Stock-based Compensation, Equity Grants, and Warrants - Stock Option Activity (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Number of Shares
Outstanding at the beginning of the period (in shares)	2,380		2,218
Granted (in shares)	0
Cancelled (in shares)	(44)
Outstanding at the end of the period (in shares)	2,336	2,380	2,218
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 1.40
Granted (in dollars per share)
Cancelled (in dollars per share)	$ 1.40
Outstanding at the end of the period (in dollars per share)	$ 1.40	$ 1.40
Weighted Average Remaining Contractual Term
Outstanding at the beginning of the period	7 years 6 months 11 days	7 years 9 months 18 days
Outstanding at the end of the period	7 years 6 months 11 days	7 years 9 months 18 days
Aggregate Intrinsic Value
Outstanding at the beginning of the period (in dollars)	$ 1,589
Outstanding at the end of the period (in dollars)	$ 1,727	$ 1,589