XML 12 R1.htm IDEA: XBRL DOCUMENT v3.25.1
Document And Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2024
Mar. 24, 2025
Jun. 28, 2024
Document Information [Line Items]      
Entity Central Index Key 0000796534    
Entity Registrant Name NATIONAL BANKSHARES, INC.    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2024    
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2024    
Document Transition Report false    
Entity File Number 0-15204    
Entity Incorporation, State or Country Code VA    
Entity Tax Identification Number 54-1375874    
Entity Address, Address Line One 101 Hubbard Street    
Entity Address, City or Town Blacksburg    
Entity Address, State or Province VA    
Entity Address, Postal Zip Code 24062-9002    
City Area Code 540    
Local Phone Number 951-6300    
Title of 12(b) Security Common Stock, par value $1.25 per share    
Trading Symbol NKSH    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 179,901,332
Entity Common Stock, Shares Outstanding   6,363,371  
Auditor Name Yount, Hyde & Barbour, P.C    
Auditor Firm ID 613    
Auditor Location Winchester, Virginia    
Documents Incorporated by Reference [Text Block]

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the following document is incorporated herein by reference into the Part of the Form 10-K indicated.

 

Document

Part of Form 10-K into which incorporated

National Bankshares, Inc. Proxy Statement for the 2025 Annual Meeting of Stockholders

Part III
   
Auditor Opinion [Text Block]

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of National Bankshares, Inc. and its subsidiaries (the Company) as of December 31, 2024 and 2023, the related consolidated statements of income, comprehensive income, changes in stockholders' equity and cash flows for the years then ended, and the related notes to the consolidated financial statements (collectively, the financial statements). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2024 and 2023, and the results of its operations and its cash flows for the years then ended, in conformity with accounting principles generally accepted in the United States of America.