Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 30, 2015	Apr. 30, 2014	Apr. 30, 2015	Apr. 30, 2014
Net revenue	$ 106,234	$ 173,274	$ 441,988	$ 558,700
Cost of revenue	97,222	157,575	397,544	498,426
Gross profit	9,012	15,699	44,444	60,274
Operating expenses
Selling, general and administrative	14,439	17,100	44,600	54,787
Amortization of intangible assets	131	269	667	829
Impairment of long-lived assets				500
Restructuring, net	1,994	3,468	4,936	5,440
Total operating expenses	16,564	20,837	50,203	61,556
Operating loss	(7,552)	(5,138)	(5,759)	(1,282)
Other income (expense):
Interest income	247	159	666	326
Interest expense	(2,613)	(2,049)	(7,899)	(2,461)
Other gains, net	3,523	(507)	6,761	(316)
Impairment of investments in affiliates	(5,017)	(1,243)	(5,017)	(1,420)
Total other income (expense)	(3,860)	(3,640)	(5,489)	(3,871)
Loss from continuing operations before income taxes	(11,412)	(8,778)	(11,248)	(5,153)
Income tax expense	694	700	2,400	2,590
Equity in (gains) losses of affiliates, net of tax			(208)	134
Loss from continuing operations	(12,106)	(9,478)	(13,440)	(7,877)
Discontinued operations, net of income taxes:
Income from discontinued operations				80
Net loss	$ (12,106)	$ (9,478)	$ (13,440)	$ (7,797)
Basic and diluted net income per share:
Loss from continuing operations	$ (0.23)	$ (0.18)	$ (0.26)	$ (0.15)
Income from discontinued operations	$ 0	$ 0	$ 0	$ 0
Net loss	$ (0.23)	$ (0.18)	$ (0.26)	$ (0.15)
Weighted average common shares used in:
Basic earnings per share	51,750	51,498	51,917	51,502
Diluted earnings per share	51,750	51,498	51,917	51,502