Quarterly report pursuant to Section 13 or 15(d)

Accrued Liabilities and Other Current Liabilities (Details) - Accrued liabilities

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Accrued Liabilities and Other Current Liabilities (Details) - Accrued liabilities (USD $)
In Thousands, unless otherwise specified
Apr. 30, 2015
Jul. 31, 2014
Accrued liabilities [Abstract]    
Legal fee expense $ 4,831enz_AccruedLegalLiabilitiesCurrent $ 4,721enz_AccruedLegalLiabilitiesCurrent
Payroll, benefits, and commissions 3,443us-gaap_EmployeeRelatedLiabilitiesCurrent 4,959us-gaap_EmployeeRelatedLiabilitiesCurrent
Professional fees 654us-gaap_AccruedProfessionalFeesCurrent 638us-gaap_AccruedProfessionalFeesCurrent
Research and development 300enz_AccruedResearchAndDevelopmentLiabilitiesCurrent 400enz_AccruedResearchAndDevelopmentLiabilitiesCurrent
Other 1,832us-gaap_OtherAccruedLiabilitiesCurrent 2,199us-gaap_OtherAccruedLiabilitiesCurrent
$ 11,060us-gaap_AccruedLiabilitiesCurrent $ 12,917us-gaap_AccruedLiabilitiesCurrent