Net Loss per Common Share (Details) (USD $) In Thousands, except Share data	3 Months Ended		12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Net Loss per Common Share [Abstract]
Net loss	$ (11,736)	$ (15,468)
Weighted average shares outstanding (in shares)	94,065,000	92,689,000
Dilutive impact from:
Share-based payment awards (in shares)	0	0
Warrants (in shares)	0	0
Dilutive weighted average shares outstanding	94,065,000	92,689,000
Loss per share
Basic (in dollars per share)	$ (0.12)	$ (0.17)
Dilutive (in dollars per share)	$ (0.12)	$ (0.17)
Warrants [Abstract]
Number of securities called by warrants (in shares)				7,267,286
Number of warrants exercised prior to fiscal 2011 (in shares)				6,636,646
Common stock issued upon exercise of warrants prior to fiscal 2011 (in shares)				4,869,539
Number of warrants exercised (in shares)			630,640
Common stock issued upon exercise of warrants (in shares)			424,753
Warrants outstanding (in shares)	0		0
Potential common shares excluded from the calculation of diluted weighted average shares [Abstract]
Employee equity awards (in shares)	7,013	8,246