Balance Sheet Components

3 Months Ended

Mar. 31, 2022

Balance Sheet Related Disclosures [Abstract]

Balance Sheet Components

4. Balance Sheet Components

Inventories

Inventories consist of the following (in thousands):

	March 31,		December 31,
	2022		2021
Raw materials	$	1,056	$	1,056
Work-in-progress		781		1,468
Finished goods		73		88
Total inventories	$	1,910	$	2,612

Prepaid Expenses and Other Current Assets

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

	March 31,		December 31,
	2022		2021
Prepaid contract manufacturing costs	$	4,429	$	3,695
Prepaid research costs		3,850		3,253
Prepaid insurance		163		631
Other		2,000		1,782
Total prepaid expenses and other current assets	$	10,442	$	9,361

Accrued Liabilities

Accrued liabilities consist of the following (in thousands):

	March 31,		December 31,
	2022		2021
Contract research costs	$	8,801	$	4,760
Product revenue reserves		2,005		1,846
Compensation and related benefits		1,583		3,131
Contract manufacturing costs		929		3,288
Other		937		674
Total accrued liabilities	$	14,255	$	13,699