Revenue Recognition (Details) - Schedule Product revenue by geography - Life Sciences [Member] - USD ($) $ in Thousands |
3 Months Ended | |
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Oct. 31, 2018 |
Oct. 31, 2017 |
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| Revenue Recognition (Details) - Schedule Product revenue by geography [Line Items] | ||
| Net product revenues | $ 6,963 | $ 7,081 |
| UNITED STATES | ||
| Revenue Recognition (Details) - Schedule Product revenue by geography [Line Items] | ||
| Net product revenues | 3,879 | 3,736 |
| Europe [Member] | ||
| Revenue Recognition (Details) - Schedule Product revenue by geography [Line Items] | ||
| Net product revenues | 1,342 | 1,632 |
| Rest of world [Member] | ||
| Revenue Recognition (Details) - Schedule Product revenue by geography [Line Items] | ||
| Net product revenues | $ 1,742 | $ 1,713 |
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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