STOCK BASED COMPENSATION Activity under all stock option plans (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, Shares, Beginning balance	2,089,000	1,813,000	1,699,000
Options outstanding, Weighted average exercise price, Beginning balance	$ 13.43	$ 16.57	$ 29.77
Options outstanding,Weighted average remaining contractual life (in years), Beginning balance	7 years	6 years 8 months 1 day	6 years 7 months 10 days	6 years 4 months 13 days
Options outstanding, Aggregate intrinsic value, Beginninging balance	$ 591	$ 2	$ 0
Shares, Granted	1,014,000	464,000	401,000
Weighted average exercise price, Granted	$ 2.53	$ 2.12	$ 2.55
Shares, Exercised	(52,000)	(9,000)	(6,000)
Weighted average exercise price, Exercised	$ 2.36	$ 2.24	$ 2.54
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	64	6	3
Shares, Cancelled or expired	(111,000)	(179,000)	(281,000)
Weighted average exercise price, Cancelled or expired	$ 76.55	$ 16.52	$ 76.87
Options outstanding, Shares, Ending balance	2,940,000	2,089,000	1,813,000	1,699,000
Options outstanding, Weighted average exercise price, Ending balance	$ 7.46	$ 13.43	$ 16.57	$ 29.77
Options outstanding, Weighted average remaining contractual life (in years), Ending balance	7 years	6 years 8 months 1 day	6 years 7 months 10 days	6 years 4 months 13 days
Options outstanding, Aggregate intrinsic value, Ending balance	2,059	591	2	0
Options exercisable, Shares, Ending balance	1,633,000
Options exercisable, Weighted average exercise price, Ending balance	$ 11.36
Options exercisable, Weighted average remaining contractual life (in years), Ending balance	5 years 7 months 17 days
Aggregate intrinsic value, Options exercisbale	$ 668
In-the-money stock options exercisable	$ 3.60	$ 3.04	$ 2.44
Share-based Compensation Arrangement by Share-based Payment Award, In The Money Stock Options That Were Exercisable	600,000