STOCK BASED COMPENSATION Schedule of stock option by exercise price range (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2014
$2.10 - $145.40
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Price, Lower Limit (in dollars per share)	$ 2.10
Range of Exercise Price, Upper Limit (in dollars per share)	$ 145
Number of Outstanding Options (in shares)	2,940
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	7 years
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 7.46
Number of Exercisable Options (in shares)	1,633
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 11.36
$2.10 - $2.26
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Price, Lower Limit (in dollars per share)	$ 2.10
Range of Exercise Price, Upper Limit (in dollars per share)	$ 2.26
Number of Outstanding Options (in shares)	424
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	8 years 5 months 4 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 2.11
Number of Exercisable Options (in shares)	194
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 2.10
2.53
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Price, Lower Limit (in dollars per share)	$ 2.53
Range of Exercise Price, Upper Limit (in dollars per share)	$ 2.53
Number of Outstanding Options (in shares)	987
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	9 years 2 months 8 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 2.53
Number of Exercisable Options (in shares)	116
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 2.53
2.54 - 4.36
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Price, Lower Limit (in dollars per share)	$ 2.54
Range of Exercise Price, Upper Limit (in dollars per share)	$ 4.36
Number of Outstanding Options (in shares)	743
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	6 years 8 months 26 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 3.45
Number of Exercisable Options (in shares)	542
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 3.49
4.60 - 47.20
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Price, Lower Limit (in dollars per share)	$ 4.60
Range of Exercise Price, Upper Limit (in dollars per share)	$ 47.20
Number of Outstanding Options (in shares)	589
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	4 years 9 months 29 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 7.84
Number of Exercisable Options (in shares)	583
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 7.87
48.00 - 145.40
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Price, Lower Limit (in dollars per share)	$ 48
Range of Exercise Price, Upper Limit (in dollars per share)	$ 145
Number of Outstanding Options (in shares)	197
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	5 months 4 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 57.56
Number of Exercisable Options (in shares)	198
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 57.56