v3.20.1
Balance Sheets - USD ($)
Mar. 31, 2020
Dec. 31, 2019
Current assets:    
Cash and cash equivalents $ 19,963,917 $ 21,684,089
Accounts receivable 59,173 63,144
Prepaid expenses and other current assets 352,019 450,231
Total current assets 20,375,109 22,197,464
Property and equipment, net 504,825 626,524
Operating lease right-of-use assets 1,869,131 2,057,576
Other assets 2,410 2,410
Total assets 22,751,475 24,883,974
Current liabilities:    
Accounts payable 1,038,251 1,671,519
Accrued expenses 1,435,045 2,063,097
Operting lease liabilities, current portion 762,822 722,291
Deferred revenue 12,000 12,000
Total current liabilities 3,248,118 4,468,907
Operating lease liabilities, long-term portion 1,191,981 1,402,193
Total liabilities 4,440,099 5,871,100
Commitments and contingencies
Stockholders’ equity:    
Preferred Stock, $0.00001 par value, 10,000,000 shares authorized at March 31, 2020 and December 31, 2019; no shares issued or outstanding
Common Stock, $0.00001 par value, 50,000,000 shares authorized at March 31, 2020 and December 31, 2019; 37,952,017 and 33,203,806 shares issued and outstanding at March 31, 2020 and December 31, 2019, respectively. 381 333
Additional paid-in capital 290,049,391 282,153,201
Accumulated deficit (271,738,396) (263,140,660)
Total stockholders’ equity 18,311,376 19,012,874
Total liabilities and stockholders’ equity $ 22,751,475 $ 24,883,974

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