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Stockholders' Equity (Tables)

9 Months Ended

Jun. 30, 2015

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,
		2015				2014				2015				2014
Cost of goods sold		$	613			$	-			$	613			$	-
Sales and marketing			176,148				221,323				543,228				657,014
Research and development			130,098				201,690				427,068				579,517
General and administrative			502,493				499,835				1,523,624				1,431,438
Stock-based compensation expense included in operating    expenses		$	809,352			$	922,848			$	2,494,533			$	2,667,969

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, 2015 were based on the following assumptions:

		Nine Months Ended June 30, 2015
Risk-free interest rate		1.29 – 1.66%
Expected life (years)			5.25
Expected volatility			98%
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, 2015:

		Number of Shares				Weighted- Average Exercise Price				Weighted-Average Remaining Contractual Term (in Years)
Outstanding, September 30, 2014			2,334,326			$	4.11				5.46
Granted			1,917,500			$	2.91
Exercised			(110,769	)		$	3.78
Cancelled			(363,064	)		$	3.88
Outstanding, June 30, 2015			3,777,993			$	3.61				7.16

RSU Activity

The following table summarizes RSU activity under the Company’s equity plans during the nine months ended June 30, 2015:

		Number of Shares				Weighted-Average Fair Market Value Per Share
Outstanding, September 30, 2014			1,101,303			$	4.71
Granted			104,000			$	2.29
Settled			(233,166	)		$	2.94
Cancelled			(124,796	)		$	3.87
Outstanding, June 30, 2015			847,341			$	4.42

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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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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

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