Stock-based compensation (Tables)

12 Months Ended

Dec. 31, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Service Vesting-Based Stock Option Activity

The following is a summary of service vesting-based stock option activity for the year ended December 31, 2024 and 2023, and the status of service vesting-based stock options outstanding as of December 31, 2024 and 2023:

	2024			2023
	Shares	Wtd. Avg. Exercise Price		Shares	Wtd. Avg. Exercise Price
Outstanding as of beginning of year	217,250	$	2.21	456,293	$	2.17
Exercised	(90,250)	2.23		(239,043)	2.12
Outstanding at end of year	127,000	$	2.19	217,250	$	2.21
Stock options exercisable at year end	127,000	$	2.19	217,250	$	2.21

Schedule of Share-Based Payment Arrangement, Option, Exercise Price Range

The following table summarizes information about service vesting-based stock options outstanding as of December 31, 2024:

Range of Exercise Prices	Number Outstanding at December 31, 2024	Weighted Average Remaining Contractual Life	Weighted Average Exercise Price
$1.00 - 1.50	2,000	1.85	$	1.49
$1.51 - 2.00	115,000	1.32	1.89
$2.51 - 8.60	10,000	2.92	5.69
	127,000	1.45	$	2.19

Schedule of Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity

The following is a summary of service vesting-based restricted stock activity for the years ended December 31, 2024 and 2023, and the status of unvested service vesting-based restricted stock outstanding as of December 31, 2024 and 2023:

	2024			2023
	Shares	Wtd. Avg. Grant Date Fair Value		Shares	Wtd. Avg. Grant Date Fair Value
Outstanding as of beginning of year	2,312,898	$	18.32	1,879,215	$	28.94
Granted	484,886	20.65		1,907,101	13.12
Vested	(1,323,729)	21.57		(1,237,221)	24.97
Forfeited	(178,415)	17.09		(236,197)	25.88
Non-vested at year end	1,295,640	$	16.00	2,312,898	$	18.32

The following is a summary of market-based restricted stock activity under our stock option plan for the years ended December 31, 2024 and 2023 and the status of market-based restricted stock outstanding as of December 31, 2024 and 2023:

	2024			2023
	Shares	Wtd. Avg. Grant Date Fair Value		Shares	Wtd. Avg. Grant Date Fair Value
Outstanding as of beginning of year	509,166	$	26.50	271,044	$	30.64
Granted	312,081	26.61		268,738	25.19
Vested	(325,561)	27.84		(30,616)	51.65
Non-vested at year end	495,686	$	25.69	509,166	$	26.50

Schedule of Share-Based Payment Arrangement, Expensed and Capitalized, Amount

We recorded total stock compensation expense for the years ended December 31, 2024, 2023, and 2022, as follows:

	2024		2023		2022
Research and development costs	$	2,273	$	4,665	$	2,423
Sales and marketing costs	1,765		3,615		2,456
General and administrative costs	10,864		13,447		11,524
Cost of revenue	1,612		1,522		1,323
Total	$	16,514	$	23,249	$	17,726