Equity Transactions - Fair Value (Details) - USD ($)	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Intrinsic value and weighted average remaining contractual life in years of outstanding and exercisable options
Stock price (in dollars per share)	$ 11.24
Employee and director options
Fair value assumptions
Expected volatility (as a percent)		71.90%
Expected volatility, minimum (as a percent)	51.50%		50.90%
Expected volatility, maximum (as a percent)	58.60%	77.90%
Risk free interest rate, minimum (as a percent)	0.50%	0.26%	0.10%
Risk free interest rate, maximum (as a percent)	1.50%	1.40%	1.20%
Expected forfeiture rate (as a percent)	23.50%		22.80%
Intrinsic value and weighted average remaining contractual life in years of outstanding and exercisable options
Intrinsic value of outstanding shares	$ 3,200,000
Intrinsic value of exercisable options	$ 600,000
Weighted average grant date fair value of options granted (in dollars per share)	$ 2.07	$ 4.89	$ 7.89
Intrinsic value of options exercised	$ 3,128	$ 4,000	$ 1,119,000
Service based stock options expected to vest	$ 600,000
Employee and director options | Minimum
Fair value assumptions
Expected forfeiture rate (as a percent)		22.20%
Employee and director options | Maximum
Fair value assumptions
Expected forfeiture rate (as a percent)		22.80%