Stock Options (Details Textual) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	1 Months Ended				12 Months Ended				12 Months Ended
	Jun. 30, 2013	Jul. 31, 2012	Jun. 30, 2012	Aug. 31, 2011	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011	Jun. 25, 2010	Sep. 30, 2013 Minimum [Member]	Sep. 30, 2010 Minimum [Member]	Sep. 30, 2013 Maximum [Member]	Sep. 30, 2010 Maximum [Member]
Stock Options And Stock-Based Employee Compensation [Line Items]
Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price, Percentage					85.00%
Class of Warrant or Right, Exercise Price of Warrants or Rights								10.25	8.35		8.78
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants In Period, Gross	10	655	100	35	10	755	35
Share based Compensation Arrangement By Share Based Payment Award Options Strike Price	$ 8.70	$ 8.35	$ 8.78	$ 7.15
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Fair Value	$ 11,670	$ 966,493	$ 160,488	$ 49,521
Share Based Compensation Arrangement By Share Based Payment Award Options Exchanged Number		442,500
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	1 year 6 months	1 year 6 months	1 year 6 months	1 year 6 months					1 year	2 years	3 years	5 years
Allocated Share-based Compensation Expense					847,183	314,761	8,254
Unallocated Share Based Compensation Expense					$ 8,753