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Accrued Liabilities and Other Current Liabilities (Details) - Other current liabilities (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2015
Jul. 31, 2014
Accrued Liabilities and Other Current Liabilities (Details) - Other current liabilities [Line Items]    
Other Liabilities Current $ 830us-gaap_OtherLiabilitiesCurrent $ 790us-gaap_OtherLiabilitiesCurrent
Accrued Legal Settlement [Member]    
Accrued Liabilities and Other Current Liabilities (Details) - Other current liabilities [Line Items]    
Other Liabilities Current 400us-gaap_OtherLiabilitiesCurrent
/ us-gaap_LongtermDebtTypeAxis
= enz_AccruedLegalSettlementMember
400us-gaap_OtherLiabilitiesCurrent
/ us-gaap_LongtermDebtTypeAxis
= enz_AccruedLegalSettlementMember
Installment Loans [Member]    
Accrued Liabilities and Other Current Liabilities (Details) - Other current liabilities [Line Items]    
Other Liabilities Current 281us-gaap_OtherLiabilitiesCurrent
/ us-gaap_LongtermDebtTypeAxis
= enz_InstallmentLoansMember
241us-gaap_OtherLiabilitiesCurrent
/ us-gaap_LongtermDebtTypeAxis
= enz_InstallmentLoansMember
Capital Lease Obligations [Member]    
Accrued Liabilities and Other Current Liabilities (Details) - Other current liabilities [Line Items]    
Other Liabilities Current $ 149us-gaap_OtherLiabilitiesCurrent
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_CapitalLeaseObligationsMember
$ 149us-gaap_OtherLiabilitiesCurrent
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_CapitalLeaseObligationsMember