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Stockholders' Equity (Tables)

9 Months Ended

Jun. 30, 2014

Equity [Abstract]

Stock-Based Compensation Expense Related to Stock Options and RSUs

The following table summarizes stock-based compensation expense related to stock options and RSUs, which was allocated as follows:

		Three Months Ended June 30,								Nine Months Ended June 30,
		2014				2013				2014				2013
Sales and marketing		$	221,323			$	102,672			$	657,014			$	277,976
Research and development			201,690				161,431				579,517				447,491
General and administrative			499,835				421,530				1,431,438				1,320,300
Stock-based compensation expense included in operating expenses		$	922,848			$	685,633			$	2,667,969			$	2,045,767

Fair Value Calculations for Stock-Based Compensation Awards

The fair value calculations for stock-based compensation awards to employees for the nine months ended June 30, 2013 were based on the following assumptions:

		Nine Months Ended June 30, 2013
Risk-free interest rate		0.18 – 0.84%
Expected life (years)		5.05
Expected volatility		169%
Expected dividends		None

Stock Option Activity

The following table summarizes stock option activity under the Company’s equity plans during the nine months ended June 30, 2014:

		Number of Shares				Weighted- Average Exercise Price				Weighted-Average Remaining Contractual Term (in Years)
Outstanding, September 30, 2013			2,824,964			$	4.09				7.29
Granted			—				—
Exercised			(103,223	)		$	1.22
Cancelled			(105,620	)		$	4.33
Outstanding, June 30, 2014			2,616,121			$	4.19				6.34

Significant Ranges of Outstanding and Exercisable Options

The following table summarizes significant ranges of outstanding and exercisable options as of June 30, 2014:

Range of Exercise Prices		Number of Options Outstanding				Weighted- Average Remaining Contractual Life (in Years)				Weighted- Average Exercise Price				Number of Exercisable Options				Weighted- Average Exercise Price of Exercisable Options				Number of Unvested Options
$0.09 to $0.79			336,762				5.50			$	0.73				336,762			$	0.73				—
$0.80 to $1.10			350,000				1.64			$	0.93				350,000			$	0.93				—
$2.34 to $2.60			757,057				6.95			$	2.51				455,700			$	2.54				301,357
$3.33 to $9.97			873,178				7.63			$	5.93				447,973			$	6.64				425,205
$11.05 to $11.68			299,124				7.50			$	11.08				185,682			$	11.08				113,442
			2,616,121				6.34			$	4.19				1,776,117			$	3.81				840,004

RSU Activity

The following table summarizes RSU activity under the Company’s equity plans during the nine months ended June 30, 2014:

		Number of Shares				Weighted- Average Fair Market Value Per Share
Outstanding, September 30, 2013			692,504			$	4.85
Granted			612,639			$	4.86
Settled			(28,334	)		$	8.96
Cancelled			(64,517	)		$	4.66
Outstanding, June 30, 2014			1,212,292			$	4.77

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Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

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Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

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