Condensed Consolidated Balance Sheets - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 30,995,714	$ 28,786,647
Prepaid expenses and other current assets	1,022,803	1,366,859
Total current assets	32,018,517	30,153,506
Property and equipment, net	1,912	2,321
Total assets	32,020,429	30,155,827
Current liabilities:
Accounts payable	826,027	842,754
Accrued expenses	3,401,361	2,358,332
Total current liabilities	4,227,388	3,201,086
Total liabilities	4,227,388	3,201,086
Commitments and contingencies (Note 8)
Stockholders' equity:
Common stock, $0.001 par value, 400,000,000 shares authorized, 3,731,571 and 2,655,269 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively.	3,731	2,655
Additional paid-in capital	335,215,994	330,060,836
Accumulated other comprehensive loss	(10,561,452)	(10,623,408)
Accumulated deficit	(298,176,295)	(293,796,405)
Total stockholders' equity	26,481,978	25,643,678
Total liabilities and stockholders' equity	32,020,429	30,155,827
Series A Convertible Preferred Stock
Convertible preferred stock:
Series A convertible preferred stock, $0.001 par value, 40,000,000 shares authorized; 56,227 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively.	$ 1,311,063	$ 1,311,063