Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 49,249	$ 13,219
Short-term investments	41,288	39,924
Prepaid expenses and other current assets	1,623	2,288
Total current assets	92,160	55,431
Property and equipment, net	225	93
Other assets		15
Total assets	92,385	55,539
Current liabilities:
Accounts payable	1,681	1,873
Accrued expenses	2,631	2,010
Current portion of long-term notes payable	833
Total current liabilities	5,145	3,883
Long-term notes payable	9,043	9,681
Other non-current liabilities	71	127
Total liabilities	14,259	13,691
Commitments and contingencies
Stockholders' equity:
Common stock, $0.0001 par value; 200,000,000 shares authorized; 24,724,544 and 17,425,654 shares issued and outstanding as of September 30, 2020 and December 31, 2019, respectively	2	1
Additional paid-in capital	140,161	82,938
Accumulated other comprehensive (loss) income	(30)	21
Accumulated deficit	(62,007)	(41,112)
Total stockholders' equity	78,126	41,848
Total liabilities and stockholders' equity	$ 92,385	$ 55,539

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).