STOCK BASED COMPENSATION Activity under all stock option plans (Details) (USD $)	9 Months Ended	12 Months Ended
	Jun. 30, 2012	Sep. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, Shares, Beginning balance	1,699,183
Options outstanding, Weighted average exercise price, Beginning balance	$ 29.77
Options outstanding,Weighted average remaining contractual life (in years), Beginning balance	6 years 10 months 2 days	6 years 4 months 13 days
Shares, Granted	389,182
Weighted average exercise price, Granted	$ 2.55
Shares, Exercised	(6,047)
Weighted average exercise price, Exercised	$ 2.54
Shares, Cancelled or expired	(273,770)
Weighted average exercise price, Cancelled or expired	$ 78.25
Options outstanding, Shares, Ending balance	1,808,548	1,699,183
Options outstanding, Weighted average exercise price, Ending balance	$ 16.67	$ 29.77
Options outstanding, Weighted average remaining contractual life (in years), Ending balance	6 years 10 months 2 days	6 years 4 months 13 days
Options outstanding, Aggregate intrinsic value, Ending balance	$ 38,316
Options exercisable, Shares, Ending balance	992,566
Options exercisable, Weighted average exercise price, Ending balance	$ 27.13
Options exercisable, Weighted average remaining contractual life (in years), Ending balance	5 years 4 months 13 days
Aggregate intrinsic value, Options exercisbale	$ 8,884
Closing stock price used to calculate total pretax intrinsic value	$ 2.65
In-the-money stock options exercisable	100,000