RESTATEMENT OF PREVIOUSLY ISSUED FINANCIAL STATEMENTS - Restatement of Consolidated Statements of Operations (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended			12 Months Ended
	Oct. 31, 2012	Oct. 31, 2011		Jul. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Net revenue	$ 200,656	$ 205,908	[1]	$ 739,900
Cost of revenue	181,973	180,437	[1]
Gross profit	18,683	25,471	[1]
Operating expenses:
Selling, general and administrative	25,024	22,198	[1]
Amortization of intangible assets	285	332	[1]
Impairment of goodwill and long-lived assets			[1]
Restructuring, net	1,479	755	[1]
Total operating expenses	26,788	23,285	[1]
Operating income (loss)	(8,105)	2,186	[1]
Other income (expense):
Interest income	78	122	[1]
Interest expense	(99)	(90)	[1]
Other gains	(1,319)	1,225	[1]
Equity in losses of affiliates and impairments	(310)	(427)	[1]
Total other income (expense)	(1,650)	830	[1]
Income (loss) from continuing operations before income taxes	(9,755)	3,016	[1]
Income tax expense	909	1,871	[1]
Income (loss) from continuing operations	(10,664)	1,145	[1]
Discontinued operations, net of income taxes:
Income (loss) from discontinued operations,	4		[1]
Net income (loss)	(10,660)	1,145	[1]
Basic and diluted income (loss) per share:
Income (loss) from continuing operations	$ (0.24)	$ 0.03	[1]
Income (loss) from discontinued operations			[1]
Net income (loss)	$ (0.24)	$ 0.03	[1]
Shares used in computing basic loss per share	43,589	43,315	[1]
Shares used in computing diluted loss per share	43,589	43,318	[1]
As Previously Reported [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenue		206,151
Cost of revenue		180,658
Gross profit		25,493
Operating expenses:
Selling, general and administrative		22,198
Amortization of intangible assets		332
Impairment of goodwill and long-lived assets
Restructuring, net		755
Total operating expenses		23,285
Operating income (loss)		2,208
Other income (expense):
Interest income		122
Interest expense		(88)
Other gains		1,225
Equity in losses of affiliates and impairments		(427)
Total other income (expense)		832
Income (loss) from continuing operations before income taxes		3,040
Income tax expense		1,871
Income (loss) from continuing operations		1,169
Discontinued operations, net of income taxes:
Income (loss) from discontinued operations,
Net income (loss)		1,169
Basic and diluted income (loss) per share:
Income (loss) from continuing operations		$ 0.03
Income (loss) from discontinued operations
Net income (loss)		$ 0.03
Shares used in computing basic loss per share		43,315
Shares used in computing diluted loss per share		43,318
Restatement Pricing Adjustment [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenue		(417)
Gross profit		(417)
Operating expenses:
Impairment of goodwill and long-lived assets
Operating income (loss)		(417)
Other income (expense):
Income (loss) from continuing operations before income taxes		(417)
Income (loss) from continuing operations		(417)
Discontinued operations, net of income taxes:
Income (loss) from discontinued operations,
Net income (loss)		(417)
Basic and diluted income (loss) per share:
Income (loss) from continuing operations		$ (0.01)
Income (loss) from discontinued operations
Net income (loss)		$ (0.01)
Restatement Other Adjustments [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenue		174
Cost of revenue		(221)
Gross profit		395
Operating expenses:
Impairment of goodwill and long-lived assets
Operating income (loss)		395
Other income (expense):
Interest expense		(2)
Total other income (expense)		(2)
Income (loss) from continuing operations before income taxes		393
Income (loss) from continuing operations		393
Discontinued operations, net of income taxes:
Income (loss) from discontinued operations,
Net income (loss)		$ 393
Basic and diluted income (loss) per share:
Income (loss) from continuing operations		$ 0.01
Income (loss) from discontinued operations
Net income (loss)		$ 0.01

[1] As Restated