v3.20.2
Balance Sheets - USD ($)
Jun. 30, 2020
Dec. 31, 2019
Current assets:    
Cash and cash equivalents $ 23,408,940 $ 21,684,089
Accounts receivable 105,226 63,144
Prepaid expenses and other current assets 662,958 450,231
Total current assets 24,177,124 22,197,464
Property and equipment, net 408,895 626,524
Operating lease right-of-use assets 1,678,983 2,057,576
Other assets 2,410 2,410
Total assets 26,267,412 24,883,974
Current liabilities:    
Accounts payable 1,340,982 1,671,519
Accrued expenses 1,633,637 2,063,097
Operating lease liabilities, current portion 803,760 722,291
Deferred revenue 12,000 12,000
Total current liabilities 3,790,379 4,468,907
Operating lease liabilities, long-term portion 979,660 1,402,193
Total liabilities 4,770,039 5,871,100
Commitments and contingencies
Stockholders’ equity:    
Preferred Stock, $0.00001 par value, 10,000,000 shares authorized at June 30, 2020 and December 31, 2019; no shares issued or outstanding
Common Stock, $0.00001 par value, 50,000,000 shares authorized at June 30, 2020 and December 31, 2019; 41,685,310 and 33,203,806 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively. 417 333
Additional paid-in capital 301,440,018 282,153,201
Accumulated deficit (279,943,062) (263,140,660)
Total stockholders’ equity 21,497,373 19,012,874
Total liabilities and stockholders’ equity $ 26,267,412 $ 24,883,974

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