<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.22.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>382</ContextCount>
  <ElementCount>352</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>73</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>9</UnitCount>
  <MyReports>
    <Report instance="uwhr-10q_20220331.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.uwharrie.com/20220331/taxonomy/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>100010 - Statement - Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/StatementConsolidatedBalanceSheets</Role>
      <ShortName>Consolidated Balance Sheets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>100020 - Statement - Consolidated Balance Sheets (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/StatementConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>Consolidated Balance Sheets (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>100030 - Statement - Consolidated Statements of Income (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/StatementConsolidatedStatementsOfIncomeUnaudited</Role>
      <ShortName>Consolidated Statements of Income (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>100040 - Statement - Consolidated Statements of Comprehensive Income (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveIncomeUnaudited</Role>
      <ShortName>Consolidated Statements of Comprehensive Income (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>100050 - Statement - Consolidated Statement of Changes in Shareholders' Equity (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/StatementConsolidatedStatementOfChangesInShareholdersEquityUnaudited</Role>
      <ShortName>Consolidated Statement of Changes in Shareholders' Equity (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>100060 - Statement - Consolidated Statements of Cash Flows (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnaudited</Role>
      <ShortName>Consolidated Statements of Cash Flows (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>100070 - Disclosure - Basis of Presentation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureBasisOfPresentation</Role>
      <ShortName>Basis of Presentation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>100080 - Disclosure - Comprehensive Income (Loss)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureComprehensiveIncomeLoss</Role>
      <ShortName>Comprehensive Income (Loss)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>100090 - Disclosure - Noncontrolling Interest</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureNoncontrollingInterest</Role>
      <ShortName>Noncontrolling Interest</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>100100 - Disclosure - Per Share Data</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosurePerShareData</Role>
      <ShortName>Per Share Data</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>100110 - Disclosure - Investment and Equity Securities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureInvestmentAndEquitySecurities</Role>
      <ShortName>Investment and Equity Securities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>100120 - Disclosure - Loans Held for Investment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureLoansHeldForInvestment</Role>
      <ShortName>Loans Held for Investment</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>100130 - Disclosure - Allowance for Loan Losses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureAllowanceForLoanLosses</Role>
      <ShortName>Allowance for Loan Losses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>100140 - Disclosure - Troubled Debt Restructures</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureTroubledDebtRestructures</Role>
      <ShortName>Troubled Debt Restructures</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>100150 - Disclosure - Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureLeases</Role>
      <ShortName>Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>100160 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>100170 - Disclosure - Fair Value Disclosures</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureFairValueDisclosures</Role>
      <ShortName>Fair Value Disclosures</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>100180 - Disclosure - Fair Values of Financial Instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureFairValuesOfFinancialInstruments</Role>
      <ShortName>Fair Values of Financial Instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>100190 - Disclosure - Recent Accounting Pronouncements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureRecentAccountingPronouncements</Role>
      <ShortName>Recent Accounting Pronouncements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>100200 - Disclosure - Mortgage Banking Derivatives</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureMortgageBankingDerivatives</Role>
      <ShortName>Mortgage Banking Derivatives</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>100210 - Disclosure - Basis of Presentation (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureBasisOfPresentationPolicies</Role>
      <ShortName>Basis of Presentation (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureRecentAccountingPronouncements</ParentRole>
      <Position>22</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>100220 - Disclosure - Comprehensive Income (Loss) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureComprehensiveIncomeLossTables</Role>
      <ShortName>Comprehensive Income (Loss) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureComprehensiveIncomeLoss</ParentRole>
      <Position>23</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>100230 - Disclosure - Investment and Equity Securities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureInvestmentAndEquitySecuritiesTables</Role>
      <ShortName>Investment and Equity Securities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureInvestmentAndEquitySecurities</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>100240 - Disclosure - Loans Held for Investment (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureLoansHeldForInvestmentTables</Role>
      <ShortName>Loans Held for Investment (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureLoansHeldForInvestment</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>100250 - Disclosure - Allowance for Loan Losses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureAllowanceForLoanLossesTables</Role>
      <ShortName>Allowance for Loan Losses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureAllowanceForLoanLosses</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>100260 - Disclosure - Troubled Debt Restructures (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureTroubledDebtRestructuresTables</Role>
      <ShortName>Troubled Debt Restructures (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureTroubledDebtRestructures</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>100270 - Disclosure - Leases (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureLeasesTables</Role>
      <ShortName>Leases (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureLeases</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>100280 - Disclosure - Commitments and Contingencies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureCommitmentsAndContingenciesTables</Role>
      <ShortName>Commitments and Contingencies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureCommitmentsAndContingencies</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>100290 - Disclosure - Fair Value Disclosures (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureFairValueDisclosuresTables</Role>
      <ShortName>Fair Value Disclosures (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureFairValueDisclosures</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>100300 - Disclosure - Fair Values of Financial Instruments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureFairValuesOfFinancialInstrumentsTables</Role>
      <ShortName>Fair Values of Financial Instruments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureFairValuesOfFinancialInstruments</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>100310 - Disclosure - Mortgage Banking Derivatives (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureMortgageBankingDerivativesTables</Role>
      <ShortName>Mortgage Banking Derivatives (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureMortgageBankingDerivatives</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>100320 - Disclosure - Comprehensive Income (Loss) - Accumulated Other Comprehensive Income (loss) (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureComprehensiveIncomeLossAccumulatedOtherComprehensiveIncomeLossDetail</Role>
      <ShortName>Comprehensive Income (Loss) - Accumulated Other Comprehensive Income (loss) (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureComprehensiveIncomeLossTables</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>100330 - Disclosure - Comprehensive Income (Loss) - Accumulated Other Comprehensive Income (loss) (Parenthetical) (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureComprehensiveIncomeLossAccumulatedOtherComprehensiveIncomeLossParentheticalDetail</Role>
      <ShortName>Comprehensive Income (Loss) - Accumulated Other Comprehensive Income (loss) (Parenthetical) (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureComprehensiveIncomeLossTables</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>100340 - Disclosure - Noncontrolling Interest - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureNoncontrollingInterestAdditionalInformationDetail</Role>
      <ShortName>Noncontrolling Interest - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>35</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>100350 - Disclosure - Per Share Data - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosurePerShareDataAdditionalInformationDetail</Role>
      <ShortName>Per Share Data - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>100360 - Disclosure - Investment and Equity Securities - Carrying Amounts and Fair Values of Securities Available for Sale and Held to Maturity (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureInvestmentAndEquitySecuritiesCarryingAmountsAndFairValuesOfSecuritiesAvailableForSaleAndHeldToMaturityDetail</Role>
      <ShortName>Investment and Equity Securities - Carrying Amounts and Fair Values of Securities Available for Sale and Held to Maturity (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>100370 - Disclosure - Investment and Equity Securities - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureInvestmentAndEquitySecuritiesAdditionalInformationDetail</Role>
      <ShortName>Investment and Equity Securities - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>100380 - Disclosure - Investment and Equity Securities - Sales of Securities Available for Sale (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureInvestmentAndEquitySecuritiesSalesOfSecuritiesAvailableForSaleDetail</Role>
      <ShortName>Investment and Equity Securities - Sales of Securities Available for Sale (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>100390 - Disclosure - Investment and Equity Securities - Gross Unrealized Losses and Fair Value of Investments (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureInvestmentAndEquitySecuritiesGrossUnrealizedLossesAndFairValueOfInvestmentsDetail</Role>
      <ShortName>Investment and Equity Securities - Gross Unrealized Losses and Fair Value of Investments (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>100400 - Disclosure - Investment and Equity Securities - Investment Securities - Gross Unrealized Losses and Fair Value of Investments (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureInvestmentAndEquitySecuritiesInvestmentSecuritiesGrossUnrealizedLossesAndFairValueOfInvestmentsDetail</Role>
      <ShortName>Investment and Equity Securities - Investment Securities - Gross Unrealized Losses and Fair Value of Investments (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>100410 - Disclosure - Investment and Equity Securities - Amortized Cost and Fair Value of Available for Sale Securities Portfolio (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureInvestmentAndEquitySecuritiesAmortizedCostAndFairValueOfAvailableForSaleSecuritiesPortfolioDetail</Role>
      <ShortName>Investment and Equity Securities - Amortized Cost and Fair Value of Available for Sale Securities Portfolio (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>100420 - Disclosure - Investment and Equity Securities - Amortized Cost and Fair Value of Held to Maturity Securities Portfolio (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureInvestmentAndEquitySecuritiesAmortizedCostAndFairValueOfHeldToMaturitySecuritiesPortfolioDetail</Role>
      <ShortName>Investment and Equity Securities - Amortized Cost and Fair Value of Held to Maturity Securities Portfolio (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>100440 - Disclosure - Investment and Equity Securities - Unrealized Gain and Losses related to Equity Securities (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureInvestmentAndEquitySecuritiesUnrealizedGainAndLossesRelatedToEquitySecuritiesDetail</Role>
      <ShortName>Investment and Equity Securities - Unrealized Gain and Losses related to Equity Securities (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>100450 - Disclosure - Loans Held for Investment - Composition of Net Loans Held for Investment by Class (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureLoansHeldForInvestmentCompositionOfNetLoansHeldForInvestmentByClassDetail</Role>
      <ShortName>Loans Held for Investment - Composition of Net Loans Held for Investment by Class (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>100460 - Disclosure - Loans Held for Investment - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureLoansHeldForInvestmentAdditionalInformationDetail</Role>
      <ShortName>Loans Held for Investment - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>100470 - Disclosure - Allowance for Loan Losses - Changes in Allowance for Loan Losses (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureAllowanceForLoanLossesChangesInAllowanceForLoanLossesDetail</Role>
      <ShortName>Allowance for Loan Losses - Changes in Allowance for Loan Losses (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>100480 - Disclosure - Allowance for Loan Losses - Schedule of Loans and Reserve Balances by Loan Segment Both Individually and Collectively Evaluated for Impairment (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureAllowanceForLoanLossesScheduleOfLoansAndReserveBalancesByLoanSegmentBothIndividuallyAndCollectivelyEvaluatedForImpairmentDetail</Role>
      <ShortName>Allowance for Loan Losses - Schedule of Loans and Reserve Balances by Loan Segment Both Individually and Collectively Evaluated for Impairment (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>100490 - Disclosure - Allowance for Loan Losses - Past Due Information of Loan Portfolio by Class (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureAllowanceForLoanLossesPastDueInformationOfLoanPortfolioByClassDetail</Role>
      <ShortName>Allowance for Loan Losses - Past Due Information of Loan Portfolio by Class (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>100500 - Disclosure - Allowance for Loan Losses - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureAllowanceForLoanLossesAdditionalInformationDetail</Role>
      <ShortName>Allowance for Loan Losses - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>100510 - Disclosure - Allowance for Loan Losses - Composition of Nonaccrual Loans by Class (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureAllowanceForLoanLossesCompositionOfNonaccrualLoansByClassDetail</Role>
      <ShortName>Allowance for Loan Losses - Composition of Nonaccrual Loans by Class (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>100520 - Disclosure - Allowance for Loan Losses - Summary of Risk Grades of Portfolio by Class (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureAllowanceForLoanLossesSummaryOfRiskGradesOfPortfolioByClassDetail</Role>
      <ShortName>Allowance for Loan Losses - Summary of Risk Grades of Portfolio by Class (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>100530 - Disclosure - Allowance for Loan Losses - Summary of Performing and Nonperforming Loans by Class (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureAllowanceForLoanLossesSummaryOfPerformingAndNonperformingLoansByClassDetail</Role>
      <ShortName>Allowance for Loan Losses - Summary of Performing and Nonperforming Loans by Class (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>100540 - Disclosure - Allowance for Loan Losses - Summary of Loans Deemed Impaired and Specific Reserves Allocated by Class (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureAllowanceForLoanLossesSummaryOfLoansDeemedImpairedAndSpecificReservesAllocatedByClassDetail</Role>
      <ShortName>Allowance for Loan Losses - Summary of Loans Deemed Impaired and Specific Reserves Allocated by Class (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>100550 - Disclosure - Troubled Debt Restructures - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureTroubledDebtRestructuresAdditionalInformationDetail</Role>
      <ShortName>Troubled Debt Restructures - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>100560 - Disclosure - Troubled Debt Restructures - Schedule of Status of Types of Debt Restructuring (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureTroubledDebtRestructuresScheduleOfStatusOfTypesOfDebtRestructuringDetail</Role>
      <ShortName>Troubled Debt Restructures - Schedule of Status of Types of Debt Restructuring (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>100570 - Disclosure - Leases - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureLeasesAdditionalInformationDetail</Role>
      <ShortName>Leases - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>100580 - Disclosure - Leases - Summary of Other Information Related to Operating Leases (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureLeasesSummaryOfOtherInformationRelatedToOperatingLeasesDetail</Role>
      <ShortName>Leases - Summary of Other Information Related to Operating Leases (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>100590 - Disclosure - Leases - Summary of the Maturity of Remaining Lease Liabilities (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureLeasesSummaryOfMaturityOfRemainingLeaseLiabilitiesDetail</Role>
      <ShortName>Leases - Summary of the Maturity of Remaining Lease Liabilities (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>100610 - Disclosure - Commitments and Contingencies - Outstanding Financial Instruments Whose Contract Amounts Represent Credit Risk (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureCommitmentsAndContingenciesOutstandingFinancialInstrumentsWhoseContractAmountsRepresentCreditRiskDetail</Role>
      <ShortName>Commitments and Contingencies - Outstanding Financial Instruments Whose Contract Amounts Represent Credit Risk (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>100620 - Disclosure - Fair Value Disclosures - Fair Value Information for Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureFairValueDisclosuresFairValueInformationForAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail</Role>
      <ShortName>Fair Value Disclosures - Fair Value Information for Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>100630 - Disclosure - Fair Value Disclosures - Schedule of Reconciliation for Recurring Level 3 Fair Value Measurements (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureFairValueDisclosuresScheduleOfReconciliationForRecurringLevel3FairValueMeasurementsDetail</Role>
      <ShortName>Fair Value Disclosures - Schedule of Reconciliation for Recurring Level 3 Fair Value Measurements (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>100640 - Disclosure - Fair Value Disclosure (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureFairValueDisclosureDetail</Role>
      <ShortName>Fair Value Disclosure (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureFairValueDisclosuresTables</ParentRole>
      <Position>63</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>100650 - Disclosure - Fair Value Disclosures - Assets Measured at Fair Value on Nonrecurring Basis (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureFairValueDisclosuresAssetsMeasuredAtFairValueOnNonrecurringBasisDetail</Role>
      <ShortName>Fair Value Disclosures - Assets Measured at Fair Value on Nonrecurring Basis (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>100660 - Disclosure - Fair Value Disclosures - Quantitative Information about Level 3 Fair Value Measurements (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureFairValueDisclosuresQuantitativeInformationAboutLevel3FairValueMeasurementsDetail</Role>
      <ShortName>Fair Value Disclosures - Quantitative Information about Level 3 Fair Value Measurements (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>100670 - Disclosure - Fair Values of Financial Instruments - Comparison of Carrying Amounts and Estimated Fair Value of Financial Instruments (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureFairValuesOfFinancialInstrumentsComparisonOfCarryingAmountsAndEstimatedFairValueOfFinancialInstrumentsDetail</Role>
      <ShortName>Fair Values of Financial Instruments - Comparison of Carrying Amounts and Estimated Fair Value of Financial Instruments (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="uwhr-10q_20220331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>100680 - Disclosure - Mortgage Banking Derivatives - Summary of Notional Amount and Fair Value of Mortgage Banking Derivatives (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uwharrie.com/20220331/taxonomy/role/DisclosureMortgageBankingDerivativesSummaryOfNotionalAmountAndFairValueOfMortgageBankingDerivativesDetail</Role>
      <ShortName>Mortgage Banking Derivatives - Summary of Notional Amount and Fair Value of Mortgage Banking Derivatives (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</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" original="uwhr-10q_20220331.htm">uwhr-10q_20220331.htm</File>
    <File>uwhr-20220331.xsd</File>
    <File>uwhr-20220331_cal.xml</File>
    <File>uwhr-20220331_def.xml</File>
    <File>uwhr-20220331_lab.xml</File>
    <File>uwhr-20220331_pre.xml</File>
    <File>uwhr-ex311_7.htm</File>
    <File>uwhr-ex312_8.htm</File>
    <File>uwhr-ex32_6.htm</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="1210">http://fasb.org/us-gaap/2021-01-31</BaseTaxonomy>
    <BaseTaxonomy items="27">http://xbrl.sec.gov/dei/2021q4</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
