CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (USD $) In Thousands, unless otherwise specified	Apr. 30, 2015	Jan. 31, 2015
Current assets:
Cash and equivalents	$ 130,864	$ 120,526
Accounts receivable, net of allowances of $2,720 and $2,524 at April 30, 2015 and January 31, 2015, respectively	51,222us-gaap_AccountsReceivableNetCurrent	78,887us-gaap_AccountsReceivableNetCurrent
Deferred tax assets, net	9,266	9,313
Other current assets	15,436	14,799
Total current assets	206,788us-gaap_AssetsCurrent	223,525us-gaap_AssetsCurrent
Property and equipment, net	33,240us-gaap_PropertyPlantAndEquipmentNet	33,154us-gaap_PropertyPlantAndEquipmentNet
Capitalized software costs, net	2,237us-gaap_CapitalizedComputerSoftwareNet	2,485us-gaap_CapitalizedComputerSoftwareNet
Goodwill	10,857us-gaap_Goodwill	10,911us-gaap_Goodwill
Deferred tax assets, net	10,063	9,680
Other assets, net	3,440us-gaap_OtherAssetsNoncurrent	3,614us-gaap_OtherAssetsNoncurrent
Total assets	266,625us-gaap_Assets	283,369us-gaap_Assets
Current liabilities:
Current portion of long-term debt	409us-gaap_NotesAndLoansPayableCurrent	406us-gaap_NotesAndLoansPayableCurrent
Accounts payable	8,281	12,872
Deferred revenue	91,408us-gaap_DeferredRevenueCurrent	102,721us-gaap_DeferredRevenueCurrent
Other current liabilities	26,866us-gaap_OtherLiabilitiesCurrent	35,765us-gaap_OtherLiabilitiesCurrent
Total current liabilities	126,964us-gaap_LiabilitiesCurrent	151,764us-gaap_LiabilitiesCurrent
Long-term debt	14,575us-gaap_LongTermDebtNoncurrent	14,680us-gaap_LongTermDebtNoncurrent
Other liabilities	4,764us-gaap_OtherLiabilitiesNoncurrent	5,219us-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	194,039us-gaap_AdditionalPaidInCapital	185,546us-gaap_AdditionalPaidInCapital
Treasury stock, at cost (1,562,678 shares and 1,609,958 shares at April 30, 2015 and January 31, 2015, respectively)	(22,178)us-gaap_TreasuryStockValue	(22,977)us-gaap_TreasuryStockValue
Accumulated deficit	(44,215)	(43,465)
Accumulated other comprehensive loss	(7,345)	(7,418)
Total stockholders' equity	120,322us-gaap_StockholdersEquity	111,706us-gaap_StockholdersEquity
Total liabilities and stockholders' equity	266,625	283,369
Common Class A [Member]
Common stock:
Common Stock Value	17	16
Common Class B [Member]
Common stock:
Common Stock Value	$ 4	$ 4

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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.