Condensed Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 187,586	$ 232,545
Accounts receivable, net	2,599	183
Inventory	3,499	0
Prepaid expenses and other current assets	7,138	3,387
Total current assets	200,822	236,115
Property and equipment, net	10,765	10,528
Operating lease right-of-use-assets	12,693	12,907
Other long-term assets	6,307	6,278
Total assets	230,587	265,828
Current liabilities:
Accounts payable	5,263	5,122
Accrued compensation	4,889	6,369
Accrued liabilities	3,496	6,383
Operating lease liabilities, current portion	1,628	1,232
Total current liabilities	15,276	19,106
Operating lease liabilities, long-term portion	12,526	12,745
Total liabilities	27,802	31,851
Commitments and contingencies (Note 6)
Stockholders equity:
Common stock, $0.0001 par value; 200,000,000 shares authorized as of March 31, 2022 and December 31, 2021; [25,963,014] and 26,408,031 shares issued and outstanding as of March 31, 2022 and December 31, 2021, respectively	3	3
Additional paid-in capital	600,772	598,913
Accumulated deficit	(397,993)	(364,942)
Total stockholders’ equity (deficit)	202,785	233,977
Total liabilities and stockholders equity	230,587	265,828
Series 1 Convertible Preferred Stock
Stockholders equity:
Series 1 convertible preferred stock, $0.0001 par value - 60,000,000 shares authorized and 29,863,674 shares issued and outstanding as of March 31, 2022 and December 31, 2021; aggregate liquidation preference of $3 as of March 31, 2022 and December 31, 2021	$ 3	$ 3