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Segment reporting (Details) - Schedule Of Segment Revenue By Geographical (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
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Jul. 31, 2013
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Jul. 31, 2012
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Jul. 31, 2011
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| Segment reporting (Details) - Schedule Of Segment Revenue By Geographical [Line Items] | |||
| Sales Revenue Net | $ 93,707 | $ 103,083 | $ 102,029 |
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Life Sciences [Member] | UNITED STATES
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| Segment reporting (Details) - Schedule Of Segment Revenue By Geographical [Line Items] | |||
| Sales Revenue Net | 24,669 | 28,372 | 32,928 |
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Life Sciences [Member] | Foreign Countries [Member]
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| Segment reporting (Details) - Schedule Of Segment Revenue By Geographical [Line Items] | |||
| Sales Revenue Net | 13,149 | 15,308 | 16,339 |
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Life Sciences [Member]
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| Segment reporting (Details) - Schedule Of Segment Revenue By Geographical [Line Items] | |||
| Sales Revenue Net | 37,818 | 43,680 | 49,267 |
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UNITED STATES
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| Segment reporting (Details) - Schedule Of Segment Revenue By Geographical [Line Items] | |||
| Sales Revenue Net | $ 80,559 | $ 87,776 | $ 85,691 |
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- Details
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- Definition
Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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