Stock-based Compensation, Equity Grants, and Warrants - Stock Option Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Number of Shares
Outstanding at the beginning of the period (in shares)	2,324
Granted (in shares)
Cancelled (in shares)	(100)
Outstanding at the end of the period (in shares)	2,224	2,336
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
Weighted Average Remaining Contractual Term
Weighted Average Remaining Contractual Term	6 years 3 months 4 days	6 years 9 months 22 days
Aggregate Intrinsic Value
Outstanding at the beginning of the period (in dollars)	$ 3,649
Outstanding at the end of the period (in dollars)	$ 5,711