Stock-Based Compensation and Employee Benefit Plans (Details 2) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2014
124
Stock-Based Compensation and Employee Benefit Plans
Exercise price (in dollars per share)	$ 124
Options Outstanding
Shares Outstanding	87,047
Weighted Average Remaining Contractual Life	4 years 10 months 24 days
Weighted Average Exercise Price (in dollars per share)	$ 124
Options Exercisable
Shares Exercisable	43,090
Weighted Average Exercise Price (in dollars per share)	$ 124
Intrinsic value	$ 15,056
299
Stock-Based Compensation and Employee Benefit Plans
Exercise price (in dollars per share)	$ 299
Options Outstanding
Shares Outstanding	29,890
Weighted Average Remaining Contractual Life	7 years 9 months 18 days
Weighted Average Exercise Price (in dollars per share)	$ 299
Options Exercisable
Shares Exercisable	5,664
Weighted Average Exercise Price (in dollars per share)	$ 299
Intrinsic value	988
396
Stock-Based Compensation and Employee Benefit Plans
Exercise price (in dollars per share)	$ 396
Options Outstanding
Shares Outstanding	10,630
Weighted Average Remaining Contractual Life	8 years 7 months 6 days
Weighted Average Exercise Price (in dollars per share)	$ 396
Options Exercisable
Shares Exercisable	1,456
Weighted Average Exercise Price (in dollars per share)	$ 396
Intrinsic value	$ 112
473
Stock-Based Compensation and Employee Benefit Plans
Exercise price (in dollars per share)	$ 473
Options Outstanding
Shares Outstanding	12,080
Weighted Average Remaining Contractual Life	9 years 7 months 6 days
Weighted Average Exercise Price (in dollars per share)	$ 473
Options Exercisable
Shares Exercisable	150
Weighted Average Exercise Price (in dollars per share)	$ 473