Income Taxes (Details 5) (USD $)	Sep. 30, 2013
Net operating loss carryforwards
Net operating loss carryforwards	$ 314,673,000
2023
Net operating loss carryforwards
Net operating loss carryforwards	239,595,000
2024
Net operating loss carryforwards
Net operating loss carryforwards	37,101,000
2025
Net operating loss carryforwards
Net operating loss carryforwards	34,055,000
2031
Net operating loss carryforwards
Net operating loss carryforwards	657,000
2032
Net operating loss carryforwards
Net operating loss carryforwards	1,572,000
2033
Net operating loss carryforwards
Net operating loss carryforwards	$ 1,693,000