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2us-gaap_FairValueDisclosuresTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel| 1falsefalsefalse00<div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; font-weight: bold; text-align: left;">Note 3. Fair Value of Financial Instruments</div><div><br /></div><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left;">Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value hierarchy distinguishes between (1) market participant assumptions developed based on market data obtained from independent sources (observable inputs) and (2) an entity’s own assumptions about market participant assumptions developed based on the best information available in the circumstances (unobservable inputs). The fair value hierarchy consists of three broad levels, which gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are described below:</div><div><br /></div><div style="text-align: left;"><table cellpadding="0" cellspacing="0" class="DSPFListTable" style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; width: 100%;"><tr><td style="width: 18pt;"></td><td style="font-size: 10pt; font-family: Symbol, serif; vertical-align: top; width: 18pt; align: right;">·</td><td style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; vertical-align: top; text-align: left; width: auto;"><font style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; font-weight: bold; font-style: italic;">Level 1:</font> Quoted prices (unadjusted) in active markets that are accessible at the measurement date for assets or liabilities.</td></tr></table></div><div style="text-align: left;"><table cellpadding="0" cellspacing="0" class="DSPFListTable" style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; width: 100%;"><tr><td style="width: 18pt;"></td><td style="font-size: 10pt; font-family: Symbol, serif; vertical-align: top; width: 18pt; align: right;">·</td><td style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; vertical-align: top; text-align: left; width: auto;"><font style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; font-weight: bold; font-style: italic;">Level 2:</font> Directly or indirectly observable inputs as of the reporting date through correlation with market data, including quoted prices for similar assets and liabilities in active markets and quoted prices in markets that are not active. Level 2 also includes assets and liabilities that are valued using models or other pricing methodologies that do not require significant judgment since the input assumptions used in the models, such as interest rates and volatility factors, are corroborated by readily observable data from actively quoted markets for substantially the full term of the financial instrument.</td></tr></table></div><div style="text-align: left;"><table cellpadding="0" cellspacing="0" class="DSPFListTable" style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; width: 100%;"><tr><td style="width: 18pt;"></td><td style="font-size: 10pt; font-family: Symbol, serif; vertical-align: top; width: 18pt; align: right;">·</td><td style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; vertical-align: top; text-align: left; width: auto;"><font style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; font-weight: bold; font-style: italic;">Level 3:</font> Unobservable inputs that are supported by little or no market activity and reflect the use of significant management judgment. These values are generally determined using pricing models for which the assumptions utilize management’s estimates of market participant assumptions.</td></tr></table></div><div><br /></div><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left;">In determining fair value, the Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible as well as considers counterparty credit risk in its assessment of fair value.</div><div><br /></div><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left;">As of June 30, 2013, financial assets measured and recognized at fair value on a recurring basis and classified under the appropriate level of the fair value hierarchy as described above was as follows <font style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; font-style: italic;">(in thousands)</font>:</div><div><br /></div><table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; width: 100%;"><tr><td valign="bottom" style="vertical-align: bottom; border-bottom: #000000 2px solid; padding-bottom: 2px;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; font-weight: bold; text-align: left; margin-left: 16.2pt; text-indent: -16.2pt;">June 30, 2013</div></td><td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"> </td><td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 2px solid;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; font-weight: bold; text-align: center;">Level 1</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; text-align: left;"> </td><td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"> </td><td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 2px solid;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; font-weight: bold; text-align: center;">Level 2</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; text-align: left;"> </td><td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"> </td><td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 2px solid;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; font-weight: bold; text-align: center;">Level 3</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; text-align: left;"> </td><td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"> </td><td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 2px solid;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; font-weight: bold; text-align: center;">Total</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; text-align: left;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 16.2pt; text-indent: -16.2pt;">Cash equivalents:</div></td><td valign="bottom" style="vertical-align: top;"> </td><td colspan="2" valign="bottom" style="vertical-align: top;"><div></div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left;"> </td><td valign="bottom" style="vertical-align: top;"> </td><td colspan="2" valign="bottom" style="vertical-align: top;"><div></div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left;"> </td><td valign="bottom" style="vertical-align: top;"> </td><td colspan="2" valign="bottom" style="vertical-align: top;"><div></div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left;"> </td><td valign="bottom" style="vertical-align: top;"> </td><td colspan="2" valign="bottom" style="vertical-align: top;"><div></div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 25.2pt; text-indent: -16.2pt;">Money market funds</div></td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">$</div></td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">7,858</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">$</div></td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">7,858</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 25.2pt; text-indent: -16.2pt;">Commercial paper</div></td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">2,000</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">2,000</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 16.2pt; text-indent: -16.2pt;">Short-term marketable investments:</div></td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"> </td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"> </td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"> </td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"> </td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 25.2pt; text-indent: -16.2pt;">U.S. government notes</div></td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">4,006</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">4,006</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 25.2pt; text-indent: -16.2pt;">U.S. government agencies</div></td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">34,554</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">34,554</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 25.2pt; text-indent: -16.2pt;">Municipal securities</div></td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">3,121</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">3,121</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 25.2pt; text-indent: -16.2pt;">Commercial paper</div></td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">15,604</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">15,604</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; width: 52%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 25.2pt; text-indent: -16.2pt;">Corporate debt securities</div></td><td valign="bottom" style="vertical-align: top; padding-bottom: 2px; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 2px solid; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 2px solid; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; padding-bottom: 2px; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; padding-bottom: 2px; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 2px solid; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 2px solid; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">20,456</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; padding-bottom: 2px; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; padding-bottom: 2px; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 2px solid; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 2px solid; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; padding-bottom: 2px; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; padding-bottom: 2px; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 2px solid; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 2px solid; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">20,456</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; padding-bottom: 2px; text-align: left; width: 1%; background-color: #ffffff;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; padding-bottom: 4px; width: 52%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 34.2pt; text-indent: -16.2pt;">Total assets at fair value</div></td><td valign="bottom" style="vertical-align: top; padding-bottom: 4px; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 4px double; text-align: left; width: 1%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">$</div></td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 4px double; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">7,858</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; padding-bottom: 4px; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; padding-bottom: 4px; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 4px double; text-align: left; width: 1%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">$</div></td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 4px double; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">79,741</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; padding-bottom: 4px; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; padding-bottom: 4px; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 4px double; text-align: left; width: 1%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">$</div></td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 4px double; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; padding-bottom: 4px; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; padding-bottom: 4px; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 4px double; text-align: left; width: 1%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">$</div></td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 4px double; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">87,599</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; padding-bottom: 4px; text-align: left; width: 1%; background-color: #cceeff;"> </td></tr></table><div><br /></div><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left;">As of December 31, 2012, financial assets measured and recognized at fair value on a recurring basis and classified under the appropriate level of the fair value hierarchy as described above was as follows <font style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; font-style: italic;">(in thousands)</font>:</div><div><br /></div><table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; width: 100%;"><tr><td valign="bottom" style="vertical-align: bottom; border-bottom: #000000 2px solid; padding-bottom: 2px;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; font-weight: bold; text-align: left; margin-left: 16.2pt; text-indent: -16.2pt;">December 31, 2012</div></td><td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"> </td><td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 2px solid;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; font-weight: bold; text-align: center;">Level 1</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; text-align: left;"> </td><td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"> </td><td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 2px solid;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; font-weight: bold; text-align: center;">Level 2</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; text-align: left;"> </td><td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"> </td><td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 2px solid;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; font-weight: bold; text-align: center;">Level 3</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; text-align: left;"> </td><td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"> </td><td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 2px solid;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; font-weight: bold; text-align: center;">Total</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; text-align: left;"> </td></tr><tr style="height: 12px;"><td valign="bottom" style="vertical-align: bottom;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 16.2pt; text-indent: -16.2pt;">Cash equivalents:</div></td><td valign="bottom" style="vertical-align: top;"> </td><td colspan="2" valign="bottom" style="vertical-align: top;"><div></div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left;"> </td><td valign="bottom" style="vertical-align: top;"> </td><td colspan="2" valign="bottom" style="vertical-align: top;"><div></div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left;"> </td><td valign="bottom" style="vertical-align: top;"> </td><td colspan="2" valign="bottom" style="vertical-align: top;"><div></div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left;"> </td><td valign="bottom" style="vertical-align: top;"> </td><td colspan="2" valign="bottom" style="vertical-align: top;"><div></div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 25.2pt; text-indent: -16.2pt;">Money market funds</div></td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">$</div></td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">17,348</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">$</div></td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">17,348</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 25.2pt; text-indent: -16.2pt;">Commercial paper</div></td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">4,000</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">4,000</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 16.2pt; text-indent: -16.2pt;">Short-term marketable investments:</div></td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"> </td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"> </td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"> </td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"> </td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 25.2pt; text-indent: -16.2pt;">U.S. government notes</div></td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">4,009</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">4,009</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 25.2pt; text-indent: -16.2pt;">U.S. government agencies</div></td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">24,958</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">24,958</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 25.2pt; text-indent: -16.2pt;">Municipal securities</div></td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">4,206</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">4,206</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #ffffff;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 25.2pt; text-indent: -16.2pt;">Commercial paper</div></td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">10,519</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">10,519</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; text-align: left; width: 1%; background-color: #cceeff;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; width: 52%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 25.2pt; text-indent: -16.2pt;">Corporate debt securities</div></td><td valign="bottom" style="vertical-align: top; padding-bottom: 2px; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 2px solid; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 2px solid; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; padding-bottom: 2px; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; padding-bottom: 2px; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 2px solid; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 2px solid; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">18,334</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; padding-bottom: 2px; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; padding-bottom: 2px; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 2px solid; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 2px solid; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; padding-bottom: 2px; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; padding-bottom: 2px; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 2px solid; text-align: left; width: 1%; background-color: #ffffff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 2px solid; text-align: right; width: 9%; background-color: #ffffff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">18,334</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; padding-bottom: 2px; text-align: left; width: 1%; background-color: #ffffff;"> </td></tr><tr><td valign="bottom" style="vertical-align: bottom; padding-bottom: 4px; width: 52%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: left; margin-left: 34.2pt; text-indent: -16.2pt;">Total assets at fair value</div></td><td valign="bottom" style="vertical-align: top; padding-bottom: 4px; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 4px double; text-align: left; width: 1%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">$</div></td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 4px double; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">17,348</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; padding-bottom: 4px; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; padding-bottom: 4px; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 4px double; text-align: left; width: 1%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">$</div></td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 4px double; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">66,026</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; padding-bottom: 4px; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; padding-bottom: 4px; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 4px double; text-align: left; width: 1%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">$</div></td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 4px double; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">—</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; padding-bottom: 4px; text-align: left; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; padding-bottom: 4px; width: 1%; background-color: #cceeff;"> </td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 4px double; text-align: left; width: 1%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">$</div></td><td valign="bottom" style="vertical-align: top; border-bottom: #000000 4px double; text-align: right; width: 9%; background-color: #cceeff;"><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif;">83,374</div></td><td nowrap="nowrap" valign="bottom" style="vertical-align: top; padding-bottom: 4px; text-align: left; width: 1%; background-color: #cceeff;"> </td></tr></table><div><br /></div><div style="font-size: 10pt; font-family: ''Times New Roman'', Times, serif; text-align: justify;">The Company’s Level 2 investments include U.S. government-backed securities and corporate securities that are valued based upon observable inputs that may include benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data including market research publications. The average remaining maturity of the Company’s Level 2 investments as of June 30, 2013 is less than 36 months and all of these investments are rated by S&P and Moody’s at A or better, with the exception of one short-term municipal note that was rated at SP-1+ (S&P’s credit rating indicating a very strong capacity to pay principal and interest).</div></div>falsefalsefalse | nonnum:textBlockItemTypenaThe entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.Reference 1: http://www.xbrl.org/2003/role/presentationRef
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