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INCOME TAXES (Details) (USD $)
 12 Months Ended
Jan. 31, 2015
Jan. 31, 2014
Jan. 31, 2013
Current:      
Federal $ 174,000us-gaap_CurrentFederalTaxExpenseBenefit $ 303,000us-gaap_CurrentFederalTaxExpenseBenefit $ 684,000us-gaap_CurrentFederalTaxExpenseBenefit
State 109,000us-gaap_CurrentStateAndLocalTaxExpenseBenefit 33,000us-gaap_CurrentStateAndLocalTaxExpenseBenefit 25,000us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Foreign 3,010,000us-gaap_CurrentForeignTaxExpenseBenefit 2,703,000us-gaap_CurrentForeignTaxExpenseBenefit 2,569,000us-gaap_CurrentForeignTaxExpenseBenefit
Current subtotal 3,293,000us-gaap_CurrentIncomeTaxExpenseBenefit 3,039,000us-gaap_CurrentIncomeTaxExpenseBenefit 3,278,000us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred:      
Federal (786,000)us-gaap_DeferredFederalIncomeTaxExpenseBenefit 20,000us-gaap_DeferredFederalIncomeTaxExpenseBenefit 942,000us-gaap_DeferredFederalIncomeTaxExpenseBenefit
State 229,000us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit 306,000us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit 220,000us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
Foreign (348,000)us-gaap_DeferredForeignIncomeTaxExpenseBenefit 297,000us-gaap_DeferredForeignIncomeTaxExpenseBenefit (929,000)us-gaap_DeferredForeignIncomeTaxExpenseBenefit
Deferred subtotal (905,000)us-gaap_DeferredIncomeTaxExpenseBenefit 623,000us-gaap_DeferredIncomeTaxExpenseBenefit 233,000us-gaap_DeferredIncomeTaxExpenseBenefit
Equity adjustment 251,000us-gaap_OtherTaxExpenseBenefit 104,000us-gaap_OtherTaxExpenseBenefit 140,000us-gaap_OtherTaxExpenseBenefit
Total 2,639,000us-gaap_IncomeTaxExpenseBenefit 3,766,000us-gaap_IncomeTaxExpenseBenefit 3,651,000us-gaap_IncomeTaxExpenseBenefit
Federal statutory income tax rate (in hundredth) 34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate    
Income Tax Reconciliation [Abstract]      
Computed expected tax expense 5,299,000us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate 3,452,000us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate 3,499,000us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
State income taxes, net of federal income tax expense 253,000us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes 330,000us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes 208,000us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Incremental tax benefit from foreign operations (5,220,000)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential (2,676,000)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential (1,355,000)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential
Non-deductible equity compensation 258,000us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost 1,176,000us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost 913,000us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
Foreign withholding taxes 1,256,000us-gaap_IncomeTaxReconciliationTaxCreditsForeign 1,171,000us-gaap_IncomeTaxReconciliationTaxCreditsForeign 928,000us-gaap_IncomeTaxReconciliationTaxCreditsForeign
Net change in valuation allowance 1,657,000us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance (108,000)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance (826,000)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Net change in contingency reserve (594,000)us-gaap_IncomeTaxReconciliationTaxContingencies 45,000us-gaap_IncomeTaxReconciliationTaxContingencies (68,000)us-gaap_IncomeTaxReconciliationTaxContingencies
Non-deductible expenses 742,000us-gaap_IncomeTaxReconciliationNondeductibleExpense 1,084,000us-gaap_IncomeTaxReconciliationNondeductibleExpense 296,000us-gaap_IncomeTaxReconciliationNondeductibleExpense
Benefit of tax credits (1,345,000)us-gaap_IncomeTaxReconciliationTaxCreditsOther (1,624,000)us-gaap_IncomeTaxReconciliationTaxCreditsOther (446,000)us-gaap_IncomeTaxReconciliationTaxCreditsOther
Subpart F Income 283,000us-gaap_IncomeTaxReconciliationRepatriationOfForeignEarnings 198,000us-gaap_IncomeTaxReconciliationRepatriationOfForeignEarnings 313,000us-gaap_IncomeTaxReconciliationRepatriationOfForeignEarnings
Rate change impact 54,000us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate (88,000)us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate 164,000us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate
Other (4,000)us-gaap_IncomeTaxReconciliationOtherAdjustments 806,000us-gaap_IncomeTaxReconciliationOtherAdjustments 25,000us-gaap_IncomeTaxReconciliationOtherAdjustments
Total 2,639,000us-gaap_IncomeTaxExpenseBenefit 3,766,000us-gaap_IncomeTaxExpenseBenefit 3,651,000us-gaap_IncomeTaxExpenseBenefit
Consolidated U.S. income (loss) before income taxes (2,400,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic (1,200,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic 2,300,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
Income before income taxes for foreign operations 18,000,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign 11,400,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign 8,000,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
Permanently reinvested earnings of foreign subsidiaries 76,100,000us-gaap_UndistributedEarningsOfForeignSubsidiaries    
Deferred Tax Assets [Abstract]      
Allowance for doubtful accounts and sales adjustments 452,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts 492,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts  
Accrued vacation 2,015,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences 1,923,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences  
Tax credits 8,584,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwards 7,911,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwards  
Deferred revenue 3,666,000us-gaap_DeferredTaxAssetsDeferredIncome 3,467,000us-gaap_DeferredTaxAssetsDeferredIncome  
Net operating loss carry forwards 9,646,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards 10,608,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards  
Accrued expenses - other 2,478,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseOther 2,076,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseOther  
Section 263(a) interest capitalization 353,000qada_Section263InterestCapitalization 368,000qada_Section263InterestCapitalization  
Equity compensation 3,673,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost 4,306,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost  
Other 1,824,000us-gaap_DeferredTaxAssetsOther 1,423,000us-gaap_DeferredTaxAssetsOther  
Total deferred tax assets 32,691,000us-gaap_DeferredTaxAssetsGross 32,574,000us-gaap_DeferredTaxAssetsGross  
Less valuation allowance (10,684,000)us-gaap_DeferredTaxAssetsValuationAllowance (10,293,000)us-gaap_DeferredTaxAssetsValuationAllowance  
Less netting of unrecognized tax benefits against deferred tax assets (1,406,000)us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther 0us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther  
Deferred tax assets, net of valuation allowance 20,601,000us-gaap_DeferredTaxAssetsNet 22,281,000us-gaap_DeferredTaxAssetsNet  
Deferred Tax Liabilities [Abstract]      
Unrecognized capital gain (863,000)us-gaap_DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities (1,033,000)us-gaap_DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities  
Depreciation and amortization (379,000)us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment (654,000)us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment  
Other comprehensive income (20,000)us-gaap_DeferredTaxLiabilitiesOtherComprehensiveIncome (295,000)us-gaap_DeferredTaxLiabilitiesOtherComprehensiveIncome  
Other (346,000)us-gaap_DeferredTaxLiabilitiesOther (378,000)us-gaap_DeferredTaxLiabilitiesOther  
Total deferred tax liabilities (1,608,000)us-gaap_DeferredIncomeTaxLiabilities (2,360,000)us-gaap_DeferredIncomeTaxLiabilities  
Total net deferred tax assets 18,993,000us-gaap_DeferredTaxAssetsLiabilitiesNet 19,921,000us-gaap_DeferredTaxAssetsLiabilitiesNet  
Current portion of deferred tax asset 9,434,000us-gaap_DeferredTaxAssetsNetCurrent 8,242,000us-gaap_DeferredTaxAssetsNetCurrent  
Non-current portion of deferred tax assets 11,229,000us-gaap_DeferredTaxAssetsNetNoncurrent 13,110,000us-gaap_DeferredTaxAssetsNetNoncurrent  
Current portion of deferred tax liabilities (in current deferred tax assets) (121,000)us-gaap_DeferredTaxLiabilitiesCurrent (109,000)us-gaap_DeferredTaxLiabilitiesCurrent  
Non-current portion of deferred tax liabilities (in non-current deferred tax assets) (1,549,000)us-gaap_DeferredTaxLiabilitiesNoncurrent (1,322,000)us-gaap_DeferredTaxLiabilitiesNoncurrent  
Tax benefit realized from exercise of stock options 2,100,000us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions 1,200,000us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions  
Excess tax benefits realized 100,000qada_ExcessTaxBenefitsRealizedDuringPeriod    
Future increase in equity related to excess tax benefits 2,100,000qada_FutureIncreaseInEquityRelatedToExcessTaxBenefits    
Net operating loss carryforwards 35,200,000us-gaap_OperatingLossCarryforwards    
Tax credit carryforwards 10,800,000us-gaap_TaxCreditCarryforwardAmount    
Decrease in reserve for uncertain tax position 700,000us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease    
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Unrecognized tax benefits at beginning of the year 2,626,000us-gaap_UnrecognizedTaxBenefits 2,581,000us-gaap_UnrecognizedTaxBenefits  
Increases as a result of tax positions taken in a prior period 85,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions 45,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions  
Increases as a result of tax positions taken in the current period 27,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions 0us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions  
Reduction as a result of a lapse of the statute of limitations (649,000)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations 0us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations  
Decreases as a result of tax settlements (165,000)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities 0us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities  
Unrecognized tax benefit at end of year 1,924,000us-gaap_UnrecognizedTaxBenefits 2,626,000us-gaap_UnrecognizedTaxBenefits 2,581,000us-gaap_UnrecognizedTaxBenefits
Income Tax Contingency [Line Items]      
Income tax penalties and interest expense 37,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense    
Unrecognized tax benefits, income tax penalties and interest accrued 200,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued    
Unrecognized tax benefits recognized in next twelve months $ 100,000qada_UnrecognizedTaxBenefitsRecognizedInNextTwelveMonths    
U.S. Federal [Member]      
Income Tax Contingency [Line Items]      
Years in which the company is currently under audit FY12 and beyond    
California [Member]      
Income Tax Contingency [Line Items]      
Years in which the company is currently under audit FY11 and beyond    
Michigan [Member]      
Income Tax Contingency [Line Items]      
Years in which the company is currently under audit FY11 and beyond    
New Jersey [Member]      
Income Tax Contingency [Line Items]      
Years in which the company is currently under audit FY11 and beyond    
Australia [Member]      
Income Tax Contingency [Line Items]      
Years in which the company is currently under audit FY11 and beyond    
France [Member]      
Income Tax Contingency [Line Items]      
Years in which the company is currently under audit FY12 and beyond    
India [Member]      
Income Tax Contingency [Line Items]      
Years in which the company is currently under audit FY99 and beyond    
Ireland [Member]      
Income Tax Contingency [Line Items]      
Years in which the company is currently under audit FY11 and beyond    
United Kingdom [Member]      
Income Tax Contingency [Line Items]      
Years in which the company is currently under audit FY12 and beyond