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Stockholders' Equity (Tables)

6 Months Ended

Mar. 31, 2021

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 March 31,												Six Months Ended March 31,
			2021						2020						2021						2020
Cost of revenue			$	82					$	65					$	169					$	126
Selling and marketing			892						594						1,680						1,166
Research and development			777						680						1,517						1,354
General and administrative			1,217						969						2,349						1,965
Stock-based compensation expense included in expenses			$	2,968					$	2,308					$	5,715					$	4,611

Schedule of Stock Option Activity

The following table summarizes stock option activity under the Company’s equity plans during the six months ended March 31, 2021:

			Number of Shares						Weighted-Average Exercise Price						Weighted-Average Remaining Contractual Term (in Years)						Aggregate Intrinsic Value (in thousands)
Outstanding at September 30, 2020			1,162,505						$	7.51					6.1						$	6,081
Granted			—						$	—
Exercised			(259,865)						$	7.54
Canceled			—						$	—
Outstanding at March 31, 2021			902,640						$	7.50					6.0						$	11,368
Vested and Expected to Vest at March 31, 2021			902,640						$	7.50					6.0						$	11,368
Exercisable at March 31, 2021			625,015						$	6.61					5.2						$	4,979

Schedule of RSU Activity

The following table summarizes RSU activity under the Company’s equity plans during the six months ended March 31, 2021:

			Number of Shares						Weighted-Average Fair Market Value Per Share
Outstanding at September 30, 2020			2,661,943						$	7.95
Granted			706,412						$	12.27
Settled			(845,420)						$	7.39
Canceled			(77,635)						$	9.20
Outstanding at March 31, 2021			2,445,300						$	9.35

Schedule of Performance RSU Activity

Performance Restricted Stock Units

The following table summarizes Performance RSU activity under the Company’s equity plans during the six months ended March 31, 2021:

			Number of Shares						Weighted-Average Fair Market Value Per Share
Outstanding at September 30, 2020			353,556						$	6.06
Granted			284,765						$	11.84
Settled			(90,345)						$	6.06
Canceled			—						$	—
Outstanding at March 31, 2021			547,976						$	10.06

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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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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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Tabular disclosure of the number and weighted-average grant date fair value for outstanding performance shares.

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