SHARE-BASED PAYMENT (Details) (USD $)	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Shares under option [Abstract]
Options outstanding at September 30, 2012 (in shares)	2,666,232
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options granted (in shares)	482,000
Shares under option [Abstract]
Options outstanding at September 1, 2011 (in shares)	3,083,000
Granted (in shares)	482,000
Exercised (in shares)	0
Forfeitures or expirations (in shares)	(405,000)
Options outstanding at September 30, 2012 (in shares)	3,160,000
Options vested and expected to vest at September 30, 2012 (in shares)	2,658,000
Options exercisable at September 30, 2012 (in shares)	1,471,000
Weighted-average Exercise price [Abstract]
Options outstanding at September 30, 2011 (in dollars per share)	$ 6.42
Granted (in dollars per share)	$ 3.67
Exercised (in dollars per share)	$ 0
Forfeitures or expirations (in dollars per share)	$ 6.92
Options outstanding at September 30, 2012 (in dollars per share)	$ 5.94
Options vested and expected to vest at September 30, 2012 (in dollars per share)	$ 5.96
Options exercisable at September 30, 2012 (in dollars per share)	$ 7.07
Weighted-average Remaining contractual term [Abstract]
Options outstanding at September 30, 2012	7 years 5 months
Options vested and expected to vest at September 30, 2012	7 years 4 months
Options exercisable at September 30, 2012	6 years 2 months
Aggregate intrinsic value [Abstract]
Options outstanding at September 30, 2012	$ 0
Options vested and expected to vest at September 30, 2012	0
Options exercisable at September 30, 2012	0
Restricted Stock Units [Member] | Director [Member]
Aggregate intrinsic value [Abstract]
Stock-based compensation expense	1,400,000	1,000,000	900,000
Unrecognized compensation cost related to stock options	2,400,000
Weighted-average period for recognition of compensation cost	2 years 7 months
Reversal of stock based compensation expense		1,500,000
Restricted stock units granted annually (in shares)	9,000
Restricted stock units awards outstanding [Abstract]
Total restricted stock units awarded	63,000	135,000
Restricted Shares Vested	(135,000)
Restricted Shares Granted	63,000
Vesting date	Apr. 08, 2010
Number of restricted stock units considered for cash payment (in shares)	9,000
Number of Board Members not standing for re-election	2
Expense related to the restricted stock unit awards [Abstract]
Expense recognized	1,400,000	1,000,000	900,000
Performance stock units approved for issuance (in shares)	800,000
Restricted Stock Units [Member] | Director [Member] | Annual Meeting2012 [Member]
Aggregate intrinsic value [Abstract]
Stock-based compensation expense	142,000
Expense related to the restricted stock unit awards [Abstract]
Expense recognized	142,000
RSU Expense Through September 30, 2012	142,000
Restricted Stock Units [Member] | Director [Member] | 2011 annual meeting [Member]
Aggregate intrinsic value [Abstract]
Stock-based compensation expense	93,000
Expense related to the restricted stock unit awards [Abstract]
Expense recognized	93,000
RSU Expense Through September 30, 2012	299,000
Estimated expense to be recognized through vesting date	299,000
Restricted Stock Units [Member] | Director [Member] | 2009 annual meeting [Member]
Aggregate intrinsic value [Abstract]
Stock-based compensation expense	111,000
Expense related to the restricted stock unit awards [Abstract]
Expense recognized	111,000
RSU Expense Through September 30, 2012	416,000
Estimated expense to be recognized through vesting date	416,000
Restricted Stock Units [Member] | Director [Member] | 2010 annual meeting [Member]
Aggregate intrinsic value [Abstract]
Stock-based compensation expense	0
Expense related to the restricted stock unit awards [Abstract]
Expense recognized	0
RSU Expense Through September 30, 2012	280,000
Estimated expense to be recognized through vesting date	280,000
Amended And Restated 2004 Stock Incentive Plan [Member] | Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock available for future issuance under the Plan	1,272,474
Number of options granted (in shares)	482,250
Weighted-average assumptions we used to calculate fair value of share-based options using the Black-Scholes model [Abstract]
Expected period that options will be outstanding (in years)	5 years	5 years	5 years
Interest rate (based on U.S. Treasury yields at time of grant) (in hundredths)	0.89%	1.75%	1.40%
Volatility (in hundredths)	48.77%	46.80%	45.50%
Dividend yield (in hundredths)	0.00%	0.00%	0.00%
Weighted-average fair value of options granted (in dollars per share)	$ 1.57	$ 2.22	$ 2.08
Weighted-average intrinsic value of options exercised	$ 0	$ 119,000	$ 24,000
Shares under option [Abstract]
Granted (in shares)	482,250
Amended And Restated 2004 Stock Incentive Plan [Member] | Stock Options [Member] | In and After August 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Percentage of shares vesting on the first anniversary of the grant date (in hundredths)	25.00%
Additional shares vesting each month until the fourth anniversary (in hundredths)	2.08%
Expiration period from grant date	10 years
Amended And Restated 2004 Stock Incentive Plan [Member] | Stock Options [Member] | Prior to August 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	5 years
Percentage of shares vesting on the first anniversary of the grant date (in hundredths)	20.00%
Expiration period from grant date	10 years
Percentage of shares vesting on each of the first five anniversaries of the grant date (in hundredths)	20.00%
Inducement Grant [Member] | Stock Options [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares vesting on the first anniversary of the grant date (in hundredths)	25.00%
Additional shares vesting each month until the fourth anniversary (in hundredths)	2.08%
Expiration period from grant date	10 years
Number of options granted (in shares)			100,000
Weighted-average assumptions we used to calculate fair value of share-based options using the Black-Scholes model [Abstract]
Expected period that options will be outstanding (in years)	5 years
Interest rate (based on U.S. Treasury yields at time of grant) (in hundredths)	1.59%
Volatility (in hundredths)	46.21%
Dividend yield (in hundredths)	0.00%
Weighted-average fair value of options granted (in dollars per share)	$ 1.95
Shares under option [Abstract]
Granted (in shares)			100,000
Inducement Grant [Member] | Stock Options [Member] | Chief Financial Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares vesting on the first anniversary of the grant date (in hundredths)	25.00%
Additional shares vesting each month until the fourth anniversary (in hundredths)	2.08%
Expiration period from grant date	10 years
Number of options granted (in shares)		250,000
Weighted-average assumptions we used to calculate fair value of share-based options using the Black-Scholes model [Abstract]
Expected period that options will be outstanding (in years)	5 years
Interest rate (based on U.S. Treasury yields at time of grant) (in hundredths)	1.40%
Volatility (in hundredths)	45.50%
Dividend yield (in hundredths)	0.00%
Weighted-average fair value of options granted (in dollars per share)	$ 2.08
Shares under option [Abstract]
Granted (in shares)		250,000