Consolidated Balance Sheets - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 21,606,820	$ 28,786,647
Prepaid expenses and other current assets	914,275	1,366,859
Total current assets	22,521,095	30,153,506
Property and equipment, net	88,362	2,321
Restricted cash	40,717
Total assets	22,650,174	30,155,827
Current liabilities:
Accounts payable	1,670,369	842,754
Accrued expenses	2,186,262	2,358,332
Deferred grant revenue	528,974
Total current liabilities	4,385,605	3,201,086
Commitments and contingencies (Note 10)
Stockholders' equity:
Common stock, $0.001 par value, 400,000,000 shares authorized, 3,736,673 and 2,655,269 shares issued and outstanding at December 31, 2023 and 2022, respectively	3,736	2,655
Additional paid-in capital	335,644,204	330,060,836
Accumulated other comprehensive loss	(10,611,273)	(10,623,408)
Accumulated deficit	(308,083,161)	(293,796,405)
Total stockholders' equity	16,953,506	25,643,678
Total liabilities and stockholders' equity	22,650,174	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 December 31, 2023 and 2022, respectively	$ 1,311,063	$ 1,311,063