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Goodwill and intangible assets (Detail) - Schedule of good will (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|
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Jul. 31, 2012
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Jul. 31, 2011
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Jul. 31, 2012
Enzo Life Sciences [Member]
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Jul. 31, 2011
Enzo Life Sciences [Member]
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Jul. 31, 2012
Enzo Clinical Labs [Member]
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Jul. 31, 2011
Enzo Clinical Labs [Member]
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Jul. 31, 2010
Enzo Clinical Labs [Member]
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| Balance | $ 27,373 | $ 24,943 | $ 19,921 | $ 17,491 | $ 7,452 | $ 7,452 | $ 7,452 |
| Additional purchase price consideration | 1,150 | 1,150 | |||||
| Foreign currency translation | (1,083) | 1,280 | (1,083) | 1,280 | |||
| Impairment charge | (18,838) | (18,838) | |||||
| Balance | $ 7,452 | $ 27,373 | $ 19,921 | $ 7,452 | $ 7,452 | $ 7,452 | |
| X | ||||||||||
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- Definition
Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The increase (decrease) to the recorded value of goodwill for foreign currency translation adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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