<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.24.2.u1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>313</ContextCount>
  <ElementCount>383</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>70</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>6</UnitCount>
  <MyReports>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>100000 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>100010 - Statement - CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_StatementCONSOLIDATEDBALANCESHEETS</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>100030 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_StatementCONSOLIDATEDBALANCESHEETSParenthetical</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>100040 - Statement - CONSOLIDATED STATEMENTS OF INCOME (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_StatementCONSOLIDATEDSTATEMENTSOFINCOMEUnaudited</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF INCOME (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>100050 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveIncomeUnaudited</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>100060 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveIncomeParentheticalUnaudited</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>100070 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_StatementCONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>100080 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/StatementConsolidatedStatementsOfChangesInShareholdersEquityParentheticalUnaudited</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>100090 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_StatementCONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>995410 - Disclosure - Pay vs Performance Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/PvpDisclosure</Role>
      <ShortName>Pay vs Performance Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>995445 - Disclosure - Insider Trading Arrangements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements</Role>
      <ShortName>Insider Trading Arrangements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>995455 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>995465 - Disclosure - Recent Significant Accounting Pronouncements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureRecentSignificantAccountingPronouncements</Role>
      <ShortName>Recent Significant Accounting Pronouncements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>995475 - Disclosure - Securities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSecurities</Role>
      <ShortName>Securities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>995485 - Disclosure - Loans</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLoans</Role>
      <ShortName>Loans</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>995495 - Disclosure - Allowance for Credit Losses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureAllowanceForCreditLosses</Role>
      <ShortName>Allowance for Credit Losses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>995505 - Disclosure - Goodwill and Other Intangible Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureGoodwillAndOtherIntangibleAssets</Role>
      <ShortName>Goodwill and Other Intangible Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>995515 - Disclosure - Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLeases</Role>
      <ShortName>Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>995525 - Disclosure - Net Income Per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureNetIncomePerShare</Role>
      <ShortName>Net Income Per Share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>995535 - Disclosure - Stock Incentive Plans</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureStockIncentivePlans</Role>
      <ShortName>Stock Incentive Plans</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>995545 - Disclosure - Fair Value Measurements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureFairValueMeasurements</Role>
      <ShortName>Fair Value Measurements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>995555 - Disclosure - Other Comprehensive Income (Loss)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureOtherComprehensiveIncomeLoss</Role>
      <ShortName>Other Comprehensive Income (Loss)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>995575 - Disclosure - Segment Reporting</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSegmentReporting</Role>
      <ShortName>Segment Reporting</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>995585 - Disclosure - Sale of Masonry Capital Management LLC</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureSaleOfMasonryCapitalManagementLlc</Role>
      <ShortName>Sale of Masonry Capital Management LLC</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>995595 - Disclosure - Share Repurchase Plan</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureShareRepurchasePlan</Role>
      <ShortName>Share Repurchase Plan</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>995605 - Disclosure - Summary of Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>995615 - Disclosure - Securities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSecuritiesTables</Role>
      <ShortName>Securities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSecurities</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>995625 - Disclosure - Loans (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLoansTables</Role>
      <ShortName>Loans (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLoans</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>995635 - Disclosure - Allowance for Credit Losses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureAllowanceForCreditLossesTables</Role>
      <ShortName>Allowance for Credit Losses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/DisclosureAllowanceForCreditLosses</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>995645 - Disclosure - Goodwill and Other Intangible Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureGoodwillAndOtherIntangibleAssetsTables</Role>
      <ShortName>Goodwill and Other Intangible Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureGoodwillAndOtherIntangibleAssets</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>995655 - Disclosure - Leases (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLeasesTables</Role>
      <ShortName>Leases (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLeases</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>995665 - Disclosure - Net Income Per Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureNetIncomePerShareTables</Role>
      <ShortName>Net Income Per Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureNetIncomePerShare</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>995675 - Disclosure - Stock Incentive Plans (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureStockIncentivePlansTables</Role>
      <ShortName>Stock Incentive Plans (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureStockIncentivePlans</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>995685 - Disclosure - Fair Value Measurements (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureFairValueMeasurementsTables</Role>
      <ShortName>Fair Value Measurements (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureFairValueMeasurements</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>995695 - Disclosure - Other Comprehensive Income (Loss) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureOtherComprehensiveIncomeLossTables</Role>
      <ShortName>Other Comprehensive Income (Loss) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/DisclosureOtherComprehensiveIncomeLoss</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>995705 - Disclosure - Segment Reporting (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSegmentReportingTables</Role>
      <ShortName>Segment Reporting (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSegmentReporting</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>995715 - Disclosure - Summary of Significant Accounting Policies (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesNarrativeDetails</Role>
      <ShortName>Summary of Significant Accounting Policies (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesPolicies</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>995725 - Disclosure - Recent Significant Accounting Pronouncements (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureRecentSignificantAccountingPronouncementsNarrativeDetails</Role>
      <ShortName>Recent Significant Accounting Pronouncements (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/DisclosureRecentSignificantAccountingPronouncements</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>995735 - Disclosure - Securities (Amortized Cost and Fair Values of Securities Available for Sale) (Details))</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSecuritiesAmortizedCostAndFairValuesOfSecuritiesAvailableForSaleDetails</Role>
      <ShortName>Securities (Amortized Cost and Fair Values of Securities Available for Sale) (Details))</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSecuritiesTables</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>995745 - Disclosure - Securities (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSecuritiesNarrativeDetails</Role>
      <ShortName>Securities (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSecuritiesTables</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>995755 - Disclosure - Securities (Schedule of Unrealized Losses) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSecuritiesScheduleOfUnrealizedLossesDetails</Role>
      <ShortName>Securities (Schedule of Unrealized Losses) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSecuritiesTables</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>995765 - Disclosure - Securities (Schedule of Amortized Cost and Fair Values of Securities Available For Sale Based upon Contractual Maturities and by Major Investment Categories) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureSecuritiesScheduleOfAmortizedCostAndFairValuesOfSecuritiesAvailableForSaleBasedUponContractualMaturitiesAndByMajorInvestmentCat</Role>
      <ShortName>Securities (Schedule of Amortized Cost and Fair Values of Securities Available For Sale Based upon Contractual Maturities and by Major Investment Categories) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSecuritiesTables</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>995775 - Disclosure - Loans (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLoansNarrativeDetails</Role>
      <ShortName>Loans (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLoansTables</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>995785 - Disclosure - Loans (Schedule of Composition of Loan Portfolio by Major Loan Classifications) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLoansScheduleOfCompositionOfLoanPortfolioByMajorLoanClassificationsDetails</Role>
      <ShortName>Loans (Schedule of Composition of Loan Portfolio by Major Loan Classifications) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLoansTables</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>995795 - Disclosure - Loans (Schedule of Aging of Past Due Loans) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureLoansScheduleOfAgingOfPastDueLoansDetails</Role>
      <ShortName>Loans (Schedule of Aging of Past Due Loans) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLoansTables</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>995805 - Disclosure - Loans (Non-Accrual Loans by Loan Classification) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLoansNonAccrualLoansByLoanClassificationDetails</Role>
      <ShortName>Loans (Non-Accrual Loans by Loan Classification) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLoansTables</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>995825 - Disclosure - Allowance for Credit Losses (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureAllowanceForCreditLossesNarrativeDetails</Role>
      <ShortName>Allowance for Credit Losses (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/DisclosureAllowanceForCreditLossesTables</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>995835 - Disclosure - Allowance for Credit Losses (Summary of Transactions in Allowance for Loan Losses by Major Loan Portfolio Segment) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureAllowanceForCreditLossesSummaryOfTransactionsInAllowanceForLoanLossesByMajorLoanPortfolioSegmentDetails</Role>
      <ShortName>Allowance for Credit Losses (Summary of Transactions in Allowance for Loan Losses by Major Loan Portfolio Segment) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/DisclosureAllowanceForCreditLossesTables</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>995845 - Disclosure - Allowance for Credit Losses (Summary of Provision (Recovery) for Credit Losses) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureAllowanceForCreditLossesSummaryOfProvisionRecoveryForCreditLossesDetails</Role>
      <ShortName>Allowance for Credit Losses (Summary of Provision (Recovery) for Credit Losses) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/DisclosureAllowanceForCreditLossesTables</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>995855 - Disclosure - Allowance for Credit Losses - Summary of Amortized Cost Basis of Collateral Dependent Loans Individually Evaluated to Determine Expected Credit Losses, and Related ACL Allocated to Loans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureAllowanceForCreditLossesSummaryOfAmortizedCostBasisOfCollateralDependentLoansIndividuallyEvaluatedToDetermineExpectedCreditLosse</Role>
      <ShortName>Allowance for Credit Losses - Summary of Amortized Cost Basis of Collateral Dependent Loans Individually Evaluated to Determine Expected Credit Losses, and Related ACL Allocated to Loans (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>995865 - Disclosure - Allowance for Credit Losses (Summary of Investment in Loans by Credit Quality Indicators by Year of Origination) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureAllowanceForCreditLossesSummaryOfInvestmentInLoansByCreditQualityIndicatorsByYearOfOriginationDetails</Role>
      <ShortName>Allowance for Credit Losses (Summary of Investment in Loans by Credit Quality Indicators by Year of Origination) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/DisclosureAllowanceForCreditLossesTables</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>995875 - Disclosure - Goodwill and Other Intangible Assets (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureGoodwillAndOtherIntangibleAssetsNarrativeDetails</Role>
      <ShortName>Goodwill and Other Intangible Assets (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureGoodwillAndOtherIntangibleAssetsTables</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>995885 - Disclosure - Goodwill and Other Intangible Assets - Schedule of Gross Carrying Amounts and Accumulated Amortization of Other Intangible Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureGoodwillAndOtherIntangibleAssetsScheduleOfGrossCarryingAmountsAndAccumulatedAmortizationOfOtherIntangibleAssetsDetails</Role>
      <ShortName>Goodwill and Other Intangible Assets - Schedule of Gross Carrying Amounts and Accumulated Amortization of Other Intangible Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>995895 - Disclosure - Goodwill and Other Intangible Assets - Schedule of Estimated Future Amortization Expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureGoodwillAndOtherIntangibleAssetsScheduleOfEstimatedFutureAmortizationExpenseDetails</Role>
      <ShortName>Goodwill and Other Intangible Assets - Schedule of Estimated Future Amortization Expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>995905 - Disclosure - Leases (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureLeasesNarrativeDetails</Role>
      <ShortName>Leases (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLeasesTables</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>995915 - Disclosure - Leases (Schedule of Lease Liability, Right-of-use Asset, Weighted Average Remaining Lease Term and Discount Rate) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureLeasesScheduleOfLeaseLiabilityRightofuseAssetWeightedAverageRemainingLeaseTermAndDiscountRateDetails</Role>
      <ShortName>Leases (Schedule of Lease Liability, Right-of-use Asset, Weighted Average Remaining Lease Term and Discount Rate) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLeasesTables</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>995925 - Disclosure - Leases (Schedule of Operating Lease Expense) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLeasesScheduleOfOperatingLeaseExpenseDetails</Role>
      <ShortName>Leases (Schedule of Operating Lease Expense) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLeasesTables</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>995935 - Disclosure - Leases (Schedule of Operating Lease Liabilities and Reconciliation of Undiscounted Cash Flows) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLeasesScheduleOfOperatingLeaseLiabilitiesAndReconciliationOfUndiscountedCashFlowsDetails</Role>
      <ShortName>Leases (Schedule of Operating Lease Liabilities and Reconciliation of Undiscounted Cash Flows) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureLeasesTables</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>995945 - Disclosure - Net Income Per Share (Schedule of Weighted Average Number of Shares) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureNetIncomePerShareScheduleOfWeightedAverageNumberOfSharesDetails</Role>
      <ShortName>Net Income Per Share (Schedule of Weighted Average Number of Shares) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureNetIncomePerShareTables</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>995955 - Disclosure - Net Income Per Share (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureNetIncomePerShareNarrativeDetails</Role>
      <ShortName>Net Income Per Share (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureNetIncomePerShareTables</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>995965 - Disclosure - Stock Incentive Plans (Plan duration - Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureStockIncentivePlansPlanDurationNarrativeDetails</Role>
      <ShortName>Stock Incentive Plans (Plan duration - Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureStockIncentivePlansTables</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>995975 - Disclosure - Stock Incentive Plans (Summary of Shares Issued and Available Under Each Plans) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureStockIncentivePlansSummaryOfSharesIssuedAndAvailableUnderEachPlansDetails</Role>
      <ShortName>Stock Incentive Plans (Summary of Shares Issued and Available Under Each Plans) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureStockIncentivePlansTables</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>995985 - Disclosure - Stock Incentive Plans (Changes in the Stock Options Outstanding) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureStockIncentivePlansChangesInStockOptionsOutstandingDetails</Role>
      <ShortName>Stock Incentive Plans (Changes in the Stock Options Outstanding) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureStockIncentivePlansTables</ParentRole>
      <Position>63</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>995995 - Disclosure - Stock Incentive Plans (Summary Information Pertaining to Options Outstanding) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureStockIncentivePlansSummaryInformationPertainingToOptionsOutstandingDetails</Role>
      <ShortName>Stock Incentive Plans (Summary Information Pertaining to Options Outstanding) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureStockIncentivePlansTables</ParentRole>
      <Position>64</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>996005 - Disclosure - Stock Incentive Plans (Changes in the Restricted Stock Grants Outstanding) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureStockIncentivePlansChangesInRestrictedStockGrantsOutstandingDetails</Role>
      <ShortName>Stock Incentive Plans (Changes in the Restricted Stock Grants Outstanding) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureStockIncentivePlansTables</ParentRole>
      <Position>65</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>996015 - Disclosure - Fair Value Measurements (Assets Measured at Fair Value on Recurring Basis) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureFairValueMeasurementsAssetsMeasuredAtFairValueOnRecurringBasisDetails</Role>
      <ShortName>Fair Value Measurements (Assets Measured at Fair Value on Recurring Basis) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureFairValueMeasurementsTables</ParentRole>
      <Position>66</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>996025 - Disclosure - Fair Value Measurements (Assets Measured at Fair Value on Nonrecurring Basis) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureFairValueMeasurementsAssetsMeasuredAtFairValueOnNonrecurringBasisDetails</Role>
      <ShortName>Fair Value Measurements (Assets Measured at Fair Value on Nonrecurring Basis) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureFairValueMeasurementsTables</ParentRole>
      <Position>67</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>996035 - Disclosure - Fair Value Measurements (Quantitative Information About Level 3 Fair Value Measurements) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureFairValueMeasurementsQuantitativeInformationAboutLevel3FairValueMeasurementsDetails</Role>
      <ShortName>Fair Value Measurements (Quantitative Information About Level 3 Fair Value Measurements) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureFairValueMeasurementsTables</ParentRole>
      <Position>68</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>996045 - Disclosure - Fair Value Measurements (Carrying Values and Estimated Fair Values of Financial Instruments) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureFairValueMeasurementsCarryingValuesAndEstimatedFairValuesOfFinancialInstrumentsDetails</Role>
      <ShortName>Fair Value Measurements (Carrying Values and Estimated Fair Values of Financial Instruments) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureFairValueMeasurementsTables</ParentRole>
      <Position>69</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>996055 - Disclosure - Other Comprehensive Income (Loss) - Schedule of Component of Accumulated Other Comprehensive Income (Loss) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureOtherComprehensiveIncomeLossScheduleOfComponentOfAccumulatedOtherComprehensiveIncomeLossDetails</Role>
      <ShortName>Other Comprehensive Income (Loss) - Schedule of Component of Accumulated Other Comprehensive Income (Loss) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/DisclosureOtherComprehensiveIncomeLossTables</ParentRole>
      <Position>70</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>996075 - Disclosure - Segment Reporting (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSegmentReportingNarrativeDetails</Role>
      <ShortName>Segment Reporting (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSegmentReportingTables</ParentRole>
      <Position>71</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>996085 - Disclosure - Segment Reporting (Schedule of Segment Reporting Information) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSegmentReportingScheduleOfSegmentReportingInformationDetails</Role>
      <ShortName>Segment Reporting (Schedule of Segment Reporting Information) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/Role_DisclosureSegmentReportingTables</ParentRole>
      <Position>72</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>996095 - Disclosure - Sale of Masonry Capital Management, LLC (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureSaleOfMasonryCapitalManagementLlcNarrativeDetails</Role>
      <ShortName>Sale of Masonry Capital Management, LLC (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/DisclosureSaleOfMasonryCapitalManagementLlc</ParentRole>
      <Position>73</Position>
    </Report>
    <Report instance="vabk-20240630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>996105 - Disclosure - Share Repurchase Plan (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.vnb.com/20240630/taxonomy/role/DisclosureShareRepurchasePlanNarrativeDetails</Role>
      <ShortName>Share Repurchase Plan (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.vnb.com/20240630/taxonomy/role/DisclosureShareRepurchasePlan</ParentRole>
      <Position>74</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="10-Q" isDefinitelyFs="true" isUsgaap="true" original="vabk-20240630.htm">vabk-20240630.htm</File>
    <File>vabk-20240630.xsd</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="1454">http://fasb.org/us-gaap/2024</BaseTaxonomy>
    <BaseTaxonomy items="29">http://xbrl.sec.gov/dei/2024</BaseTaxonomy>
    <BaseTaxonomy items="4">http://xbrl.sec.gov/ecd/2024</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>false</HasPresentationLinkbase>
  <HasCalculationLinkbase>false</HasCalculationLinkbase>
</FilingSummary>
