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Condensed Balance Sheets - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Current assets:    
Cash and cash equivalents $ 10,748 $ 7,046
Investments 48,731 6,759
Prepaid expenses and other current assets 648 1,928
Restricted cash 25 593
Total current assets 60,152 16,326
Operating lease, right-of-use asset 202  
Other non-current assets 24  
Property and equipment, net 153 15
Total assets 60,531 16,341
Current liabilities:    
Accounts payable 1,016 1,596
Accrued expenses and other current liabilities 3,164 2,196
Paycheck Protection Program loan, current portion   168
Operating lease liability, current portion 93  
Total current liabilities 4,273 3,960
Paycheck Protection Program loan, net of current portion   219
Operating lease liability, net of current portion 128  
Total liabilities 4,401 4,179
Commitments and contingencies (Note 11)
Stockholders’ equity:    
Preferred stock, $0.001 par value; 5,000,000 shares authorized and no shares issued and outstanding at June 30, 2021 and December 31, 2020, respectively
Common stock, $0.001 par value; 300,000,000 and 150,000,000 shares authorized at June 30, 2021 and December 31, 2020, respectively; 90,527,914 and 43,804,175 shares issued and outstanding at June 30, 2021 and December 31, 2020, respectively 90 44
Additional paid-in capital 287,987 231,412
Accumulated other comprehensive gain/(loss) 6 (2)
Accumulated deficit (231,953) (219,292)
Total stockholders’ equity 56,130 12,162
Total liabilities and stockholders’ equity $ 60,531 $ 16,341