Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 74,253	$ 163,582
Marketable securities	36,081
Prepaid expenses and other current assets	6,568	5,713
Total current assets	116,902	169,295
Marketable securities, long-term	38,576
Other assets, noncurrent	1,116	1,162
Operating lease right-of-use asset	933	885
Property and equipment, net	63
Tax credit receivable, noncurrent	868
Restricted cash	197	254
Total assets	158,655	171,596
Current liabilities
Accounts payable	1,782	2,851
Accrued expenses and other current liabilities	3,758	2,715
Total current liabilities	5,540	5,566
Operating lease liabilities, noncurrent	544	541
Total liabilities	6,084	6,107
Commitments and contingencies (Note 9)
Stockholders’ equity
Preferred stock, par value of $0.00001 per share; 10,000,000 shares authorized at March 31, 2021 and December 31, 2020; no shares issued or outstanding as of March 31, 2021 and December 31, 2020
Additional paid-in capital	270,206	269,175
Accumulated deficit	(117,705)	(104,360)
Accumulated other comprehensive income (loss)	70	674
Total stockholders’ equity	152,571	165,489
Total liabilities and stockholders' equity	$ 158,655	$ 171,596

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).

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

- Definition

Amount of expenses incurred but not yet paid nor invoiced, and liabilities classified as other.

+ References

No definition available.