Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 93,506	$ 23,081
Other current assets	488	268
Total current assets	93,994	23,349
Operating lease right-of-use assets	295	90
Property and equipment, net	11	47
Total assets	94,300	23,486
Current liabilities:
Accounts payable	911	453
Accrued development expense	719	777
Accrued compensation and benefits	83	58
Operating lease liabilities, current	58	90
Other current liabilities	94	9
Total current liabilities	1,865	1,387
Operating lease liabilities, non-current	235
Total liabilities	2,100	1,387
Commitments and contingencies (Note 7 and 8)
Stockholders' equity:
Preferred stock, $.001 par value; 10,000,000 shares authorized, none issued and outstanding
Common stock, $.001 par value; 120,000,000 shares authorized; 35,237,987 and 21,841,810 shares issued and outstanding at December 31, 2020 and 2019, respectively	35	22
Additional paid-in capital	267,086	190,664
Accumulated deficit	(174,921)	(168,587)
Total stockholders' equity	92,200	22,099
Total liabilities and stockholders' equity	$ 94,300	$ 23,486

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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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).