SHARE-BASED COMPENSATION - Summary of stock option activity (Details) (USD $)	6 Months Ended			12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 2011 Long Term Incentive Plan and 2007 Equity Incentive Plan Stock Options	Sep. 30, 2012 2011 Long Term Incentive Plan and 2007 Equity Incentive Plan Stock Options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Shares, Outstanding at September 30, 2012			1,142,000
Shares, Granted	120,000	280,000	120,000
Shares, Exercised
Shares, Forfeited			(365,000)
Shares, Expired
Shares, Outstanding at March 31, 2013			897,000	1,142,000
Shares, Options expected to vest			435,150
Shares, Options vested and exercisable			414,700
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted average exercise price, Outstanding at September 30, 2012			$ 3.31
Weighted average exercise price, Granted			$ 1.14
Weighted average exercise price, Exercised
Weighted average exercise price, Forfeited			$ 3.43
Weighted average exercise price, Expired
Weighted average exercise price, Outstanding at March 31, 2013			$ 2.98	$ 3.31
Weighted average exercise price, Option expected to vest			$ 2.90
Weighted average exercise price, Options vested and exercisable			$ 3.04
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term [Roll Forward]
Weighted average remaining contractual term (Years), Outstanding			6 years 3 months 18 days	4 years 3 months 18 days
Weighted average remaining contractual term (Years), Granted			9 years 1 month 6 days
Weighted average remaining contractual term (Years), expected to vest			8 years 8 months 12 days
Weighted average remaining contractual term (Years), vested and exercisable			4 years 7 months 6 days
Aggregate intrinsic value, Outstanding
Aggregate intrinsic value, Options expected to vest
Aggregate intrinsic value, Options vested and exercisable