Stockholders' Equity and Stock-based Compensation Expense (Tables)

3 Months Ended

Mar. 31, 2023

Share-Based Payment Arrangement [Abstract]

Schedule of Activity under the 2019 Plan

Activity under the Company's equity incentive plans is summarized as follows:

	Shares Available for Grant
Balance, December 31, 2022	1,070,925
RSUs granted	(36,541)
Stock awards canceled / forfeited / expired	206,087
Options canceled / forfeited / expired	4,835
Balance, March 31, 2023	1,245,306

	Options Outstanding
	Number of Stock Options Outstanding	Weighted- Average Exercise Price		Weighted Average Remaining Term  (in Years)
Balance, December 31, 2022	513,935	$	34.41	6.63
Options exercised	(5,775)	$	18.93
Options canceled / forfeited / expired	(4,835)	$	46.99
Balance, March 31, 2023	503,325	$	34.47	5.29

	Stock Awards Outstanding
	Number of Awards Outstanding		Weighted Average Grant Date Fair Value per Share
Balance, December 31, 2022	$	906,211	$	40.39
RSUs granted	36,541		$	31.14
Awards released	(168,525)		$	30.78
Stock awards canceled / forfeited / expired	(206,268)		$	46.17
Balance, March 31, 2023	567,959		$	40.54

Schedule of Stock-based Compensation Expense

Stock-based compensation expense by department recognized during the three months ended March 31, 2023 and 2022 was as follows (in thousands):

	Three Months Ended March 31,
	2023		2022
Cost of revenue	$	364	$	459
Sales and marketing	1,148		576
Research and development	693		980
General and administrative	1,181		2,028
Total stock-based compensation expense	$	3,386	$	4,043