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Stockholders' Equity (Tables)
6 Months Ended
Mar. 31, 2023
Equity [Abstract]  
Schedule of Stock-Based Compensation Expense Related to Stock Options and RSUs The following table summarizes stock-based compensation expense related to restricted stock units (“RSUs”), stock options, and Employee Stock Purchase Plan (“ESPP”) shares, which was allocated as follows (amounts in thousands):
Three Months Ended March 31,Six Months Ended March 31,
 2023202220232022
Cost of revenue$66 $70 $192 $167 
Selling and marketing1,047 1,134 1,538 2,078 
Research and development899 868 1,453 1,804 
General and administrative692 1,226 1,963 2,380 
Stock-based compensation expense included in expenses
$2,704 $3,298 $5,146 $6,429 
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, 2023:
Number of
Shares
Weighted-Average
Exercise Price
Weighted-Average
Remaining
Contractual Term
(in years)
Aggregate Intrinsic Value
(in thousands)
Outstanding at September 30, 2022781,092 $7.46 3.7$1,512 
Granted— $— 
Exercised(85,302)$7.93 
Canceled(30,871)$9.49 
Outstanding at March 31, 2023664,919 $7.30 4.71,554 
Vested and Expected to Vest at March 31, 2023664,919 $7.30 4.71,554 
Exercisable at March 31, 2023647,629 $7.24 4.61,552 
Schedule of RSU Activity The following table summarizes RSU activity under the Company’s equity plans during the six months ended March 31, 2023:
 
Number of
Shares
Weighted-Average
Fair Market Value
Per Share
Outstanding at September 30, 20222,441,677 $12.29 
Granted869,517 10.12 
Settled(549,987)11.35 
Canceled(459,184)12.52 
Outstanding at March 31, 20232,302,023 11.64 
Schedule of Performance RSU Activity The following table summarizes Performance RSU activity under the Company’s equity plans during the six months ended March 31, 2023:
 
Number of
Shares
Weighted-Average
Fair Market Value
Per Share
Outstanding at September 30, 2022919,456 $13.43 
Granted325,837 10.23 
Settled(22,332)9.21 
Canceled(208,961)12.89 
Outstanding at March 31, 20231,014,000 12.80