Additional Balance Sheet Detail

6 Months Ended

Jun. 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):

	June 30, 2022		December 31, 2021
Prepaid expenses	$	3,562	$	3,400
Prepaid sign-on bonuses subject to vesting provisions		220		326
Interest income receivable		392		473
Total prepaid expenses and other current assets	$	4,174	$	4,199

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

	June 30, 2022		December 31, 2021
External research and development	$	9,038	$	3,171
Payroll and benefits		2,733		4,990
Professional services		688		996
Other		11		74
Total accrued expenses and other current liabilities	$	12,470	$	9,231