CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jan. 31, 2015	Jan. 31, 2014
Current assets:
Cash and equivalents	$ 120,526	$ 75,984
Accounts receivable, net of allowances of $2,524 and $2,450 at January 31, 2015 and 2014, respectively	78,887us-gaap_AccountsReceivableNetCurrent	71,337us-gaap_AccountsReceivableNetCurrent
Deferred tax assets, net	9,313	8,133
Other current assets	14,799	14,980
Total current assets	223,525us-gaap_AssetsCurrent	170,434us-gaap_AssetsCurrent
Property and equipment, net	33,154us-gaap_PropertyPlantAndEquipmentNet	33,085us-gaap_PropertyPlantAndEquipmentNet
Capitalized software costs, net	2,485us-gaap_CapitalizedComputerSoftwareNet	3,315us-gaap_CapitalizedComputerSoftwareNet
Goodwill	10,911us-gaap_Goodwill	11,377us-gaap_Goodwill
Deferred tax assets, net	9,680	11,788
Other assets, net	3,614us-gaap_OtherAssetsNoncurrent	4,814us-gaap_OtherAssetsNoncurrent
Total assets	283,369us-gaap_Assets	234,813us-gaap_Assets
Current liabilities:
Current portion of long-term debt	406us-gaap_NotesAndLoansPayableCurrent	389us-gaap_NotesAndLoansPayableCurrent
Accounts payable	12,872	11,042
Deferred revenue	102,721us-gaap_DeferredRevenueCurrent	104,160us-gaap_DeferredRevenueCurrent
Other current liabilities	35,765us-gaap_OtherLiabilitiesCurrent	34,199us-gaap_OtherLiabilitiesCurrent
Total current liabilities	151,764us-gaap_LiabilitiesCurrent	149,790us-gaap_LiabilitiesCurrent
Long-term debt	14,680us-gaap_LongTermDebtNoncurrent	15,085us-gaap_LongTermDebtNoncurrent
Other liabilities	5,219us-gaap_OtherLiabilitiesNoncurrent	5,733us-gaap_OtherLiabilitiesNoncurrent
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.001 par value; Authorized 5,000,000 shares; none issued or outstanding	0us-gaap_PreferredStockValue	0us-gaap_PreferredStockValue
Common stock:
Additional paid-in capital	185,546us-gaap_AdditionalPaidInCapital	150,837us-gaap_AdditionalPaidInCapital
Treasury stock, at cost (1,609,958 shares and 1,930,436 shares at January 31, 2015 and 2014, respectively)	(22,977)us-gaap_TreasuryStockValue	(28,220)us-gaap_TreasuryStockValue
Accumulated deficit	(43,465)	(51,472)
Accumulated other comprehensive loss	(7,418)	(6,958)
Total stockholders' equity	111,706us-gaap_StockholdersEquity	64,205us-gaap_StockholdersEquity
Total liabilities and stockholders' equity	283,369	234,813
Common Class A [Member]
Common stock:
Common Stock Value	16	14
Common Class B [Member]
Common stock:
Common Stock Value	$ 4	$ 4

Name:	qada_CommonStockAbstract
Namespace Prefix:	qada_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.