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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jan. 31, 2015
Jan. 31, 2014
Cash flows from operating activities:    
Net loss $ (7,820)us-gaap_NetIncomeLoss $ (6,353)us-gaap_NetIncomeLoss
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization of property, plant and equipment 1,014us-gaap_Depreciation 1,099us-gaap_Depreciation
Amortization of intangible assets 859us-gaap_AmortizationOfIntangibleAssets 928us-gaap_AmortizationOfIntangibleAssets
Provision for uncollectible accounts receivable 1,142us-gaap_ProvisionForDoubtfulAccounts 1,784us-gaap_ProvisionForDoubtfulAccounts
Deferred income tax benefit (48)us-gaap_DeferredIncomeTaxExpenseBenefit (50)us-gaap_DeferredIncomeTaxExpenseBenefit
Share-based compensation charges 203us-gaap_ShareBasedCompensation 212us-gaap_ShareBasedCompensation
Accrual for share-based 401(k) employer match expense 296enz_AccrualForSharebased401kEmployerMatchExpense 319enz_AccrualForSharebased401kEmployerMatchExpense
Foreign exchange loss (gain) 570enz_ForeignCurrencyGainLossOnIntercompanyLoan (319)enz_ForeignCurrencyGainLossOnIntercompanyLoan
Changes in operating assets and liabilities:    
Accounts receivable (524)us-gaap_IncreaseDecreaseInAccountsReceivable (1,333)us-gaap_IncreaseDecreaseInAccountsReceivable
Inventories 306us-gaap_IncreaseDecreaseInInventories (381)us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other 524us-gaap_IncreaseDecreaseInPrepaidExpense 512us-gaap_IncreaseDecreaseInPrepaidExpense
Accounts payable – trade (1,423)us-gaap_IncreaseDecreaseInAccountsPayableTrade 345us-gaap_IncreaseDecreaseInAccountsPayableTrade
Accrued liabilities, other current liabilities and other liabilities (1,571)us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities (1,467)us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities
Total adjustments 1,348us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities 1,649us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities
Net cash used in operating activities (6,472)us-gaap_NetCashProvidedByUsedInOperatingActivities (4,704)us-gaap_NetCashProvidedByUsedInOperatingActivities
Cash flows from investing activities:    
Capital expenditures (653)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment (444)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Security deposits and other   (28)enz_IncreaseDecreaseInSecurityDepositsAndOther
Net cash used in investing activities (653)us-gaap_NetCashProvidedByUsedInInvestingActivities (472)us-gaap_NetCashProvidedByUsedInInvestingActivities
Cash flows from financing activities:    
Net proceeds from issuance of common stock 5,341us-gaap_ProceedsFromIssuanceOfCommonStock 4,244us-gaap_ProceedsFromIssuanceOfCommonStock
Proceeds from borrowings under Credit Agreement 43,362us-gaap_ProceedsFromLinesOfCredit 36,614us-gaap_ProceedsFromLinesOfCredit
Repayments under Credit Agreement (43,362)us-gaap_RepaymentsOfLinesOfCredit (36,965)us-gaap_RepaymentsOfLinesOfCredit
Installment loan and capital lease obligation payments (230)us-gaap_ProceedsFromRepaymentsOfDebt (181)us-gaap_ProceedsFromRepaymentsOfDebt
Net cash provided by financing activities 5,111us-gaap_NetCashProvidedByUsedInFinancingActivities 3,712us-gaap_NetCashProvidedByUsedInFinancingActivities
Effect of exchange rate changes on cash and cash equivalents (95)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents 78us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents
Decrease in cash and cash equivalents (2,109)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease (1,386)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Cash and cash equivalents - beginning of period 17,455us-gaap_CashAndCashEquivalentsAtCarryingValue 9,007us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash and cash equivalents - end of period $ 15,346us-gaap_CashAndCashEquivalentsAtCarryingValue $ 7,621us-gaap_CashAndCashEquivalentsAtCarryingValue