Condensed Consolidated Balance Sheets - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 27,685,131	$ 28,786,647
Prepaid expenses and other current assets	953,670	1,366,859
Total current assets	28,638,801	30,153,506
Property and equipment, net	1,687	2,321
Restricted cash	40,180
Total assets	28,680,668	30,155,827
Current liabilities:
Accounts payable	1,131,197	842,754
Accrued expenses	2,819,624	2,358,332
Total current liabilities	3,950,821	3,201,086
Total liabilities	3,950,821	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 June 30, 2023 and December 31, 2022, respectively.	3,731	2,655
Additional paid-in capital	335,485,317	330,060,836
Accumulated other comprehensive loss	(10,634,872)	(10,623,408)
Accumulated deficit	(301,435,392)	(293,796,405)
Total stockholders' equity	23,418,784	25,643,678
Total liabilities and stockholders' equity	28,680,668	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 June 30, 2023 and December 31, 2022, respectively.	$ 1,311,063	$ 1,311,063