9. Accrued liabilities

Accrued compensation and accrued expenses and other current liabilities consist of the following:


	March 31, 2025		December 31, 2024
	(in thousands)
Accrued compensation:
Accrued bonuses	$	2,576	$	7,704
Accrued paid time off		3,265		3,151
Accrued payroll		2,822		3,021
Other accrued compensation		691		573
Total accrued compensation	$	9,354	$	14,449
Accrued expenses and other current liabilities:
Accrued research and development services	$	6,956	$	10,493
Accrued professional fees		1,318		993
Other accrued current liabilities		1,536		1,754
Total accrued expenses and other current liabilities	$	9,810	$	13,240