Stock-Based Compensation (Tables)

9 Months Ended

Jun. 30, 2015

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summarized Information about Stock Options

The following tables summarize 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, 2013		3,419,285	$	4.68
Granted		1,039,000		14.05
Cancelled		(152,582)		6.05
Exercised		(454,863)		6.00
Balance At September 30, 2014		3,850,840		6.99
Granted		1,670,000		6.36
Cancelled		(95,948)		12.03
Exercised		(17,500)		2.46
Balance At June 30, 2015		5,407,392	$	6.72		8.1 years	$	10,487,890
Exercisable At June 30, 2015		2,416,134	$	6.03		7.1 years	$	5,894,091

Assumptions Used to Value Stock Options

The assumptions used to value stock options are as follows:

	Nine months ended June 30,
	2015	2014
Dividend yield	—	—
Risk-free interest rate	1.46 – 1.88%	1.8 – 2.5%
Volatility	75%	69%
Expected life (in years)	6 - 6.25	6.25 – 9.72
Weighted average grant date fair value per share of options granted	$4.25	$8.92

Summary of Share Activity Related to Restricted Stock Units

The following table summarizes the activity of the Company’s Restricted Stock Units:

	Number of RSUs			Weighted- Average Grant Date Fair Value
Unvested at September 30, 2013		—		$	—
Granted		510,000			14.58
Vested		—			—
Forfeited		—			—
Unvested at September 30, 2014		510,000		$	14.58
Granted		705,000			7.41
Vested		(267,500	)		14.54
Forfeited		—			—
Unvested at June 30, 2015		947,500		$	9.26