Stock-based Compensation, Equity Grants, and Warrants - Stock Option Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016
Number of Shares
Outstanding at the beginning of the period (in shares)	2,226
Granted (in shares)	0
Cancelled (in shares)	0
Outstanding at the end of the period (in shares)	2,226	2,226
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 1.43
Outstanding at the end of the period (in dollars per share)	$ 1.43	$ 1.43
Weighted Average Remaining Contractual Term
Weighted Average Remaining Contractual Term	5 years 7 months 6 days	5 years 9 months 18 days
Aggregate Intrinsic Value
Outstanding at the beginning of the period (in dollars)	$ 7,581
Outstanding at the end of the period (in dollars)	$ 10,363	$ 7,581