Notes Payable (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended	12 Months Ended			0 Months Ended
	Jun. 12, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011	Jun. 12, 2013 Notes Payable [Member]	Mar. 31, 2013 Warrant [Member]	Feb. 28, 2013 Warrant [Member]	Mar. 31, 2013 Warrant [Member] Notes Payable [Member]	Feb. 28, 2013 Warrant [Member] Notes Payable [Member]
Debt Instrument [Line Items]
Unsecured notes								$ 6,750	$ 6,750
Stated interest rate								10.00%
Interest paid		947	625	524	252
Warrants issued						86	86
Exercise price of warrants						13.92	13.92
Exercise price of warrants as a percentage of public offering share price						90.00%	90.00%
Maximum period before warrants are exercisable		180 days
Fair value of warrants						454	435
Interest expense	$ 405	$ 3,642	$ 1,526	$ 6,588