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Fair Value Measurements (Tables) | 3 Months Ended
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Oct. 31, 2013
Fair Value Disclosures [Abstract] |
Summary Of Cash Equivalents Measured At Fair Value | The table below summarizes the Company’s cash equivalents and Contingent Consideration (see Note 5) measured at fair value (all other assets and liabilities measured at fair value are immaterial) (in thousands):
|  |  | Fair Value Measurement as of October 31, 2013
| Description |  | Balance at October 31, 2013 |  | Level 1 |  | Level 2 |  | Level 3
| Assets: |  |  |  |  |  |  |  |
| Money Market |  | $ | 9,023 |  |  | $ | 9,023 |  |  | $ | — |  |  | $ | — |
| Commercial Paper |  | $ | 630 |  |  | $ | — |  |  | $ | 630 |  |  | $ | — |
| Certificates of Deposit |  | $ | 630 |  |  | $ | — |  |  | $ | 630 |  |  | $ | — |
| Liabilities: |  |  |  |  |  |  |  |
| Contingent Consideration (Note 5) |  | $ | 9,100 |  |  | $ | — |  |  | $ | — |  |  | $ | 9,100 |
|  |  | Fair Value Measurement as of July 31, 2013
| Description |  | Balance at July 31, 2013 |  | Level 1 |  | Level 2 |  | Level 3
| Assets: |  |  |  |  |  |  |  |
| Money Market |  | $ | 34,029 |  |  | $ | 34,029 |  |  | $ | — |  |  | $ | — |
| Commercial Paper |  | $ | 630 |  |  | $ | — |  |  | $ | 630 |  |  | $ | — |
| Certificates of Deposit |  | $ | 630 |  |  | $ | — |  |  | $ | 630 |  |  | $ | — |
| Liabilities: |  |  |  |  |  |  |  |
| Contingent Consideration (Note 5) |  | $ | 9,100 |  |  | $ | — |  |  | $ | — |  |  | $ | 9,100 |
|  |  | Fair Value Measurement as of October 31, 2012
| Description |  | Balance at October 31, 2012 |  | Level 1 |  | Level 2 |  | Level 3
| Assets: |  |  |  |  |  |  |  |
| Money Market |  | $ | 9,025 |  |  | $ | 9,025 |  |  | $ | — |  |  | $ | — |
| Commercial Paper |  | $ | 630 |  |  | $ | — |  |  | $ | 630 |  |  | $ | — |
| Certificates of Deposit |  | $ | 630 |  |  | $ | — |  |  | $ | 630 |  |  | $ | — |

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- Definition Tabular disclosure of the inputs and valuation techniques used to measure fair value, and a discussion of changes in valuation techniques and related inputs, if any, applied during the period to each separate class of assets, liabilities, and financial instruments classified in shareholders' equity that are measured on a recurring and/or nonrecurring basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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