Fair Value Measurements (Details) (USD $)	Mar. 31, 2013	Sep. 30, 2012
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	$ 17,893,000	$ 19,925,000
Derivative Liability, Fair Value, Net, Total	17,893,000
Fair Value, Inputs, Level 1 [Member]
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities
Derivative Liability, Fair Value, Net, Total
Fair Value, Inputs, Level 2 [Member]
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities
Derivative Liability, Fair Value, Net, Total
Fair Value, Inputs, Level 3 [Member]
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	17,893,000
Derivative Liability, Fair Value, Net, Total	$ 17,893,000