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        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000039311</identifier>
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        <period>
            <startDate>2026-05-01</startDate>
            <endDate>2026-05-01</endDate>
        </period>
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        <entity>
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        <period>
            <startDate>2026-05-01</startDate>
            <endDate>2026-05-01</endDate>
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    <unit id="shares">
        <measure>shares</measure>
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    <unit id="usd">
        <measure>iso4217:USD</measure>
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    <unit id="pure">
        <measure>pure</measure>
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            <unitNumerator>
                <measure>iso4217:USD</measure>
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                <measure>shares</measure>
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    <ffd:SubmissnTp contextRef="c0" id="ixv-134">S-4</ffd:SubmissnTp>
    <ffd:FormTp contextRef="c0" id="ixv-135">S-4</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="c0" id="ixv-23">INDEPENDENT BANK CORPORATION</dei:EntityRegistrantName>
    <ffd:PrevslyPdFlg contextRef="c1" id="ixv-136">false</ffd:PrevslyPdFlg>
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    <ffd:FeesOthrRuleFlg contextRef="c1" id="ixv-139">true</ffd:FeesOthrRuleFlg>
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    <ffd:AmtSctiesRegd
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      decimals="INF"
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      unitRef="shares">1590000</ffd:AmtSctiesRegd>
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    <ffd:OfferingNote contextRef="c1" id="ixv-110">&lt;table style="border-spacing: 0px; border-collapse: collapse; width: 100%; font-size: 10pt;"&gt; &lt;tr style="height: 0px; font-size: 0px;"&gt;&lt;td style="width: 1%;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 99%;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="vertical-align: top;"&gt; &lt;td style="padding: 0px 0pt;"&gt; &lt;div style="margin-bottom: 4pt;"&gt; (1) &lt;/div&gt; &lt;/td&gt; &lt;td style="padding: 0px 5.4pt; text-align: left;"&gt; &lt;div style="margin-bottom: 4pt;"&gt; Represents the maximum number of shares of Independent Bank Corporation common stock that may be issued upon the completion of the Merger described in this registration statement. &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;table style="border-spacing: 0px; border-collapse: collapse; width: 100%; font-size: 10pt;"&gt; &lt;tr style="height: 0px; font-size: 0px;"&gt;&lt;td style="width: 1%;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 99%;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="vertical-align: top;"&gt; &lt;td style="padding: 0px 0pt;"&gt; &lt;div style="margin-bottom: 4pt;"&gt; (2) &lt;/div&gt; &lt;/td&gt; &lt;td style="padding: 0px 5.4pt; text-align: left;"&gt; &lt;div style="margin-bottom: 4pt;"&gt; Estimated solely for the purpose of calculating the registration fee in accordance with Rule 457(f)(1) and Rule 457(c) under the Securities Act. The proposed maximum aggregate offering price of
$68,780,000.00
was calculated by multiplying (i) 1,000,000, the estimated maximum number of shares of HCB Financial Corp. common stock to be exchanged or cancelled upon completion of the Merger, by (ii) $68.78, the average of the high and low sales prices for shares of HCB Financial Corp. common stock as reported on the OTCID market on April 24, 2026, which date is within five business days prior to the date of filing this registration statement. &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</ffd:OfferingNote>
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    <ffd:AmtSctiesRcvd
      contextRef="c1"
      decimals="INF"
      id="ixv-152"
      unitRef="shares">1000000</ffd:AmtSctiesRcvd>
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      contextRef="c1"
      decimals="INF"
      id="ixv-153"
      unitRef="usdPershares">68.78</ffd:ValSctiesRcvdPerShr>
    <ffd:CombinedProspectusTableNa contextRef="c0" id="ixv-156">N/A</ffd:CombinedProspectusTableNa>
    <dei:EntityCentralIndexKey contextRef="c0" id="ixv-157">0000039311</dei:EntityCentralIndexKey>
    <ffd:FeeExhibitTp contextRef="c0" id="ixv-158">EX-FILING FEES</ffd:FeeExhibitTp>
    <ffd:OffsetTableNa contextRef="c0" id="ixv-159">N/A</ffd:OffsetTableNa>
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