SHARE-BASED PAYMENTS (Details 2) (USD $)	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Components of the total share-based compensation
Total share-based compensation (benefit) expense for liability-based awards	$ (103,000)	$ 404,000
Equity-classified share options
Shares
Outstanding at the beginning of the period (in shares)	60,000
Outstanding at the end of the period (in shares)	60,000
Exercisable at the end of period (in shares)	60,000
Weighted-Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 8.62
Outstanding at the end of the period (in dollars per share)	$ 8.62
Exercisable at the end of period (in dollars per share)	$ 8.62
Weighted-Average Remaining Contractual Term
Options outstanding, weighted average contractual life	2 years 2 months 12 days
Options exercisable, weighted average contractual life	2 years 2 months 12 days
Liability-classified share options
Shares
Outstanding at the beginning of the period (in shares)	755,375
Exercised (in shares)		(43,125)
Outstanding at the end of the period (in shares)	755,375	755,375
Exercisable at the end of period (in shares)	591,625
Weighted-Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 8.40
Outstanding at the end of the period (in dollars per share)	$ 8.40	$ 8.40
Exercisable at the end of period (in dollars per share)	$ 9.53
Weighted-Average Remaining Contractual Term
Options outstanding, weighted average contractual life	5 years 4 months 24 days
Options exercisable, weighted average contractual life	5 years
Share-based payments, additional disclosures
Total unrecognized compensation cost	52,000
Period over which unrecognized compensation cost is expected to be recognized	1 year 2 months 12 days
Assumptions used in estimating fair value
Expected volatility range, minimum (as a percent)	59.20%	56.50%
Expected volatility range, maximum (as a percent)	66.80%	71.00%
Weighted-average volatility (as a percent)	62.20%	63.10%
Expected dividends (as a percent)	0.00%	0.00%
Risk-free interest rate, minimum (as a percent)	0.20%	0.40%
Risk-free interest rate, maximum (as a percent)	1.00%	1.70%
Components of the total share-based compensation
Due to vesting	105,000	253,000
Due to remeasurement	(208,000)	151,000
Total share-based compensation (benefit) expense for liability-based awards	(103,000)	404,000
Cash feature of non-qualified options exercised (in shares)		43,125
Total intrinsic value of options exercised		$ 130,000
Liability-classified share options | Minimum
Assumptions used in estimating fair value
Expected term	2 years 2 months 12 days	3 years 2 months 12 days
Liability-classified share options | Maximum
Assumptions used in estimating fair value
Expected term	7 years 2 months 12 days	8 years 2 months 12 days