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Stockholders' Equity (Tables)

3 Months Ended

Dec. 31, 2018

Equity [Abstract]

Schedule of Stock-Based Compensation Expense Related to Stock Options and RSUs

The following table summarizes stock-based compensation expense related to RSUs, stock options, and ESPP shares, which was allocated as follows (amounts shown in thousands):

			Three Months Ended December 31,
			2018						2017
Cost of revenue			$	44					$	18
Selling and marketing			791						641
Research and development			434						367
General and administrative			1,401						863
Stock-based compensation expense included in expenses			$	2,670					$	1,889

Schedule of Fair Value Calculations for Stock-Based Compensation Awards

The fair value calculations for stock-based compensation awards to employees for the three months ended December 31, 2018 and 2017 were based on the following assumptions:

			Three Months Ended December 31, 2018						Three Months Ended December 31, 2017
Risk-free interest rate			2.88% – 3.08%						2.04%
Expected life (years)			5.57						5.15
Expected volatility			57%						60%
Expected dividends			None						None

Schedule of Stock Option Activity

The following table summarizes stock option activity under the Company’s equity plans during the three months ended December 31, 2018:

			Number of Shares						Weighted-Average Exercise Price						Weighted-Average Remaining Contractual Term (in Years)
Outstanding at September 30, 2018			2,806,364						$	4.75					4.6
Granted			364,368						$	9.50
Exercised			(134,727)						$	4.35
Canceled			(3,345)						$	4.27
Outstanding at December 31, 2018			3,032,660						$	4.94					5.3

Schedule of RSU Activity

The following table summarizes RSU activity under the Company’s equity plans during the three months ended December 31, 2018:

			Number of Shares						Weighted-Average Fair Market Value Per Share
Outstanding at September 30, 2018			2,580,176						$	6.92
Granted			995,430						$	9.50
Settled			(542,865)						$	6.04
Canceled			(83,594)						$	7.40
Outstanding at December 31, 2018			2,949,147						$	7.95

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

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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