<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.23.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>419</ContextCount>
  <ElementCount>548</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>71</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>7</UnitCount>
  <MyReports>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0000001 - Document - Cover Page</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/CoverPage</Role>
      <ShortName>Cover Page</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>0000002 - Document - Audit Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/AuditInformation</Role>
      <ShortName>Audit Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>0000003 - Statement - Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/ConsolidatedBalanceSheets</Role>
      <ShortName>Consolidated Balance Sheets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>0000004 - Statement - Consolidated Balance Sheets - Parenthetical</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/ConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>Consolidated Balance Sheets - Parenthetical</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>0000005 - Statement - Consolidated Statements of Income</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/ConsolidatedStatementsofIncome</Role>
      <ShortName>Consolidated Statements of Income</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>0000006 - Statement - Consolidated Statements of Income - Parenthetical</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/ConsolidatedStatementsofIncomeParenthetical</Role>
      <ShortName>Consolidated Statements of Income - Parenthetical</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>0000007 - Statement - Consolidated Statements of Comprehensive Loss</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/ConsolidatedStatementsofComprehensiveLoss</Role>
      <ShortName>Consolidated Statements of Comprehensive Loss</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>0000008 - Statement - Consolidated Statements of Comprehensive Loss - Parenthetical</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/ConsolidatedStatementsofComprehensiveLossParenthetical</Role>
      <ShortName>Consolidated Statements of Comprehensive Loss - Parenthetical</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>0000009 - Statement - Consolidated Statements of Stockholders' Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/ConsolidatedStatementsofStockholdersEquity</Role>
      <ShortName>Consolidated Statements of Stockholders' Equity</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>0000010 - Statement - Consolidated Statements of Stockholders' Equity - Parenthetical</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/ConsolidatedStatementsofStockholdersEquityParenthetical</Role>
      <ShortName>Consolidated Statements of Stockholders' Equity - Parenthetical</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>0000011 - Statement - Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/ConsolidatedStatementsofCashFlows</Role>
      <ShortName>Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>0000012 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/NatureofOperationsandSummaryofSignificantAccountingPolicies</Role>
      <ShortName>Nature of Operations and Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>0000013 - Disclosure - Accounting Pronouncements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/AccountingPronouncements</Role>
      <ShortName>Accounting Pronouncements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>0000014 - Disclosure - Restriction on Cash and Due From Banks</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/RestrictiononCashandDueFromBanks</Role>
      <ShortName>Restriction on Cash and Due From Banks</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>0000015 - Disclosure - Investment Securities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/InvestmentSecurities</Role>
      <ShortName>Investment Securities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>0000016 - Disclosure - Loans, Leases and Allowance</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LoansLeasesandAllowance</Role>
      <ShortName>Loans, Leases and Allowance</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>0000017 - Disclosure - Premises and Equipment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/PremisesandEquipment</Role>
      <ShortName>Premises and Equipment</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>0000018 - Disclosure - Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/Leases</Role>
      <ShortName>Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>0000019 - Disclosure - Loan Servicing</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LoanServicing</Role>
      <ShortName>Loan Servicing</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>0000020 - Disclosure - Deposits</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/Deposits</Role>
      <ShortName>Deposits</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>0000021 - Disclosure - Federal Home Loan Bank Advances</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/FederalHomeLoanBankAdvances</Role>
      <ShortName>Federal Home Loan Bank Advances</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>0000022 - Disclosure - Income Tax</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/IncomeTax</Role>
      <ShortName>Income Tax</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>0000023 - Disclosure - Accumulated Other Comprehensive Loss</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/AccumulatedOtherComprehensiveLoss</Role>
      <ShortName>Accumulated Other Comprehensive Loss</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>0000024 - Disclosure - Commitments and Contingent Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/CommitmentsandContingentLiabilities</Role>
      <ShortName>Commitments and Contingent Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>0000025 - Disclosure - Benefit Plans</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/BenefitPlans</Role>
      <ShortName>Benefit Plans</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>0000026 - Disclosure - Earnings Per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/EarningsPerShare</Role>
      <ShortName>Earnings Per Share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>0000027 - Disclosure - Dividend and Capital Restrictions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/DividendandCapitalRestrictions</Role>
      <ShortName>Dividend and Capital Restrictions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>0000028 - Disclosure - Regulatory Capital</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/RegulatoryCapital</Role>
      <ShortName>Regulatory Capital</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>0000029 - Disclosure - Related Party Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/RelatedPartyTransactions</Role>
      <ShortName>Related Party Transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>0000030 - Disclosure - Fair Values of Financial Instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/FairValuesofFinancialInstruments</Role>
      <ShortName>Fair Values of Financial Instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>0000031 - Disclosure - Condensed Financial Information (Parent Company Only)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/CondensedFinancialInformationParentCompanyOnly</Role>
      <ShortName>Condensed Financial Information (Parent Company Only)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>0000032 - Disclosure - Significant Estimates and Concentrations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/SignificantEstimatesandConcentrations</Role>
      <ShortName>Significant Estimates and Concentrations</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>0000033 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/SubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>33</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>0000034 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/NatureofOperationsandSummaryofSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Nature of Operations and Summary of Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/NatureofOperationsandSummaryofSignificantAccountingPolicies</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>0000035 - Disclosure - Investment Securities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/InvestmentSecuritiesTables</Role>
      <ShortName>Investment Securities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/InvestmentSecurities</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>0000036 - Disclosure - Loans, Leases and Allowance (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LoansLeasesandAllowanceTables</Role>
      <ShortName>Loans, Leases and Allowance (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/LoansLeasesandAllowance</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>0000037 - Disclosure - Premises and Equipment (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/PremisesandEquipmentTables</Role>
      <ShortName>Premises and Equipment (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/PremisesandEquipment</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>0000038 - Disclosure - Leases (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LeasesTables</Role>
      <ShortName>Leases (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/Leases</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>0000039 - Disclosure - Loan Servicing (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LoanServicingTables</Role>
      <ShortName>Loan Servicing (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/LoanServicing</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>0000040 - Disclosure - Deposits (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/DepositsTables</Role>
      <ShortName>Deposits (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/Deposits</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>0000041 - Disclosure - Federal Home Loan Bank Advances (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/FederalHomeLoanBankAdvancesTables</Role>
      <ShortName>Federal Home Loan Bank Advances (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/FederalHomeLoanBankAdvances</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>0000042 - Disclosure - Income Tax (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/IncomeTaxTables</Role>
      <ShortName>Income Tax (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/IncomeTax</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>0000043 - Disclosure - Accumulated Other Comprehensive Loss (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/AccumulatedOtherComprehensiveLossTables</Role>
      <ShortName>Accumulated Other Comprehensive Loss (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/AccumulatedOtherComprehensiveLoss</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>0000044 - Disclosure - Commitments and Contingent Liabilities- Schedule of Line of Credit Facilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/CommitmentsandContingentLiabilitiesScheduleofLineofCreditFacilitiesTables</Role>
      <ShortName>Commitments and Contingent Liabilities- Schedule of Line of Credit Facilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>0000045 - Disclosure - Benefit Plans (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/BenefitPlansTables</Role>
      <ShortName>Benefit Plans (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/BenefitPlans</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>0000046 - Disclosure - Earnings Per Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/EarningsPerShareTables</Role>
      <ShortName>Earnings Per Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/EarningsPerShare</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>0000047 - Disclosure - Regulatory Capital (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/RegulatoryCapitalTables</Role>
      <ShortName>Regulatory Capital (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/RegulatoryCapital</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>0000048 - Disclosure - Related Party Transactions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/RelatedPartyTransactionsTables</Role>
      <ShortName>Related Party Transactions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/RelatedPartyTransactions</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>0000049 - Disclosure - Fair Values of Financial Instruments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/FairValuesofFinancialInstrumentsTables</Role>
      <ShortName>Fair Values of Financial Instruments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/FairValuesofFinancialInstruments</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>0000050 - Disclosure - Condensed Financial Information (Parent Company Only) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/CondensedFinancialInformationParentCompanyOnlyTables</Role>
      <ShortName>Condensed Financial Information (Parent Company Only) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/CondensedFinancialInformationParentCompanyOnly</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>0000051 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/NatureofOperationsandSummaryofSignificantAccountingPoliciesDetails</Role>
      <ShortName>Nature of Operations and Summary of Significant Accounting Policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/NatureofOperationsandSummaryofSignificantAccountingPoliciesPolicies</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>0000052 - Disclosure - Accounting Pronouncements (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/AccountingPronouncementsDetails</Role>
      <ShortName>Accounting Pronouncements (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/AccountingPronouncements</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>0000053 - Disclosure - Restriction on Cash and Due From Banks (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/RestrictiononCashandDueFromBanksDetails</Role>
      <ShortName>Restriction on Cash and Due From Banks (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/RestrictiononCashandDueFromBanks</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>0000054 - Disclosure - Investment Securities-Marketable Securities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/InvestmentSecuritiesMarketableSecuritiesDetails</Role>
      <ShortName>Investment Securities-Marketable Securities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>0000055 - Disclosure - Investment Securities-Investments Classified by Contractual Maturity Date (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/InvestmentSecuritiesInvestmentsClassifiedbyContractualMaturityDateDetails</Role>
      <ShortName>Investment Securities-Investments Classified by Contractual Maturity Date (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>0000056 - Disclosure - Investment Securities-Marketable Securities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/InvestmentSecuritiesMarketableSecuritiesDetails_1</Role>
      <ShortName>Investment Securities-Marketable Securities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>0000057 - Disclosure - Investment Securities-Unrealized Gain (Loss) on Investments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/InvestmentSecuritiesUnrealizedGainLossonInvestmentsDetails</Role>
      <ShortName>Investment Securities-Unrealized Gain (Loss) on Investments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>0000058 - Disclosure - Loans, Leases and Allowance - Schedule of Accounts, Notes, Loans and Financing Receivable (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LoansLeasesandAllowanceScheduleofAccountsNotesLoansandFinancingReceivableDetails</Role>
      <ShortName>Loans, Leases and Allowance - Schedule of Accounts, Notes, Loans and Financing Receivable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>0000059 - Disclosure - Loans, Leases and Allowance - Financing Receivable, Allowance for Credit Loss (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LoansLeasesandAllowanceFinancingReceivableAllowanceforCreditLossDetails</Role>
      <ShortName>Loans, Leases and Allowance - Financing Receivable, Allowance for Credit Loss (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>0000060 - Disclosure - Loans, Leases and Allowance - Financing Receivable Credit Quality Indicators (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LoansLeasesandAllowanceFinancingReceivableCreditQualityIndicatorsDetails</Role>
      <ShortName>Loans, Leases and Allowance - Financing Receivable Credit Quality Indicators (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>0000061 - Disclosure - Loans, Leases and Allowance - Schedule of Loans Classified by Aging Analysis (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LoansLeasesandAllowanceScheduleofLoansClassifiedbyAgingAnalysisDetails</Role>
      <ShortName>Loans, Leases and Allowance - Schedule of Loans Classified by Aging Analysis (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>0000062 - Disclosure - Loans, Leases and Allowance - Impaired Financing Receivables (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LoansLeasesandAllowanceImpairedFinancingReceivablesDetails</Role>
      <ShortName>Loans, Leases and Allowance - Impaired Financing Receivables (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>0000063 - Disclosure - Loans, Leases and Allowance - Financing Receivable, Nonaccrual (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LoansLeasesandAllowanceFinancingReceivableNonaccrualDetails</Role>
      <ShortName>Loans, Leases and Allowance - Financing Receivable, Nonaccrual (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>0000064 - Disclosure - Loans, Leases and Allowance - Real Estate Owned and Foreclosed Real Estate Policy (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LoansLeasesandAllowanceRealEstateOwnedandForeclosedRealEstatePolicyDetails</Role>
      <ShortName>Loans, Leases and Allowance - Real Estate Owned and Foreclosed Real Estate Policy (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>0000065 - Disclosure - Loans, Leases and Allowance - Direct Financing Lease, Lease Income (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LoansLeasesandAllowanceDirectFinancingLeaseLeaseIncomeDetails</Role>
      <ShortName>Loans, Leases and Allowance - Direct Financing Lease, Lease Income (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>0000066 - Disclosure - Loans, Leases and Allowance - Schedule of Future Minimum Lease Payments for Capital Leases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LoansLeasesandAllowanceScheduleofFutureMinimumLeasePaymentsforCapitalLeasesDetails</Role>
      <ShortName>Loans, Leases and Allowance - Schedule of Future Minimum Lease Payments for Capital Leases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>0000067 - Disclosure - Premises and Equipment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/PremisesandEquipmentDetails</Role>
      <ShortName>Premises and Equipment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/PremisesandEquipmentTables</ParentRole>
      <Position>67</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>0000068 - Disclosure - Leases - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LeasesNarrativeDetails</Role>
      <ShortName>Leases - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>0000069 - Disclosure - Leases - Schedule of Supplemental Balance Sheet Related To Leases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LeasesScheduleofSupplementalBalanceSheetRelatedToLeasesDetails</Role>
      <ShortName>Leases - Schedule of Supplemental Balance Sheet Related To Leases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>69</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>0000070 - Disclosure - Leases - Schedule of Components of Lease Expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LeasesScheduleofComponentsofLeaseExpenseDetails</Role>
      <ShortName>Leases - Schedule of Components of Lease Expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>0000071 - Disclosure - Leases - Schedule Of Maturities Of Lease Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LeasesScheduleOfMaturitiesOfLeaseLiabilitiesDetails</Role>
      <ShortName>Leases - Schedule Of Maturities Of Lease Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>0000072 - Disclosure - Loan Servicing- Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LoanServicingNarrativeDetails</Role>
      <ShortName>Loan Servicing- Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>0000073 - Disclosure - Loan Servicing- Schedule of Servicing Assets at Fair Value (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/LoanServicingScheduleofServicingAssetsatFairValueDetails</Role>
      <ShortName>Loan Servicing- Schedule of Servicing Assets at Fair Value (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>0000074 - Disclosure - Deposits- Deposit Liabilities, Type (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/DepositsDepositLiabilitiesTypeDetails</Role>
      <ShortName>Deposits- Deposit Liabilities, Type (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>0000075 - Disclosure - Deposits- Time Deposit Maturities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/DepositsTimeDepositMaturitiesDetails</Role>
      <ShortName>Deposits- Time Deposit Maturities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>75</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>0000076 - Disclosure - Federal Home Loan Bank Advances-Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/FederalHomeLoanBankAdvancesNarrativeDetails</Role>
      <ShortName>Federal Home Loan Bank Advances-Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>76</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>0000077 - Disclosure - Federal Home Loan Bank Advances- Federal Home Loan Bank, Advances (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/FederalHomeLoanBankAdvancesFederalHomeLoanBankAdvancesDetails</Role>
      <ShortName>Federal Home Loan Bank Advances- Federal Home Loan Bank, Advances (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>77</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>0000078 - Disclosure - Income Tax-Schedule of Effective Income Tax Rate Reconciliation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/IncomeTaxScheduleofEffectiveIncomeTaxRateReconciliationDetails</Role>
      <ShortName>Income Tax-Schedule of Effective Income Tax Rate Reconciliation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>78</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>0000079 - Disclosure - Income Tax-Schedule of Deferred Tax Assets and Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/IncomeTaxScheduleofDeferredTaxAssetsandLiabilitiesDetails</Role>
      <ShortName>Income Tax-Schedule of Deferred Tax Assets and Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>79</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>0000080 - Disclosure - Income Tax- Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/IncomeTaxNarrativeDetails</Role>
      <ShortName>Income Tax- Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>80</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>0000081 - Disclosure - Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Loss (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/AccumulatedOtherComprehensiveLossScheduleofAccumulatedOtherComprehensiveLossDetails</Role>
      <ShortName>Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Loss (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>81</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>0000082 - Disclosure - Commitments and Contingent Liabilities- Schedule of Line of Credit Facilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/CommitmentsandContingentLiabilitiesScheduleofLineofCreditFacilitiesDetails</Role>
      <ShortName>Commitments and Contingent Liabilities- Schedule of Line of Credit Facilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/CommitmentsandContingentLiabilitiesScheduleofLineofCreditFacilitiesTables</ParentRole>
      <Position>82</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>0000083 - Disclosure - Benefit Plans- Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/BenefitPlansNarrativeDetails</Role>
      <ShortName>Benefit Plans- Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>83</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>0000084 - Disclosure - Benefit Plans- Employee Stock Ownership Plan (ESOP) Disclosures (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/BenefitPlansEmployeeStockOwnershipPlanESOPDisclosuresDetails</Role>
      <ShortName>Benefit Plans- Employee Stock Ownership Plan (ESOP) Disclosures (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>84</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>0000085 - Disclosure - Benefit Plans- Restricted Stock (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/BenefitPlansRestrictedStockDetails</Role>
      <ShortName>Benefit Plans- Restricted Stock (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>85</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>0000086 - Disclosure - Benefit Plans- Stock Option Activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/BenefitPlansStockOptionActivityDetails</Role>
      <ShortName>Benefit Plans- Stock Option Activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>86</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>0000087 - Disclosure - Benefit Plans- Assumptions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/BenefitPlansAssumptionsDetails</Role>
      <ShortName>Benefit Plans- Assumptions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>87</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>0000088 - Disclosure - Benefit Plans- Stock Option Status (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/BenefitPlansStockOptionStatusDetails</Role>
      <ShortName>Benefit Plans- Stock Option Status (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>88</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>0000089 - Disclosure - Earnings Per Share- Schedule of Earnings Per Share, Basic and Diluted (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/EarningsPerShareScheduleofEarningsPerShareBasicandDilutedDetails</Role>
      <ShortName>Earnings Per Share- Schedule of Earnings Per Share, Basic and Diluted (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>89</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>0000090 - Disclosure - Regulatory Capital (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/RegulatoryCapitalDetails</Role>
      <ShortName>Regulatory Capital (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/RegulatoryCapitalTables</ParentRole>
      <Position>90</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>0000091 - Disclosure - Related Party Transactions- Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/RelatedPartyTransactionsNarrativeDetails</Role>
      <ShortName>Related Party Transactions- Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>91</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>0000092 - Disclosure - Related Party Transactions-Schedule of Related Party Transactions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/RelatedPartyTransactionsScheduleofRelatedPartyTransactionsDetails</Role>
      <ShortName>Related Party Transactions-Schedule of Related Party Transactions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>92</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>0000093 - Disclosure - Fair Values of Financial Instruments- Fair Value, Assets Measured on Recurring Basis (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/FairValuesofFinancialInstrumentsFairValueAssetsMeasuredonRecurringBasisDetails</Role>
      <ShortName>Fair Values of Financial Instruments- Fair Value, Assets Measured on Recurring Basis (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>93</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>0000094 - Disclosure - Fair Values of Financial Instruments-Fair Value Measurements, Nonrecurring (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/FairValuesofFinancialInstrumentsFairValueMeasurementsNonrecurringDetails</Role>
      <ShortName>Fair Values of Financial Instruments-Fair Value Measurements, Nonrecurring (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>94</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>0000095 - Disclosure - Fair Values of Financial Instruments-Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/FairValuesofFinancialInstrumentsFairValueAssetsMeasuredonRecurringBasisUnobservableInputReconciliationDetails</Role>
      <ShortName>Fair Values of Financial Instruments-Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>95</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R96.htm</HtmlFileName>
      <LongName>0000096 - Disclosure - Fair Values of Financial Instruments- Schedule of Fair Value of Financial Instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/FairValuesofFinancialInstrumentsScheduleofFairValueofFinancialInstrumentsDetails</Role>
      <ShortName>Fair Values of Financial Instruments- Schedule of Fair Value of Financial Instruments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>96</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>0000097 - Disclosure - Condensed Financial Information (Parent Company Only) - Condensed Balance Sheet (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/CondensedFinancialInformationParentCompanyOnlyCondensedBalanceSheetDetails</Role>
      <ShortName>Condensed Financial Information (Parent Company Only) - Condensed Balance Sheet (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/CondensedFinancialInformationParentCompanyOnlyTables</ParentRole>
      <Position>97</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>0000098 - Disclosure - Condensed Financial Information (Parent Company Only) - Condensed Statements of Income and Comprehensive (Loss) Income (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/CondensedFinancialInformationParentCompanyOnlyCondensedStatementsofIncomeandComprehensiveLossIncomeDetails</Role>
      <ShortName>Condensed Financial Information (Parent Company Only) - Condensed Statements of Income and Comprehensive (Loss) Income (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/CondensedFinancialInformationParentCompanyOnlyTables</ParentRole>
      <Position>98</Position>
    </Report>
    <Report instance="fil-20221231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R99.htm</HtmlFileName>
      <LongName>0000099 - Disclosure - Condensed Financial Information (Parent Company Only) - Condensed Cash Flow Statement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://ErrorHyperlinkreferencenotvalid/20191231/role/CondensedFinancialInformationParentCompanyOnlyCondensedCashFlowStatementDetails</Role>
      <ShortName>Condensed Financial Information (Parent Company Only) - Condensed Cash Flow Statement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://ErrorHyperlinkreferencenotvalid/20191231/role/CondensedFinancialInformationParentCompanyOnlyTables</ParentRole>
      <Position>99</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <Logs>
    <Log type="Warning">[dq-0542-Deprecated-Concept] Concept DueFromRelatedParties in us-gaap/2022 used in 2 facts was deprecated in us-gaap/2023 as of 2023 and should not be used. fil-20221231.htm 4</Log>
    <Log type="Warning">[ix-0514-Hidden-Fact-Eligible-For-Transform] WARN: 1 fact(s) appearing in ix:hidden were eligible for transformation: us-gaap:LesseeOperatingLeaseTermOfContract -  fil-20221231.htm 4</Log>
  </Logs>
  <InputFiles>
    <File doctype="10-K" original="fil-20221231.htm">fil-20221231.htm</File>
    <File>fil-20221231.xsd</File>
    <File>fil-20221231_cal.xml</File>
    <File>fil-20221231_def.xml</File>
    <File>fil-20221231_lab.xml</File>
    <File>fil-20221231_pre.xml</File>
    <File>rmbi-20221231x10kexx21.htm</File>
    <File>rmbi-20221231x10kexx23.htm</File>
    <File>rmbi-20221231x10kexx311.htm</File>
    <File>rmbi-20221231x10kexx312.htm</File>
    <File>rmbi-20221231x10kexx32.htm</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="3">http://fasb.org/srt/2022</BaseTaxonomy>
    <BaseTaxonomy items="1618">http://fasb.org/us-gaap/2022</BaseTaxonomy>
    <BaseTaxonomy items="38">http://xbrl.sec.gov/dei/2022</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
