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        <entity>
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        <period>
            <startDate>2026-10-01</startDate>
            <endDate>2026-10-01</endDate>
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    <context id="offrl_1">
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            <startDate>2026-10-01</startDate>
            <endDate>2026-10-01</endDate>
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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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    <unit id="Shares">
        <measure>shares</measure>
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    <ffd:FormTp contextRef="rc" id="ixv-189">S-8</ffd:FormTp>
    <ffd:SubmissnTp contextRef="rc" id="ixv-190">S-8</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="rc" id="ixv-191">EX-FILING FEES</ffd:FeeExhibitTp>
    <dei:EntityCentralIndexKey contextRef="rc" id="ixv-192">0000002098</dei:EntityCentralIndexKey>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-193">ACME UNITED CORP</dei:EntityRegistrantName>
    <ffd:OfferingTableNa contextRef="rc" id="hiddenrcOfferingTableNa" xsi:nil="true"/>
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    <dei:EntityRegistrantName contextRef="rc" id="ixv-232">ACME UNITED CORP</dei:EntityRegistrantName>
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    <ffd:OfferingSctyTitl contextRef="offrl_1" id="ixv-234">Employee Plan</ffd:OfferingSctyTitl>
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      contextRef="offrl_1"
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      id="ixv-236"
      unitRef="Shares">150875</ffd:AmtSctiesRegd>
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      contextRef="offrl_1"
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      contextRef="offrl_1"
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      unitRef="USD">786.25</ffd:FeeAmt>
    <ffd:OfferingSctyTp contextRef="offrl_2" id="ixv-241">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_2" id="ixv-242">Common Stock, par value $2.50 per share</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg contextRef="offrl_2" id="ixv-243">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="offrl_2"
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      id="ixv-244"
      unitRef="Shares">49125</ffd:AmtSctiesRegd>
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      contextRef="offrl_2"
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      id="ixv-245"
      unitRef="USD">62.77</ffd:MaxOfferingPricPerScty>
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      contextRef="offrl_2"
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      contextRef="offrl_2"
      decimals="6"
      id="ixv-247"
      unitRef="pure">0.000087</ffd:FeeRate>
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      contextRef="offrl_2"
      decimals="2"
      id="ixv-248"
      unitRef="USD">268.27</ffd:FeeAmt>
    <ffd:TtlOfferingAmt contextRef="rc" decimals="2" id="ixv-249" unitRef="USD">12120988.75</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt contextRef="rc" decimals="2" id="ixv-250" unitRef="USD">1054.52</ffd:TtlFeeAmt>
    <ffd:TtlOffsetAmt contextRef="rc" decimals="2" id="ixv-251" unitRef="USD">0.00</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt contextRef="rc" decimals="2" id="ixv-252" unitRef="USD">1054.52</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="offrl_1" id="ixv-253">(1) Pursuant to Rule 416 under the Securities Act of 1933 (the "Securities Act"), this Registration Statement covers, in addition to the number of shares stated herein, an indeterminate amount of additional shares of the Company's common stock, par value $2.50 per share (the "Common Stock"), that may become issuable pursuant to the anti-dilution or other adjustment provisions of the Acme United Corporation 2022 Employee Stock Option Plan (the "Employee Plan").
(2) Determined pursuant to 457(h)(1) under the Securities Act, based upon the exercise price of the options.
(4) Consisting of shares of Common Stock issuable upon exercise of options which have been granted under the Employee Plan.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_2" id="ixv-254">(1) Pursuant to Rule 416 under the Securities Act of 1933 (the "Securities Act"), this Registration Statement covers, in addition to the number of shares stated herein, an indeterminate amount of additional shares of the Company's common stock, par value $2.50 per share (the "Common Stock"), that may become issuable pursuant to the anti-dilution or other adjustment provisions of the Acme United Corporation 2022 Employee Stock Option Plan (the "Employee Plan").
(3) Estimated pursuant to Rules 457 (c) and 457 (h)(1) under the Securities Act, solely for the purpose of calculating the registration fee, based upon the average of the high and low prices for shares of the Common Stock reported on the NYSE American on September 25, 2026.
(5) Consisting of shares of Common Stock issuable upon exercise of options which may be granted under the Employee Plan.
</ffd:OfferingNote>
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