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    <Log type="Info">	Process Flow-Through: Removing column 'Dec. 31, 2010'</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Dec. 31, 2009'</Log>
    <Log type="Info">Process Flow-Through: 0015 - Statement - Balance Sheets (Parentheical)</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Aug. 31, 2005
Series A redeemable convertible preferred stock'</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'May 31, 2006
Series B redeemable convertible preferred stock'</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Jan. 25, 2011
Series C redeemable convertible preferred stock'</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'May 31, 2008
Series C redeemable convertible preferred stock'</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Aug. 31, 2011
Series D redeemable convertible preferred stock'</Log>
    <Log type="Info">Process Flow-Through: 0020 - Statement - Statements of Operations and Comprehensive Loss</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Dec. 31, 2012'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Sep. 30, 2012'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Jun. 30, 2012'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Mar. 31, 2012'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Dec. 31, 2011'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Sep. 30, 2011'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Jun. 30, 2011'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Mar. 31, 2011'</Log>
    <Log type="Info">Process Flow-Through: 0035 - Statement - Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit) (Parentheical)</Log>
    <Log type="Info">	Process Flow-Through: Removing column '0 Months Ended
Oct. 16, 2012'</Log>
    <Log type="Info">Process Flow-Through: 0040 - Statement - Statements of Cash Flows</Log>
  </Logs>
  <InputFiles>
    <File>kyth-20121231.xml</File>
    <File>kyth-20121231.xsd</File>
    <File>kyth-20121231_cal.xml</File>
    <File>kyth-20121231_def.xml</File>
    <File>kyth-20121231_lab.xml</File>
    <File>kyth-20121231_pre.xml</File>
  </InputFiles>
  <SupplementalFiles />
  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
