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FAIR VALUE MEASUREMENTS AND DERIVATIVE LIABILITY Compound embedded derivative liability activity (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Dec. 31, 2011
Derivative [Line Items]          
Fair Value Inputs, Discount Rate 6.40% 6.50%      
Derivative Financial Instruments, Liabilities
         
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Compound embedded derivative liability, beginning balance     $ 2,899 $ 7,796 $ 9,778
Transfer to equity (2,096) 0      
Total net gains included in earnings     (803) 1,982  
Compound embedded derivative liability, ending balance $ 0   $ 0   $ 9,778