CONSOLIDATED STATEMENTS OF STOCKHOLDERS' DEFICIT (USD $) In Thousands, except Share data, unless otherwise specified	Total	Preferred Stock	Common Stock	Additional Paid-in-Capital	Accumulated Deficit
Balance at Sep. 30, 2011	$ (28,459)	$ 1	$ 245	$ 1,824,433	$ (1,853,138)
Balance (in shares) at Sep. 30, 2011		134,720	24,470,280
Increase (Decrease) in Stockholders' Equity
Net loss	(7,041)				(7,041)
Compensation expense related to stock options, awards and ESPP	2,209			2,209
Issuance of common stock upon exercise of stock options	8		0	8
Issuance of common stock upon exercise of stock options (in shares)			2,922
Issuance of shares under ESPP	868		3	865
Issuance of shares under ESPP (in shares)			334,646
Release of restricted stock units	0		7	(7)
Release of restricted stock units (in shares)			685,479
Repurchase and retirement of restricted stock units for payroll taxes	(626)		(2)	(624)
Repurchase and retirement of restricted stock units for payroll taxes (in shares)			(202,269)
Balance at Mar. 31, 2012	$ (33,041)	$ 1	$ 253	$ 1,826,884	$ (1,860,179)
Balance (in shares) at Mar. 31, 2012		134,720	25,291,058