XML 15 R5.htm IDEA: XBRL DOCUMENT v3.20.2
Unaudited Statements of Stockholders' Equity - USD ($)
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Total
Balance at Dec. 31, 2018 $ 43,159 $ 405,972,075 $ (200,550,739) $ 205,464,495
Balance, shares at Dec. 31, 2018 43,160,751      
Exercise of options $ 33 106,288   106,321
Exercise of options, shares 32,439      
Stock-based compensation   2,901,839   2,901,839
Net loss     (29,913,712) (29,913,712)
Balance at Jun. 30, 2019 $ 43,192 408,980,202 (230,464,451) 178,558,943
Balance, shares at Jun. 30, 2019 43,193,190      
Balance at Mar. 31, 2019 $ 43,179 407,385,052 (214,634,636) 192,793,595
Balance, shares at Mar. 31, 2019 43,180,169      
Exercise of options $ 13 75,755   75,768
Exercise of options, shares 13,021      
Stock-based compensation   1,519,395   1,519,395
Net loss     (15,829,815) (15,829,815)
Balance at Jun. 30, 2019 $ 43,192 408,980,202 (230,464,451) 178,558,943
Balance, shares at Jun. 30, 2019 43,193,190      
Balance at Dec. 31, 2019 $ 43,465 412,599,772 (258,442,650) 154,200,587
Balance, shares at Dec. 31, 2019 43,466,933      
Issuance of common stock, net of issuance costs $ 3,127 9,571,010   9,574,137
Issuance of common stock, net of issuance costs, shares 3,126,709      
Exercise of options $ 121 135,462   135,583
Exercise of options, shares 121,056      
Stock-based compensation   3,583,822   3,583,822
Net loss     (21,741,633) (21,741,633)
Balance at Jun. 30, 2020 $ 46,713 425,890,066 (280,184,283) 145,752,496
Balance, shares at Jun. 30, 2020 46,714,698      
Balance at Mar. 31, 2020 $ 43,581 414,551,776 (266,105,254) 148,490,103
Balance, shares at Mar. 31, 2020 43,582,979      
Issuance of common stock, net of issuance costs $ 3,127 9,571,010   9,574,137
Issuance of common stock, net of issuance costs, shares 3,126,709      
Exercise of options $ 5 5,607   5,612
Exercise of options, shares 5,010      
Stock-based compensation   1,761,673   1,761,673
Net loss     (14,079,029) (14,079,029)
Balance at Jun. 30, 2020 $ 46,713 $ 425,890,066 $ (280,184,283) $ 145,752,496
Balance, shares at Jun. 30, 2020 46,714,698