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		135	24,471
Increase (Decrease) in Stockholders' Equity
Net loss	(2,330)				(2,330)
Compensation expense related to stock options, awards and ESPP	3,301			3,301
Issuance of common stock upon exercise of stock options	16			16
Issuance of common stock upon exercise of stock options (in shares)			6
Issuance of shares under ESPP	868		3	865
Issuance of shares under ESPP (in shares)			335
Release of restricted stock units	0		7	(7)
Release of restricted stock units (in shares)			709
Repurchase and retirement of restricted stock units for payroll taxes	(633)		(2)	(631)
Repurchase and retirement of restricted stock units for payroll taxes (in shares)			(206)
Balance at Jun. 30, 2012	$ (27,237)	$ 1	$ 253	$ 1,827,977	$ (1,855,468)
Balance (in shares) at Jun. 30, 2012		135	25,315