Stock-Based Compensation (Tables)

9 Months Ended

Jun. 30, 2017

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summarized Information about Stock Options

The following table summarizes information about stock options:

	Number of Options Outstanding		Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Term		Aggregate Intrinsic Value
Balance At September 30, 2016		6,691,200	$	6.56
Granted		638,000		1.95
Cancelled		(1,456,041)		7.23
Exercised		(135,730)		2.01
Balance At June 30, 2017		5,737,429	$	5.98		6.6 years	$	37,440
Exercisable At June 30, 2017		4,030,677	$	6.33		5.8 years	$	0

Assumptions Used to Value Stock Options

The assumptions used to value stock options are as follows:

	Nine Months Ended June 30,
	2017	2016
Dividend yield	—	—
Risk-free interest rate	1.34 – 2.31%	1.42 – 1.89%
Volatility	79%	89%
Expected life (in years)	5.75 – 6.25	6.25
Weighted average grant date fair value per share of options granted	$1.33	$4.59

Summary of Share Activity Related to RSUs

The following table summarizes the activity of the Company’s RSUs:

	Number of RSUs			Weighted- Average Grant Date Fair Value
Unvested at September 30, 2016		1,356,667		$	6.72
Granted		2,623,000			1.59
Vested		(773,333	)		6.89
Forfeited		(85,000	)		1.55
Unvested at June 30, 2017		3,121,334		$	2.51