v3.19.3
Balance Sheets - USD ($)
Sep. 30, 2019
Dec. 31, 2018
Current assets:    
Cash and cash equivalents $ 22,800,024 $ 20,106,485
Accounts receivable 85,500 44,550
Prepaid expenses and other current assets 596,543 637,708
Total current assets 23,482,067 20,788,743
Property and equipment, net 750,685 1,219,016
Operating lease right-of-use assets 2,244,336  
Other assets 2,410 2,410
Total assets 26,479,498 22,010,169
Current liabilities:    
Accounts payable 1,305,235 1,861,385
Accrued expenses 1,603,746 1,778,349
Operating lease liabilities, current portion 682,163  
Total current liabilities 3,591,144 3,639,734
Operating lease liabilities, long-term portion 1,610,319  
Total liabilities 5,201,463 3,639,734
Commitments and contingencies
Stockholders’ equity:    
Preferred Stock, $0.00001 par value, 10,000,000 shares authorized at September 30, 2019 and December 31, 2018; no shares issued or outstanding
Common Stock, $0.00001 par value, 50,000,000 shares authorized at September 30, 2019 and December 31, 2018; 30,844,921 and 26,526,303 shares issued and outstanding at September 30, 2019 and December 31, 2018, respectively. 309 265
Additional paid-in capital 275,026,988 243,111,741
Accumulated deficit (253,749,262) (224,741,571)
Total stockholders’ equity 21,278,035 18,370,435
Total liabilities and stockholders’ equity $ 26,479,498 $ 22,010,169

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