Stock Option Plans, Shares Reserved and Warrants (Details 3)	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total Shares Reserved	38,878,726
Non-Plan Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total Shares Reserved	100,714
2009 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total Shares Reserved	23,239,344
Warrants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total Shares Reserved	15,538,668