CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 36,527	$ 32,772
Marketable securities	231,709	250,676
Restricted cash	1,706	1,706
Prepaid expenses and other current assets	3,109	2,824
Total current assets	273,051	287,978
Property and equipment, net	15,470	15,809
Other assets	2,438	2,857
Total assets	290,959	306,644
Current liabilities:
Accounts payable	2,017	3,901
Accrued liabilities	4,295	4,627
Deferred rent, current portion	209	130
Term loan, current portion	1,667	1,667
Total current liabilities	8,188	10,325
Deferred rent, net of current portion	2,223	792
Term loan, net of current portion	1,389	1,806
Total liabilities	11,800	12,923
Stockholders’ equity
Preferred stock; par value of $0.001 per share; 10,000,000 shares authorized at March 31, 2021 and December 31, 2020, no shares issued and outstanding at March 31, 2021 and December 31, 2020
Common stock, par value of $0.001 per share; 100,000,000 shares authorized at March 31, 2021 and December 31, 2020; 27,604,417 and 27,568,802 shares issued and outstanding at March 31, 2021 and December 31, 2020, respectively	28	28
Additional paid-in capital	413,122	410,551
Accumulated other comprehensive income	179	779
Accumulated deficit	(134,170)	(117,637)
Total stockholders’ equity	279,159	293,721
Total liabilities and stockholders’ equity	$ 290,959	$ 306,644

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).