Income tax reconciliation foreign withholding taxes.

No definition available.

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- Definition

Income tax reconciliation permanent differences.

+ References

No definition available.

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- Definition

Income tax reconciliation potential tax penalties and interest resulting from uncertain tax positions.

+ References

No definition available.

+ Details

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(h))

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph h

-Article 4

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Income Tax Expense (or Benefit)

-URI http://asc.fasb.org/extlink&oid=6515339

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (a),(b)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319

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- Definition

Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319

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-Topic 740

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- Definition

Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

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-Topic 740

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-Paragraph 15

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-Topic 740

-SubTopic 10

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-Paragraph 12

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-Name Regulation S-X (SX)

-Number 210

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-Subparagraph 1

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- Definition

The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319

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-Name Regulation S-X (SX)

-Number 210

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-Subparagraph 2

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Income Taxes - Reconciliation of Expected to Actual Income Tax Expense (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2015	Jan. 31, 2014	Jan. 31, 2013
Reconciliation of expected to actual income tax expense
Federal income tax (benefit) expense at 34%									$ (3,463)	$ 2,049	$ 4,598
Changes in tax rates										22	23
Permanent differences									(224)	132	(741)
Foreign effective tax rate differential									540	(1,884)	(3,092)
Potential tax, penalties and interest resulting from uncertain tax positions									(172)	32	(5,059)
Foreign withholding taxes									920	642
Valuation allowance on deferred tax assets									1,379
Other									26	265
Income tax expense (benefit)	$ (1,484)us-gaap_IncomeTaxExpenseBenefit	$ 57us-gaap_IncomeTaxExpenseBenefit	$ (676)us-gaap_IncomeTaxExpenseBenefit	$ 1,109us-gaap_IncomeTaxExpenseBenefit	$ 397us-gaap_IncomeTaxExpenseBenefit	$ (478)us-gaap_IncomeTaxExpenseBenefit	$ (273)us-gaap_IncomeTaxExpenseBenefit	$ 1,612us-gaap_IncomeTaxExpenseBenefit	$ (994)us-gaap_IncomeTaxExpenseBenefit	$ 1,258us-gaap_IncomeTaxExpenseBenefit	$ (3,527)us-gaap_IncomeTaxExpenseBenefit