v3.25.4
Employee benefit plans (Tables)
 12 Months Ended
Dec. 31, 2025
Share-Based Payment Arrangement [Abstract]  
schedule of share-based compensation, Performance Stock Units Award Activity [Table Text Block]
A summary of the Company’s PSU activity for the year ended December 31, 2025 is as follows:
Shares
(in thousands)
Weighted-average grant date fair value
Non-vested shares at December 31, 2024286 

$6.06 
Granted2,208 0.63 
Vested(221)6.14 
Forfeited(2,226)0.67 
Non-vested shares at December 31, 202547 $5.79 
Schedule of Share-based Compensation, Stock Options, Activity
A summary of the Company’s stock option activity for the year ended December 31, 2025 is as follows:
Shares
(in thousands)
Weighted-average exercise price
Weighted-average remaining contractual term (in years)
Aggregate intrinsic value (in thousands)
Outstanding at December 31, 20242,327 $7.43 4.59$— 
Granted— — 
Exercised— — 
Forfeited/Cancelled(883)8.03 
Outstanding at December 31, 20251,444 $7.06 3.24$— 
Vested and expected to vest at December 31, 20251,444 $7.06 3.24$— 
Exercisable at December 31, 20251,436 $7.05 3.22$— 
The weighted-average grant date fair value of all options granted was zero, zero, and $2.14 per share in 2025, 2024, and 2023, respectively. The total fair value of all options vested was $0.5 million, $0.8 million, and $1.4 million in 2025, 2024, and 2023, respectively.
Schedule of Share-based Compensation, Restricted Stock Units Award Activity
A summary of the Company’s RSU activity for the year ended December 31, 2025 is as follows:
Shares
(in thousands)
Weighted-average grant date fair value
Non-vested shares at December 31, 202411,243 $3.38 
Granted6,963 0.83 
Vested(6,171)3.32 
Forfeited(2,120)2.52 
Non-vested shares at December 31, 20259,915 $1.81 
Allocation of Stock-based Compensation Expense The following table summarizes stock-based compensation expense included in the consolidated statements of operations:
Year ended December 31,
(in thousands)202520242023
Cost of revenue$946 $1,343 $1,955 
Research and development10,393 14,411 19,062 
Sales and marketing3,533 5,804 8,736 
General and administrative4,670 7,574 11,726 
Total stock-based compensation expense$19,542 $29,132 $41,479 
Total stock-based compensation expense includes accrued stock bonus expense of $2.1 million for the year ended December 31, 2025. Total stock-based compensation expense included no accrued stock bonus expense for the year ended December 31, 2024 or 2023.