STOCK BASED COMPENSATION Summary of Exercise Prices (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	6 Months Ended
	Mar. 31, 2014
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 2.10
Exercise Price Range, Upper Range Limit	$ 145
Number of Options Outstanding	3,014
Outstanding Options, Weighted Average Remaining Contractual Term	7 years 5 months 19 days
Outstanding Options, Weighted Average Exercise Price	$ 7.67
Number of Exercisable Options	1,687
Exercisable Options, Weighted Average Exercise Price	$ 11.66
$2.10 - $2.26 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 2.10
Exercise Price Range, Upper Range Limit	$ 2.26
Number of Options Outstanding	439
Outstanding Options, Weighted Average Remaining Contractual Term	8 years 11 months 1 day
Outstanding Options, Weighted Average Exercise Price	$ 2.11
Number of Exercisable Options	199
Exercisable Options, Weighted Average Exercise Price	$ 2.10
2.53 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 2.53
Exercise Price Range, Upper Range Limit	$ 2.53
Number of Options Outstanding	995
Outstanding Options, Weighted Average Remaining Contractual Term	9 years 8 months 12 days
Outstanding Options, Weighted Average Exercise Price	$ 2.53
Number of Exercisable Options	124
Exercisable Options, Weighted Average Exercise Price	$ 2.53
2.54 - 4.36 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 2.54
Exercise Price Range, Upper Range Limit	$ 4.36
Number of Options Outstanding	766
Outstanding Options, Weighted Average Remaining Contractual Term	7 years 3 months 3 days
Outstanding Options, Weighted Average Exercise Price	$ 3.45
Number of Exercisable Options	557
Exercisable Options, Weighted Average Exercise Price	$ 3.49
4.60 - 48.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 4.60
Exercise Price Range, Upper Range Limit	$ 47.20
Number of Options Outstanding	604
Outstanding Options, Weighted Average Remaining Contractual Term	5 years 3 months 7 days
Outstanding Options, Weighted Average Exercise Price	$ 8.10
Number of Exercisable Options	597
Exercisable Options, Weighted Average Exercise Price	$ 8.12
48.40 - 145.40 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 48
Exercise Price Range, Upper Range Limit	$ 145
Number of Options Outstanding	210
Outstanding Options, Weighted Average Remaining Contractual Term	10 months 24 days
Outstanding Options, Weighted Average Exercise Price	$ 57.79
Number of Exercisable Options	210
Exercisable Options, Weighted Average Exercise Price	$ 57.79