installment 9,254 41 — 9,295 — 9,295 Total $ 475,193 2,106 — 477,299 178 $ 477,477 December 31, 2017: Commercial and industrial $ 59,047 8 — 59,055 31 $ 59,086 Construction and land development 39,607 — — 39,607 — 39,607 Commercial real estate: Owner occupied 44,192 — — 44,192 — 44,192 Multifamily 52,167 — — 52,167 — 52,167 Other 140,486 — — 140,486 2,188 142,674 Total commercial real estate 236,845 — — 236,845 2,188 239,033 Residential real estate: Consumer mortgage 58,195 746 — 58,941 599 59,540 Investment property 46,871 312 — 47,183 140 47,323 Total residential real estate 105,066 1,058 — 106,124 739 106,863 Consumer installment 9,517 57 — 9,574 14 9,588 Total $ 450,082 1,123 — 451,205 2,972 $ 454,177 The gross interest income which would have been recorded under the original terms of those nonaccrual loans had they been accruing interest, amounted to approximately $12 thousand and $140 thousand for the years ended December 31, 2018 and 2017 , respectively. Allowance for Loan Losses The allowance for loan losses as of and for the years ended December 31, 2018 and 2017 , is presented below. Year ended December 31 (In thousands) 2018 2017 Beginning balance $ 4,757 $ 4,643 Charged-off loans (168) (596) Recovery of previously charged-off loans 201 1,010 Net recoveries 33 414 Provision for loan losses — (300) Ending balance $ 4,790 $ 4,757 The Company assesses the adequacy of its allowance for loan losses prior to the end of each calendar quarter. The level of the allowance is based upon management’s evaluation of the loan portfolio, past loan loss experience, current asset quality trends, known and inherent risks in the portfolio, adverse situations that may affect a borrower’s ability to repay (including the timing of future payment), the estimated value of any underlying collateral, composition of the loan portfolio, economic conditions, industry and peer bank loan loss rates and other pertinent factors, including regulatory recommendations. This evaluation is inherently subjective as it requires material estimates including the amounts and timing of future cash flows expected to be receiv ed on impaired loans that may be susceptible to significant change. Loans are charged off, in whole or in part, when management believes that the full collectability of the loan is unlikely. A loan may be partially charged-off after a “confirming event” ha s occurred which serves to validate that full repayment pursuant to the terms of the loan is unlikely. The Company deems loans impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts du e according to the contractual terms of the loan agreement. Collection of all amounts due according to the contractual terms means that both the interest and principal payments of a loan will be collected as scheduled in the loan agreement. An impairment allowance is recognized if the fair value of the loan is less than the recorded investment in the loan. The impairment is recognized through the allowance. Loans that are impaired are recorded at the present value of expected future cash flows discounted at the loan’s effective interest rate, or if the loan is collateral dependent, impairment measurement is based on the fair value of the collateral, less estimated disposal costs. The level of allowance maintained is believed by management to be adequate to absorb probable losses inherent in the portfolio at the balance sheet date. The allowance is increased by provisions charged to expense and decreased by charge-offs, net of recoveries of amounts previously charged-off. In assessing the adequacy of the allowance, the Company also considers the results of its ongoing internal, independent loan review process. The Company’s loan review process assists in determining whether there are loans in the portfolio whose credit quality has weakened over time and e valuating the risk characteristics of the entire loan portfolio. The Company’s loan review process includes the judgment of management, the input from our independent loan reviewers, and reviews that may have been conducted by bank regulatory agencies as p art of their examination process. The Company incorporates loan review results in the determination of whether or not it is probable that it will be able to collect all amounts due according to the contractual terms of a loan. As part of the Company’s qu arterly assessment of the allowance, management divides the loan portfolio into five segments: commercial and industrial, construction and land development, commercial real estate, residential real estate, and consumer installment loans. The Company analyz es each segment and estimates an allowance allocation for each loan segment. The allocation of the allowance for loan losses begins with a process of estimating the probable losses inherent for these types of loans. The estimates for these loans are esta blished by category and based on the Company’s internal system of credit risk ratings and historical loss data. The estimated loan loss allocation rate for the Company’s internal system of credit risk grades is based on its experience with similarly graded loans. For loan segments where the Company believes it does not have sufficient historical loss data, the Company may make adjustments based, in part, on loss rates of peer bank groups. At December 31, 2018 and 2017 , and for the years then ended, th e Company adjusted its historical loss rates for the commercial real estate portfolio segment based, in part, on loss rates of peer bank groups. The estimated loan loss allocation for all five loan portfolio segments is then adjusted for management’s esti mate of probable losses for several “qualitative and environmental” factors. The allocation for qualitative and environmental factors is particularly subjective and does not lend itself to exact mathematical calculation. This amount represents estimated pr obable inherent credit losses which exist, but have not yet been identified, as of the balance sheet date, and are based upon quarterly trend assessments in delinquent and nonaccrual loans, credit concentration changes, prevailing economic conditions, chan ges in lending personnel experience, changes in lending policies or procedures and other influencing factors. These qualitative and environmental factors are considered for each of the five loan segments and the allowance allocation, as determined by the p rocesses noted above, is increased or decreased based on the incremental assessment of these factors. The Company regularly re-evaluates its practices in determining the allowance for loan losses. Since the fourth quarter of 2016, the Company has increase d its look-back period each quarter to incorporate the effects of at least one economic downturn in its loss history. The Company believes the extension of its look-back period is appropriate due to the risks inherent in the loan portfolio. Absent this ext ension, the early cycle periods in which the Company experienced significant losses would be excluded from the determination of the allowance for loan losses and its balance would decrease. For the year ended December 31, 2018, the Company increased its lo ok-back period to 39 quarters to continue to include losses incurred by the Company beginning with the first quarter of 2009. The Company will likely continue to increase its look-back period to incorporate the effects of at least one economic downturn in its loss history. Other than expanding the look-back period each quarter, the Company has not made any material changes to its methodology that would impact the calculation of the allowance for loan losses or provision for loan losses for the periods inclu ded in the accompanying consolidated balance sheets and statements of earnings. The following table details the changes in the allowance for loan losses by portfolio segment for the years ended December 31, 2018 and 2017 . (in thousands) Commercial and industrial Construction and land Development Commercial Real Estate Residential Real Estate Consumer Installment Total Balance, December 31, 2016 $ 540 812 2,071 1,107 113 $ 4,643 Charge-offs (449) — — (107) (40) (596) Recoveries 461 347 — 115 87 1,010 Net recoveries 12 347 — 8 47 414 Provision 101 (425) 55 (44) 13 (300) Balance, December 31, 2017 $ 653 734 2,126 1,071 173 $ 4,757 Charge-offs (52) — (38) (26) (52) (168) Recoveries 70 — 19 79 33 201 Net recoveries 18 — (19) 53 (19) 33 Provision 107 (34) 111 (178) (6) — Balance, December 31, 2018 $ 778 700 2,218 946 148 $ 4,790 The following table presents an analysis of the allowance for loan losses and recorded investment in loans by portfolio segment and impairment methodology as of December 31, 2018 and 2017 . Collectively evaluated (1) Individually evaluated (2) Total Allowance Recorded Allowance Recorded Allowance Recorded for loan investment for loan investment for loan investment (In thousands) losses in loans losses in loans losses in loans December 31, 2018: Commercial and industrial $ 778 63,467 — — 778 63,467 Construction and land development 700 40,222 — — 700 40,222 Commercial real estate 2,218 261,739 — 157 2,218 261,896 Residential real estate 946 102,597 — — 946 102,597 Consumer installment 148 9,295 — — 148 9,295 Total $ 4,790 477,320 — 157 4,790 477,477 December 31, 2017: Commercial and industrial $ 622 59,055 31 31 653 59,086 Construction and land development 734 39,607 — — 734 39,607 Commercial real estate 2,115 236,322 11 2,711 2,126 239,033 Residential real estate 1,071 106,863 — — 1,071 106,863 Consumer installment 173 9,588 — — 173 9,588 Total $ 4,715 451,435 42 2,742 4,757 454,177 (1) Represents loans collectively evaluated for impairment in accordance with ASC 450-20, Loss Contingencies (formerly FAS 5), and pursuant to amendments by ASU 2010-20 regarding allowance for unimpaired loans. (2) Represents loans individually evaluated for impairment in accordance with ASC 310-30, Receivables (formerly FAS 114), and pursuant to amendments by ASU 2010-20 regarding allowance for impaired loans. Credit Quality Indicators The credit quality of the loan portfolio is summarized no less frequently than quarterly using categories similar to the standard asset classification system used by the federal banking agencies. The following table presents credit quality indicators for the loan portfolio segments and classes. These categories are utilized to develop the associated allowance for loan losses using historical losses adjusted for qualitative and environmental factors and are defined as follows: Pass – loans which are well protected by the current net worth and paying capacity of the obligor (or guarantors, if any) or by the fair value, less cost to acquire and sell, of any underlying collateral. Special Mention – loans with potential weakness that may, if not reversed or corrected, weaken the credit or inadequately protect the Company’s position at some future date. These loans are not adversely classified and do not expose an institution to sufficient risk to warrant an adverse classification. Substandard Accruing – loa ns that exhibit a well-defined weakness which presently jeopardizes debt repayment, even though they are currently performing. These loans are characterized by the distinct possibility that the Company may incur a loss in the future if these weaknesses are not corrected. Nonaccrual – includes loans where management has determined that full payment of principal and interest is in doubt. (In thousands) Pass Special Mention Substandard Accruing Nonaccrual Total loans December 31, 2018 Commercial and industrial $ 61,568 1,377 522 — $ 63,467 Construction and land development 39,481 — 741 — 40,222 Commercial real estate: Owner occupied 55,942 154 317 — 56,413 Multifamily 40,455 — — — 40,455 Other 163,449 1,208 371 — 165,028 Total commercial real estate 259,846 1,362 688 — 261,896 Residential real estate: Consumer mortgage 50,903 1,374 3,768 178 56,223 Investment property 45,463 173 738 — 46,374 Total residential real estate 96,366 1,547 4,506 178 102,597 Consumer installment 9,149 75 71 — 9,295 Total $ 466,410 4,361 6,528 178 $ 477,477 December 31, 2017 Commercial and industrial $ 58,842 94 119 31 $ 59,086 Construction and land development 39,049 90 468 — 39,607 Commercial real estate: Owner occupied 43,615 240 337 — 44,192 Multifamily 52,167 — — — 52,167 Other 139,695 395 396 2,188 142,674 Total commercial real estate 235,477 635 733 2,188 239,033 Residential real estate: Consumer mortgage 54,101 1,254 3,586 599 59,540 Investment property 46,463 53 667 140 47,323 Total residential real estate 100,564 1,307 4,253 739 106,863 Consumer installment 9,430 66 78 14 9,588 Total $ 443,362 2,192 5,651 2,972 $ 454,177 Impaired loans The following table presents details related to the Company’s impaired loans. Loans which have been fully charged-off do not appear in the following table. The related allowance generally represents the following components which correspond to impaired loans: Individually evaluated impaired loans equal to or greater than $500 thousand secured by real estate (nonaccrual construction and land development, commercial real estate, and residential real estate). Individually evaluated impaired loans equal to or greater than $250 thousand not secured by real estate (nonaccrual commercial and industrial and consumer loans). The following table sets forth certain information regarding the Company’s impaired loans that were individually evaluated for impairment at December 31, 2018 and 2017 . December 31, 2018 (In thousands) Unpaid principal balance (1) Charge-offs and payments applied (2) Recorded investment (3) Related allowance With no allowance recorded: Commercial real estate: Owner occupied $ 157 — 157 Total commercial real estate 157 — 157 Total impaired loans $ 157 — 157 $ — (1) Unpaid principal balance represents the contractual obligation due from the customer. (2) Charge-offs and payments applied represents cumulative charge-offs taken, as well as interest payments that have been applied against the outstanding principal balance. (3) Recorded investment represents the unpaid principal balance less charge-offs and payments applied; it is shown before any related allowance for loan losses. December 31, 2017 (In thousands) Unpaid principal balance (1) Charge-offs and payments applied (2) Recorded investment (3) Related allowance With no allowance recorded: Commercial real estate: Other $ 3,630 (1,094) 2,536 Total commercial real estate 3,630 (1,094) 2,536 Total $ 3,630 (1,094) 2,536 With allowance recorded: Commercial and industrial $ 52 (21) 31 $ 31 Commercial real estate: Owner occupied 175 — 175 11 Total commercial real estate 175 — 175 11 Total $ 227 (21) 206 $ 42 Total impaired loans $ 3,857 (1,115) 2,742 $ 42 (1) Unpaid principal balance represents the contractual obligation due from the customer. (2) Charge-offs and payments applied represents cumulative charge-offs taken, as well as interest payments that have been applied against the outstanding principal balance. (3) Recorded investment represents the unpaid principal balance less charge-offs and payments applied; it is shown before any related allowance for loan losses. The following table provides the average recorded investment in impaired loans and the amount of interest income recognized on impaired loans after impairment by portfolio segment and class. Year ended December 31, 2018 Year ended December 31, 2017 Average Total interest Average Total interest recorded income recorded income (In thousands) investment recognized investment recognized Impaired loans: Commercial and industrial $ 9 — $ 50 — Construction and land development — — 11 — Commercial real estate: Owner occupied 166 9 184 10 Other 1,145 — 2,096 1 Total commercial real estate 1,311 9 2,280 11 Total $ 1,320 9 $ 2,341 11 Troubled Debt Restructurings Impaired loans also include troubled debt restructurings (“TDRs”). In the normal course of business, management may grant concessions to borrowers who are experiencing financial difficulty. A concession may include, but is not limited to, delays in required payments of principal and interest for a specified period, reduction of the stated interest rate of the loan, reduction of accrued interest, extension of the maturity date or reduction of the face amount or maturity amou nt of the debt. A concession has been granted when, as a result of the restructuring, the Bank does not expect to collect all amounts due, including interest at the original stated rate. A concession may have also been granted if the debtor is not able t o access funds elsewhere at a market rate for debt with similar risk characteristics as the restructured debt. In determining whether a loan modification is a TDR, the Company considers the individual facts and circumstances surrounding each modification. In determining the appropriate accrual status at the time of restructure, the Company evaluates whether a restructured loan has adequate collateral protection, among other factors. Similar to other impaired loans, TDRs are measured for impairment bas ed on the present value of expected payments using the loan’s original effective interest rate as the discount rate, or the fair value of the collateral, less selling costs if the loan is collateral dependent. If the recorded investment in the loan exceeds the measure of fair value, impairment is recognized by establishing a valuation allowance as part of the allowance for loan losses or a charge-off to the allowance for loan losses. In periods subsequent to the modification, all TDRs are evaluated individ ually, including those that have payment defaults, for possible impairment. The following is a summary of accruing and nonaccrual TDRs and the related loan losses, by portfolio segment and class. TDRs Related (In thousands) Accruing Nonaccrual Total Allowance December 31, 2018 Commercial real estate: Owner occupied $ 157 — 157 $ — Total commercial real estate 157 — 157 — Total $ 157 — 157 $ — December 31, 2017 Commercial and industrial $ — 31 31 $ 31 Commercial real estate: Owner occupied 175 — 175 11 Other 287 1,431 1,718 — Total commercial real estate 462 1,431 1,893 11 Total $ 462 1,462 1,924 $ 42 At December 31, 2018 , there were no significant outstanding commitments to advance additional funds to customers whose loans had been restructured. The following table summarizes loans modified in a TDR during the respective years both before and after modification. Pre- Post- modification modification outstanding outstanding Number of recorded recorded ($ in thousands) contracts investment investment December 31, 2018 Commercial real estate: Other 2 $ 1,447 1,447 Total commercial real estate 2 1,447 1,447 Total 2 $ 1,447 1,447 December 31, 2017 Commercial and industrial 1 $ 34 34 Commercial real estate: Other 1 $ 1,275 1,266 Total commercial real estate 1 1,275 1,266 Total 2 $ 1,309 1,300 The majority of the loans modified in a TDR during the years ended December 31, 2018 and 2017 , respectively, included delays in required payments of principal and/or interest or where the only concession granted by the Company was that the interest rate at renewal was not considered to be a market rate. The following table summarizes the recorded investment in loans modified in a TDR within the previous twelve months for which there was a payment default (defined as 90 days or more past due) during the year ended December 31, 2018 . During the year ended December 31, 2017, the Company had no loans modified in a TDR within the previous 12 months for which there was a payment default. Number of Recorded ($ in thousands) Contracts investment (1) December 31, 2018 Commercial real estate: Other 1 $ 1,259 Total commercial real estate 1 1,259 Total 1 $ 1,259 (1) Amount as of applicable month end during the respective year for which there was a payment default.

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2018
Premises and Equipment [Abstract]
Premises and Equipment Text Block	NOTE 6 : PREMISES AND EQUIPMENT Premises and equipment at December 31, 2018 and 2017 is presented below December 31 (Dollars in thousands) 2018 2017 Land $ 7,473 7,473 Buildings and improvements 10,438 10,394 Furniture, fixtures, and equipment 3,357 3,161 Total premises and equipment 21,268 21,028 Less: accumulated depreciation (7,672) (7,237) Premises and equipment, net $ 13,596 13,791 Depreciation expense was approximately $435 thousand and $428 thousand for the years ended December 31, 2018 and 2017 , respectively , and is a component of net occupancy and equipment expense in the consolidated statements of earnings .

Mortgage Servicing Rights, Net

Mortgage Servicing Rights, Net	12 Months Ended
	Dec. 31, 2018
Mortgage Servicing [Abstract]
Transfers and Servicing of Financial Assets [Text Block]	NOTE 7 : MORTGAGE SERVICING RIGHTS, NET MSRs are recognized based on the fair value of the servicing rights on the date the corresponding mortgage loans are sold. An estimate of the Company’s MSRs is determined using assumptions that market participants would use in estimating future net servicing income, including estimates of prepayment speeds, discount rate, default rates, cost to service, escrow account earnings, contractual servicing fee income, ancillary income, and late fees. Subsequent to the date of transfer, the Company has elected to measure its MSRs under the amortization method. Under the a mortization method, MSRs are amortized in proportion to, and over the period of, estimated net servicing income. Ser vicing fee income is recorded net of related amortization expense and recognized in earnings as part of mortgage lending income. The Company has recorded MSRs related to loans sold without recourse to Fannie Mae. The Company generally sells conforming, fixed-rate, closed-end, residential mortgages to Fannie Mae. MSRs are included in other assets on the accompanying consolidated balance sheets. The Company evaluates MSRs for impairment on a quarterly basis. Impairment is determined by stratifying MSR s into groupings based on predominant risk characteristics, such as interest rate and loan type. If, by individual stratum, the carrying amount of the MSRs exceeds fair value, a valuation allowance is established. The valuation allowance is adjusted as t he fair value changes. Changes in the valuation allowance are recognized in earnings as a component of mortgage lending income. The following table details the changes in amortized MSRs and the related valuation allowance for the years ended December 31 , 2018 and 2017 . Year ended December 31 (Dollars in thousands) 2018 2017 Beginning balance $ 1,644 1,952 Additions, net 208 224 Amortization expense (411) (533) Change in valuation allowance — 1 Ending balance $ 1,441 1,644 Valuation allowance included in MSRs, net: Beginning of period $ — 1 End of period — — Fair value of amortized MSRs: Beginning of period $ 2,528 2,678 End of period 2,697 2,528 Data an d assumptions used in the fair value calculation related to MSRs at December 31, 2018 and 2017 , respectively, are presented below. December 31 (Dollars in thousands) 2018 2017 Unpaid principal balance $ 289,981 312,318 Weighted average prepayment speed (CPR) 8.3 % 10.2 Discount rate (annual percentage) 10.0 % 10.0 Weighted average coupon interest rate 3.9 % 3.8 Weighted average remaining maturity (months) 250 253 Weighted average servicing fee (basis points) 25.0 25.0 At December 31 , 2018 , the weighted average amortization period for MSRs was 6.7 years. Estimated amortization expense for each of the next five years is presented below. (Dollars in thousands) December 31, 2018 2019 $ 198 2020 174 2021 152 2022 131 2023 115

Deposits

Deposits	12 Months Ended
	Dec. 31, 2018
Deposits:
Deposits Text Block	NOTE 8 : DEPOSITS At December 31, 2018 , the scheduled maturities of certificates of deposit and other time deposits are presented below. (Dollars in thousands) December 31, 2018 2019 $ 108,363 2020 28,888 2021 16,630 2022 20,966 2023 6,390 Total certificates of deposit and other time deposits $ 181,237 Additionally, at December 31, 2018 and 2017 , approximately $59.4 million and $55.2 million, respectively, of certificates of deposit and other time deposits were issued in denominations of $250 thousand or greater. At December 31, 2018 and 2017 , the amount of deposit accounts in overdraft status that were reclassified to loans on the accompanying consolidated balance sheets was not material.

Short-term Borrowings

Short-term Borrowings	12 Months Ended
	Dec. 31, 2018
Short-term Debt:
Short-term Debt Text Block	NOTE 9 : SHORT-TERM BORROWINGS At December 31, 2018 and 2017 , the composition of short-term borrowings is presented below. 2018 2017 Weighted Weighted (Dollars in thousands) Amount Avg. Rate Amount Avg. Rate Federal funds purchased: As of December 31 $ — — $ — — Average during the year 2 2.50 % 9 2.01 % Maximum outstanding at any month-end — — Securities sold under agreements to repurchase: As of December 31 $ 2,300 0.50 % $ 2,658 0.50 % Average during the year 2,632 0.50 % 3,467 0.52 % Maximum outstanding at any month-end 3,241 4,152 Federal funds purchased represent unsecured overnight borrowings from other financial institutions by the Bank. The Bank had available federal fund lines totaling $41.0 million with none outstanding at December 31, 2018 . Securities sold under agreements to repurchase represent short-term borrowings with maturities less than one year collateralized by a portion of the Company’s securities portfolio. Securities with an aggregate carrying value of $5.6 million and $5.8 million at December 31, 2018 and 2017 , respectively, were pledged to secure securities sold under agreements to repurchase.

Long-term Debt

Long-term Debt	12 Months Ended
	Dec. 31, 2018
Long-term debt:
Long-term Debt Text Block	NOTE 10 : LONG-TERM DEBT At December 31, 2018 and 2017 , the composition of long-term debt is presented below. 2018 2017 Weighted Weighted (Dollars in thousands) Amount Avg. Rate Amount Avg. Rate Subordinated debentures, due 2033 $ — — % $ 3,217 4.63 % Total long-term debt $ — — % $ 3,217 4.63 % The Company formed Auburn National Bancorporation Capital Trust I (the “Trust”) , a wholly-owned statutory business trust, in 2003. The Trust issued $7.0 million of trust preferred securities that were sold to third parties. The proceeds from the sale of the trust preferred securities and tr ust common securities that we he ld, were used to purchase junior subordinated debentures of $7.2 million from the Company, which are presented as long-term debt in the consolidated balance sheets and qualify for inclus ion in Tier 1 capital for regulatory capital purposes, subject to certain limitations. The debentures would have mature d on December 31, 2033 and had been redeemable since December 31, 2008. On April 27, 2018, the Trust formally redeemed all of its issue d and outstanding trust preferred securities at par. The Company had repurchased $4.0 million par amount of trust preferred securities issued by the Trust in October 2016, at a discount. The additional amount paid on April 27, 2018 for trust preferred secu rities not previously purchased by the Company was approximately $3.0 million, including accrued and unpaid distributions. All junior subordinated debentures related to the Trust were redeemed and retired as a result of the action. The Company now has no outstanding trust preferred securities or junior subordinated debentures, an d the Trust has been dissolved.

Other Comprehensive Income Disc

Other Comprehensive Income Disclosure	12 Months Ended
	Dec. 31, 2018
Other Comprehensive Income Loss [Abstract]
Other Comprehensive Income (Loss) [Text Block]	NOTE 11 : OTHER COMPREHENSIVE INCOME (LOSS) Comprehensive income is defined as the change in equity from all transactions other than those with stockholders, and it includes net earnings and other comprehensive (loss) income . Other comprehensive (loss) income for the years ended December 31, 2018 and 2017 , is presented below. Pre-tax Tax benefit Net of (In thousands) amount (expense) tax amount 2018: Unrealized net holding loss on all other securities $ (4,269) 1,072 (3,197) Other comprehensive loss $ (4,269) 1,072 (3,197) 2017: Unrealized net holding gain on all other securities $ 417 (154) 263 Reclassification adjustment for net gain on securities recognized in net earnings (51) 19 (32) Other comprehensive income $ 366 (135) 231

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2018
Income Taxes
Income Taxes Text Block	NOTE 12 : INCOME TAXES For the years ended December 31, 2018 and 2017 the components of income tax expense from continuing operations are presented below. Year ended December 31 (Dollars in thousands) 2018 2017 Current income tax expense: Federal $ 1,685 2,782 State 431 499 Total current income tax expense 2,116 3,281 Deferred income tax expense (benefit): Federal 56 384 State 15 (28) Total deferred income tax expense 71 356 Total income tax expense $ 2,187 3,637 Total income tax expense differs from the amounts computed by applying the statutory federal income tax rate of 21% and 34% for the years ended Decem ber 31, 2018 and 2017 , respectively, to earnings before income taxes. A reconciliation of the differences for the years ended December 31, 2018 and 2017 , is presented below. 2018 2017 Percent of Percent of pre-tax pre-tax (Dollars in thousands) Amount earnings Amount earnings Earnings before income taxes $ 11,021 11,483 Income taxes at statutory rate 2,315 21.0 % 3,904 34.0 % Tax-exempt interest (515) (4.7) (813) (7.0) State income taxes, net of federal tax effect 361 3.3 325 2.8 Bank-owned life insurance (92) (0.8) (150) (1.3) Federal tax reform impact — — 370 3.2 Other 118 1.0 1 — Total income tax expense $ 2,187 19.8 % 3,637 31.7 % The Tax Cuts and Jobs Act was signed into law on December 22, 2017. The net tax expense recognized as a result of the remeasurement of deferred taxes is presented as Federal tax reform impact in the above table. The Company had net deferred tax assets of $1.8 million and $0.8 million at December 31, 2018 and 2017 , respectively, included in other assets on the consolidated balance sheets. The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at December 31, 2018 and 2017 are presented below: December 31 (Dollars in thousands) 2018 2017 Deferred tax assets: Allowance for loan losses $ 1,203 1,195 Unrealized loss on securities 1,262 190 Other 135 216 Total deferred tax assets 2,600 1,601 Deferred tax liabilities: Premises and equipment 280 241 Originated mortgage servicing rights 362 413 Other 168 158 Total deferred tax liabilities 810 812 Net deferred tax asset $ 1,790 789 A valuation allowance is recognized for a deferred tax asset if, based on the weight of available evidence, it is more-likely-than-not that some portion of the entire deferred tax asset will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income and tax pl anning strategies in making this assessment. Based upon the level of historical taxable income and projection for future taxable income over the periods which the temporary differences resulting in the remaining deferred tax assets are deductible, manageme nt believes it is more-likely-than-not that the Company will realize the benefits of these deductible differences at December 31, 2018 . The amount of the deferred tax assets considered realizable, however, could be reduced in the near term if estimates of future taxable income are reduced. The change in the net deferred tax asset for the years ended December 31, 2018 and 2017 , is presented below. Year ended December 31 (Dollars in thousands) 2018 2017 Net deferred tax asset: Balance, beginning of year $ 789 1,280 Deferred tax expense related to continuing operations (71) (356) Stockholders' equity, for accumulated other comprehensive loss (income) 1,072 (135) Balance, end of year $ 1,790 789 ASC 740, Income Taxes, defines the threshold for recognizing the benefits of tax return positions in the financial statements as “more-likely-than-not” to be sustained by the taxing authority. This section also provides guidance on the de-recognition, measurement, and classifi cation of income tax uncertainties in interim periods. As of December 31, 2018 , the Company had no unrecognized tax benefits related to federal or state income tax matters. The Company does not anticipate any material increase or decrease in unrecogni zed tax benefits during 2019 relative to any tax positions taken prior to December 31, 2018 . As of December 31, 2018 , the Company has accrued no interest and no penalties related to uncertain tax positions. It is the Company’s policy to recognize i nterest and penalties related to income tax matters in income tax expense. The Company and its subsidiaries file consolidated U.S. federal and State of Alabama income tax returns. The Company is currently open to audit under the statute of limitations by the Internal Revenue Service and the State of Alabama for the years ended December 31, 2015 through 2018 .

Employee Benefits

Employee Benefits	12 Months Ended
	Dec. 31, 2018
Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]
Pension and Other Postretirement Benefits Disclosure [Text Block]	NOTE 13 : EMPLOYEE BENEFIT PLAN The Company has a 401(k) Plan that covers substantially all employees. Participants may contribute up to 10 % of eligible compensation subject to certain limits based on federal tax laws. The Company’s matching contributions to the Plan are determined by the board of directors. Participants become 20% vested in their accounts after two years of service and 100% vested after six years of service. Company matching contributions to the Plan were $131 thousand and $127 thousand for the years ended December 31, 2018 and 2017 , respectively, and are included in salaries and benefits expense.

Derivative Instruments

Derivative Instruments	12 Months Ended
	Dec. 31, 2018
Derivative instruments and hedging activities disclosure abstract
Derivative Instruments And Hedging Activities Disclosure Text Block	NOTE 14 : DERIVATIVE INSTRUMENTS Financial derivatives are reported at fair value in other assets or other liabilities on the accompanying consolidated balance sheets. The accounting for changes in the fair value of a derivative depends on whether it has been designated and qualifies as part of a hedging relationship. For derivatives not designated as part of a hedging relationship, the gain or loss is recognized in current earnings within other noninterest income on the accompanying consolidated stat ements of earnings. From time to time, the Company may enter into interest rate swaps (“swaps”) to facilitate customer transactions and meet their financing needs. Upon entering into these swaps, the Company enters into offsetting positions in order to min imize the risk to the Company. These swaps qualify as derivatives, but are not designated as hedging instruments. At December 31, 2018 and December 31, 2017 , the Company had no derivative contracts to assist in managing its own interest rate sensitivity. Interest rate swa p agreements involve the risk of dealing with counterparties and their ability to meet contractual terms. When the fair value of a derivative instrument is positive, this generally indicates that the counterparty or customer owes the Company, and results i n credit risk to the Company. When the fair value of a derivative instrument contract is negative, the Company owes the customer or counterparty and therefore, has no credit risk. The Company had no interest rate swaps as of Decemb er 31, 2018 . A summary of the Company’s interest rate swaps as of and for the year ended December 31, 2017 is presented below. Other Other Other noninterest Assets Liabilities income Estimated Estimated Gains (Dollars in thousands) Notional Fair Value Fair Value (Losses) December 31, 2017: Pay fixed / receive variable $ 3,617 — 52 $ 189 Pay variable / receive fixed 3,617 52 — (189) Total interest rate swap agreements $ 7,234 52 52 $ —

Commitments and Contigent Liabi

Commitments and Contigent Liabilities	12 Months Ended
	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Text Block]	NOTE 15 : COMMITMENT S AND CONTINGEN T LIABILITIES Credit-Related Financial Instruments The Company is party to credit related financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit and standby letters of credit. Such commitments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the consolidated bala nce sheets. The Company’s exposure to credit loss is represented by the contractual amount of these commitments. The Company follows the same credit policies in making commitments as it does for on-balance sheet instruments. At December 31, 2018 and 2017 , the following financial instruments were outstanding whose contract amount represents credit risk: December 31 (Dollars in thousands) 2018 2017 Commitments to extend credit $ 61,889 $ 57,014 Standby letters of credit 7,026 7,390 Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the agreement. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. The commitments for lines of credit may expire without being drawn upon. Therefore, total commitment amounts do not necessarily represent future cash requirements. The amount of collateral obtained, if it is deemed necessary by the Company, is base d on management’s credit evaluation of the customer. Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. The credit risk involved in issuing letters of credit is essenti ally the same as that involved in extending loan facilities to customers. The Company holds various assets as collateral, including accounts receivable, inventory, equipment, marketable securities, and property to support those commitments for which colla teral is deemed necessary. The Company has recorded a liability for the estimated fair value of these standby letters of credit in the amount of $73 thousand and $79 thousand at December 31, 2018 and 2017 , respectively. Other Commitments Minimum l ease payments under leases classified as operating leases due in each of the five years subsequent to December 31, 2018 , are as follows: 2019, $152 thousand; 2020, $94 thousand; 2021, $67 thousand; 2022, $60 thousand; 2023, $60 thousand. Contingent Li abilities The Company and the Bank are involved in various legal proceedings, arising in connection with their business. In the opinion of management, based upon consultation with legal counsel, the ultimate resolution of these proceeding will not have a material adverse effect upon the consolidated financial condition or results of operations of the Company and the Bank.

Fair Value Disclosures

Fair Value Disclosures	12 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value Disclosures Text Block	NOTE 16 : FAIR VALUE Fair Value Hierarchy “Fair value” is defined by ASC 820, Fair Value Measurements and Disclosures , as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction occurring in the principal market (or most advantageous market in the absence of a principal market) for an asset or liability at the measurement date. GAAP establishes a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The fair value hierarchy is as follows: Level 1—inputs to the valuation methodology are quoted prices, unadjusted, for identical assets or liabilities in active markets. Level 2—inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, or inputs that are observable fo r the asset or liability, either directly or indirectly. Level 3—inputs to the valuation methodology are unobservable and reflect the Company’s own assumptions about the inputs market participants would use in pricing the asset or liability. Level c hanges in fair value measurements Transfers between levels of the fair value hierarchy are generally recognized at the end of the reporting period. The Company monitors the valuation techniques utilized for each category of financial assets and liabilit ies to ascertain when transfers between levels have been affected. The nature of the Company’s financial assets and liabilities generally is such that transfers in and out of any level are expected to be infrequent. For the years ended December 31, 2018 and 2017 , there were no transfers between levels and no changes in valuation techniques for the Company’s financial assets and liabilities. Assets and liabilities measured at fair value on a recurring basis Securities available-for-sale Fair values of securiti es available for sale were primarily measured using Level 2 inputs. For these securities, the Company obtains pricing from third party pricing services. These third party pricing services consider observable data that may include broker/dealer quotes, ma rket spreads, cash flows, market consensus prepayment speeds, benchmark yields, reported trades for similar securities, credit information and the securities’ terms and conditions. On a quarterly basis, management reviews the pricing received from the thi rd party pricing services for reasonableness given current market conditions. As part of its review, management may obtain non-binding third party broker quotes to validate the fair value measurements. In addition, management will periodically submit pri cing provided by the third party pricing services to another independent valuation firm on a sample basis. This independent valuation firm will compare the price provided by the third party pricing service with its own price and will review the significan t assumptions and valuation methodologies used with management. Interest rate swap agreements The carrying amount of interest rate swap agreements was included in other assets and accrued expenses and other liabilities on the accompanying consolidated balance sheets. The fair value measurements for our interest rate swap agreements were based on information obtained from a third party bank. This information is periodically tested by the Company and validated against other third party valuations. If needed, other third party market participants may be utilized to corroborate the fair value measurements for our interest rate swap agreements. The Company classified these derivative assets and liabilities within Level 2 of the valuation hierarchy. These swaps qualify as derivatives, but are not designated as hedging instruments. The following table presents the balances of the assets and liabilities measured at fair value on a recurring basis as of December 31, 2018 and 2017 , respectively, by caption, on th e accompanying consolidated balance sheets by ASC 820 valuation hierarchy (as described above). Quoted Prices in Significant Active Markets Other Significant for Observable Unobservable Identical Assets Inputs Inputs (Dollars in thousands) Amount (Level 1) (Level 2) (Level 3) December 31, 2018: Securities available-for-sale: Agency obligations $ 51,171 — 51,171 — Agency RMBS 118,598 — 118,598 — State and political subdivisions 70,032 — 70,032 — Total securities available-for-sale 239,801 — 239,801 — Total assets at fair value $ 239,801 — 239,801 — December 31, 2017: Securities available-for-sale: Agency obligations $ 53,062 — 53,062 — Agency RMBS 133,072 — 133,072 — State and political subdivisions 71,563 — 71,563 — Total securities available-for-sale 257,697 — 257,697 — Other assets (1) 52 — 52 — Total assets at fair value $ 257,749 — 257,749 — Other liabilities (1) 52 — 52 — Total liabilities at fair value $ 52 — 52 — (1) Represents the fair value of interest rate swap agreements. Assets and liabilities measured at fair value on a nonrecurring basis Loans held for sale Loans held for sale are carried at the lower of cost or fair value. Fair values of loans held for sale are determined using quoted market secondary market prices for similar loans. Loans held for sale are classified within Level 2 of the fair value hierarchy. Impaired Loans Loans considered impaired under ASC 310-10-35, Receivables , are loans for which, based on current information and events, it is probable tha t the Company will be unable to collect all principal and interest payments due in accordance with the contractual terms of the loan agreement. Impaired loans can be measured based on the present value of expected payments using the loan’s original effect ive rate as the discount rate, the loan’s observable market price, or the fair value of the collateral less selling costs if the loan is collateral dependent. The fair value of impaired loans were primarily measured based on the value of the collateral securing these loans. Impaired loans are classified within Level 3 of the fair value hierarchy. Collateral may be real estate and/or business assets including equipment, inventory, and/or accounts receivable. The Company determines the value of the coll ateral based on independent appraisals performed by qualified licensed appraisers. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Appraised values are discounted for costs to sell and may be discounted further based on management’s historical knowledge, changes in market conditions from the date of the most recent appraisal, and/or management’s expertise and knowledge of the customer and the customer’s business. Such discounts by management are subjective and are typically significant unobservable inputs for determining fair value. Impaired loans are reviewed and evaluated on at least a quarterly basis for additional impairment and adjusted accordingly, based on the same factors discussed above. Other real estate owned Other real estate owned, consisting of properties obtained through foreclosure or in satisfaction of loans, are initially recorded at the lower of the loan’s carrying amount or the fair value less costs to sell upon transfer of the loans to other real estate. Subsequently, other real estate is carried at the lower of carrying value or fair value less costs to sell. Fair values are generally based on third party appraisals of the property and are classified within Level 3 of the fair value hierarchy. The appraisals are sometimes further discounted based on management’s historical knowledge, and/or changes in market conditions from the date of the most recent appraisal, and/or management’s expe rtise and knowledge of the customer and the customer’s business. Such discounts are typically significant unobservable inputs for determining fair value. In cases where the carrying amount exceeds the fair value, less costs to sell, a loss is recognized in noninterest expense. Mortgage servicing rights, net Mortgage servicing rights, net, included in other assets on the accompanying consolidated balance sheets, are carried at the lower of cost or estimated fair value. MSRs do not trade in an active m arket with readily observable prices. To determine the fair value of MSRs, the Company engages an independent third party. The independent third party’s valuation model calculates the present value of estimated future net servicing income using assumptio ns that market participants would use in estimating future net servicing income, including estimates of prepayment speeds, discount rate, default rates, cost to service, escrow account earnings, contractual servicing fee income, ancillary income, and late fees. Periodically, the Company will review broker surveys and other market research to validate significant assumptions used in the model. The significant unobservable inputs include prepayment speeds or the constant prepayment rate (“CPR”) and the weig hted average discount rate. Because the valuation of MSRs requires the use of significant unobservable inputs, all of the Company’s MSRs are classified within Level 3 of the valuation hierarchy. The following table presents the balances of the assets and liabilities measured at fair value on a nonrecurring basis as of December 31, 2018 and 2017 , respectively, by caption, on the accompanying consolidated balance sheets and by ASC 820 valuation hierarchy (as described above): Quoted Prices in Active Markets Other Significant for Observable Unobservable Identical Assets Inputs Inputs (Dollars in thousands) Amount (Level 1) (Level 2) (Level 3) December 31, 2018: Loans held for sale $ 383 — 383 — Loans, net (1) 157 — — 157 Other real estate owned 172 — — 172 Other assets (2) 1,441 — — 1,441 Total assets at fair value $ 2,153 — 383 1,770 December 31, 2017: Loans held for sale $ 1,922 — 1,922 — Loans, net (1) 2,700 — — 2,700 Other assets (2) 1,644 — — 1,644 Total assets at fair value $ 6,266 — 1,922 4,344 (1) Loans considered impaired under ASC 310-10-35 Receivables. This amount reflects the recorded investment in impaired loans, net of any related allowance for loan losses. (2) Represents MSRs, net, carried at lower of cost or estimated fair value. At December 31, 2018 a nd 2017 and for the years then ended, the Company had no Level 3 assets measured at fair value on a recurring basis. For Level 3 assets measured at fair value on a non-recurring basis as of December 31, 2018 , the significant unobservable inputs used in the fair value measurements are presented below. Weighted Carrying Average (Dollars in thousands) Amount Valuation Technique Significant Unobservable Input of Input Nonrecurring: Impaired loans $ 157 Appraisal Appraisal discounts (%) 10.0 % Other real estate owned 172 Appraisal Appraisal discounts (%) 10.0 % Mortgage servicing rights, net 1,441 Discounted cash flow Prepayment speed or CPR (%) 8.3 % Discount rate (%) 10.0 % Fair Value of Financial Instruments ASC 825, Financial Instruments , requires disclosure of fair value information about financial instruments, whether or not recognized on the face of the balance sheet, for which it is practicable to estimate that value. The assumptions used in the estimation of the fair value of the Company’s financial instruments are explained below. Where quoted market prices are not available, fair values are based on estimates using discounted cash flow analyses. Discounted cash flows can be significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. The following fair value estima tes cannot be substantiated by comparison to independent markets and should not be considered representative of the liquidation value of the Company’s financial instruments, but rather are a good-faith estimate of the fair value of financial instruments he ld by the Company. ASC 825 excludes certain financial instruments and all nonfinancial instruments from its disclosure requirements. The following methods and assumptions were used by the Company in estimating the fair value of its financial instrument s: Loans, net Fair values for loans were calculated using discounted cash flows. The discount rates reflected current rates at which similar loans would be made for the same remaining maturities. Expected future cash flows were projected based on contractual cash flows, adjusted for estimated prepayments. In accordance with the prospective adoption of ASU No. 2016-01, the fair value of loans as of December 31 , 2018 was measured using an exit price notion. The fair value of loans as of December 31, 2017 was measured using an entry price notion. Loans held for sale Fair values of loans held for sale are determined using quoted market secondary market prices for similar loans . Time Deposits Fair values for time deposits were estimated using discounted cash f lows. The discount rates were based on rates currently offered for deposits with similar remaining maturities. Long-term debt The carrying amount of the Company’s variable rate long-term debt approximates its fair value. The carrying value, related estimated fair value, and placement in the fair value hierarchy of the C ompany’s financial instruments at December 31, 2018 and 2017 are presented below. This table excludes financial instruments for which the carrying amount approximates fair value. Financial assets for which fair value approximates carrying value included cash and cash equivalents. Financial liabilities for which fair value approximates carrying value included noninterest-bearing demand, interest-bearing demand, and savings deposits due to these products having no stated maturity. In addition, financial liabil ities for which fair value approximates carrying value included overnight borrowings such as federal funds purchased and securities sold under agreements to repurchase. Fair Value Hierarchy Carrying Estimated Level 1 Level 2 Level 3 (Dollars in thousands) amount fair value inputs inputs Inputs December 31, 2018: Financial Assets: Loans, net (1) $ 472,118 $ 465,456 $ — $ — $ 465,456 Loans held for sale 383 397 — 397 — Financial Liabilities: Time Deposits $ 181,237 $ 181,168 $ — $ 181,168 $ — December 31, 2017: Financial Assets: Loans, net (1) $ 448,894 $ 447,468 $ — $ — $ 447,468 Loans held for sale 1,922 1,950 — 1,950 — Financial Liabilities: Time Deposits $ 188,071 $ 185,564 $ — $ 185,564 $ — Long-term debt 3,217 3,217 — 3,217 — (1) Represents loans, net of unearned income and the allowance for loan losses. In accordance with the prospective adoption of ASU No. 2016-01, the fair value of loans as of December 31, 2018 was measured using an exit price notion. The fair value of loans as of December 31, 2017 was measured using an entry price notion.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2018
Related Party Transactions [Abstract]
Related Party Transactions Disclosure [Text Block]	NOTE 17 : RELATED PARTY TRANSACTIONS The Bank has made, and expects in the future to continue to make in the ordinary course of business, loans to directors and executive officers of the Company, the Bank, and their affiliates. In management’s opinion, these loans were made in the ordinary course of business at normal credit terms, including interest rate and collateral requirements, and do not represent more than normal credit risk. An analysis of such outstanding loans is presented below. (Dollars in thousands) Amount Loans outstanding at December 31, 2017 $ 3,068 New loans/advances 5,871 Repayments (732) Loans outstanding at December 31, 2018 $ 8,207 During 2018 and 2017 , certain executiv e officers and directors of the Company and the Bank, including companies with which they are affiliated, were deposit customers of the bank. Total deposits for these persons at December 31, 2018 and 2017 amounted to $19.8 million and $17.8 million, respectively .

Regulatory Restrictions and Cap

Regulatory Restrictions and Capital Ratios	12 Months Ended
	Dec. 31, 2018
Regulatory Capital Requirements [Abstract]
Regulatory Capital Requirements under Banking Regulations [Text Block]	NOTE 18 : REGULATORY RESTRICTIONS AND CA PITAL RATIOS As required by the Economic Growth, Regulatory Relief, and Consumer Protection Act in August 2018, the Federal Reserve Board issued an interim final rule that expanded applicability of the Board’s small bank holding company policy statement. The interim final rule raised the policy statement’s asset threshold from $1 billion to $3 billion in total consolidated assets for a bank holding company or savings and loan holding company that: (1) is not eng aged in significant nonbanking activities; (2) does not conduct significant off-balance sheet activities; and (3) does not have a material amount of debt or equity securities, other than trust-preferred securities, outstanding. The interim final rule provi des that, if warranted for supervisory purposes, the Federal Reserve may exclude a company from the threshold increase. Management believes the Company meets the conditions of the Federal Reserve’s small bank holding company policy statement and is therefo re excluded from consolidated capital requirements at December 31, 2018. The Bank remains subject to regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory - and possibly additional discretionary - actions by regulators that, if undertaken, could have a direct material effect on the Company’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, th e 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. As of December 31, 2018 , the Bank is “well capitalized” under the regulatory framework for prompt corrective action. To be categorized as “well capitalized,” the Bank must maintain minimum common equity Tier 1, total risk-based, Tier 1 risk-based, and Tier 1 leverage ratios as set forth in the table. Management has not received any notification from the Bank's regulators that changes the Bank’s regulatory capit al status. The actual capital amounts and ratios and the aforementioned minimums as of December 31, 2018 and 2017 are presented below. Minimum for capital Minimum to be Actual adequacy purposes well capitalized (Dollars in thousands) Amount Ratio Amount Ratio Amount Ratio At December 31, 2018: Tier 1 Leverage Capital AuburnBank $ 91,719 11.33 % $ 32,368 4.00 % $ 40,461 5.00 % Common Equity Tier 1 Capital AuburnBank $ 91,719 16.49 % $ 25,031 4.50 % $ 36,156 6.50 % Tier 1 Risk-Based Capital AuburnBank $ 91,719 16.49 % $ 33,375 6.00 % $ 44,500 8.00 % Total Risk-Based Capital AuburnBank $ 96,661 17.38 % $ 44,500 8.00 % $ 55,625 10.00 % At December 31, 2017: Tier 1 Leverage Capital Auburn National Bancorporation $ 90,382 10.95 % $ 33,012 4.00 % N/A N/A AuburnBank 89,217 10.82 32,978 4.00 $ 41,222 5.00 % Common Equity Tier 1 Capital Auburn National Bancorporation $ 87,382 16.42 % $ 23,949 4.50 % N/A N/A AuburnBank 89,217 16.74 23,987 4.50 $ 34,648 6.50 % Tier 1 Risk-Based Capital Auburn National Bancorporation $ 90,382 16.98 % $ 31,932 6.00 % N/A N/A AuburnBank 89,217 16.74 31,983 6.00 $ 42,644 8.00 % Total Risk-Based Capital Auburn National Bancorporation $ 95,300 17.91 % $ 42,576 8.00 % N/A N/A AuburnBank 94,135 17.66 42,644 8.00 $ 53,305 10.00 % Dividends paid by the Bank are a principal source of funds available to the Company for payment of dividends to its stockholders and for other needs. Applicable federal and state statutes and regulations impose restrictions on the amounts of dividends that may be declared by the subsidiary bank. State law and Federal Reserve policy restrict the Bank from declaring dividends in excess of the sum of the current year’s earnings plus the retained net earnings from the preceding two years without prior appro val. In addition to the formal statutes and regulations, regulatory authorities also consider the adequacy of the Bank’s total capital in relation to its assets, deposits, and other such items. Capital adequacy considerations could further limit the availa bility of dividends from the Bank. At December 31, 2018 , the Bank could have declared additional dividends of approximately $8.0 million without prior approval of regulatory authorities. As a result of this limitation, approximately $79.9 million of th e Company’s investment in the Bank was restricted from transfer in the form of div idends.

Auburn National Bancorporation

Auburn National Bancorporation - Parent Company Financials	12 Months Ended
	Dec. 31, 2018
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Financial Information of Parent Company Only Disclosure [Text Block]	NOTE 19 : AUBURN NATIONAL BANCOR PORATION (PARENT COMPANY) The Parent Company’s condensed balance sheets and related condensed statements of earnings and cash flows are as follows: CONDENSED BALANCE SHEETS December 31 (Dollars in thousands) 2018 2017 Assets: Cash and due from banks $ 1,941 1,170 Investment in bank subsidiary 87,956 88,741 Other assets 626 1,760 Total assets $ 90,523 91,671 Liabilities: Accrued expenses and other liabilities $ 1,468 1,548 Long-term debt — 3,217 Total liabilities 1,468 4,765 Stockholders' equity 89,055 86,906 Total liabilities and stockholders' equity $ 90,523 91,671 CONDENSED STATEMENTS OF EARNINGS Year ended December 31 (Dollars in thousands) 2018 2017 Income: Dividends from bank subsidiary $ 6,533 3,471 Noninterest income 149 141 Total income 6,682 3,612 Expense: Interest expense 51 125 Noninterest expense 237 225 Total expense 288 350 Earnings before income tax benefit and equity in undistributed earnings of bank subsidiary 6,394 3,262 Income tax benefit (28) (58) Earnings before equity in undistributed earnings of bank subsidiary 6,422 3,320 Equity in undistributed earnings of bank subsidiary 2,412 4,526 Net earnings $ 8,834 7,846 CONDENSED STATEMENTS OF CASH FLOWS Year ended December 31 (Dollars in thousands) 2018 2017 Cash flows from operating activities: Net earnings $ 8,834 7,846 Adjustments to reconcile net earnings to net cash provided by operating activities: Net decrease (increase) in other assets 1,134 (879) Net decrease in other liabilities (70) (109) Equity in undistributed earnings of bank subsidiary (2,412) (4,526) Net cash provided by operating activities 7,486 2,332 Cash flows from financing activities: Repayments or retirement of long-term debt (3,217) — Dividends paid (3,498) (3,352) Net cash used in financing activities (6,715) (3,352) Net change in cash and cash equivalents 771 (1,020) Cash and cash equivalents at beginning of period 1,170 2,190 Cash and cash equivalents at end of period $ 1,941 1,170

Revenue Recognition

Revenue Recognition	12 Months Ended
	Dec. 31, 2018
Revenue Recognition [Abstract]
Revenue Recognition Policy	NOTE 20 : REVEN UE RECOGNITION On January 1, 2018, the Company implemented ASU 2014-09, Revenue from Contracts with Customers , codified at ASC 606. The Company adopted ASC 606 using the modified retrospective transition method. As of December 31, 2017, the Company had no uncompleted customer contracts and, as a result, no cumulative transition adjustment was made to the Company’s accumulated defi cit during the year ended December 31, 2018. Results for reporting periods beginning January 1, 2018 are presented under ASC 606, while prior period amounts continue to be reported under legacy U.S. GAAP. The majority of the Company’s revenue stream is g enerated from interest income on loans and deposits which are outside the scope of ASC 606. The Company’s sources of income that fall within the scope of Topic 606 include service charges on deposits, investment services, interchange fees and gains and l osses on sales of other real estate, all of which are presented as components of noninterest income. The following is a summary of the revenue streams that fall within the scope of Topic 606: Service charges on deposits, investment services, ATM and inte rchange fees – Fees from these services are either transaction-based, for which the performance obligations are satisfied when the individual transaction is processed, or set periodic service charges, for which the performance obligations are satisfied ove r the period the service is provided. Transaction-based fees are recognized at the time the transaction is processed, and periodic service charges are recognized over the service period. Gains on sales of other real estate – ASU 2014-09 creates Topic 610-20, under which a gain on sale should be recognized when a contract for sale exists and control of the asset has been transferred to the buyer. Topic 606 lists several criteria required to conclude that a contract for sale exi sts, including a determination that the institution will collect substantially all of the consideration to which it is entitled. This presents a key difference between the prior and new guidance related to the recognition of the gain when the institution f inances the sale of the property. Rather than basing recognition on the amount of the buyer’s initial investment, which was the primary consideration under prior guidance, the analysis is now based on various factors including not only the loan to value, b ut also the credit quality of the borrower, the structure of the loan, and any other factors that may affect collectability.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2018
Summary of Signficant Accounting Policies
Nature of Business Policy	NOTE 1 : SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Nature of Business Auburn National Bancorporation, Inc. (the “Company”) is a bank holding company whose primary business is conducted by its wholly-owned subsidiary, AuburnBank (the “Bank”). AuburnBank is a commercial bank located in Auburn, Alabama. The Bank provides a full range of banking services in its primary market area, Lee County, which includ es the Auburn-Opelika Metropolitan Statistical Area.
Basis of Presentation Policy	Basis of Presentation The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiar ies. Auburn National Bancorporation Capital Trust I was an affiliate of th e Company and was included in these consolidated financial statements pursuant to the equity method of accounting. On April 27, 2018, the Trust was dissolved. Significant intercompany transactions and accounts are eliminated in consolidation.
Use of Estimates Policy	Use of Es timates The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of conting ent assets and liabilities as of the balance sheet date and the reported amounts of income and expense during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term include the determination of the allowance for loan losses , fair value measurements , valuation of other real estate owned, and valuation of deferred tax assets.
Accounting Standards Adopted in 2014	Acco unting Standards Adopted in 2018 In 2018 , the Company adopted new guidance related to the following Accounting Standards Update (“Update” or “ASU ”): ASU 2014-09, Revenue from Contracts with Customers; ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities ; ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments ; and ASU 2016-18, Restricted Cash . Information about these pronouncements is described in more detail below. ASU 2014-09 , Revenue from Contracts with Customers (Topic 606), was developed as a joint project with the International Accounting Standards Board to remove inconsistencies in revenue requirements and provide a more robust framework for addressing revenue issues. The ASU’s core principle is that an entity should recog nize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB issued ASU 2015-14, which deferr ed the effective date by one year (i.e., interim and annual reporting periods beginning after December 15, 2017). Early adoption was permitted, but not before the original effective date (i.e., interim and annual reporting periods beginning after December 15, 2016). The ASU may be adopted using either a modified retrospective method or a full retrospective method. The Company adopted the ASU during the first quarter of 2018, as required, using a modified retrospective approach. The majority of the Company’s revenue stream is generated from interest income on loans and deposits, which are outside the scope of Topic 606. The Company’s sources of income that fall within the scope of Topic 606 include service charges on deposits, investment services, interchange fees and gains and losses on sales of other real estate, all of which are presented as components of noninterest income. The Company has evaluated the effect of Topic 606 on these fee-based income streams and concluded that adoption of the standard did no t materially impact its financial statements. The following is a summary of the implementation considerations for the revenue streams that fall within the scope of Topic 606: Service charges on deposits, investment services, ATM and interchange fees – Fe es from these services are either transaction-based, for which the performance obligations are satisfied when the individual transaction is processed, or set periodic service charges, for which the performance obligations are satisfied over the period the service is provided. Transaction-based fees are recognized at the time the transaction is processed, and periodic service charges are recognized over the service period. The adoption of Topic 606 had no impact on the Company’s revenue recognition practice for these services. Gains on sales of other real estate – ASU 2014-09 creates Topic 610-20, under which a gain on sale should be recognized when a contract for sale exists and control of the asset has been transferred to the buyer. Topic 606 lists several criteria required to conclude that a contract for sale exists, including a determination that the institution will collect substantially all of the consideration to which it is entitled. This presents a key difference between the prior and new guidance re lated to the recognition of the gain when the institution finances the sale of the property. Rather than basing recognition on the amount of the buyer’s initial investment, which was the primary consideration under prior guidance, the analysis is now based on various factors including not only the loan to value, but also the credit quality of the borrower, the structure of the loan, and any other factors that may affect collectability. While these differences may affect the decision to recognize or defer ga ins on sales of other real estate in circumstances where the Company has financed the sale, the effects would not be material to its consolidated financial statements. ASU 2016-01, Financial Instruments – Overall (Subtopic 825-10): Recognition and Measur ement of Financial Assets and Financial Liabilities , enhances the reporting model for financial instruments to provide users of financial statements with more decision-useful information. The ASU addresses certain aspects of recognition, measurement, prese ntation, and disclosure of financial instruments. Some of the amendments include the following: (1) Require equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be me asured at fair value with changes in fair value recognized in net income; (2) Simplify the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment; (3) Require public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; (4) Require an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value; among others. For public business entities, the amendments of this ASU are effective for fiscal years beginning af ter December 15, 2017, including interim periods within those fiscal years. The adoption of this ASU on January 1, 2018 did not have a material impact on the Company’s Consolidated Financial Statements. In accordance with (3) above, the Company measured th e fair value of its loan portfolio as of December 31, 2018 using an exit price notion and will continue to do so going forward. See Note 16 , Fair Value. ASU 2016-15 , Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Pa yments, provides guidance on eight specific cash flow issues where current GAAP is either unclear or does not include specific guidance on classification in the statement of cash flows. The new guidance is effective for annual and interim reporting periods in fiscal years beginning after December 15, 2017. The Company adopted ASU No. 2016-15 on January 1, 2018. ASU No. 2016-15 did not have a material impact on the Company’s Consolidated Financial Statements. ASU 2016-18, Statement of Cash Flows (Topic 230) : Restricted Cash , amends guidance on how the statement of cash flows presents the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Under the new guidance, a mounts generally described as restricted cash and restricted cash equivalents are included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. The amendments in this Update do not provide a definition of restricted cash or restricted cash equivalents. The new guidance is effective for public business entities for annual and interim reporting periods in fiscal years beginning after December 15, 2017. The Company adopted ASU No. 2016-18 on January 1, 2018. ASU No. 2016-18 did not have a material impact on the Company’s Consolidated Financial Statements.
Cash Equivalents Policy	Cash Equivalents Cash equivalents include c ash on hand, cash items in process of collection, amounts due from banks, including interest bearing deposits with other banks, and federal funds sold.
Marketable Securities, Policy	For the securities in the previous table, the Company does not have the intent to sell and has determined it is not more likely than not that the Company will be required to sell the security before recovery of the amortized cost basis, which may be maturity. On a quarterly basis, the Company assesses each security for credit impairment. For debt securities, the Company evaluates, where necessary, whether credit impairment exists by comparing the present value of the expected cash flows to the securit ies’ amortized cost basis. In determining whether a loss is temporary, the Company considers all relevant information including: the length of time and the extent to which the fair value has been less than the amortized cost basis; adverse conditions specifically related to the security, an industry, or a geographic area (for example, changes in the financial condition of the issuer of the security, or in the case of an asset-backed debt security, in the financial condition of the underlying loan oblig ors, including changes in technology or the discontinuance of a segment of the business that may affect the future earnings potential of the issuer or underlying loan obligors of the security or changes in the quality of the credit enhancement); the histor ical and implied volatility of the fair value of the security; the payment structure of the debt security and the likelihood of the issuer being able to make payments that increase in the future; failure of the issuer of the security to make scheduled in terest or principal payments; any changes to the rating of the security by a rating agency; and recoveries or additional declines in fair value subsequent to the balance sheet date. Agency obligations The unrealized losses associated with agency obliga tions were primarily driven by changes in interest rates and not due to the credit quality of the securities. These securities were issued by U.S. government agencies or government-sponsored entities and did not have any credit losses given the explicit go vernment guarantee or other government support. Agency residential mortgage-backed securities (“RMBS”) The unrealized losses associated with agency RMBS were primarily driven by changes in interest rates and not due to the credit quality of the securiti es. These securities were issued by U.S. government agencies or government-sponsored entities and did not have any credit losses given the explicit government guarantee or other government support . Securities of U.S. states and political subdivisions T he unrealized losses associated with securities of U.S. states and political subdivisions were primarily driven by changes in interest rates and were not due to the credit quality of the securities. Some of these securities are guaranteed by a bond insurer , but management did not rely on the guarantee in making its investment decision. These securities will continue to be monitored as part of the Company’s quarterly impairment analysis, but are expected to perform even if the rating agencies reduce the cred it rating of the bond insurers. As a result, the Company expects to recover the entire amortized cost basis of these securities. The carrying values of the Company’s investment securities could decline in the future if the financial condition of an issue r deteriorates and the Company determines it is probable that it will not recover the entire amortized cost basis for the security. As a result, there is a risk that o ther-than-temporary impairment charges may occur in the future.
Loans Held for Sale Policy	Loans held for sale Loans originated and intended for sale in the secondary market are carried at the lower of cost or estimated fair value in the aggregate . Loan sales are recognized when the transaction closes, the proceeds are collected, and ownership is transferred. Continuing involvement, through the sales agreement, consists of the right to service the loan for a fee for the life of the loan, if applica ble. Gains on the sale of loans held for sale are recorded net of related costs, such as commissions, and reflected as a component of mortgage lending income in the consolidated statements of earnings. In the course of conducting the Bank’s mortgage lending activities of originating mortgage loans and selling those loans in the secondary market, the Bank makes various representations and warranties to the purchaser of the mortgage loans. Every loan closed by the Bank’s mortgage center is run through a government agency automated underwriting system. Any exceptions noted during this process are remedied prior to sale. These representations and warranties also apply to underwriting the real estate appraisal opinion of value for the collateral securing these loans. Failure by the Company to comply with the underwriting and/or appraisal standards could result in the Company being required to repurchase the mortgage loan or to reimburse the investor for losses incurred (make whole requests) if such failu re cannot be cured by the Company within the specified period following discovery.
Loans Policy	Loans Loans are reported at their outstanding principal balances, net of any unearned income , charge-offs, and any deferred fees or costs on originated loans. Interest income is accrued based on the principal balance outstanding.
Loans, Origination Fees Policy	Loan origination fees, net of certain loan origination costs, are deferred and recognized in interest income over the contractual life of the loan using the effective interest method. Loan com mitment fees are generally deferred and amortized on a straight-line basis over the commitment period , which results in a recorded amount that approximates fair value .
Loans, Nonacrrual Policy	The accrual of interest on loans is discontinued when there is a significant deteriora tion in the financial condition of the borrower and full repayment of principal and interest is not expected or the principal or interest is more than 90 days past due, unless the loan is both well-collateralized and in the process of collection. Generally , all interest accrued but not collected for loans that are placed on nonaccrual status is reversed against current interest income. Interest collections on non accrual loans are generally applied as principal reductions. The Company determines past due or delinquency status of a loan based on contractual payment terms.
Loans, Impaired Policy	A loan is considered impaired when it is probable the Company will be unable to collect all principal and interest payments due according to the contractual terms of the loan agreement. Ind ividually identified impaired loans are measured based on the present value of expected payments using the loan’s original effective rate as the discount rate, the loan’s observable market price, or the fair value of the collateral if the loan is collatera l dependent. If the recorded investment in the impaired loan exceeds the measure of fair value, a valuation allowance may be established as part of the allowance for loan losses. Changes to the valuation allowance are recorded as a component of the provisi on for loan losses.
Loans, Troubled Debt Restructuring Policy	Impaired loans also include troubled debt restructurings (“TDRs”). In the normal course of business, management may grant concessions to borrowers who are experiencing financial difficulty. The concessions granted most frequently for TDRs involve reductions or delays in required payments of principal and interest for a specified time, the rescheduling of payments in accordance with a bankruptcy plan or the charge-off of a portion of the loan. In most cases, the conditions of the credit also warrant nonaccrual st atus, even after the restructuring occurs. As part of the credit approval process, the restructured loans are evaluated for adequate collateral protection in determining the appropriate accrual s tatus at the time of restructuring . TDR loans may be returned to accrual status if there has been at least a six-month sustained period of repayment performance by the borrower.
Allowance for Loan Losses Policy	Allowance for Loan Losses The allowance for loan losses is maintained at a level that management believes is adequate to absorb probable losses inherent in the loan portfolio. Loan losses are charged against the allowance when they are known. Subsequent recoveries are credited to the allowance. Management’s determination of the adequacy of the allowance is based on an evaluation of the portfolio, current economic conditions, growth, composition of the loan portfolio, homogeneous pools of loans, risk ratings of specific loans, historica l loan loss factors, identified impaired loans and other factors related to the portfolio. This evaluation is performed quarterly and is inherently subjective, as it requires various material estimates that are susceptible to significant change, including the amounts and timing of future cash flows expected to be received on any impaired loans. In addition, regulatory agencies, as an integral part of their examination process, will periodically review the Company’s allowance for loan losses, and may require the Company to record additions to the allowance based on their judgment about information available to them at the time of their examinations.
Premises and Equipment Policy	Premises and Equipment Land is carried at cost. Buildings and equipment are carried at cost, less accumulat ed depreciation computed on a straight-line method over the useful lives of the assets or the expected terms of the leases, if shorter. Expected terms include lease option periods to the extent that the exercise of such options is reasonably assured.
Other Real Estate Owned Policy	Oth er Real Estate Owned Other real estate owned (“OREO”) includes properties acquired through, or in lieu of, loan foreclosure that are held for sale and are initially recorded at the lower of the loan’s carrying amount or fair value less cost to sell at the date of foreclosure, establishing a new cost basis. Subsequent to foreclosure, valuations are periodically performed by management and the assets are carried at the lower of carrying value amount or fair value less cost to sell. Gains or losses realized upon sale of OREO and additional losses related to subsequent valuation adjustments are determined on a specific property basis and are included as a component of noninterest expense along with holding costs.
Nonmarketable Equity Investments Policy	Nonmarketable equity investments Nonmarke table equity investments include equity securities that are not publicly traded and securities acquired for various purposes . The Bank is required to maintain certain minimum levels of equity investments with certain regulatory and other entities in which the Bank has an ongoing business relationship based on the Bank’s common stock and surplus (with regard to the relationship with the Federal Reserve Bank) or outstanding borrowings (with regard to the relationship with the Federal Home Loan Bank of Atlanta ). These nonmarketable equity securities are accounted for at cost which equals par or redemption value. These securities do not have a readily determinable fair value as their ownership is restricted and there is no market for these securities. These secu rities can only be redeemed or sold at their par value and only to the respective issuing government supported institution or to another member institution. The Company records these nonmarketable equity securities as a component of other assets, which are periodically evaluated for impairment. Management considers these nonmarketable equity securities to be long-term investments. Accordingly, when evaluating these securities for impairment, management considers the ultimate recoverability of the par value rather than by recognizing temporary declines in value.
Transfers and Servicing of Financial Assets, Policy	Transfers of Financial Assets Transfers of an entire financial asset (i.e. loan sales), a group of entire financial assets, or a participating interest in an entire financial asset (i.e. loan parti cipations sold) are accounted for as sales when control over the assets have been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets have been isolated from the Company, (2) the transferee obtains the right (free o f conditions that constrain it from taking that right) to pledge or exchange the transferred assets, and (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.
Mortgage Servicing Rights Policy	Mortga ge Servicing Rights The Company recognizes as assets the rights to service mortgage loans for others, known as MSRs. The Company determines the fair value of MSRs at the date the loan is transferred. An estimate of the Company’s MSRs is determined using assumptions that market participants would use in estimating future net servicing income, including estimates of pre p ayment speeds, discount rate, default rates, cost to service, escrow account earnings, contractual servicing fee income, ancillary income, and late fees. Subsequent to the date of transfer, the Company has elected to measure its MSRs under the amortization method. Under the amortization method, MSRs are amortized in proportion to, and over the period of, estimated net servicing income. T he amortization of MSRs is analyzed monthly and is adjusted to reflect changes in prepayment speeds, as well as other factors. MSRs are evaluated for impairment based on the fair value of those assets. Impairment is determined by stratifying MSRs into gr oupings based on predominant risk characteristics, such as interest rate and loan type. If, by individual stratum, the carrying amount of the MSRs exceeds fair value, a valuation allowance is established through a charge to earnings. The valuation allowa nce is adjusted as the fair value changes. MSRs are included in the other assets category in the accompanying consolidated balance sheet s .
Derivative Instruments Policy	Derivative Instruments In accordance with Accounting Standards Codification (“ASC”) Topic 815, Derivatives and Hedging , all derivative instruments are recorded on the consolidated balance sheet at their res pective fair values. The accounting for changes in fair value (i.e., gains or losses) of a derivative instrument depends on whether it has been designated and q ualifies as part of a hedging relationship and, if so, on the reason for holding it. If the derivative instrument is not designated as part of a hedg ing relationship , the gain or loss on the derivative instrument is recognized in earnings in the period of change. None of the derivatives utilized by the Company have been designated as a hedge.
Securities Sold Under Agreements to Repurchase Policy	Securities sold under agreements to repurchase Securities sold under agreements to repurchase generally mature less than one year from the transaction date. Securi ties sold under agreements to repurchase are reflected as a secured borrowing in the accompanying consolidated balance sheets at the amount of cash received in connection with each transaction.
Income Taxes Policy	Income Taxes Deferred tax assets and liabilities are the e xpected future tax amounts for the temporary differences between carrying amounts and tax bases of assets and liabilities, computed using enacted tax rates. A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized . The net deferred tax asset is reflected as a component of other assets in the accompanying consolidated balance sheets. Income tax expense or benefit for the year is allocated among continuing operations and other comprehensive income (loss), as applicable. The amount allocated to continuing operations is the income tax effect of the pretax income or loss from continuing op erations that occurred during the year, plus or minus income tax effects of ( 1 ) changes in certain circumstances that cause a change in judgment about the realization of deferred tax assets in future years, ( 2 ) changes in income tax laws or rates, and ( 3 ) changes in income tax status, subject to certain exceptions. The amount allocated to other comprehensive income (loss) is related solely to changes in the valuation allowance on items that are normally accounted for in other comprehensive income (loss) su ch as unrealized gains or losses on available-for-sale securities. In accordance with ASC 740, Income Taxes , a tax position is recognized as a benefit only if it is “more likely than not” that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50% likely of being realized on examination. For tax positions not meeting the “more likely than not” test, no tax benefit is record ed. It is the Company’s policy to recognize interest and penalties related to income tax matters in income tax expense. The Company and its wholly-owned subsidiaries file a consolidated income tax return.
Income Taxes, Uncertainties Policy	In accordance with ASC 740, Income Taxes , a tax position is recognized as a benefit only if it is “more likely than not” that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50% likely of being realized on examination. For tax positions not meeting the “more likely than not” test, no tax benefit is record ed. It is the Company’s policy to recognize interest and penalties related to income tax matters in income tax expense. The Company and its wholly-owned subsidiaries file a consolidated income tax return.
Fair Value Measurements Policy	Fair Value Measurements ASC 820 , Fair Value Mea surements, which defines fair value, establishes a framework for measuring fair value in U.S. generally accepted accounting principles and expands disclosures about fair value measurements. ASC 820 applies only to fair-value measurements that are already r equired or permitted by other accounting standards. The definition of fair value focuses on the exit price, i.e., the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at t he measurement date, not the entry price, i.e., the price that would be paid to acquire the asset or received to assume the liability at the measurement date. The statement emphasizes that fair value is a market-based measurement; not an entity-specific me asurement. Therefore, the fair value measurement should be determined based on the assumptions that market participants would use in pricing the asset or liability. For more information related to fair value measurements, please refer to Note 16 , Fair Value.
Subsequent Events Policy	Subsequent Events The Company has evaluated the effects of events or transactions through the date of this filing that have occurred subsequent to December 31, 2018 . The Company does not believe there are any material subsequent events that would require further recognition or disclosure .

Basic and Diluted Earnings Pe_2

Basic and Diluted Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2018
Basic and Diluted Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Year ended December 31 (Dollars in thousands, except share and per share data) 2018 2017 Basic and diluted: Net earnings $ 8,834 $ 7,846 Weighted average common shares outstanding 3,643,780 3,643,616 Net earnings per share $ 2.42 $ 2.15

Securities (Tables)

Securities (Tables)	12 Months Ended
	Dec. 31, 2018
Investments debt and equity securities [Abstract]
Available-for-sale Securities [Table Text Block]	1 year 1 to 5 5 to 10 After 10 Fair Gross Unrealized Amortized (Dollars in thousands) or less years years years Value Gains Losses Cost December 31, 2018 Agency obligations (a) $ 14,437 19,865 16,869 — 51,171 25 1,200 $ 52,346 Agency RMBS (a) — — 8,368 110,230 118,598 65 3,738 122,271 State and political subdivisions — 3,682 7,726 58,624 70,032 518 692 70,206 Total available-for-sale $ 14,437 23,547 32,963 168,854 239,801 608 5,630 $ 244,823 December 31, 2017 Agency obligations (a) $ — 29,253 23,809 — 53,062 79 904 $ 53,887 Agency RMBS (a) — — 11,201 121,871 133,072 330 1,639 $ 134,381 State and political subdivisions — 2,564 9,999 59,000 71,563 1,616 237 $ 70,184 Total available-for-sale $ — 31,817 45,009 180,871 257,697 2,025 2,780 $ 258,452 (a) Includes securities issued by U.S. government agencies or government sponsored entities.
Available-for-sale Securities, Continuous Unrealized Loss Position [Table Text Block]	Less than 12 Months 12 Months or Longer Total Fair Unrealized Fair Unrealized Fair Unrealized (Dollars in thousands) Value Losses Value Losses Value Losses December 31, 2018: Agency obligations $ 4,724 28 44,307 1,172 49,031 $ 1,200 Agency RMBS 12,325 238 99,184 3,500 111,509 3,738 State and political subdivisions 14,840 181 14,384 511 29,224 692 Total $ 31,889 447 157,875 5,183 189,764 $ 5,630 December 31, 2017: Agency obligations $ 14,381 99 20,353 805 34,734 $ 904 Agency RMBS 53,440 363 50,729 1,276 104,169 1,639 State and political subdivisions 2,009 22 10,155 215 12,164 237 Total $ 69,830 484 81,237 2,296 151,067 $ 2,780
Schedule of Realized Gain (Loss) [Table Text Block]	Realized Gains and Losses The following table presents the gross realized gains and losses on sales related to securities. Year ended December 31 (Dollars in thousands) 2018 2017 Gross realized gains $ — 51 Realized gains, net $ — 51

Loan and Allowance for Loan L_2

Loan and Allowance for Loan Losses (Tables)	12 Months Ended
	Dec. 31, 2018
Loans And Leases Receivable Disclosure [Abstract]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	December 31 (In thousands) 2018 2017 Commercial and industrial $ 63,467 $ 59,086 Construction and land development 40,222 39,607 Commercial real estate: Owner occupied 56,413 44,192 Multifamily 40,455 52,167 Other 165,028 142,674 Total commercial real estate 261,896 239,033 Residential real estate: Consumer mortgage 56,223 59,540 Investment property 46,374 47,323 Total residential real estate 102,597 106,863 Consumer installment 9,295 9,588 Total loans 477,477 454,177 Less: unearned income (569) (526) Loans, net of unearned income $ 476,908 $ 453,651
Past Due Financing Receivables [Table Text Block]	Accruing Accruing Total 30-89 Days Greater than Accruing Non- Total (In thousands) Current Past Due 90 days Loans Accrual Loans December 31, 2018: Commercial and industrial $ 63,367 100 — 63,467 — $ 63,467 Construction and land development 39,997 225 — 40,222 — 40,222 Commercial real estate: Owner occupied 56,413 — — 56,413 — 56,413 Multifamily 40,455 — — 40,455 — 40,455 Other 165,028 — — 165,028 — 165,028 Total commercial real estate 261,896 — — 261,896 — 261,896 Residential real estate: Consumer mortgage 54,446 1,599 — 56,045 178 56,223 Investment property 46,233 141 — 46,374 — 46,374 Total residential real estate 100,679 1,740 — 102,419 178 102,597 Consumer installment 9,254 41 — 9,295 — 9,295 Total $ 475,193 2,106 — 477,299 178 $ 477,477 December 31, 2017: Commercial and industrial $ 59,047 8 — 59,055 31 $ 59,086 Construction and land development 39,607 — — 39,607 — 39,607 Commercial real estate: Owner occupied 44,192 — — 44,192 — 44,192 Multifamily 52,167 — — 52,167 — 52,167 Other 140,486 — — 140,486 2,188 142,674 Total commercial real estate 236,845 — — 236,845 2,188 239,033 Residential real estate: Consumer mortgage 58,195 746 — 58,941 599 59,540 Investment property 46,871 312 — 47,183 140 47,323 Total residential real estate 105,066 1,058 — 106,124 739 106,863 Consumer installment 9,517 57 — 9,574 14 9,588 Total $ 450,082 1,123 — 451,205 2,972 $ 454,177
Allowance for Credit Losses on Financing Receivables [Table Text Block]	Year ended December 31 (In thousands) 2018 2017 Beginning balance $ 4,757 $ 4,643 Charged-off loans (168) (596) Recovery of previously charged-off loans 201 1,010 Net recoveries 33 414 Provision for loan losses — (300) Ending balance $ 4,790 $ 4,757 (in thousands) Commercial and industrial Construction and land Development Commercial Real Estate Residential Real Estate Consumer Installment Total Balance, December 31, 2016 $ 540 812 2,071 1,107 113 $ 4,643 Charge-offs (449) — — (107) (40) (596) Recoveries 461 347 — 115 87 1,010 Net recoveries 12 347 — 8 47 414 Provision 101 (425) 55 (44) 13 (300) Balance, December 31, 2017 $ 653 734 2,126 1,071 173 $ 4,757 Charge-offs (52) — (38) (26) (52) (168) Recoveries 70 — 19 79 33 201 Net recoveries 18 — (19) 53 (19) 33 Provision 107 (34) 111 (178) (6) — Balance, December 31, 2018 $ 778 700 2,218 946 148 $ 4,790
Financing Receivable Allowance for Credit Loss Additional Information [Table Text Block]	Collectively evaluated (1) Individually evaluated (2) Total Allowance Recorded Allowance Recorded Allowance Recorded for loan investment for loan investment for loan investment (In thousands) losses in loans losses in loans losses in loans December 31, 2018: Commercial and industrial $ 778 63,467 — — 778 63,467 Construction and land development 700 40,222 — — 700 40,222 Commercial real estate 2,218 261,739 — 157 2,218 261,896 Residential real estate 946 102,597 — — 946 102,597 Consumer installment 148 9,295 — — 148 9,295 Total $ 4,790 477,320 — 157 4,790 477,477 December 31, 2017: Commercial and industrial $ 622 59,055 31 31 653 59,086 Construction and land development 734 39,607 — — 734 39,607 Commercial real estate 2,115 236,322 11 2,711 2,126 239,033 Residential real estate 1,071 106,863 — — 1,071 106,863 Consumer installment 173 9,588 — — 173 9,588 Total $ 4,715 451,435 42 2,742 4,757 454,177 (1) Represents loans collectively evaluated for impairment in accordance with ASC 450-20, Loss Contingencies (formerly FAS 5), and pursuant to amendments by ASU 2010-20 regarding allowance for unimpaired loans. (2) Represents loans individually evaluated for impairment in accordance with ASC 310-30, Receivables (formerly FAS 114), and pursuant to amendments by ASU 2010-20 regarding allowance for impaired loans.
Financing Receivable Credit Quality Indicators [Table Text Block]	(In thousands) Pass Special Mention Substandard Accruing Nonaccrual Total loans December 31, 2018 Commercial and industrial $ 61,568 1,377 522 — $ 63,467 Construction and land development 39,481 — 741 — 40,222 Commercial real estate: Owner occupied 55,942 154 317 — 56,413 Multifamily 40,455 — — — 40,455 Other 163,449 1,208 371 — 165,028 Total commercial real estate 259,846 1,362 688 — 261,896 Residential real estate: Consumer mortgage 50,903 1,374 3,768 178 56,223 Investment property 45,463 173 738 — 46,374 Total residential real estate 96,366 1,547 4,506 178 102,597 Consumer installment 9,149 75 71 — 9,295 Total $ 466,410 4,361 6,528 178 $ 477,477 December 31, 2017 Commercial and industrial $ 58,842 94 119 31 $ 59,086 Construction and land development 39,049 90 468 — 39,607 Commercial real estate: Owner occupied 43,615 240 337 — 44,192 Multifamily 52,167 — — — 52,167 Other 139,695 395 396 2,188 142,674 Total commercial real estate 235,477 635 733 2,188 239,033 Residential real estate: Consumer mortgage 54,101 1,254 3,586 599 59,540 Investment property 46,463 53 667 140 47,323 Total residential real estate 100,564 1,307 4,253 739 106,863 Consumer installment 9,430 66 78 14 9,588 Total $ 443,362 2,192 5,651 2,972 $ 454,177
Impaired Financing Receivables [Table Text Block]	December 31, 2018 (In thousands) Unpaid principal balance (1) Charge-offs and payments applied (2) Recorded investment (3) Related allowance With no allowance recorded: Commercial real estate: Owner occupied $ 157 — 157 Total commercial real estate 157 — 157 Total impaired loans $ 157 — 157 $ — (1) Unpaid principal balance represents the contractual obligation due from the customer. (2) Charge-offs and payments applied represents cumulative charge-offs taken, as well as interest payments that have been applied against the outstanding principal balance. (3) Recorded investment represents the unpaid principal balance less charge-offs and payments applied; it is shown before any related allowance for loan losses. December 31, 2017 (In thousands) Unpaid principal balance (1) Charge-offs and payments applied (2) Recorded investment (3) Related allowance With no allowance recorded: Commercial real estate: Other $ 3,630 (1,094) 2,536 Total commercial real estate 3,630 (1,094) 2,536 Total $ 3,630 (1,094) 2,536 With allowance recorded: Commercial and industrial $ 52 (21) 31 $ 31 Commercial real estate: Owner occupied 175 — 175 11 Total commercial real estate 175 — 175 11 Total $ 227 (21) 206 $ 42 Total impaired loans $ 3,857 (1,115) 2,742 $ 42 (1) Unpaid principal balance represents the contractual obligation due from the customer. (2) Charge-offs and payments applied represents cumulative charge-offs taken, as well as interest payments that have been applied against the outstanding principal balance. (3) Recorded investment represents the unpaid principal balance less charge-offs and payments applied; it is shown before any related allowance for loan losses.
Schedule Of Average Impaired Financing Receivable [Table Text Block]	Year ended December 31, 2018 Year ended December 31, 2017 Average Total interest Average Total interest recorded income recorded income (In thousands) investment recognized investment recognized Impaired loans: Commercial and industrial $ 9 — $ 50 — Construction and land development — — 11 — Commercial real estate: Owner occupied 166 9 184 10 Other 1,145 — 2,096 1 Total commercial real estate 1,311 9 2,280 11 Total $ 1,320 9 $ 2,341 11
Troubled Debt Restructurings on Financing Receivables, Accrual Status [Table Text Block]	TDRs Related (In thousands) Accruing Nonaccrual Total Allowance December 31, 2018 Commercial real estate: Owner occupied $ 157 — 157 $ — Total commercial real estate 157 — 157 — Total $ 157 — 157 $ — December 31, 2017 Commercial and industrial $ — 31 31 $ 31 Commercial real estate: Owner occupied 175 — 175 11 Other 287 1,431 1,718 — Total commercial real estate 462 1,431 1,893 11 Total $ 462 1,462 1,924 $ 42
Troubled Debt Restructuring Modifications [Table Text Block]	Pre- Post- modification modification outstanding outstanding Number of recorded recorded ($ in thousands) contracts investment investment December 31, 2018 Commercial real estate: Other 2 $ 1,447 1,447 Total commercial real estate 2 1,447 1,447 Total 2 $ 1,447 1,447 December 31, 2017 Commercial and industrial 1 $ 34 34 Commercial real estate: Other 1 $ 1,275 1,266 Total commercial real estate 1 1,275 1,266 Total 2 $ 1,309 1,300
Schedule Of Debtor Troubled Debt Restructuring, Subsequent Defaults [Table Text Block]	Number of Recorded ($ in thousands) Contracts investment (1) December 31, 2018 Commercial real estate: Other 1 $ 1,259 Total commercial real estate 1 1,259 Total 1 $ 1,259 (1) Amount as of applicable month end during the respective year for which there was a payment default.

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2018
Premises and Equipment [Abstract]
Premises and Equipment [Table Text Block]	December 31 (Dollars in thousands) 2018 2017 Land $ 7,473 7,473 Buildings and improvements 10,438 10,394 Furniture, fixtures, and equipment 3,357 3,161 Total premises and equipment 21,268 21,028 Less: accumulated depreciation (7,672) (7,237) Premises and equipment, net $ 13,596 13,791

Mortgage Servicing Rights, Net

Mortgage Servicing Rights, Net (Tables)	12 Months Ended
	Dec. 31, 2018
Mortgage Servicing [Abstract]
Schedule Of Servicing Assets At Fair Value [Table Text Block]	Year ended December 31 (Dollars in thousands) 2018 2017 Beginning balance $ 1,644 1,952 Additions, net 208 224 Amortization expense (411) (533) Change in valuation allowance — 1 Ending balance $ 1,441 1,644 Valuation allowance included in MSRs, net: Beginning of period $ — 1 End of period — — Fair value of amortized MSRs: Beginning of period $ 2,528 2,678 End of period 2,697 2,528
Data And Assumptions Used In Fair Value Calculation Of MSRs [Table Text Block]	December 31 (Dollars in thousands) 2018 2017 Unpaid principal balance $ 289,981 312,318 Weighted average prepayment speed (CPR) 8.3 % 10.2 Discount rate (annual percentage) 10.0 % 10.0 Weighted average coupon interest rate 3.9 % 3.8 Weighted average remaining maturity (months) 250 253 Weighted average servicing fee (basis points) 25.0 25.0
Estimated Amortization Expense Of MSRs For Five Years [Table Text Block]	(Dollars in thousands) December 31, 2018 2019 $ 198 2020 174 2021 152 2022 131 2023 115

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2018
Deposits:
Maturities Of Certificates Of Deposit And Other Time Deposits [Table Text Block]	(Dollars in thousands) December 31, 2018 2019 $ 108,363 2020 28,888 2021 16,630 2022 20,966 2023 6,390 Total certificates of deposit and other time deposits $ 181,237

Short Term Borrowings (Tables)

Short Term Borrowings (Tables)	12 Months Ended
	Dec. 31, 2018
Short-term Debt:
Schedule of Short-term Debt [Table Text Block]	2018 2017 Weighted Weighted (Dollars in thousands) Amount Avg. Rate Amount Avg. Rate Federal funds purchased: As of December 31 $ — — $ — — Average during the year 2 2.50 % 9 2.01 % Maximum outstanding at any month-end — — Securities sold under agreements to repurchase: As of December 31 $ 2,300 0.50 % $ 2,658 0.50 % Average during the year 2,632 0.50 % 3,467 0.52 % Maximum outstanding at any month-end 3,241 4,152

Long-Term Debt (Tables)

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2018
Long-term debt:
Schedule of Long-term Debt Instruments [Table Text Block]	2018 2017 Weighted Weighted (Dollars in thousands) Amount Avg. Rate Amount Avg. Rate Subordinated debentures, due 2033 $ — — % $ 3,217 4.63 % Total long-term debt $ — — % $ 3,217 4.63 %

Other Comprehensive Income (Tab

Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2018
Other Comprehensive Income Loss [Abstract]
Schedule Of Other Comprehensive Income Loss [Table Text Block]	Pre-tax Tax benefit Net of (In thousands) amount (expense) tax amount 2018: Unrealized net holding loss on all other securities $ (4,269) 1,072 (3,197) Other comprehensive loss $ (4,269) 1,072 (3,197) 2017: Unrealized net holding gain on all other securities $ 417 (154) 263 Reclassification adjustment for net gain on securities recognized in net earnings (51) 19 (32) Other comprehensive income $ 366 (135) 231

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2018
Income Taxes
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	Year ended December 31 (Dollars in thousands) 2018 2017 Current income tax expense: Federal $ 1,685 2,782 State 431 499 Total current income tax expense 2,116 3,281 Deferred income tax expense (benefit): Federal 56 384 State 15 (28) Total deferred income tax expense 71 356 Total income tax expense $ 2,187 3,637
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	2018 2017 Percent of Percent of pre-tax pre-tax (Dollars in thousands) Amount earnings Amount earnings Earnings before income taxes $ 11,021 11,483 Income taxes at statutory rate 2,315 21.0 % 3,904 34.0 % Tax-exempt interest (515) (4.7) (813) (7.0) State income taxes, net of federal tax effect 361 3.3 325 2.8 Bank-owned life insurance (92) (0.8) (150) (1.3) Federal tax reform impact — — 370 3.2 Other 118 1.0 1 — Total income tax expense $ 2,187 19.8 % 3,637 31.7 %
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	December 31 (Dollars in thousands) 2018 2017 Deferred tax assets: Allowance for loan losses $ 1,203 1,195 Unrealized loss on securities 1,262 190 Other 135 216 Total deferred tax assets 2,600 1,601 Deferred tax liabilities: Premises and equipment 280 241 Originated mortgage servicing rights 362 413 Other 168 158 Total deferred tax liabilities 810 812 Net deferred tax asset $ 1,790 789
Schedule of Deferred Tax Asset Rollforward [Table Text Block]	Year ended December 31 (Dollars in thousands) 2018 2017 Net deferred tax asset: Balance, beginning of year $ 789 1,280 Deferred tax expense related to continuing operations (71) (356) Stockholders' equity, for accumulated other comprehensive loss (income) 1,072 (135) Balance, end of year $ 1,790 789

Derivative Instruments (Tables)

Derivative Instruments (Tables)	12 Months Ended
	Dec. 31, 2018
Derivative instruments and hedging activities disclosure abstract
Schedule of Derivative Instruments [Table Text Block]	Other Other Other noninterest Assets Liabilities income Estimated Estimated Gains (Dollars in thousands) Notional Fair Value Fair Value (Losses) December 31, 2017: Pay fixed / receive variable $ 3,617 — 52 $ 189 Pay variable / receive fixed 3,617 52 — (189) Total interest rate swap agreements $ 7,234 52 52 $ —

Commitment and Contigent Liabil

Commitment and Contigent Liabilities (Tables)	12 Months Ended
	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Schedule Of Commitments To Extend Credit [Table Text Block]	December 31 (Dollars in thousands) 2018 2017 Commitments to extend credit $ 61,889 $ 57,014 Standby letters of credit 7,026 7,390

Fair Value (Tables)

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Quoted Prices in Significant Active Markets Other Significant for Observable Unobservable Identical Assets Inputs Inputs (Dollars in thousands) Amount (Level 1) (Level 2) (Level 3) December 31, 2018: Securities available-for-sale: Agency obligations $ 51,171 — 51,171 — Agency RMBS 118,598 — 118,598 — State and political subdivisions 70,032 — 70,032 — Total securities available-for-sale 239,801 — 239,801 — Total assets at fair value $ 239,801 — 239,801 — December 31, 2017: Securities available-for-sale: Agency obligations $ 53,062 — 53,062 — Agency RMBS 133,072 — 133,072 — State and political subdivisions 71,563 — 71,563 — Total securities available-for-sale 257,697 — 257,697 — Other assets (1) 52 — 52 — Total assets at fair value $ 257,749 — 257,749 — Other liabilities (1) 52 — 52 — Total liabilities at fair value $ 52 — 52 — (1) Represents the fair value of interest rate swap agreements.
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Table Text Block]	Quoted Prices in Active Markets Other Significant for Observable Unobservable Identical Assets Inputs Inputs (Dollars in thousands) Amount (Level 1) (Level 2) (Level 3) December 31, 2018: Loans held for sale $ 383 — 383 — Loans, net (1) 157 — — 157 Other real estate owned 172 — — 172 Other assets (2) 1,441 — — 1,441 Total assets at fair value $ 2,153 — 383 1,770 December 31, 2017: Loans held for sale $ 1,922 — 1,922 — Loans, net (1) 2,700 — — 2,700 Other assets (2) 1,644 — — 1,644 Total assets at fair value $ 6,266 — 1,922 4,344 (1) Loans considered impaired under ASC 310-10-35 Receivables. This amount reflects the recorded investment in impaired loans, net of any related allowance for loan losses. (2) Represents MSRs, net, carried at lower of cost or estimated fair value.
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]	Weighted Carrying Average (Dollars in thousands) Amount Valuation Technique Significant Unobservable Input of Input Nonrecurring: Impaired loans $ 157 Appraisal Appraisal discounts (%) 10.0 % Other real estate owned 172 Appraisal Appraisal discounts (%) 10.0 % Mortgage servicing rights, net 1,441 Discounted cash flow Prepayment speed or CPR (%) 8.3 % Discount rate (%) 10.0 %
Financial Instruments [Table Text Block]	Fair Value Hierarchy Carrying Estimated Level 1 Level 2 Level 3 (Dollars in thousands) amount fair value inputs inputs Inputs December 31, 2018: Financial Assets: Loans, net (1) $ 472,118 $ 465,456 $ — $ — $ 465,456 Loans held for sale 383 397 — 397 — Financial Liabilities: Time Deposits $ 181,237 $ 181,168 $ — $ 181,168 $ — December 31, 2017: Financial Assets: Loans, net (1) $ 448,894 $ 447,468 $ — $ — $ 447,468 Loans held for sale 1,922 1,950 — 1,950 — Financial Liabilities: Time Deposits $ 188,071 $ 185,564 $ — $ 185,564 $ — Long-term debt 3,217 3,217 — 3,217 — (1) Represents loans, net of unearned income and the allowance for loan losses. In accordance with the prospective adoption of ASU No. 2016-01, the fair value of loans as of December 31, 2018 was measured using an exit price notion. The fair value of loans as of December 31, 2017 was measured using an entry price notion.

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2018
Related Party Transactions [Abstract]
Schedule of Related Party Transactions [Table Text Block]	(Dollars in thousands) Amount Loans outstanding at December 31, 2017 $ 3,068 New loans/advances 5,871 Repayments (732) Loans outstanding at December 31, 2018 $ 8,207

Regulatory Restrictions and C_2

Regulatory Restrictions and Capital Ratios (Tables)	12 Months Ended
	Dec. 31, 2018
Regulatory Capital Requirements [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]	Minimum for capital Minimum to be Actual adequacy purposes well capitalized (Dollars in thousands) Amount Ratio Amount Ratio Amount Ratio At December 31, 2018: Tier 1 Leverage Capital AuburnBank $ 91,719 11.33 % $ 32,368 4.00 % $ 40,461 5.00 % Common Equity Tier 1 Capital AuburnBank $ 91,719 16.49 % $ 25,031 4.50 % $ 36,156 6.50 % Tier 1 Risk-Based Capital AuburnBank $ 91,719 16.49 % $ 33,375 6.00 % $ 44,500 8.00 % Total Risk-Based Capital AuburnBank $ 96,661 17.38 % $ 44,500 8.00 % $ 55,625 10.00 % At December 31, 2017: Tier 1 Leverage Capital Auburn National Bancorporation $ 90,382 10.95 % $ 33,012 4.00 % N/A N/A AuburnBank 89,217 10.82 32,978 4.00 $ 41,222 5.00 % Common Equity Tier 1 Capital Auburn National Bancorporation $ 87,382 16.42 % $ 23,949 4.50 % N/A N/A AuburnBank 89,217 16.74 23,987 4.50 $ 34,648 6.50 % Tier 1 Risk-Based Capital Auburn National Bancorporation $ 90,382 16.98 % $ 31,932 6.00 % N/A N/A AuburnBank 89,217 16.74 31,983 6.00 $ 42,644 8.00 % Total Risk-Based Capital Auburn National Bancorporation $ 95,300 17.91 % $ 42,576 8.00 % N/A N/A AuburnBank 94,135 17.66 42,644 8.00 $ 53,305 10.00 %

Auburn National Bancorporatio_2

Auburn National Bancorporation - Parent Company (Tables)	12 Months Ended
	Dec. 31, 2018
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Schedule of Condensed Balance Sheet [Table Text Block]	CONDENSED BALANCE SHEETS December 31 (Dollars in thousands) 2018 2017 Assets: Cash and due from banks $ 1,941 1,170 Investment in bank subsidiary 87,956 88,741 Other assets 626 1,760 Total assets $ 90,523 91,671 Liabilities: Accrued expenses and other liabilities $ 1,468 1,548 Long-term debt — 3,217 Total liabilities 1,468 4,765 Stockholders' equity 89,055 86,906 Total liabilities and stockholders' equity $ 90,523 91,671
Schedule of Condensed Income Statement [Table Text Block]	CONDENSED STATEMENTS OF EARNINGS Year ended December 31 (Dollars in thousands) 2018 2017 Income: Dividends from bank subsidiary $ 6,533 3,471 Noninterest income 149 141 Total income 6,682 3,612 Expense: Interest expense 51 125 Noninterest expense 237 225 Total expense 288 350 Earnings before income tax benefit and equity in undistributed earnings of bank subsidiary 6,394 3,262 Income tax benefit (28) (58) Earnings before equity in undistributed earnings of bank subsidiary 6,422 3,320 Equity in undistributed earnings of bank subsidiary 2,412 4,526 Net earnings $ 8,834 7,846
Schedule of Condensed Cash Flow Statement [Table Text Block]	CONDENSED STATEMENTS OF CASH FLOWS Year ended December 31 (Dollars in thousands) 2018 2017 Cash flows from operating activities: Net earnings $ 8,834 7,846 Adjustments to reconcile net earnings to net cash provided by operating activities: Net decrease (increase) in other assets 1,134 (879) Net decrease in other liabilities (70) (109) Equity in undistributed earnings of bank subsidiary (2,412) (4,526) Net cash provided by operating activities 7,486 2,332 Cash flows from financing activities: Repayments or retirement of long-term debt (3,217) — Dividends paid (3,498) (3,352) Net cash used in financing activities (6,715) (3,352) Net change in cash and cash equivalents 771 (1,020) Cash and cash equivalents at beginning of period 1,170 2,190 Cash and cash equivalents at end of period $ 1,941 1,170

Basic and Diluted Earnings Pe_3

Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Basic and Diluted Earnings Per Share [Abstract]
Net earnings	$ 8,834	$ 7,846
Basic and diluted weighted average shares outstanding	3,643,780	3,643,616
Basic and diluted earnings per share	$ 2.42	$ 2.15

Variable Interest Entities (Det

Variable Interest Entities (Details) $ in Thousands	Dec. 31, 2018USD ($)
Liability Recognized [Member]
Variable Interest Entities [Line Items]
Trust Preferred Issuance, Liability Recognized	$ 3,217

Security Types (Details)

Security Types (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	$ 14,437	$ 0
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	23,547	31,817
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	32,963	45,009
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	168,854	180,871
Available-for-sale Securities, Fair Value, Total	239,801	257,697
Available For Sale Securities, Gross Unrealized Gains	608	2,025
Available For Sale Securities, Gross Unrealized Losses	5,630	2,780
Available-for-sale Securities, Amortized Cost Basis	244,823	258,452
US Government and Government Agencies and Authorities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	14,437	0
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	19,865	29,253
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	16,869	23,809
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	0	0
Available-for-sale Securities, Fair Value, Total	51,171	53,062
Available For Sale Securities, Gross Unrealized Gains	25	79
Available For Sale Securities, Gross Unrealized Losses	1,200	904
Available-for-sale Securities, Amortized Cost Basis	52,346	53,887
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	0	0
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	0	0
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	8,368	11,201
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	110,230	121,871
Available-for-sale Securities, Fair Value, Total	118,598	133,072
Available For Sale Securities, Gross Unrealized Gains	65	330
Available For Sale Securities, Gross Unrealized Losses	3,738	1,639
Available-for-sale Securities, Amortized Cost Basis	122,271	134,381
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	0	0
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	3,682	2,564
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	7,726	9,999
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	58,624	59,000
Available-for-sale Securities, Fair Value, Total	70,032	71,563
Available For Sale Securities, Gross Unrealized Gains	518	1,616
Available For Sale Securities, Gross Unrealized Losses	692	237
Available-for-sale Securities, Amortized Cost Basis	$ 70,206	$ 70,184

Securities Continuous Unrealize

Securities Continuous Unrealized Loss (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 31,889	$ 69,830
Available-for-sale Securities Continuous Unrealized Loss Position Less Than 12 Months Accumulated Loss	447	484
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	157,875	81,237
Available-for-sale Securities Continuous Unrealized Loss Position 12 Months Or Longer Accumulated Loss	5,183	2,296
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	189,764	151,067
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Losses	5,630	2,780
US Government and Government Agencies and Authorities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	4,724	14,381
Available-for-sale Securities Continuous Unrealized Loss Position Less Than 12 Months Accumulated Loss	28	99
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	44,307	20,353
Available-for-sale Securities Continuous Unrealized Loss Position 12 Months Or Longer Accumulated Loss	1,172	805
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	49,031	34,734
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Losses	1,200	904
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	12,325	53,440
Available-for-sale Securities Continuous Unrealized Loss Position Less Than 12 Months Accumulated Loss	238	363
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	99,184	50,729
Available-for-sale Securities Continuous Unrealized Loss Position 12 Months Or Longer Accumulated Loss	3,500	1,276
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	111,509	104,169
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Losses	3,738	1,639
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	14,840	2,009
Available-for-sale Securities Continuous Unrealized Loss Position Less Than 12 Months Accumulated Loss	181	22
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	14,384	10,155
Available-for-sale Securities Continuous Unrealized Loss Position 12 Months Or Longer Accumulated Loss	511	215
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	29,224	12,164
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Losses	$ 692	$ 237

Securities Gross Realized Gain

Securities Gross Realized Gain Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract]
Available-for-sale Securities, Gross Realized Gains	$ 0	$ 51
Available-for-sale Securities, Gross Realized Losses	0	0
Available-for-sale Securities, Gross Realized Gain (Loss), Net	$ 0	$ 51

Securities Textuals (Details)

Securities Textuals (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Securities (Textuals) [Abstract]
Available-for-sale Securities Pledged as Collateral	$ 149.4	$ 137.2
Cost-method Investments, Aggregate Carrying Amount	$ 1.4	$ 1.4

Loans (Details)

Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Loans And Leases Receivable Disclosure [Abstract]
Commercial and Industrial Loans	$ 63,467	$ 59,086
Construction And Land Development Loans	40,222	39,607
Commericial Real Estate Loans [Abstract]
Commercial Real Estate Owner Occupied Loans	56,413	44,192
Commercial Real Estate Multifamily	40,455	52,167
Commerical Real Estate Other Loans	165,028	142,674
Total Commercial Real Estate Loans	261,896	239,033
Residential Real Estate Loans [Abstract]
Consumer Mortgage Loans	56,223	59,540
Residential Real Estate Investment Property Loans	46,374	47,323
Total Residential Real Estate Loans	102,597	106,863
Consumer Installment And Revolving Loans	9,295	9,588
Loans and Leases Receivable, Gross, Carrying Amount	477,477	454,177
Loans and Leases Receivable Deferred Income	(569)	(526)
Loans, net of unearned income	$ 476,908	$ 453,651

Loans Past Due Analysis (Detail

Loans Past Due Analysis (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	$ 475,193	$ 450,082
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	2,106	1,123
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	477,299	451,205
Financing Receivable, Recorded Investment, Nonaccrual Status	178	2,972
Loans and Leases Receivable, Gross, Carrying Amount	477,477	454,177
Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	63,367	59,047
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	100	8
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	63,467	59,055
Financing Receivable, Recorded Investment, Nonaccrual Status	0	31
Loans and Leases Receivable, Gross, Carrying Amount	63,467	59,086
Construction And Land Development Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	39,997	39,607
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	225	0
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	40,222	39,607
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	40,222	39,607
Commercial Real Estate Owner Occupied Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	56,413	44,192
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	56,413	44,192
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	56,413	44,192
Commercial Real Estate Multifamily [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	40,455	52,167
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	40,455	52,167
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	40,455	52,167
Commercial Real Estate Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	165,028	140,486
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	165,028	140,486
Financing Receivable, Recorded Investment, Nonaccrual Status	0	2,188
Loans and Leases Receivable, Gross, Carrying Amount	165,028	142,674
Commercial Real Estate Loans, Total [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	261,896	236,845
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	261,896	236,845
Financing Receivable, Recorded Investment, Nonaccrual Status	0	2,188
Loans and Leases Receivable, Gross, Carrying Amount	261,896	239,033
Residential Real Estate Consumer Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	54,446	58,195
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	1,599	746
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	56,045	58,941
Financing Receivable, Recorded Investment, Nonaccrual Status	178	599
Loans and Leases Receivable, Gross, Carrying Amount	56,223	59,540
Residential Real Estate Investment Property Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	46,233	46,871
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	141	312
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	46,374	47,183
Financing Receivable, Recorded Investment, Nonaccrual Status	0	140
Loans and Leases Receivable, Gross, Carrying Amount	46,374	47,323
Residential Real Estate Loans, Total [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	100,679	105,066
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	1,740	1,058
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	102,419	106,124
Financing Receivable, Recorded Investment, Nonaccrual Status	178	739
Loans and Leases Receivable, Gross, Carrying Amount	102,597	106,863
Consumer Installment and Revolving Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	9,254	9,517
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	41	57
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	9,295	9,574
Financing Receivable, Recorded Investment, Nonaccrual Status	0	14
Loans and Leases Receivable, Gross, Carrying Amount	$ 9,295	$ 9,588

Allowance for Loan Loss (Detail

Allowance for Loan Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	$ 4,757	$ 4,643
Financing Receivable, Allowance for Credit Losses, Charge-offs	(168)	(596)
Financing Receivable, Allowance for Credit Losses, Recoveries	201	1,010
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	33	414
Provision for loan losses	0	(300)
Financing Receivable, Allowance for Credit Losses	4,790	4,757
Commercial and Industrial Loans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	653	540
Financing Receivable, Allowance for Credit Losses, Charge-offs	(52)	(449)
Financing Receivable, Allowance for Credit Losses, Recoveries	70	461
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	18	12
Provision for loan losses	107	101
Financing Receivable, Allowance for Credit Losses	778	653
Construction And Land Development Loans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	734	812
Financing Receivable, Allowance for Credit Losses, Charge-offs	0	0
Financing Receivable, Allowance for Credit Losses, Recoveries	0	347
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	0	347
Provision for loan losses	(34)	(425)
Financing Receivable, Allowance for Credit Losses	700	734
Commercial Real Estate Loans, Total [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	2,126	2,071
Financing Receivable, Allowance for Credit Losses, Charge-offs	(38)	0
Financing Receivable, Allowance for Credit Losses, Recoveries	19	0
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	(19)	0
Provision for loan losses	111	55
Financing Receivable, Allowance for Credit Losses	2,218	2,126
Residential Real Estate Loans, Total [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	1,071	1,107
Financing Receivable, Allowance for Credit Losses, Charge-offs	(26)	(107)
Financing Receivable, Allowance for Credit Losses, Recoveries	79	115
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	53	8
Provision for loan losses	(178)	(44)
Financing Receivable, Allowance for Credit Losses	946	1,071
Consumer Installment and Revolving Loans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	173	113
Financing Receivable, Allowance for Credit Losses, Charge-offs	(52)	(40)
Financing Receivable, Allowance for Credit Losses, Recoveries	33	87
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	(19)	47
Provision for loan losses	(6)	13
Financing Receivable, Allowance for Credit Losses	$ 148	$ 173

Allowance For Loan Loss Additio

Allowance For Loan Loss Additional Information (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable Allowance For Credit Loss Additional Information [Line Items]
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	$ 4,790	$ 4,715
Financing Receivable, Collectively Evaluated for Impairment	477,320	451,435
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0	42
Financing Receivable, Individually Evaluated for Impairment	157	2,742
Allowance for loan losses	4,790	4,757
Loans and Leases Receivable, Gross, Carrying Amount	477,477	454,177
Commercial and Industrial Loans [Member]
Financing Receivable Allowance For Credit Loss Additional Information [Line Items]
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	778	622
Financing Receivable, Collectively Evaluated for Impairment	63,467	59,055
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0	31
Financing Receivable, Individually Evaluated for Impairment	0	31
Allowance for loan losses	778	653
Loans and Leases Receivable, Gross, Carrying Amount	63,467	59,086
Construction And Land Development Loans [Member]
Financing Receivable Allowance For Credit Loss Additional Information [Line Items]
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	700	734
Financing Receivable, Collectively Evaluated for Impairment	40,222	39,607
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0	0
Financing Receivable, Individually Evaluated for Impairment	0	0
Allowance for loan losses	700	734
Loans and Leases Receivable, Gross, Carrying Amount	40,222	39,607
Commercial Real Estate Loans, Total [Member]
Financing Receivable Allowance For Credit Loss Additional Information [Line Items]
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	2,218	2,115
Financing Receivable, Collectively Evaluated for Impairment	261,739	236,322
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0	11
Financing Receivable, Individually Evaluated for Impairment	157	2,711
Allowance for loan losses	2,218	2,126
Loans and Leases Receivable, Gross, Carrying Amount	261,896	239,033
Residential Real Estate Loans, Total [Member]
Financing Receivable Allowance For Credit Loss Additional Information [Line Items]
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	946	1,071
Financing Receivable, Collectively Evaluated for Impairment	102,597	106,863
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0	0
Financing Receivable, Individually Evaluated for Impairment	0	0
Allowance for loan losses	946	1,071
Loans and Leases Receivable, Gross, Carrying Amount	102,597	106,863
Consumer Installment and Revolving Loans [Member]
Financing Receivable Allowance For Credit Loss Additional Information [Line Items]
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	148	173
Financing Receivable, Collectively Evaluated for Impairment	9,295	9,588
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0	0
Financing Receivable, Individually Evaluated for Impairment	0	0
Allowance for loan losses	148	173
Loans and Leases Receivable, Gross, Carrying Amount	$ 9,295	$ 9,588

Loan Credit Quality Analysis (D

Loan Credit Quality Analysis (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	$ 466,410	$ 443,362
Financing Receivable, Recorded Investment, Special Mention	4,361	2,192
Financing Receivable Recorded Investment, Substandard Accruing	6,528	5,651
Financing Receivable, Recorded Investment, Nonaccrual Status	178	2,972
Loans and Leases Receivable, Gross, Carrying Amount	477,477	454,177
Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	61,568	58,842
Financing Receivable, Recorded Investment, Special Mention	1,377	94
Financing Receivable Recorded Investment, Substandard Accruing	522	119
Financing Receivable, Recorded Investment, Nonaccrual Status	0	31
Loans and Leases Receivable, Gross, Carrying Amount	63,467	59,086
Construction And Land Development Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	39,481	39,049
Financing Receivable, Recorded Investment, Special Mention	0	90
Financing Receivable Recorded Investment, Substandard Accruing	741	468
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	40,222	39,607
Commercial Real Estate Owner Occupied Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	55,942	43,615
Financing Receivable, Recorded Investment, Special Mention	154	240
Financing Receivable Recorded Investment, Substandard Accruing	317	337
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	56,413	44,192
Commercial Real Estate Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	40,455	52,167
Financing Receivable, Recorded Investment, Special Mention	0	0
Financing Receivable Recorded Investment, Substandard Accruing	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	40,455	52,167
Commercial Real Estate Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	163,449	139,695
Financing Receivable, Recorded Investment, Special Mention	1,208	395
Financing Receivable Recorded Investment, Substandard Accruing	371	396
Financing Receivable, Recorded Investment, Nonaccrual Status	0	2,188
Loans and Leases Receivable, Gross, Carrying Amount	165,028	142,674
Commercial Real Estate Loans, Total [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	259,846	235,477
Financing Receivable, Recorded Investment, Special Mention	1,362	635
Financing Receivable Recorded Investment, Substandard Accruing	688	733
Financing Receivable, Recorded Investment, Nonaccrual Status	0	2,188
Loans and Leases Receivable, Gross, Carrying Amount	261,896	239,033
Residential Real Estate Consumer Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	50,903	54,101
Financing Receivable, Recorded Investment, Special Mention	1,374	1,254
Financing Receivable Recorded Investment, Substandard Accruing	3,768	3,586
Financing Receivable, Recorded Investment, Nonaccrual Status	178	599
Loans and Leases Receivable, Gross, Carrying Amount	56,223	59,540
Residential Real Estate Investment Property Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	45,463	46,463
Financing Receivable, Recorded Investment, Special Mention	173	53
Financing Receivable Recorded Investment, Substandard Accruing	738	667
Financing Receivable, Recorded Investment, Nonaccrual Status	0	140
Loans and Leases Receivable, Gross, Carrying Amount	46,374	47,323
Residential Real Estate Loans, Total [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	96,366	100,564
Financing Receivable, Recorded Investment, Special Mention	1,547	1,307
Financing Receivable Recorded Investment, Substandard Accruing	4,506	4,253
Financing Receivable, Recorded Investment, Nonaccrual Status	178	739
Loans and Leases Receivable, Gross, Carrying Amount	102,597	106,863
Consumer Installment and Revolving Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	9,149	9,430
Financing Receivable, Recorded Investment, Special Mention	75	66
Financing Receivable Recorded Investment, Substandard Accruing	71	78
Financing Receivable, Recorded Investment, Nonaccrual Status	0	14
Loans and Leases Receivable, Gross, Carrying Amount	$ 9,295	$ 9,588

Impaired Loans (Details)

Impaired Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	$ 157	$ 3,630
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied	0	(1,094)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	157	2,536
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0	227
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied	0	(21)
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	206
Impaired Financing Receivable, With Related Allowance, Related Allowance	0	42
Impaired Financing Receivable, Unpaid Principal Balance	157	3,857
Impaired Financing Receivable, Charge-off And Payments Applied	0	(1,115)
Impaired Financing Receivable, Recorded Investment	157	2,742
Impaired Financing Receivable, Related Allowance	0	42
Commercial and Industrial Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied		0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0
Impaired Financing Receivable, With Related Allowance, Related Allowance	0
Construction And Land Development Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied		0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		0
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied	0
Commercial Real Estate Owner Occupied Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0	175
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied	0	0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	175
Impaired Financing Receivable, With Related Allowance, Related Allowance	0	11
Commercial Real Estate Other Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	3,630
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied	0	(1,094)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	0	2,536
Commercial Real Estate Loans, Total [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	157	3,630
Impaired Financing Receivable, with No Related Allowance, Charge-off And Payments Applied	0	(1,094)
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	157	2,536
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0	175
Impaired Financing Receivable, with Related Allowance, Charge-off And Payments Applied	0	0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	175
Impaired Financing Receivable, With Related Allowance, Related Allowance	$ 0	$ 11

Impaired Loans Averages (Detail

Impaired Loans Averages (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Impaired Financing Receivable, Average Recorded Investment [Line Items]
Impaired Financing Receivable, Average Recorded Investment	$ 1,320	$ 2,341
Impaired Financing Receivable, Interest Income, Accrual Method	9	11
Commercial and Industrial Loans [Member]
Impaired Financing Receivable, Average Recorded Investment [Line Items]
Impaired Financing Receivable, Average Recorded Investment	9	50
Impaired Financing Receivable, Interest Income, Accrual Method	0	0
Construction And Land Development Loans [Member]
Impaired Financing Receivable, Average Recorded Investment [Line Items]
Impaired Financing Receivable, Average Recorded Investment	0	11
Impaired Financing Receivable, Interest Income, Accrual Method	0	0
Commercial Real Estate Owner Occupied Loans [Member]
Impaired Financing Receivable, Average Recorded Investment [Line Items]
Impaired Financing Receivable, Average Recorded Investment	166	184
Impaired Financing Receivable, Interest Income, Accrual Method	9	10
Commercial Real Estate Other Loans [Member]
Impaired Financing Receivable, Average Recorded Investment [Line Items]
Impaired Financing Receivable, Average Recorded Investment	1,145	2,096
Impaired Financing Receivable, Interest Income, Accrual Method	0	1
Commercial Real Estate Loans, Total [Member]
Impaired Financing Receivable, Average Recorded Investment [Line Items]
Impaired Financing Receivable, Average Recorded Investment	1,311	2,280
Impaired Financing Receivable, Interest Income, Accrual Method	$ 9	$ 11

Troubled Debt Restructuring (De

Troubled Debt Restructuring (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	$ 157	$ 462
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	0	1,462
Impaired Financing Receivable, Trouble Debt Structuring, Total	157	1,924
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	0	42
Commercial and Industrial Loans [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	0	0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	0	31
Impaired Financing Receivable, Trouble Debt Structuring, Total	0	31
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	0	31
Construction And Land Development Loans [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing		0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual		0
Impaired Financing Receivable, Trouble Debt Structuring, Total		0
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses		0
Commercial Real Estate Owner Occupied Loans [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	157	175
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	0	0
Impaired Financing Receivable, Trouble Debt Structuring, Total	157	175
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	0	11
Commercial Real Estate Other Loans [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	0	287
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	0	1,431
Impaired Financing Receivable, Trouble Debt Structuring, Total	0	1,718
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	0	0
Commercial Real Estate Loans, Total [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	157	462
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	0	1,431
Impaired Financing Receivable, Trouble Debt Structuring, Total	157	1,893
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	$ 0	$ 11

Troubled Debt Restructing Modif

Troubled Debt Restructing Modifications (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modification, Number of Contracts	2	2
Financing Receivable, Modification, Pre-Modification Recorded Investment	$ 1,447	$ 1,309
Financing Receivable, Modifications, Post-Modifications Recorded Investment	$ 1,447	$ 1,300
Commercial and Industrial Loans [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modification, Number of Contracts		1
Financing Receivable, Modification, Pre-Modification Recorded Investment		$ 34
Financing Receivable, Modifications, Post-Modifications Recorded Investment		$ 34
Commercial Real Estate Other Loans [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modification, Number of Contracts	2	1
Financing Receivable, Modification, Pre-Modification Recorded Investment	$ 1,447	$ 1,275
Financing Receivable, Modifications, Post-Modifications Recorded Investment	$ 1,447	$ 1,266
Commercial Real Estate Loans, Total [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modification, Number of Contracts	2	1
Financing Receivable, Modification, Pre-Modification Recorded Investment	$ 1,447	$ 1,275
Financing Receivable, Modifications, Post-Modifications Recorded Investment	$ 1,447	$ 1,266

Troubled Debt Restructing Defau

Troubled Debt Restructing Defaults (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)
Financing Receivable, Modifications, Subsequent Default [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 1,259
Commercial Real Estate Other Loans [Member]
Financing Receivable, Modifications, Subsequent Default [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 1,259
Commercial Real Estate Loans, Total [Member]
Financing Receivable, Modifications, Subsequent Default [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 1,259

Loans Textuals (Details)

Loans Textuals (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Loan and Lease Disclosure (Textuals) [Abstract]
Percentage Of Loans Secured By Real Estate	84.90%
LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	$ 12	$ 140

Premises and Equipment (Details

Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment, Net, by Type [Abstract]
Land	$ 7,473	$ 7,473
Buildings and Improvements	10,438	10,394
Furniture, Fixtures, And Equipment	3,357	3,161
Total Premises and Equipment	21,268	21,028
Less: Accumulated Depreciation and Equipment	(7,672)	(7,237)
Premises and equipment, net	$ 13,596	$ 13,791

Property, Plant Equipment Textu

Property, Plant Equipment Textuals (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment, Net, by Type [Abstract]
Depreciation Expense	$ 435	$ 428

Mortgage Servicing Rights, Ne_2

Mortgage Servicing Rights, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Servicing Asset at Amortized Value, Balance [Roll Forward]
Servicing Asset at Amortized Cost, Beginning	$ 1,644	$ 1,952
Servicing Asset at Amortized Value, Additions	208	224
Servicing Asset at Amortized Value, Amortization	(411)	(533)
Servicing Asset at Amortized Value, Valuation Allowance	0	1
Servicing Asset at Amortized Cost, Ending	1,441	1,644
Valuation Allowance for Impairment of Recognized Servicing Assets, Balance [Abstract]
Valuation Allowance for Impairment of Recognized Servicing Assets, Beginning Balance	0	1
Valuation Allowance for Impairment of Recognized Servicing Assets, Ending Balance	0	0
Servicing Asset at Amortized Value, Fair Value [Abstract]
Servicing Asset at Amortized Value, Fair Value, Beginning	2,528	2,678
Servicing Asset at Amortized Value, Fair Value, Ending	$ 2,697	$ 2,528

Mortgage Servicing Rights, ne_3

Mortgage Servicing Rights, net Data and Assumptions for Fair Value Calculation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value [Abstract]
Servicing Assets And Servicing Liabilities At Fair Value, Assumptions Used To Estimate Fair Value, Unpaid Principal Balance	$ 289,981	$ 312,318
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Prepayment Speed	8.30%	10.20%
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate	10.00%	10.00%
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Weighted Average Coupon Interest Rate	3.90%	3.80%
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Weighted Average Life	20 years 10 months	21 years 1 month
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Weighted Average Servicing Fee	0.25%	0.25%

Mortgage Servicing Rights, ne_4

Mortgage Servicing Rights, net Estimated Amortization Expense For Future Periods (Details) $ in Thousands	Dec. 31, 2018USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	$ 198
Finite-Lived Intangible Assets, Amortization Expense, Year Two	174
Finite-Lived Intangible Assets, Amortization Expense, Year Three	152
Finite-Lived Intangible Assets, Amortization Expense, Year Four	131
Finite-Lived Intangible Assets, Amortization Expense, Year Five	$ 115

Mortgage Servicing Rights Textu

Mortgage Servicing Rights Textuals (Details)	Dec. 31, 2018
Mortgage Servicing [Abstract]
Weighted Average Amortization In Years	6.7

Deposits Time Deposit Maturitie

Deposits Time Deposit Maturities (Details) $ in Thousands	Dec. 31, 2018USD ($)
Time Deposits, Fiscal Year Maturity [Abstract]
Time Deposit Maturities, Next Twelve Months	$ 108,363
Time Deposit Maturities, Year Two	28,888
Time Deposit Maturities, Year Three	16,630
Time Deposit Maturities, Year Four	20,966
Time Deposit Maturities, Year Five	6,390
Time Deposit Maturities, after Year Five	0
Time Deposits, Total	$ 181,237

Deposits Textuals (Details)

Deposits Textuals (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Time Deposits [Abstract]
Time Deposits, $250,000 or More	$ 59.4	$ 55.2

Short-term Borrowings (Details)

Short-term Borrowings (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Federal Funds Purchased [Member]
Short-term Debt [Line Items]
Short-term Debt	$ 0	$ 0
Short-term Debt, Weighted Average Interest Rate	0.00%	0.00%
Short-term Debt, Average Outstanding Amount	$ 2	$ 9
Short-term Debt, Weighted Average Interest Rate During Year	2.50%	2.01%
Short-term Debt, Maximum Month-end Outstanding Amount	$ 0	$ 0
Securities Sold under Agreements to Repurchase [Member]
Short-term Debt [Line Items]
Short-term Debt	$ 2,300	$ 2,658
Short-term Debt, Weighted Average Interest Rate	0.50%	0.50%
Short-term Debt, Average Outstanding Amount	$ 2,632	$ 3,467
Short-term Debt, Weighted Average Interest Rate During Year	0.50%	0.52%
Short-term Debt, Maximum Month-end Outstanding Amount	$ 3,241	$ 4,152

Short-term Borrowings Textuals

Short-term Borrowings Textuals (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Short-term Debt:
Federal Funds, Borrowing Capacity	$ 41
Available For Sale Securities Pledged As Collateral For Securities Sold Under Agreements to Repurchase	$ 5.6	$ 5.8

Long-term Debt (Details)

Long-term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 0	$ 3,217
Long-term Debt, Weighted Average Interest Rate	0.00%	4.63%
Subordinated Debentures, due 2033
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 0	$ 3,217
Long-term Debt, Weighted Average Interest Rate	0.00%	4.63%

Long-term Debt Maturities (Deta

Long-term Debt Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Maturities of Long-term Debt [Line Items]
Long-term Debt, Total		$ 3,217
Subordinated Debentures, due 2033
Maturities of Long-term Debt [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	$ 0
Long-term Debt, Maturities, Repayments of Principal in Year Two	0
Long-term Debt, Maturities, Repayments of Principal in Year Three	0
Long-term Debt, Maturities, Repayments of Principal in Year Four	0
Long-term Debt, Maturities, Repayments of Principal in Year Five	0
Long-term Debt, Maturities, Repayments of Principal after Year Five	0
Long-term Debt, Total	$ 0

Other Comprehensive Income (Det

Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Pre-Tax Amount [Member]
Schedule Of Other Comprehesive Income [Line Items]
Unrealized Net Holding Gain (Loss) On All Other Securitiies	$ (4,269)	$ 417
Reclassification adjustment for loss (gain) on securities recognized in earnings	0	(51)
Other Comprehensive Income (Loss)	(4,269)	366
Tax Benefit (Expense) [Member]
Schedule Of Other Comprehesive Income [Line Items]
Unrealized Net Holding Gain (Loss) On All Other Securitiies	1,072	(154)
Reclassification adjustment for loss (gain) on securities recognized in earnings	0	19
Other Comprehensive Income (Loss)	1,072	(135)
Net Of Tax Amount [Member]
Schedule Of Other Comprehesive Income [Line Items]
Unrealized Net Holding Gain (Loss) On All Other Securitiies	(3,197)	263
Reclassification adjustment for loss (gain) on securities recognized in earnings	0	(32)
Other Comprehensive Income (Loss)	$ (3,197)	$ 231

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current Federal Tax Expense (Benefit)	$ 1,685	$ 2,782
Current State and Local Tax Expense (Benefit)	431	499
Current Income Tax Expense (Benefit), Total	2,116	3,281
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Deferred Federal Income Tax Expense (Benefit)	56	384
Deferred State and Local Income Tax Expense (Benefit)	15	(28)
Deferred Income Tax Expense (Benefit), Total	71	356
Income Tax Expense (Benefit), Continuing Operations, Total	$ 2,187	$ 3,637

Income Tax Expense Reconciliati

Income Tax Expense Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Earnings before income taxes	$ 11,021	$ 11,483
Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate	$ 2,315	$ 3,904
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	21.00%	34.00%
Income Tax Reconciliation, Tax Exempt Income	$ (515)	$ (813)
Effective Income Tax Rate Reconciliation, Tax Exempt Income	(4.70%)	(7.00%)
Income Tax Reconciliation, State and Local Income Taxes	$ 361	$ 325
Effective Income Tax Rate Reconciliation, State and Local Income Taxes	3.30%	2.80%
Income Tax Reconciliation, Bank Owned Life Insurance	$ (92)	$ (150)
Effective Income Tax Rate Reconciliation, Bank Owned Life Insurance	(0.80%)	(1.30%)
Income Tax Reconciliation, Federal Tax Reform Impact		$ 370
Effective Income Tax Rate Reconciliation, Federal Tax Reform Impact		3.20%
Income Tax Reconciliation, Other Adjustments	$ 118	$ 1
Effective Income Tax Rate Reconciliation, Other Adjustments	1.00%	0.00%
Income Tax Expense (Benefit), Continuing Operations, Total	$ 2,187	$ 3,637
Effective Income Tax Rate, Continuing Operations	19.80%	31.70%

Income Tax, Components of Defer

Income Tax, Components of Deferred Tax Asset and Liability (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Deferred Tax Assets, Gross [Abstract]
Deferred Tax Asset, Allowance For Loan Loss	$ 1,203	$ 1,195
Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross	1,262	190
Deferred Tax Assets, Other	135	216
Deferred Tax Assets, Gross	2,600	1,601
Deferred Tax Liabilities [Abstract]
Deferred Tax Liabilities, Property, Plant and Equipment	280	241
Deferred Tax Liabilities, Originated Mortgage Servicing Rights	362	413
Deferred Tax Liabilities, Other	168	158
Deferred Income Tax Liabilities, Gross, Total	810	812
Deferred Tax Assets (Liabilities), Net	$ 1,790	$ 789	$ 1,280

Change in Net Deferred Tax Asse

Change in Net Deferred Tax Asset (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Change In Net Deferred Tax Asset (Liability) [Rollforward]
Deferred Tax Assets (Liabilities), Net	$ 789	$ 1,280
Deferred Tax (Expense) Benefit Related To Continuing Operations	(71)	(356)
Deferred Taxes, Stockholders' Equity For Change In Accumulated Other Comprehensive (Income) Loss	1,072	(135)
Deferred Tax Assets (Liabilities), Net	$ 1,790	$ 789

Employee Benefits Textuals (Det

Employee Benefits Textuals (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]
401k Employer Matching Contribution	$ 131	$ 127

Derivative Instruments (Details

Derivative Instruments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)
Derivative [Line Items]
Derivative, Notional Amount1	$ 7,234
Derivative Asset Fair Value Gross Asset	52
Derivative Asset, Fair Value, Gross Liability	52
Derivative, Gain (Loss) on Derivative, Net	0
Derivative, Interest Rate Swap, Pay Fixed, Receive Variable [Member]
Derivative [Line Items]
Derivative, Notional Amount1	3,617
Derivative Asset Fair Value Gross Asset	0
Derivative Asset, Fair Value, Gross Liability	52
Derivative, Gain (Loss) on Derivative, Net	189
Derivative, Interest Rate Swap, Pay Variable, Receive Fixed [Member]
Derivative [Line Items]
Derivative, Notional Amount1	3,617
Derivative Asset Fair Value Gross Asset	52
Derivative Asset, Fair Value, Gross Liability	0
Derivative, Gain (Loss) on Derivative, Net	$ (189)

Commitment and Contingencies (D

Commitment and Contingencies (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Commitments to Extend Credit [Member]
Loss Contingencies [Line Items]
Amount of Commitment	$ 61,889	$ 57,014
Financial Standby Letter of Credit [Member]
Loss Contingencies [Line Items]
Amount of Commitment	$ 7,026	$ 7,390

Commitments and Contingencies T

Commitments and Contingencies Textuals (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Liabilty Recorded For Stanby Letter of Credit [Abstract]
Liability Recorded For Standy Letters Of Credit	$ 73	$ 79
Operating Leases, Future Minimum Payments Due [Abstract]
Operating Leases, Future Minimum Payments Due, Current	152
Operating Leases, Future Minimum Payments, Due in Two Years	94
Operating Leases, Future Minimum Payments, Due in Three Years	67
Operating Leases, Future Minimum Payments, Due in Four Years	60
Operating Leases, Future Minimum Payments, Due in Five Years	$ 60

Fair Value (Details)

Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Measurements, Recurring [Member]
Fair Value Disclosure, Securities Available-for-Sale [Abstract]
Fair Value Disclosure, Agency Obligations	$ 51,171	$ 53,062
Fair Value Disclosure, Agency RMBS	118,598	133,072
Fair Value Disclosure, State and Political Subdivisions	70,032	71,563
Fair Value Disclosure, Securities Available-for-Sale, Total	239,801	257,697
Other Assets, Fair Value Disclosure	0	52
Assets, Fair Value Disclosure, Recurring	239,801	257,749
Liabilities Fair Value Disclosure [Abstract]
Other Liabilities, Fair Value Disclosure	0	52
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value Disclosure, Securities Available-for-Sale [Abstract]
Fair Value Disclosure, Agency Obligations	0	0
Fair Value Disclosure, Agency RMBS	0	0
Fair Value Disclosure, State and Political Subdivisions	0	0
Fair Value Disclosure, Securities Available-for-Sale, Total	0	0
Other Assets, Fair Value Disclosure	0	0
Assets, Fair Value Disclosure, Recurring	0	0
Liabilities Fair Value Disclosure [Abstract]
Other Liabilities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value Disclosure, Securities Available-for-Sale [Abstract]
Fair Value Disclosure, Agency Obligations	51,171	53,062
Fair Value Disclosure, Agency RMBS	118,598	133,072
Fair Value Disclosure, State and Political Subdivisions	70,032	71,563
Fair Value Disclosure, Securities Available-for-Sale, Total	239,801	257,697
Other Assets, Fair Value Disclosure	0	52
Assets, Fair Value Disclosure, Recurring	239,801	257,749
Liabilities Fair Value Disclosure [Abstract]
Other Liabilities, Fair Value Disclosure	0	52
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Disclosure, Securities Available-for-Sale [Abstract]
Fair Value Disclosure, Agency Obligations	0	0
Fair Value Disclosure, Agency RMBS	0	0
Fair Value Disclosure, State and Political Subdivisions	0	0
Fair Value Disclosure, Securities Available-for-Sale, Total	0	0
Other Assets, Fair Value Disclosure	0	0
Assets, Fair Value Disclosure, Recurring	0	0
Liabilities Fair Value Disclosure [Abstract]
Other Liabilities, Fair Value Disclosure	0	0
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Abstract]
Loans Held-for-sale, Fair Value Disclosure	383	1,922
Impaired Loans, Fair Value Disclosure	157	2,700
Other Real Esate Owned, Fair Value Disclosure	172	0
Servicing Asset at Fair Value, Amount	1,441	1,644
Assets, Fair Value Disclosure, NonRecurring	2,153	6,266
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Abstract]
Loans Held-for-sale, Fair Value Disclosure	0	0
Impaired Loans, Fair Value Disclosure	0	0
Other Real Esate Owned, Fair Value Disclosure	0	0
Servicing Asset at Fair Value, Amount	0	0
Assets, Fair Value Disclosure, NonRecurring	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Abstract]
Loans Held-for-sale, Fair Value Disclosure	383	1,922
Impaired Loans, Fair Value Disclosure	0	0
Other Real Esate Owned, Fair Value Disclosure	0	0
Servicing Asset at Fair Value, Amount	0	0
Assets, Fair Value Disclosure, NonRecurring	383	1,922
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Abstract]
Loans Held-for-sale, Fair Value Disclosure	0	0
Impaired Loans, Fair Value Disclosure	157	2,700
Other Real Esate Owned, Fair Value Disclosure	172	0
Servicing Asset at Fair Value, Amount	1,441	1,644
Assets, Fair Value Disclosure, NonRecurring	$ 1,770	$ 4,344

Fair Value Unobservable Inputs

Fair Value Unobservable Inputs (Details) - Fair Value, Measurements, Nonrecurring [Member] $ in Thousands	Dec. 31, 2018USD ($)
Impaired Loans [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Assets, Fair Value Disclosure	$ 157
Impaired Loans [Member] | Appraisal, Appraisal Discount [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Unobservable Input, Weighted Average of Input Percent	10.00%
Other Real Estate Owned [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Assets, Fair Value Disclosure	$ 172
Other Real Estate Owned [Member] | Appraisal, Appraisal Discount [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Unobservable Input, Weighted Average of Input Percent	10.00%
Mortgage Servicing Rights [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Assets, Fair Value Disclosure	$ 1,441
Mortgage Servicing Rights [Member] | Discounted Cash Flow, Prepayment Speed [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Unobservable Input, Weighted Average of Input Percent	8.30%
Mortgage Servicing Rights [Member] | Discounted Cash Flow, Discount Rate [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Unobservable Input, Weighted Average of Input Percent	10.00%

Fair Value Financial Instrument

Fair Value Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Fair Value, Financial Assets: [Abstract]
Fair Value, Financial Instruments, Loans, Net	$ 472,118	$ 448,894
Fair Value, Financial Instruments, Loans Held For Sale	383	1,922
Fair Value, Financial Liabilities: [Abstract]
Fair Value, Financial Instruments, Time Deposits	181,237	188,071
Fair Value, Financial Instruments, Long-term Debt	0	3,217
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Financial Assets: [Abstract]
Fair Value, Financial Instruments, Loans, Net	465,456	447,468
Fair Value, Financial Instruments, Loans Held For Sale	397	1,950
Fair Value, Financial Liabilities: [Abstract]
Fair Value, Financial Instruments, Time Deposits	181,168	185,564
Fair Value, Financial Instruments, Long-term Debt	0	3,217
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Financial Assets: [Abstract]
Fair Value, Financial Instruments, Loans, Net	0	0
Fair Value, Financial Instruments, Loans Held For Sale	0	0
Fair Value, Financial Liabilities: [Abstract]
Fair Value, Financial Instruments, Time Deposits	0	0
Fair Value, Financial Instruments, Long-term Debt	0	0
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Financial Assets: [Abstract]
Fair Value, Financial Instruments, Loans, Net	0	0
Fair Value, Financial Instruments, Loans Held For Sale	397	1,950
Fair Value, Financial Liabilities: [Abstract]
Fair Value, Financial Instruments, Time Deposits	181,168	185,564
Fair Value, Financial Instruments, Long-term Debt	0	3,217
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Financial Assets: [Abstract]
Fair Value, Financial Instruments, Loans, Net	465,456	447,468
Fair Value, Financial Instruments, Loans Held For Sale	0	0
Fair Value, Financial Liabilities: [Abstract]
Fair Value, Financial Instruments, Time Deposits	0	0
Fair Value, Financial Instruments, Long-term Debt	$ 0	$ 0

Related Party Transactions (Det

Related Party Transactions (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)
Loans and Leases Receivable, Related Parties [Roll Forward]
Loans and Leases Receivable, Related Parties	$ 3,068
Loans and Leases Receivable, Related Parties, Additions	5,871
Loans and Leases Receivable, Related Parties, Payments	(732)
Loans And Leases Receivable Related Parties, Change in Directors And Executive Officers	0
Loans and Leases Receivable, Related Parties	$ 8,207

Related Party Transactions Text

Related Party Transactions Textuals (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Related Party Transactions [Abstract]
Related Party Deposit Liabilities	$ 19,800	$ 17,800

Regulatory Capital (Details)

Regulatory Capital (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Auburn National Bancorporation [Member]
Tier One Leverage Capital [Abstract]
Tier One Leverage Capital		$ 90,382
Tier One Leverage Capital to Average Assets		10.95%
Tier One Leverage Capital Required for Capital Adequacy		$ 33,012
Tier One Leverage Capital Required for Capital Adequacy to Average Assets		4.00%
Common Equity Tier One Capital [Abstract]
Common Equity Tier One Capital Amount		$ 87,382
Common Equity Tier One Captial To Risk Weighted Assets		16.42%
Common Equity Tier One Captial Required For Capital Adequacy		$ 23,949
Common Equity Tier One Captial Required for Capital Adequacy To Risk Weighted Assets		4.50%
Tier One Risk Based Capital [Abstract]
Tier One Risk Based Capital		$ 90,382
Tier One Risk Based Capital to Risk Weighted Assets		16.98%
Tier One Risk Based Capital Required for Capital Adequacy		$ 31,932
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets		6.00%
Total Risk-Based Capital [Abstract]
Total Risk Based Capital		$ 95,300
Total Risk Based Capital to Risk Weighted Assets		17.91%
Total Risk Based Capital Required for Capital Adequacy		$ 42,576
Total Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets		8.00%
AuburnBank [Member]
Tier One Leverage Capital [Abstract]
Tier One Leverage Capital	$ 91,719	$ 89,217
Tier One Leverage Capital to Average Assets	11.33%	10.82%
Tier One Leverage Capital Required for Capital Adequacy	$ 32,368	$ 32,978
Tier One Leverage Capital Required for Capital Adequacy to Average Assets	4.00%	4.00%
Tier One Leverage Capital Required to be Well Capitalized	$ 40,461	$ 41,222
Tier One Leverage Capital Required to be Well Capitalized to Average Assets	5.00%	5.00%
Common Equity Tier One Capital [Abstract]
Common Equity Tier One Capital Amount	$ 91,719	$ 89,217
Common Equity Tier One Captial To Risk Weighted Assets	16.49%	16.74%
Common Equity Tier One Captial Required For Capital Adequacy	$ 25,031	$ 23,987
Common Equity Tier One Captial Required for Capital Adequacy To Risk Weighted Assets	4.50%	4.50%
Common Equity Tier One Captial Required For Well Capitalized	$ 36,156	$ 34,648
Common Equity Tier One Captial Required For Well Capitalized To Risk Weighted Assets	6.50%	6.50%
Tier One Risk Based Capital [Abstract]
Tier One Risk Based Capital	$ 91,719	$ 89,217
Tier One Risk Based Capital to Risk Weighted Assets	16.49%	16.74%
Tier One Risk Based Capital Required for Capital Adequacy	$ 33,375	$ 31,983
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	6.00%	6.00%
Tier One Risk Based Capital Required to be Well Capitalized	$ 44,500	$ 42,644
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	8.00%	8.00%
Total Risk-Based Capital [Abstract]
Total Risk Based Capital	$ 96,661	$ 94,135
Total Risk Based Capital to Risk Weighted Assets	17.38%	17.66%
Total Risk Based Capital Required for Capital Adequacy	$ 44,500	$ 42,644
Total Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	8.00%	8.00%
Total Risk Based Capital Required to be Well Capitalized	$ 55,625	$ 53,305
Total Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	10.00%	10.00%

Regulatory Capital Textuals (De

Regulatory Capital Textuals (Details) $ in Millions	Dec. 31, 2018USD ($)
Regulatory Capital Requirements [Abstract]
Regulatory Capital, Dividends Without Approval Of Regulators	$ 8
Regulatory Capital, Restricted Investment From Dividends	$ 79.9

Auburn National Bancorporatio_3

Auburn National Bancorporation - Parent Only, Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Assets:
Cash And Due From Banks	$ 13,043	$ 12,942
Premises and equipment, net	13,596	13,791
Other assets	8,338	7,219
Total assets	818,077	853,381
Liabilities:
Accrued expenses and other liabilities	2,529	2,941
Long-term debt		3,217
Total liabilities	729,022	766,475
Stockholders' equity:
Total stockholders' equity	89,055	86,906	$ 82,177
Total liabilities and stockholders' equity	818,077	853,381
Parent Company [Member]
Assets:
Cash And Due From Banks	1,941	1,170
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	87,956	88,741
Premises and equipment, net	0	0
Other assets	626	1,760
Total assets	90,523	91,671
Liabilities:
Accrued expenses and other liabilities	1,468	1,548
Long-term debt	0	3,217
Total liabilities	1,468	4,765
Stockholders' equity:
Total stockholders' equity	89,055	86,906
Total liabilities and stockholders' equity	$ 90,523	$ 91,671

Auburn National Bancorporatio_4

Auburn National Bancorporation - Parent Only, Statement of Earnings (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income:
Other noninterest income	$ 1,486	$ 1,425
Other Expenses [Abstract]
Total interest expense	3,676	3,594
Total noninterest expense	17,874	16,784
Income Tax Expense (Benefit)	2,187	3,637
Net earnings	8,834	7,846
Parent Company [Member]
Income:
Dividends from bank subsidiary	6,533	3,471
Other noninterest income	149	141
Total income	6,682	3,612
Other Expenses [Abstract]
Total interest expense	51	125
Total noninterest expense	237	225
Operating Expenses	288	350
Earnings Before Income Tax Expense (Benefit) And Equity In Undistributed Earnings Of Bank Subsidary	6,394	3,262
Income Tax Expense (Benefit)	(28)	(58)
Earnings Before Equity In Undistributed Earnings Of Bank Subsidary	6,422	3,320
Equity In Undistributed Earnings Of Bank Subsidary	2,412	4,526
Net earnings	$ 8,834	$ 7,846

Auburn National Bancorporatio_5

Auburn National Bancorporation - Parent Only, Statement of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net earnings	$ 8,834	$ 7,846
Adjustments to reconcile net earnings to net cash provided by operating activties:
Depreciation and amortization	938	1,016
Net (increase) decrease in other assets	(221)	592
Net increase in accrued expenses and other liabilities	(402)	(1,095)
Net cash provided by operating activities	12,141	9,401
Cash flows from investing activities:
Net cash used in investing activities	(12,054)	(39,606)
Cash flows from financing activities:
Repayments or retirement of long-term debt	(3,217)	0
Dividends paid	(3,498)	(3,352)
Net cash provided by (used in) financing activities	(40,539)	14,456
Net change in cash and cash equivalents	(40,452)	(15,749)
Cash and cash equivalents at beginning of period	105,528	121,277
Cash and cash equivalents at end of period	65,076	105,528
Parent Company [Member]
Cash flows from operating activities:
Net earnings	8,834	7,846
Adjustments to reconcile net earnings to net cash provided by operating activties:
Net (increase) decrease in other assets	1,134	(879)
Net increase in accrued expenses and other liabilities	(70)	(109)
Equity In Distributed (Undistributed) Earnings Of Bank Subsidary	2,412	4,526
Net cash provided by operating activities	7,486	2,332
Cash flows from financing activities:
Repayments or retirement of long-term debt	(3,217)	0
Dividends paid	(3,498)	(3,352)
Net cash provided by (used in) financing activities	(6,715)	(3,352)
Net change in cash and cash equivalents	771	(1,020)
Cash and cash equivalents at beginning of period	1,170	2,190
Cash and cash equivalents at end of period	$ 1,941	$ 1,170