Additional Balance Sheet Detail

9 Months Ended

Sep. 30, 2022

Balance Sheet Related Disclosures [Abstract]

Additional Balance Sheet Detail

6. Additional Balance Sheet Detail

Prepaid expenses and other current assets consisted of the following (in thousands):

	September 30, 2022		December 31, 2021
Prepaid expenses	$	4,579	$	3,400
Prepaid sign-on bonuses subject to vesting provisions		122		326
Interest income receivable		434		473
Total prepaid expenses and other current assets	$	5,135	$	4,199

Accrued expenses and other current liabilities consisted of the following (in thousands):

	September 30, 2022		December 31, 2021
External research and development	$	3,829	$	3,171
Payroll and benefits		3,490		4,990
Professional services		695		996
Other		25		74
Total accrued expenses and other current liabilities	$	8,039	$	9,231