Equity Incentive and Other Plans (Tables)

3 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Stock Option Activity

Stock option activity under the 2021 Plan for the periods presented was as follows:

	Number of Shares		Weighted Average Exercise Price		Aggregate Intrinsic Value		Weighted Average Remaining Contractual Term (in years)
Outstanding at January 1, 2024		4,976	$	39.60	$	—	8.64
Exercised		—		0.00
Forfeited or expired		—		0.00
Outstanding at March 31, 2024		4,976	$	39.60	$	—		8.39
Vested and exercisable		2,593	$	39.60	$	—		8.39

Stock option activity under the 2018 Plan for the periods presented was as follows:

	Number of Shares1			Weighted Average Exercise Price		Aggregate Intrinsic Value		Weighted Average Remaining Contractual Term (in years)
Outstanding at January 1, 2024		116,451		$	34.24	3		4.65
Forfeited or expired		(201	)		135.21
Outstanding at March 31, 2024		116,250		$	34.06	$	—		4.35
Vested and exercisable		69,498		$	27.89	$	—		5.54

1.Includes 63,447 and 52,803 awards as of March 31, 2024 and 63,648 and 52,803 awards as of December 31, 2023, respectively, accounted for as service-based and market-based options, respectively, that are vested, that the Company currently deems probable of vesting, or in the case of market-based options, that the Company is expensing so long as the respective service conditions are met. The market-based options will vest only if the price of the Company's common stock reaches a $1 billion market capitalization target for any 20 days during a 30-day period on or before February 4, 2026, the fourth anniversary of the closing of the Business Combination.

Schedule of Restricted Stock Unit Activity

RSU and PSU activity under the 2021 Plan for the periods presented was as follows:

	Number of Shares			Weighted Average Grant Date Fair Value		Total Fair Value
Unvested at January 1, 2024		209,946		$	8.74
Granted		187,024			3.21	$	600
Vested		(63,019	)		7.60	$	291
Forfeited		(7,814	)		8.63
Unvested at March 31, 2024		326,137		$	5.77

Schedule of Stock-Based Compensation Expense

The following table presents the classification of stock-based compensation expense under the 2021 Plan, the 2018 Plan and the ESPP:

	Three Months Ended March 31,
	2024		2023
Sales and marketing	$	43	$	76
Product development		94	$	109
General and administrative		461	$	473
	$	598	$	658

Summary of Defined Contribution Retirement (401k) Plan

The Company recognized expense from matching contributions to the Company-sponsored defined contribution retirement (401k) plan as follows for the periods presented:

	Three Months Ended March 31,
	2024		2023
401(k) matching contributions	$	141	$	233