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CONDENSED BALANCE SHEETS - USD ($)
Sep. 30, 2020
Dec. 31, 2019
Current assets:    
Cash and cash equivalents $ 36,405,432 $ 10,195,292
Accounts receivable and unbilled receivable 204,366 203,480
Prepaid expenses and other current assets 1,578,859 954,957
Total current assets 38,188,657 11,353,729
Property and equipment, net 682,859 877,823
Operating lease right-of-use assets 423,163 697,418
Other assets 155,770 157,576
Total Assets 39,450,449 13,086,546
Current liabilities:    
Accounts payable 610,236 656,304
Accrued expenses 3,643,300 3,260,061
Note payable 305,000 0
Operating lease liabilities 883,534 865,379
Total current liabilities 5,442,070 4,781,744
Derivative financial instruments—warrants 190,199 4,127
Operating lease liabilities, net of current portion 207,178 860,963
Other liabilities 88,452 128,368
Total Liabilities 5,927,899 5,775,202
Commitments and contingencies (Note 8)
Stockholders’ equity    
Preferred stock, 20,000,000 shares authorized; (Note 7) 926 60
Common stock, $0.0001 par value, 150,000,000 shares authorized; 26,285,743 and 8,593,633 shares issued and outstanding at September 30, 2020 and December 31, 2019, respectively 10,081 8,312
Additional paid-in capital 260,807,295 217,172,528
Service receivables (2,403,580) (971,673)
Accumulated deficit (224,892,172) (208,897,883)
Total stockholders’ equity 33,522,550 7,311,344
Total liabilities and stockholders’ equity $ 39,450,449 $ 13,086,546