Note 1 - General and Summary of Significant Accounting Policies	9 Months Ended
Sep. 30, 2024
Notes to Financial Statements
Significant Accounting Policies [Text Block]	Note 1: General and Summary of Significant Accounting Policies The consolidated financial statements of National Bankshares, Inc. (“NBI”) and its wholly-owned subsidiaries, The National Bank of Blacksburg (the “Bank” or “NBB”) and National Bankshares Financial Services, Inc. (“NBFS”) (collectively, the “Company”), conform to accounting principles generally accepted in the United States of America (“GAAP”) and to general practices within the banking industry. All significant intercompany accounts and transactions between the Company and its subsidiaries have been eliminated. The accompanying interim period consolidated financial statements are unaudited; however, in the opinion of the Company’s management, all adjustments consisting of normal recurring adjustments, which are necessary for a fair presentation of the consolidated financial statements, have been included. Application of the principles of GAAP and practices within the banking industry requires management to make estimates, assumptions, and judgments that affect the amounts reported in the financial statements and accompanying notes. These estimates, assumptions, and judgments are based on information available as of the date of the financial statement; accordingly, as this information changes, the financial statements may reflect different estimates, assumptions, and judgments. Certain policies inherently rely more extensively on the use of estimates, assumptions, and judgments and as such may have a greater possibility of producing results that could be materially different than originally reported. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance of credit losses on loans and acquisition accounting. The results of operations for the three and nine months ended September 30, 2024 are not necessarily indicative of results of operations for the full year or any other interim period. The interim period consolidated financial statements and financial information included in this Form 10-Q should be read in conjunction with the notes to consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 (“2023 Form 10-K”). The Company’s significant accounting policies followed in preparation of the unaudited consolidated financial statements are disclosed in Note 1 of the 2023 Form 10-K. All amounts and disclosures included in this quarterly report as of December 31, 2023, were derived from the Company’s audited consolidated financial statements. Certain items in the prior period financial statements have been reclassified to conform to the current presentation. These reclassifications had no effect on prior year net income or stockholders’ equity. The Company posts all reports required to be filed under the Securities Exchange Act of 1934 on its web site at www.nationalbankshares.com. In addition to applying significant accounting policies disclosed in Note 1 of the 2023 Form 10-K, the Company implemented accounting policies appropriate for its merger with Frontier Community Bank (“FCB”). Business combinations are accounted for under Accounting Standards Codification (“ASC”) 805, Business Combinations, using the acquisition method of accounting. The acquisition method of accounting requires an acquirer to record at fair value on the acquisition date the assets acquired and the liabilities assumed. To determine the fair values, the Company relies on internal or third-party valuations, such as appraisals, valuations based on discounted cash flow analyses, or other valuation techniques. Under the acquisition method of accounting, the Company identifies the acquirer and the closing date and applies applicable recognition principles and conditions. Acquisition-related costs are costs the Company incurs to effect a business combination. Those costs include advisory, legal, accounting, valuation, and other professional or consulting fees. Some other examples of costs to the Company include systems conversions, integration planning consultants and advertising costs. The Company accounts for acquisition-related costs as expenses in the periods in which the costs are incurred and the services are received, with one exception. The costs to issue debt or equity securities are recognized in accordance with other applicable GAAP. These acquisition-related costs have been and will be included within the consolidated statements of income classified within the noninterest expenses caption. The most significant assessment of fair value in the Company’s accounting for business combinations relates to the valuation of an acquired loan portfolio. At acquisition, loans are classified as either (i) purchase credit-deteriorated (“PCD”) loans or (ii) non-PCD loans and are recorded at fair value on the date of acquisition. PCD loans are those for which there is more than insignificant evidence of credit deterioration since origination. Fair values are determined primarily through a discounted cash flow approach which considers the acquired loans’ underlying characteristics, including account types, remaining terms, annual interest rates, interest types, timing of principal and interest payments, current market rates, and remaining balances. Estimates of fair value also include estimates of default, loss severity, and estimated prepayments. At acquisition, an allowance for credit losses (“ACL”) for PCD loans is determined based upon the Company’s methodology for estimating the ACL on loans. This allowance is credited to the ACL on loans with a corresponding adjustment to the amortized cost basis of the loan on the date of the acquisition. The difference between the new amortized cost basis and the unpaid principal balance is either a noncredit discount or premium that is amortized or accreted to interest income over the remaining life of the loan. Disposals of PCD loans, which may include sale of loans to third parties, receipt of payments in full or in part from the borrower or foreclosure of the collateral, result in removal of the loan from the loan portfolio at its carrying amount. For non-PCD loans, an ACL is established in a manner that is consistent with the Company’s originated loans. The ACL is determined using the Company’s methodology and the related ACL for non-PCD loans is recorded through a charge to the provision for credit losses in the period in which the loans are purchased or acquired. The entirety of any purchase discount or premium on non-PCD loans is amortized or accreted to interest income over the remaining life of the loan. In accordance with ASC 805, the Company also identified intangible assets acquired. Intangible assets lack physical substance but have contractual or other legal rights or are capable of being sold or exchanged either on their own or in combination with a related contract, asset or liability. Intangible assets are initially recorded at fair value. Determining fair value is subjective, requiring the use of estimates, assumptions and management judgment. Intangible assets that have finite lives are amortized over their estimated useful lives and are subject to impairment testing. Upon acquisition of FCB, the Company recognized a core deposit intangible asset, which represents the value of customer deposit relationships. Core deposit intangible assets are amortized over an estimated useful life of 10 years using an accelerated method which approximates the estimated attrition of the acquired deposits. Risks and Uncertainties The Company is closely monitoring risks that may impact its business, including high inflation, along with U.S. monetary policy maneuvers to reduce inflation. Inflation and U.S. monetary policy maneuvers to reduce it may impact the Company’s customers’ demand for banking services and ability to qualify for and/or repay loans. These risks could adversely affect the Company’s business, financial condition, results of operations, cash flows, credit risk, asset valuations and capital position. Recent Accounting Pronouncements ASU 2023-09 In December 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update (“ASU”) 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures.” The amendments in this ASU require an entity to disclose specific categories in the rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold, which is greater than five percent of the amount computed by multiplying pretax income by the entity’s applicable statutory rate, on an annual basis. Additionally, the amendments in this ASU require an entity to disclose the amount of income taxes paid (net of refunds received) disaggregated by federal, state, and foreign taxes and the amount of income taxes paid (net of refunds received) disaggregated by individual jurisdictions that are equal to or greater than five percent of total income taxes paid (net of refunds received). Lastly, the amendments in this ASU require an entity to disclose income (or loss) from continuing operations before income tax expense (or benefit) disaggregated between domestic and foreign and income tax expense (or benefit) from continuing operations disaggregated by federal, state, and foreign. This ASU is effective for annual periods beginning after December 15, 2024. Early adoption is permitted. The amendments should be applied on a prospective basis; however, retrospective application is permitted. The Company does not expect the adoption of ASU 2023-09 to have a material impact on its consolidated financial statements. In November 2024, the FASB issued ASU 2024-03, “Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses.” ASU 2024-03 requires public companies to disclose, in the notes to the financial statements, specific information about certain costs and expenses at each interim and annual reporting period. This includes disclosing amounts related to employee compensation, depreciation, and intangible asset amortization. In addition, public companies will need to provide qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively. ASU 2024-03 is effective for public business entities for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. Implementation of ASU 2024-03 may be applied prospectively or retrospectively. The Company does not expect the adoption of ASU 2024-03 to have a material impact on its consolidated financial statements.

Note 1 - General and Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2024

Significant Accounting Policies [Text Block]

Note 1: General and Summary of Significant Accounting Policies

The consolidated financial statements of National Bankshares, Inc. (“NBI”) and its wholly-owned subsidiaries, The National Bank of Blacksburg (the “Bank” or “NBB”) and National Bankshares Financial Services, Inc. (“NBFS”) (collectively, the “Company”), conform to accounting principles generally accepted in the United States of America (“GAAP”) and to general practices within the banking industry. All significant intercompany accounts and transactions between the Company and its subsidiaries have been eliminated. The accompanying interim period consolidated financial statements are unaudited; however, in the opinion of the Company’s management, all adjustments consisting of normal recurring adjustments, which are necessary for a fair presentation of the consolidated financial statements, have been included.

Application of the principles of GAAP and practices within the banking industry requires management to make estimates, assumptions, and judgments that affect the amounts reported in the financial statements and accompanying notes. These estimates, assumptions, and judgments are based on information available as of the date of the financial statement; accordingly, as this information changes, the financial statements may reflect different estimates, assumptions, and judgments. Certain policies inherently rely more extensively on the use of estimates, assumptions, and judgments and as such may have a greater possibility of producing results that could be materially different than originally reported. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance of credit losses on loans and acquisition accounting.

The results of operations for the three and nine months ended September 30, 2024 are not necessarily indicative of results of operations for the full year or any other interim period. The interim period consolidated financial statements and financial information included in this Form 10-Q should be read in conjunction with the notes to consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 (“2023 Form 10-K”). The Company’s significant accounting policies followed in preparation of the unaudited consolidated financial statements are disclosed in Note 1 of the 2023 Form 10-K. All amounts and disclosures included in this quarterly report as of December 31, 2023, were derived from the Company’s audited consolidated financial statements. Certain items in the prior period financial statements have been reclassified to conform to the current presentation. These reclassifications had no effect on prior year net income or stockholders’ equity. The Company posts all reports required to be filed under the Securities Exchange Act of 1934 on its web site at www.nationalbankshares.com.

In addition to applying significant accounting policies disclosed in Note 1 of the 2023 Form 10-K, the Company implemented accounting policies appropriate for its merger with Frontier Community Bank (“FCB”). Business combinations are accounted for under Accounting Standards Codification (“ASC”) 805, Business Combinations, using the acquisition method of accounting. The acquisition method of accounting requires an acquirer to record at fair value on the acquisition date the assets acquired and the liabilities assumed. To determine the fair values, the Company relies on internal or third-party valuations, such as appraisals, valuations based on discounted cash flow analyses, or other valuation techniques.

Under the acquisition method of accounting, the Company identifies the acquirer and the closing date and applies applicable recognition principles and conditions. Acquisition-related costs are costs the Company incurs to effect a business combination. Those costs include advisory, legal, accounting, valuation, and other professional or consulting fees. Some other examples of costs to the Company include systems conversions, integration planning consultants and advertising costs. The Company accounts for acquisition-related costs as expenses in the periods in which the costs are incurred and the services are received, with one exception. The costs to issue debt or equity securities are recognized in accordance with other applicable GAAP. These acquisition-related costs have been and will be included within the consolidated statements of income classified within the noninterest expenses caption.

The most significant assessment of fair value in the Company’s accounting for business combinations relates to the valuation of an acquired loan portfolio. At acquisition, loans are classified as either (i) purchase credit-deteriorated (“PCD”) loans or (ii) non-PCD loans and are recorded at fair value on the date of acquisition. PCD loans are those for which there is more than insignificant evidence of credit deterioration since origination. Fair values are determined primarily through a discounted cash flow approach which considers the acquired loans’ underlying characteristics, including account types, remaining terms, annual interest rates, interest types, timing of principal and interest payments, current market rates, and remaining balances. Estimates of fair value also include estimates of default, loss severity, and estimated prepayments.

At acquisition, an allowance for credit losses (“ACL”) for PCD loans is determined based upon the Company’s methodology for estimating the ACL on loans. This allowance is credited to the ACL on loans with a corresponding adjustment to the amortized cost basis of the loan on the date of the acquisition. The difference between the new amortized cost basis and the unpaid principal balance is either a noncredit discount or premium that is amortized or accreted to interest income over the remaining life of the loan. Disposals of PCD loans, which may include sale of loans to third parties, receipt of payments in full or in part from the borrower or foreclosure of the collateral, result in removal of the loan from the loan portfolio at its carrying amount.

For non-PCD loans, an ACL is established in a manner that is consistent with the Company’s originated loans. The ACL is determined using the Company’s methodology and the related ACL for non-PCD loans is recorded through a charge to the provision for credit losses in the period in which the loans are purchased or acquired. The entirety of any purchase discount or premium on non-PCD loans is amortized or accreted to interest income over the remaining life of the loan.

In accordance with ASC 805, the Company also identified intangible assets acquired. Intangible assets lack physical substance but have contractual or other legal rights or are capable of being sold or exchanged either on their own or in combination with a related contract, asset or liability. Intangible assets are initially recorded at fair value. Determining fair value is subjective, requiring the use of estimates, assumptions and management judgment. Intangible assets that have finite lives are amortized over their estimated useful lives and are subject to impairment testing. Upon acquisition of FCB, the Company recognized a core deposit intangible asset, which represents the value of customer deposit relationships. Core deposit intangible assets are amortized over an estimated useful life of 10 years using an accelerated method which approximates the estimated attrition of the acquired deposits.

Risks and Uncertainties

The Company is closely monitoring risks that may impact its business, including high inflation, along with U.S. monetary policy maneuvers to reduce inflation. Inflation and U.S. monetary policy maneuvers to reduce it may impact the Company’s customers’ demand for banking services and ability to qualify for and/or repay loans. These risks could adversely affect the Company’s business, financial condition, results of operations, cash flows, credit risk, asset valuations and capital position.

Recent Accounting Pronouncements

ASU 2023-09

In December 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update (“ASU”) 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures.” The amendments in this ASU require an entity to disclose specific categories in the rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold, which is greater than five percent of the amount computed by multiplying pretax income by the entity’s applicable statutory rate, on an annual basis. Additionally, the amendments in this ASU require an entity to disclose the amount of income taxes paid (net of refunds received) disaggregated by federal, state, and foreign taxes and the amount of income taxes paid (net of refunds received) disaggregated by individual jurisdictions that are equal to or greater than five percent of total income taxes paid (net of refunds received). Lastly, the amendments in this ASU require an entity to disclose income (or loss) from continuing operations before income tax expense (or benefit) disaggregated between domestic and foreign and income tax expense (or benefit) from continuing operations disaggregated by federal, state, and foreign. This ASU is effective for annual periods beginning after December 15, 2024. Early adoption is permitted. The amendments should be applied on a prospective basis; however, retrospective application is permitted. The Company does not expect the adoption of ASU 2023-09 to have a material impact on its consolidated financial statements.

In November 2024, the FASB issued ASU 2024-03, “Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses.” ASU 2024-03 requires public companies to disclose, in the notes to the financial statements, specific information about certain costs and expenses at each interim and annual reporting period. This includes disclosing amounts related to employee compensation, depreciation, and intangible asset amortization. In addition, public companies will need to provide qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively. ASU 2024-03 is effective for public business entities for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. Implementation of ASU 2024-03 may be applied prospectively or retrospectively. The Company does not expect the adoption of ASU 2024-03 to have a material impact on its consolidated financial statements.