Condensed Consolidated Statements of Operations (unaudited) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Revenue	$ 5,544,418	$ 5,747,681	$ 11,083,783	$ 11,987,309
Operating expenses:
Research and development	43,010,807	23,416,090	77,877,689	45,142,776
General and administrative	14,410,865	8,815,474	26,729,578	16,740,479
Total operating expenses	57,421,672	32,231,564	104,607,267	61,883,255
Loss from operations	(51,877,254)	(26,483,883)	(93,523,484)	(49,895,946)
Other income (expenses)
Other income, net	1,236,657	307,743	1,484,462	697,752
Interest income	360,160	965,851	810,544	2,264,984
Interest expense	(8,125)	(16,250)	(24,375)	(32,500)
Total other income	1,588,692	1,257,344	2,270,631	2,930,236
Net loss	$ (50,288,562)	$ (25,226,539)	$ (91,252,853)	$ (46,965,710)
Net loss per common share, basic and diluted	$ (1.03)	$ (0.65)	$ (1.87)	$ (1.22)
Weighted average common shares outstanding, basic and diluted	48,860,930	38,739,922	48,741,296	38,644,209

The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1337-109256