Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income
Balance at Jul. 31, 2011	$ 214,542	$ 438	$ 7,387,135	$ (7,198,667)	$ 25,636
Balance, shares at Jul. 31, 2011		43,829,097
Net Loss	(38,108)			(38,108)
Issuance of common stock pursuant to employee stock purchase plan and stock option exercises, shares		45,977
Issuance of common stock pursuant to employee stock purchase plan and stock option exercises	91		91
Restricted stock grants, shares		217,359
Restricted stock grants		2	(2)
Restricted stock forfeitures, shares		(165,811)
Restricted stock forfeitures	(188)	(1)	(187)
Share-based compensation	2,990		2,990
Other comprehensive items	(14,195)				(14,195)
Balance at Jul. 31, 2012	165,132	439	7,390,027	(7,236,775)	11,441
Balance, shares at Jul. 31, 2012		43,926,622
Net Loss	(40,355)			(40,355)
Issuance of common stock to Steel Partners Holdings, L.P., shares		7,500,000
Issuance of common stock to Steel Partners Holdings, L.P., net of transaction costs of $2.3 million	27,675	75	27,600
Issuance of common stock pursuant to employee stock purchase plan and stock option exercises, shares		11,986
Issuance of common stock pursuant to employee stock purchase plan and stock option exercises	31		31
Restricted stock grants, shares		278,220
Restricted stock grants		3	(3)
Restricted stock forfeitures, shares		(140,935)
Restricted stock forfeitures	(158)	(1)	(157)
Share-based compensation	2,308		2,308
Other comprehensive items	2,272				2,272
Balance at Jul. 31, 2013	156,905	516	7,419,806	(7,277,130)	13,713
Balance, shares at Jul. 31, 2013	51,575,893	51,575,893
Net Loss	(16,282)			(16,282)
Equity portion of convertible senior notes	27,163		27,163
Issuance of common stock pursuant to employee stock purchase plan and stock option exercises, shares		354,711
Issuance of common stock pursuant to employee stock purchase plan and stock option exercises	1,368	3	1,365
Restricted stock grants, shares		184,130
Restricted stock grants		2	(2)
Restricted stock forfeitures, shares		(13,971)
Restricted stock forfeitures	(45)		(45)
Share-based compensation	2,254		2,254
Other comprehensive items	255				255
Balance at Jul. 31, 2014	$ 171,618	$ 521	$ 7,450,541	$ (7,293,412)	$ 13,968
Balance, shares at Jul. 31, 2014	52,100,763	52,100,763