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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net loss $ (8,082,122) $ (15,615,679)
Adjustments to reconcile net loss to net cash used in operating activities:    
Stock-based compensation 1,548,837 4,190,356
Non-cash interest expense 58,152 87,160
Net amortization of premium on marketable securities (171,859) (14,542)
Depreciation and amortization expense 60,632 66,972
Change in assets and liabilities:    
Prepaid expenses and other current assets (2,821,279) 3,733,114
Accounts payable (1,057,758) 296,060
Accrued expenses and other liabilities 492,710 (2,187,259)
Net cash used in operating activities (9,972,687) (9,443,818)
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchases of marketable securities (30,376,620) 0
Sales and maturities of marketable securities 0 30,000,000
Net cash used in investing activities (30,376,620) 30,000,000
CASH FLOWS FROM FINANCING ACTIVITIES:    
Proceeds from employee stock purchase plan 18,191 52,559
Net cash provided by financing activities 18,191 52,559
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS (40,331,116) 20,608,741
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD 142,823,016 144,419,364
CASH AND CASH EQUIVALENTS, END OF PERIOD 102,491,900 165,028,105
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:    
Cash paid during the period for interest $ 439,833 $ 397,396