The Company's stock-based compensation expense is associated with stock options, RSUs and its employee stock purchase plan (“ESPP”) awarded under its equity incentive plans.

Stock-based compensation expense was allocated as follows:


	Three Months Ended June 30,				Six Months Ended June 30,
	2024		2023		2024		2023
Cost of revenue	$	38	$	137	$	77	$	261
Sales and marketing		60		184		124		349
Research and development		124		305		251		575
General and administrative		109		627		292		1100
Total stock-based compensation	$	331	$	1,253	$	744	$	2,285

For stock-based awards granted by the Company, stock-based compensation cost is measured at grant date based on the fair value of the award and is expensed over the requisite service period. No stock-based compensation was capitalized as internally developed software during the three and six months ended June 30, 2024, while $40 and $77 of stock-based compensation was capitalized as internally developed software during the three and six months ended June 30, 2023, respectively.

A summary of the Company's stock option activity is as follows:


	Options Outstanding
	Number of Shares			Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term (in Years)		Aggregate Intrinsic Value
Outstanding, vested and exercisable at December 31, 2023		54		$	100.69		3.63	$	—
Forfeited and cancelled		(4	)		407.54		—		—
Outstanding, vested and exercisable at June 30, 2024		50			78.51		3.37		—

There were no grants or exercises of stock options during the six months ended June 30, 2024.

Compensation expense, net of forfeitures, is recognized ratably over the requisite service period. As of June 30, 2024, there was no unrecognized compensation expense related to stock options, as all of the stock options outstanding were fully vested.

A summary of the Company's RSU activity is as follows:


	RSUs Outstanding
	Number of Shares			Weighted Average Grant Date Fair Value Per Unit
Outstanding at December 31, 2023		288		$	8.88
Vested		(119	)		8.39
Cancelled and withheld to cover taxes		(51	)		8.54
Outstanding at June 30, 2024		118		$	9.54

As of June 30, 2024, there was $642 of unrecognized compensation expense related to RSUs, which is expected to be recognized over a weighted-average period of 1.0 years. The Company uses the fair market value of the underlying common stock on the dates of grant to determine the fair value of RSUs.

There was no activity during the three and six months ended June 30, 2024 under the Company's ESPP and there was no unrecognized compensation expense related to the Company's ESPP as of June 30, 2024.