A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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- Definition

This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

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INCOME TAXES (Details) (USD $)	3 Months Ended		12 Months Ended
INCOME TAXES (Details) (USD $)	Apr. 30, 2013	Apr. 30, 2012	Jan. 31, 2013
Income Tax Contingency [Line Items]
Income tax (benefit) expense	$ (291,000)	$ 1,541,000	$ 1,500,000
Effective income tax rate (in hundredths)	19.00%	46.00%
Estimated annual effective tax rate (in hundredths)	30.00%	30.00%
Unrecognized tax benefits that will impact effective tax rate	2,700,000
Unrecognized tax benefits recognized in next twelve months	200,000
Unrecognized tax benefits, income tax penalties and interest accrued	$ 300,000
California [Member]
Income Tax Contingency [Line Items]
Open tax years	2004 and 2005
India [Member]
Income Tax Contingency [Line Items]
Open tax years	Years ended March 31, 1998, 1999, 2008, 2009, 2010 and 2011
South Africa and Thailand [Member]
Income Tax Contingency [Line Items]
Open tax years	2012