Condensed Consolidated Balance Sheets - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 77,616,074	$ 89,017,686
Prepaid expenses and other current assets	2,467,443	3,399,019
Total current assets	80,083,517	92,416,705
Property and equipment, net	33,572	38,515
Right of use lease asset	248,200	320,616
Other noncurrent assets	29,376	29,383
Total assets	80,394,665	92,805,219
Current liabilities:
Accounts payable	3,456,728	4,503,619
Accrued expenses	7,532,473	10,571,237
Lease liability—current	225,537	256,309
Total current liabilities	11,214,738	15,331,165
Lease liability—noncurrent	33,763	78,847
Total liabilities	11,248,501	15,410,012
Commitments and contingencies (Note 7)
Stockholders’ equity:
Common stock, $0.001 par value, 400,000,000 shares authorized, 21,186,827 shares issued and outstanding at March 31, 2021 and December 31, 2020, respectively.	21,187	21,187
Additional paid-in capital	233,240,918	231,418,356
Accumulated other comprehensive loss	(10,440,111)	(10,037,261)
Accumulated deficit	(153,675,830)	(144,007,075)
Total stockholders’ equity	69,146,164	77,395,207
Total liabilities and stockholders’ equity	$ 80,394,665	$ 92,805,219