<SEC-DOCUMENT>0001140361-24-005543.txt : 20240205
<SEC-HEADER>0001140361-24-005543.hdr.sgml : 20240205
<ACCEPTANCE-DATETIME>20240205080948
ACCESSION NUMBER:		0001140361-24-005543
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		17
CONFORMED PERIOD OF REPORT:	20240205
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20240205
DATE AS OF CHANGE:		20240205

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Quantum-Si Inc
		CENTRAL INDEX KEY:			0001816431
		STANDARD INDUSTRIAL CLASSIFICATION:	MEASURING & CONTROLLING DEVICES, NEC [3829]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		IRS NUMBER:				851388175
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39486
		FILM NUMBER:		24594005

	BUSINESS ADDRESS:	
		STREET 1:		29 BUSINESS PARK DRIVE
		CITY:			BRANFORD
		STATE:			CT
		ZIP:			06405
		BUSINESS PHONE:		(203) 458-7100

	MAIL ADDRESS:	
		STREET 1:		29 BUSINESS PARK DRIVE
		CITY:			BRANFORD
		STATE:			CT
		ZIP:			06405

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HighCape Capital Acquisition Corp.
		DATE OF NAME CHANGE:	20200629
</SEC-HEADER>
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    <div style="text-align: center; font-family: 'Times New Roman'; font-size: 14pt; font-weight: bold;">UNITED STATES</div>

    <div style="text-align: center; font-family: 'Times New Roman'; font-size: 14pt; font-weight: bold;">SECURITIES AND EXCHANGE COMMISSION</div>

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    <td style="width: 2%; vertical-align: top; font-size: 10pt;">&#160;</td>

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    <div style="text-align: center; font-family: 'Times New Roman'; font-size: 10pt;">Registrant&#8217;s telephone number, including area code: <span style="font-family: 'Times New Roman'; font-weight: bold;">(<ix:nonNumeric name="dei:CityAreaCode" id="Fact_dbb1fbe8796b483ba8c5cb9bc88c0823" contextRef="c20240205to20240205">866</ix:nonNumeric>) <ix:nonNumeric name="dei:LocalPhoneNumber" id="Fact_09481c087845403a8da15e5e445aac48" contextRef="c20240205to20240205">688-7374</ix:nonNumeric></span></div>

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    <div style="text-align: center; font-family: 'Times New Roman'; font-size: 10pt; font-weight: bold;">N/A</div>

    <div style="text-align: center; font-family: 'Times New Roman'; font-size: 10pt;">(Former name or former address, if changed since last report)</div>

    <div style="font-size: 10pt;">&#160;</div>

    <div style="text-align: justify; font-family: 'Times New Roman'; font-size: 10pt;">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following
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            <div style="font-family: 'Times New Roman';">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</div>
          </td>

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            <div style="font-family: 'Times New Roman';">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</div>
          </td>

  </tr>


</table>
    <div style="font-size: 10pt;">&#160;</div>

    <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt;">Securities registered pursuant to Section 12(b) of the Act:</div>

    <div style="font-size: 10pt;">&#160;</div>

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            <div style="text-align: center; font-family: 'Times New Roman'; font-weight: bold;">Title of each class</div>
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    <td style="width: 2%; vertical-align: bottom; font-size: 10pt;">&#160;</td>

    <td style="width: 25.82%; vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0); font-size: 10pt;">
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    <td style="width: 2.16%; vertical-align: bottom; font-size: 10pt;">&#160;</td>

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    <td style="width: 40%; vertical-align: top; font-size: 10pt;">
            <div style="text-align: left; font-family: 'Times New Roman';"><ix:nonNumeric name="dei:Security12bTitle" id="Fact_b4a10496d53342da807e897bf5ca71e1" contextRef="c20240205to20240205_StatementClassOfStockAxis_CommonClassAMember">Class A common stock, par value $0.0001 per share</ix:nonNumeric><br/>
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    <td style="width: 2%; vertical-align: top; font-size: 10pt;">&#160;</td>

    <td style="width: 25.82%; vertical-align: top; font-size: 10pt;">
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    <td style="width: 2.16%; vertical-align: top; font-size: 10pt;">&#160;</td>

    <td style="width: 30.34%; vertical-align: top; font-size: 10pt;">
            <div style="text-align: left; font-family: 'Times New Roman';"><span style="-sec-ix-hidden:Fact_7773dc04b2bd4ebaaab5a728e74db6aa">The Nasdaq Stock Market LLC</span><br/>
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  </tr>

  <tr>

    <td style="width: 40%; vertical-align: top; font-size: 10pt;">
            <div style="text-align: left; font-family: 'Times New Roman';"><ix:nonNumeric name="dei:Security12bTitle" id="Fact_b72b4e308d4f436da42fb46f60b35128" contextRef="c20240205to20240205_StatementClassOfStockAxis_RedeemableWarrantsEachWholeWarrantExercisableForOneShareOfClassACommonStockEachAtAnExercisePriceOf1150PerShareMember">Redeemable warrants, each whole warrant exercisable for one share of Class A common stock, each at an exercise price of $11.50 per share</ix:nonNumeric><br/>
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    <td style="width: 2%; vertical-align: top; font-size: 10pt;">&#160;</td>

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    <td style="width: 2.16%; vertical-align: top; font-size: 10pt;">&#160;</td>

    <td style="width: 30.34%; vertical-align: top; font-size: 10pt;">
            <div style="text-align: left; font-family: 'Times New Roman';"><span style="-sec-ix-hidden:Fact_40f4c99f36df43fc831a90876c0776d5">The Nasdaq Stock Market LLC </span><br/>
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          </td>

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    <div style="font-size: 10pt;"><br/>
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    <div style="text-align: justify; font-family: 'Times New Roman'; font-size: 10pt;">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (&#167;230.405 of this chapter) or Rule 12b-2
      of the Securities Exchange Act of 1934 (&#167;240.12b-2 of this chapter).</div>

    <div style="font-size: 10pt;">&#160;</div>

    <div style="text-align: right;"><span style="font-size: 10pt; font-family: 'Times New Roman';">Emerging growth company</span><span style="font-size: 10pt;">&#160; <ix:nonNumeric name="dei:EntityEmergingGrowthCompany" id="Fact_e1590955d0f94a418232d4c87a7ea746" contextRef="c20240205to20240205" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></span></div>

    <div style="font-size: 10pt;">&#160;</div>

    <div style="text-align: justify; font-family: 'Times New Roman'; font-size: 10pt;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised
      financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.&#160; &#9744;</div>

    <div style="text-align: left; font-size: 10pt;">
<div><br/></div>

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    <td style="width: auto; vertical-align: top; text-align: left; font-size: 10pt;">
            <div style="color: rgb(0, 0, 0); font-family: 'Times New Roman'; font-weight: bold;">Regulation FD Disclosure.</div>
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      <div style="font-size: 10pt;">&#160;</div>

      <div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">On February 5, 2024, Quantum-Si Incorporated (the &#8220;Company&#8221;) issued the press release furnished as Exhibit 99.1 to this Current Report on Form 8-K and
        incorporated herein by reference.</div>

    </div>

    <div>
      <div style="font-size: 10pt;"><br/>
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      <div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">The information in this Item 7.01 of this Current Report on Form 8-K and Exhibit 99.1 hereto shall not be deemed &#8220;filed&#8221; for purposes of Section 18 of the
        Securities Exchange Act of 1934, as amended (the &#8220;Exchange Act&#8221;), or otherwise subject to the liabilities under that Section. The information contained in this Item 7.01 and Exhibit 99.1 hereto shall not be incorporated by reference into any filing
        with the U.S. Securities and Exchange Commission made by the Company under the Securities Act of 1933, as amended, or the Exchange Act, whether made before or after the date hereof, regardless of any general incorporation language in such filing.</div>

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    <td style="width: auto; vertical-align: top; text-align: left; font-size: 10pt;">
            <div style="color: rgb(0, 0, 0); font-family: 'Times New Roman'; font-weight: bold;">Other Items.</div>
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      <div style="font-size: 10pt;"><br/>
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      <div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">On February 5, 2024, the Company announced the launch of new platform enhancements for its Platinum protein sequencing instrument, with the release of its
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      <div style="font-size: 10pt;">&#160;</div>

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    <td style="width: auto; vertical-align: top; text-align: left; font-size: 10pt;">
            <div style="font-family: 'Times New Roman'; font-weight: bold;">Financial Statements and Exhibits.</div>
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            <div style="text-align: center; font-family: 'Times New Roman'; font-size: 10pt; font-weight: bold;">Exhibit</div>
            <div style="text-align: center; font-family: 'Times New Roman'; font-size: 10pt; font-weight: bold;">No.</div>
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            <div style="text-align: justify; color: rgb(0, 0, 0); font-family: 'Times New Roman';"><a href="ef20020527_ex99-1.htm">99.1</a></div>
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    <td rowspan="1" style="width: 2%; vertical-align: top; font-size: 10pt;">&#160;</td>

    <td rowspan="1" style="width: 88%; vertical-align: top; font-size: 10pt;">
            <div style="text-align: justify; color: rgb(0, 0, 0); font-family: 'Times New Roman';">Press Release, dated February 5, 2024.</div>
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            <div style="text-align: justify; color: rgb(0, 0, 0); font-family: 'Times New Roman';">104</div>
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    <div style="text-align: center; font-family: 'Times New Roman'; font-size: 10pt; font-weight: bold;">SIGNATURES</div>

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    <div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman'; font-size: 10pt;">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the
      undersigned hereunto duly authorized.</div>

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            <div style="text-align: left; font-family: 'Times New Roman'; font-weight: bold;">QUANTUM-SI INCORPORATED</div>
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            <div style="text-align: left; font-family: 'Times New Roman';">By:</div>
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    <td style="width: 45%; vertical-align: top; border-bottom: 2px solid black; font-size: 10pt;">
            <div style="text-align: left; font-family: 'Times New Roman';">/s/ Christian LaPointe, Ph.D.</div>
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    <td style="width: 5%; vertical-align: top; font-size: 10pt;">
            <div style="text-align: left; font-family: 'Times New Roman';">Name:</div>
          </td>

    <td style="width: 45%; vertical-align: top; font-size: 10pt;">
            <div style="text-align: left; font-family: 'Times New Roman';">Christian LaPointe, Ph.D.</div>
          </td>

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            <div style="text-align: left; font-family: 'Times New Roman';">General Counsel</div>
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            <div style="text-align: left; font-family: 'Times New Roman';">Date: February 5, 2024</div>
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<TYPE>EX-99.1
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<DESCRIPTION>EXHIBIT 99.1
<TEXT>
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      <div style="text-align: right; font-family: 'Times New Roman'; font-size: 10pt; font-weight: bold;"> Exhibit 99.1<br>
      </div>
      <div style="text-align: right; font-family: 'Times New Roman'; font-size: 10pt; font-weight: bold;"> <br>
      </div>
      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt; font-weight: bold;"> <img src="image00006.jpg">
        <div><br>
        </div>
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      <div style="text-align: center; font-family: 'Times New Roman'; font-size: 10pt; font-weight: bold;">Quantum-Si Expands Proteome Coverage and Increases Sequencing Output with New Enhancements to Its Next-Generation Protein Sequencing&#8482; Platform</div>
      <div style="font-size: 10pt;">&#160;</div>
      <div style="text-align: center; font-family: 'Times New Roman'; font-size: 10pt; font-style: italic;">Addition of another amino acid recognizer combined with improvements in surface chemistry, reagents and software will offer Platinum users greater
        sequencing output and coverage per sample</div>
      <div style="font-size: 10pt;">&#160;</div>
      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt;"><font style="font-size: 10pt; font-family: 'Times New Roman'; font-weight: bold;">BRANFORD, Conn. &#8211; (BUSINESS WIRE) &#8211; February 5, 2024 --</font><font style="font-size: 10pt;">&#160;<u><font style="font-family: 'Times New Roman';">Quantum-Si Incorporated</font></u> (Nasdaq: QSI) (&#8220;Quantum-Si,&#8221; &#8220;QSI&#8221; or the &#8220;Company&#8221;), The Protein Sequencing Company&#8482;, today announced the launch of new platform enhancements for
          Platinum&#174;, with the release of its new V2 Sequencing Kits.&#160; Combined with its first-to-market, next-generation protein sequencer&#8482;, these enhancements enable:</font></div>
      <div style="font-size: 10pt;">&#160;</div>
      <div>
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                <td style="width: 18pt;">&#160;</td>
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                  <div style="font-family: 'Times New Roman'; text-align: left;">&#8226;</div>
                </td>
                <td style="text-align: left; vertical-align: top; width: auto;">
                  <div style="font-family: 'Times New Roman';">Increased sequencing performance with assay improvements, including the addition of a new amino acid recognizer;</div>
                </td>
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            <td style="width: 18pt; vertical-align: top; font-family: 'Times New Roman'; font-size: 10pt;">&#8226;</td>
            <td style="width: auto; vertical-align: top; text-align: left; font-size: 10pt;">
              <div style="font-family: 'Times New Roman';">Ability to identify unknown proteins with advanced analytical and inference tools;</div>
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            <td style="width: 18pt;">&#160;</td>
            <td style="width: 18pt; vertical-align: top; font-family: 'Times New Roman'; font-size: 10pt;">&#8226;</td>
            <td style="width: auto; vertical-align: top; text-align: left; font-size: 10pt;">
              <div style="font-family: 'Times New Roman';">High reproducibility across runs; and</div>
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            <td style="width: 18pt;">&#160;</td>
            <td style="width: 18pt; vertical-align: top; font-family: 'Times New Roman'; font-size: 10pt;">&#8226;</td>
            <td style="width: auto; vertical-align: top; text-align: left; font-size: 10pt;">
              <div style="font-family: 'Times New Roman';">Approximately a 3-fold reduction in cost per amino acid.</div>
            </td>
          </tr>

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      <div style="font-size: 10pt;">&#160;</div>
      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt;">&#8220;Our newly introduced capabilities will provide researchers with additional insights into the proteome that have the potential to unlock scientific discovery only
        possible at the level of single amino acid recognition&#8221; said Jeff Hawkins, Chief Executive Officer of Quantum-Si. &#8220;With Platinum, we are striving to make protein sequencing accessible to every lab everywhere and now, with our V2 Sequencing Kits,
        more insights are possible with greater cost efficiency so that even more scientists can easily incorporate Platinum into their workflow.&#8221;</div>
      <div style="font-size: 10pt;"><br>
      </div>
      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt;">Quantum-Si is dedicated to meeting customer needs and enhancing their user experience. The recent launch marks an expansion of the Company's current Platinum
        applications, now incorporating peptide barcodes and accommodating new sample types.</div>
      <div style="font-size: 10pt;"><br>
      </div>
      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt;">&#8220;These advancements not only ensure increased robustness and performance but also introduce novel protein inference analysis software, empowering customers to discover
        unknown proteins in their samples,&#8221; said Grace Johnston, Chief Commercial Officer of Quantum-Si.&#160; &#8220;With this launch, Quantum-Si is set to deliver unparalleled insights into protein characterization and function, catering to the evolving needs of
        our diverse customer base. Further, it reflects the value of next-generation protein sequencing as we expect that our platform will open new doors to unprecedented biologic insights and the molecules of life.&#8221;</div>
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      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt;">The company is now accepting orders for first-time and existing customers for the Protein Sequencing Kit V2.</div>
      <div style="font-size: 10pt;"><br>
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      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt;">In tandem with its recent announcement, the company&#8217;s CEO and executive team have released a video outlining recent enhancements. Jeff Hawkins will highlight the
        significance of the newly launched kits and outlines strategic initiatives for 2024. To connect with the visionaries driving the proteomics advancements, watch the video <u><font style="font-family: 'Times New Roman';">here</font></u>.</div>
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      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt;"> <br>
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      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt;">For more information on Platinum, visit <u><font style="font-family: 'Times New Roman';">quantum-si.com</font>.</u></div>
      <div style="font-size: 10pt;">&#160;</div>
      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt; font-weight: bold;">About Quantum-Si Incorporated</div>
      <div style="font-size: 10pt;">&#160;</div>
      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt;">Quantum-Si, The Protein Sequencing Company&#8482;, is focused on revolutionizing the growing field of proteomics. The Company's suite of technologies is powered by a
        first-of-its-kind semiconductor chip designed to enable next-generation single-molecule protein sequencing and digitize proteomic research in order to advance drug discovery and diagnostics beyond what has been possible with DNA sequencing. Learn
        more at <u><font style="font-family: 'Times New Roman';">quantum-si.com</font></u> or follow us on <u><font style="font-family: 'Times New Roman';">LinkedIn</font></u> or <u><font style="font-family: 'Times New Roman';">X</font> </u>(formerly
        Twitter).</div>
      <div style="font-size: 10pt;">&#160;</div>
      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt; font-weight: bold;">Forward Looking Statements</div>
      <div style="font-size: 10pt;">&#160;</div>
      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt;">This press release includes "forward-looking statements" within the meaning of the "safe harbor" provisions of the United States Private Securities Litigation Reform Act
        of 1995. The actual results of the Company may differ from its expectations, estimates, and projections and, consequently, you should not rely on these forward-looking statements as predictions of future events. Words such as "expect," "estimate,"
        "project," "budget," "forecast," "anticipate," "intend," "plan," "may," "will," "could," "should," "believes," "predicts," "potential," "continue," and similar expressions (or the negative versions of such words or expressions) are intended to
        identify such forward-looking statements. These forward-looking statements include, without limitation, the Company's expectations with respect to future performance and development and commercialization of products and services. These
        forward-looking statements involve significant risks and uncertainties that could cause the actual results to differ materially from those discussed in the forward-looking statements. Most of these factors are outside the Company's control and are
        difficult to predict. Factors that may cause such differences include, but are not limited to: the inability to maintain the listing of the Company's Class A common stock on The Nasdaq Stock Market; the ability of the Company to grow and manage
        growth profitably and retain its key employees; the Company&#8217;s ongoing leadership transitions; changes in applicable laws or regulations; the ability of the Company to raise financing in the future; the success, cost and timing of the Company's
        product development and commercialization activities; the commercialization and adoption of the Company&#8217;s existing products and the success of any product the Company may offer in the future; the potential attributes and benefits of the Company&#8217;s
        commercialized Platinum&#8482; protein sequencing instrument and kits and the Company&#8217;s other products once commercialized; the Company's ability to obtain and maintain regulatory approval for its products, and any related restrictions and limitations of
        any approved product; the Company's ability to identify, in-license or acquire additional technology; the Company's ability to maintain its existing lease, license, manufacture and supply agreements; the Company's ability to compete with other
        companies currently marketing or engaged in the development or commercialization of products and services that serve customers engaged in proteomic analysis, many of which have greater financial and marketing resources than the Company; the size
        and growth potential of the markets for the Company's products and services, and its ability to serve those markets once commercialized, either alone or in partnership with others; the Company's estimates regarding future expenses, future revenue,
        capital requirements and needs for additional financing; the Company's financial performance; and other risks and uncertainties described under "Risk Factors" in the Company&#8217;s Annual Report for the fiscal year ended December 31, 2022, and in the
        Company's other filings with the SEC. The Company cautions that the foregoing list of factors is not exclusive. The Company cautions readers not to place undue reliance upon any forward-looking statements, which speak only as of the date made. The
        Company does not undertake or accept any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements to reflect any change in its expectations or any change in events, conditions, or circumstances on
        which any such statement is based.</div>
      <div style="font-size: 10pt;">&#160;</div>
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      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt; font-weight: bold;"> <img src="image00006.jpg"></div>
      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt; font-weight: bold;"> <br>
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      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt; font-weight: bold;">Investor Contact</div>
      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt;">Jeff Keyes, Chief Financial Officer</div>
      <div style="text-align: left; color: rgb(0, 0, 0); font-family: 'Times New Roman'; font-size: 10pt;"><u>ir@quantum-si.com</u></div>
      <div style="font-size: 10pt;">&#160;</div>
      <div style="text-align: left; font-family: 'Times New Roman'; font-size: 10pt; font-weight: bold;">Media Contact</div>
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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>5
<FILENAME>qsi-20240205_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="us-ascii"?>
<!--Generated by Broadridge PROfile 23.12.1.5186 Broadridge-->
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_PreCommencementIssuerTenderOffer" xlink:label="PreCommencementIssuerTenderOffer" xlink:title="PreCommencementIssuerTenderOffer" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressPostalZipCode" xlink:label="EntityAddressPostalZipCode" xlink:title="EntityAddressPostalZipCode" />
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</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>6
<FILENAME>qsi-20240205_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
<TEXT>
<XBRL>
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<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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<span style="display: none;">v3.24.0.1</span><table class="report" border="0" cellspacing="2" id="idm139712042022544">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Document and Entity Information<br></strong></div></th>
<th class="th"><div>Feb. 05, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityListingsLineItems', window );"><strong>Entity Listings [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">8-K<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Feb.  05,  2024<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">001-39486<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">QUANTUM-SI INCORPORATED<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0001816431<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">DE<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">85-1388175<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">29 Business Park Drive<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">Branford<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">CT<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">06405<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">866<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">688-7374<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_WrittenCommunications', window );">Written Communications</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_SolicitingMaterial', window );">Soliciting Material</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_PreCommencementTenderOffer', window );">Pre-commencement Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_PreCommencementIssuerTenderOffer', window );">Pre-commencement Issuer Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember', window );">Common Class A [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityListingsLineItems', window );"><strong>Entity Listings [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Class A common stock, par value $0.0001 per share<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">QSI<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NASDAQ<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StatementClassOfStockAxis=qsi_RedeemableWarrantsEachWholeWarrantExercisableForOneShareOfClassACommonStockEachAtAnExercisePriceOf1150PerShareMember', window );">Redeemable warrants, each whole warrant exercisable for one share of Class A common stock, each at an exercise price of $11.50 per share [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityListingsLineItems', window );"><strong>Entity Listings [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Redeemable warrants, each whole warrant exercisable for one share of Class A common stock, each at an exercise price of $11.50 per share<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">QSIAW<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NASDAQ<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_AmendmentFlag</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CityAreaCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CityAreaCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentPeriodEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period.  The format of the date is YYYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentPeriodEndDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentType">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentType</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:submissionTypeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Address Line 1 such as Attn, Building Name, Street Name</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressCityOrTown">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressCityOrTown</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressPostalZipCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressPostalZipCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressStateOrProvince">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressStateOrProvince</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:stateOrProvinceItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityEmergingGrowthCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFileNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFileNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fileNumberItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Two-character EDGAR code representing the state or country of incorporation.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationStateCountryCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarStateCountryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityListingsLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityListingsLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:employerIdItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementIssuerTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 13e<br> -Subsection 4c<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementIssuerTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 14d<br> -Subsection 2b<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_Security12bTitle">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_Security12bTitle</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:securityTitleItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SecurityExchangeName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the Exchange on which a security is registered.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection d1-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SecurityExchangeName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarExchangeCodeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SolicitingMaterial">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Section 14a<br> -Number 240<br> -Subsection 12<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SolicitingMaterial</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_TradingSymbol">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_TradingSymbol</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Securities Act<br> -Number 230<br> -Section 425<br></p></div>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
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      id="Fact_23c99cd2f9af4843b811e58813156ac2">001-39486</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="c20240205to20240205"
      id="Fact_07ac7cce30c44cdbb36a453d9fe40ef0">85-1388175</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="c20240205to20240205"
      id="Fact_effba58cb2bf43a59f01a3aef50495da">29 Business Park Drive</dei:EntityAddressAddressLine1>
    <dei:EntityAddressCityOrTown
      contextRef="c20240205to20240205"
      id="Fact_14ab6b78bb2d4968815018a303fda064">Branford</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="c20240205to20240205"
      id="Fact_25c10af91350479282b16ff3f30e15b8">CT</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="c20240205to20240205"
      id="Fact_ccde57c9f177415abb09d087f26723f1">06405</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="c20240205to20240205"
      id="Fact_dbb1fbe8796b483ba8c5cb9bc88c0823">866</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="c20240205to20240205"
      id="Fact_09481c087845403a8da15e5e445aac48">688-7374</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="c20240205to20240205"
      id="Fact_6474ef65176c49a086cadaa27c072e7c">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="c20240205to20240205"
      id="Fact_0a9405458b9b440caaf97db6ae1b901f">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
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      id="Fact_b65e3ce0574646f5856052b9a118728d">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="c20240205to20240205"
      id="Fact_df79460f9d5b4513a6b1163ed4913e2e">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="c20240205to20240205_StatementClassOfStockAxis_CommonClassAMember"
      id="Fact_b4a10496d53342da807e897bf5ca71e1">Class A common stock, par value $0.0001 per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="c20240205to20240205_StatementClassOfStockAxis_CommonClassAMember"
      id="Fact_d03b0ca39b5d41f09ea9054b9d1524ca">QSI</dei:TradingSymbol>
    <dei:Security12bTitle
      contextRef="c20240205to20240205_StatementClassOfStockAxis_RedeemableWarrantsEachWholeWarrantExercisableForOneShareOfClassACommonStockEachAtAnExercisePriceOf1150PerShareMember"
      id="Fact_b72b4e308d4f436da42fb46f60b35128">Redeemable warrants, each whole warrant exercisable for one share of Class A common stock, each at an exercise price of $11.50 per share</dei:Security12bTitle>
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      contextRef="c20240205to20240205_StatementClassOfStockAxis_RedeemableWarrantsEachWholeWarrantExercisableForOneShareOfClassACommonStockEachAtAnExercisePriceOf1150PerShareMember"
      id="Fact_6602572978e14a159f4b433583918ee7">QSIAW</dei:TradingSymbol>
    <dei:EntityEmergingGrowthCompany
      contextRef="c20240205to20240205"
      id="Fact_e1590955d0f94a418232d4c87a7ea746">false</dei:EntityEmergingGrowthCompany>
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</SEC-DOCUMENT>
