2.4.0.8141 - Disclosure - Income Taxes (Tables)truefalsefalse1false
falsefalseeol_PE677256--1310-K0007_STD_365_20130430_0http://www.sec.gov/CIK0001330421duration2012-05-01T00:00:002013-04-30T00:00:001false
4us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel| 1falsefalsefalse00<div>
<p style="margin-top:6px;margin-bottom:0px; text-indent:4%">
<font style="font-family:Times New Roman" size="2">U.S. and
international components of loss before income taxes were as
follows (in thousands):</font></p>
<p style="font-size:12px;margin-top:0px;margin-bottom:0px">
 </p>
<table cellspacing="0" cellpadding="0" width="84%" border="0" style="BORDER-COLLAPSE:COLLAPSE" align="center">
<tr>
<td width="63%"></td>
<td valign="bottom" width="6%"></td>
<td></td>
<td></td>
<td></td>
<td valign="bottom" width="5%"></td>
<td></td>
<td></td>
<td></td>
<td valign="bottom" width="5%"></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom" colspan="10" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>Year Ended
April 30,</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
</tr>
<tr>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>2013</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>2012</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>2011</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">U.S.</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(66,762</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(24,711</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(20,378</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">International</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">1,863</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">1,193</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">882</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr style="font-size:1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Loss before income
taxes</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(64,899</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(23,518</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(19,496</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
</tr>
<tr style="font-size:1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td> </td>
</tr>
</table>
</div>falsefalsefalse | nonnum:textBlockItemTypenaTabular disclosure of income before income tax between domestic and foreign jurisdictions.No definition available.false0
2false
4us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel| 1falsefalsefalse00<div>
<p style="margin-top:0px;margin-bottom:0px; text-indent:4%">
<font style="font-family:Times New Roman" size="2">Income tax
expense (benefit) is composed of the following (in
thousands):</font></p>
<p style="font-size:6px;margin-top:0px;margin-bottom:0px">
 </p>
<table cellspacing="0" cellpadding="0" width="84%" border="0" style="BORDER-COLLAPSE:COLLAPSE" align="center">
<tr>
<td width="67%"></td>
<td valign="bottom" width="8%"></td>
<td></td>
<td></td>
<td></td>
<td valign="bottom" width="7%"></td>
<td></td>
<td></td>
<td></td>
<td valign="bottom" width="7%"></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom" colspan="10" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>Year Ended
April 30,</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
</tr>
<tr>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>2013</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>2012</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>2011</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Current:</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Federal</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">—  </font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">—  </font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">—  </font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">State</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">956</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">350</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">256</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">International</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">518</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">767</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">233</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr style="font-size:1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Total</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">1,474</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">1,117</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">489</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Deferred:</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Federal</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(16,705</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(7,488</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(6,183</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">State</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">9</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">1</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">1</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">International</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(90</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(282</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">72</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr style="font-size:1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Total</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(16,786</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(7,769</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(6,110</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Change in valuation
allowance</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">14,165</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">7,463</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">6,182</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr style="font-size:1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Provision for (benefit from)
income taxes</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(1,147</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">811</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">561</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr style="font-size:1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td> </td>
</tr>
</table>
</div>falsefalsefalse | nonnum:textBlockItemTypenaTabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319
false0
3false
4us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel| 1falsefalsefalse00<div>
<p style="margin-top:12px;margin-bottom:0px; text-indent:4%">
<font style="font-family:Times New Roman" size="2">The difference
between the tax expense (benefit) derived by applying the Federal
statutory income tax rate to net losses and the expense recognized
in the financial statements is as follows (in
thousands):</font></p>
<p style="font-size:12px;margin-top:0px;margin-bottom:0px">
 </p>
<table cellspacing="0" cellpadding="0" width="84%" border="0" style="BORDER-COLLAPSE:COLLAPSE" align="center">
<tr>
<td width="67%"></td>
<td valign="bottom" width="6%"></td>
<td></td>
<td></td>
<td></td>
<td valign="bottom" width="5%"></td>
<td></td>
<td></td>
<td></td>
<td valign="bottom" width="5%"></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom" colspan="10" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>Year Ended
April 30,</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
</tr>
<tr>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>2013</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>2012</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>2011</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">U.S. federal taxes at
statutory rate</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(22,066</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(7,996</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(6,629</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">State tax
provision</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">275</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">237</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">152</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Foreign tax rate
differentials</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(185</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(110</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(48</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Research and development
credit</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(1,198</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(613</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(586</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-top:0px;margin-bottom:1px; margin-left:1.00em; text-indent:-1.00em">
<font style="font-family:Times New Roman" size="2">Non-deductible
transaction costs</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">3,956</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">—  </font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">—  </font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Stock options</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">3,752</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">1,448</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">1,209</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Permanent differences and
other</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">154</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">382</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">281</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Change in valuation
allowance</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">14,165</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">7,463</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">6,182</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr style="font-size:1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Provision for (benefit from)
income taxes</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(1,147</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">811</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">561</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr style="font-size:1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td> </td>
</tr>
</table>
</div>falsefalsefalse | nonnum:textBlockItemTypenaTabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319
false0
4false
4us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel| 1falsefalsefalse00<div>
<p style="margin-top:0px;margin-bottom:0px; text-indent:4%">
<font style="font-family:Times New Roman" size="2">The components
of the net deferred tax amounts recognized in the accompanying
consolidated balance sheets are (in thousands):</font></p>
<p style="font-size:12px;margin-top:0px;margin-bottom:0px">
 </p>
<table cellspacing="0" cellpadding="0" width="76%" border="0" style="BORDER-COLLAPSE:COLLAPSE" align="center">
<tr>
<td width="71%"></td>
<td valign="bottom" width="12%"></td>
<td></td>
<td></td>
<td></td>
<td valign="bottom" width="11%"></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom" colspan="6" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>Year Ended
April 30,</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
</tr>
<tr>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>2013</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>2012</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Deferred tax
assets:</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Bad debts</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">761</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">268</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Other accruals</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">2,158</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">598</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Charitable
contributions</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">216</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">119</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Stock options</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">3,476</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">1,520</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">State tax credit</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">15</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">16</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Net operating
losses</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">45,309</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">15,412</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Research and development
credit</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">3,169</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">1,355</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Deferred rent</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">1,045</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">1,099</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Deferred revenue</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">1,694</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">1,824</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr style="font-size:1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Total deferred tax
assets</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">57,843</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">22,211</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Less valuation
allowance</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(37,902</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(19,854</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
</tr>
<tr style="font-size:1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Net deferred tax
assets</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">19,941</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">2,357</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Deferred tax
liability:</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Intangible assets</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(16,756</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">—  </font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Depreciation</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(3,152</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(2,116</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
</tr>
<tr style="font-size:1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Total deferred tax
liability</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(19,908</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(2,116</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
</tr>
<tr style="font-size:1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Total net deferred tax
assets</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">33</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">241</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr style="font-size:1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td> </td>
</tr>
</table>
</div>falsefalsefalse | nonnum:textBlockItemTypenaTabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319
false0
5false
4us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel| 1falsefalsefalse00<div>
<p style="margin-top:0px;margin-bottom:0px; text-indent:4%">
<font style="font-family:Times New Roman" size="2">The aggregate
changes in the balance of unrecognized tax benefits were as follows
(in thousands):</font></p>
<p style="font-size:12px;margin-top:0px;margin-bottom:0px">
 </p>
<table cellspacing="0" cellpadding="0" width="84%" border="0" style="BORDER-COLLAPSE:COLLAPSE" align="center">
<tr>
<td width="73%"></td>
<td valign="bottom" width="6%"></td>
<td></td>
<td></td>
<td></td>
<td valign="bottom" width="5%"></td>
<td></td>
<td></td>
<td></td>
<td valign="bottom" width="5%"></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom" colspan="10" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>Year Ended
April 30,</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
</tr>
<tr>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>2013</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>2012</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom" colspan="2" align="center" style="border-bottom:1px solid #000000"><font style="font-family:Times New Roman" size="1"><b>2011</b></font></td>
<td valign="bottom"><font size="1"> </font></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Unrecognized tax benefits as
of May 1,</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">539</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">369</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">174</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Tax positions related to
prior periods:</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Gross increases</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">862</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">9</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">—  </font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Gross decreases</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">—  </font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(68</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">—  </font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Tax positions related to
current period:</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
<td valign="bottom"></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Gross increases</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">330</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">232</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">195</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:3.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Gross decreases</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">—  </font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">—  </font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">—  </font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr>
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Lapse of statute of
limitations</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(2</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">(3</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">) </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">—  </font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr style="font-size:1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:1px solid #000000"> </p>
</td>
<td> </td>
</tr>
<tr bgcolor="#CCEEFF">
<td valign="top">
<p style="margin-left:1.00em; text-indent:-1.00em"><font style="font-family:Times New Roman" size="2">Balance as of
April 30,</font></p>
</td>
<td valign="bottom"><font size="1">  </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">1,729</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">539</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
<td valign="bottom"><font size="1"> </font></td>
<td valign="bottom"><font style="font-family:Times New Roman" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family:Times New Roman" size="2">369</font></td>
<td nowrap="nowrap" valign="bottom"><font style="font-family:Times New Roman" size="2">  </font></td>
</tr>
<tr style="font-size:1px">
<td valign="bottom"></td>
<td valign="bottom">  </td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td> </td>
<td valign="bottom"> </td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td valign="bottom">
<p style="border-top:3px double #000000"> </p>
</td>
<td> </td>
</tr>
</table>
</div>falsefalsefalse | nonnum:textBlockItemTypenaTabular disclosure of the change in unrecognized tax benefits.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 55
-Paragraph 217
-URI http://asc.fasb.org/extlink&oid=21917533&loc=d3e36027-109320
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319
false0
falseIncome Taxes (Tables)UnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.bazaarvoice.com/taxonomy/role/NotesToFinancialStatementsIncomeTaxDisclosureTextBlockTables15