Annual report pursuant to Section 13 and 15(d)

Unaudited Quarterly Financial Information - Summary of Company's Unaudited Quarterly Results of Operations (Details)

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Unaudited Quarterly Financial Information - Summary of Company's Unaudited Quarterly Results of Operations (Details) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]                    
Revenues    
Total operating expenses 3,658,053 3,920,453 4,904,854 3,394,210 2,824,546 2,764,341 2,283,549 2,121,704 $ 15,877,569 $ 9,994,140
Net Loss (3,597,278) (3,836,549) (4,806,460) (3,325,717) (2,755,620) (2,757,835) (2,281,289) (2,119,397) (15,566,003) (9,914,141)
Net Loss applicable to common shareholders $ (3,597,278) $ (3,836,549) $ (4,806,460) $ (3,325,717) $ (2,755,620) $ (4,169,876) $ (2,281,289) $ (2,119,397) $ (15,566,003) $ (11,326,182)
Loss per share: Basic and diluted net loss per share from continuing operations $ (0.08) $ (0.08) $ (0.10) $ (0.11) $ (0.09) $ (0.35) $ (0.38) $ (0.42) $ (0.37) $ (0.87)