Condensed Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net loss	$ (52,338,959)	$ (54,169,029)
Adjustments to reconcile net loss to cash used in operating activities:
Non-cash consideration received in licensing agreement transaction	0	(945,366)
Unrealized (gain) loss on equity investments	(2,003,073)	454,811
Change in accrued interest income and accretion of discount on marketable securities	(2,172,254)	(1,211,311)
Stock-based compensation expense	7,285,192	6,556,686
Depreciation and amortization expense	568,282	512,505
Amortization of right-of-use asset	1,028,293	869,100
Change in lease liability	(533,946)	936,927
Change in operating assets and liabilities:
Prepaid expenses and other current assets	(1,385,052)	109,292
Accounts payable	1,750,026	(5,174,136)
Accrued expenses	2,020,566	(3,166,606)
Net cash used in operating activities	(45,780,925)	(55,227,127)
Cash flows from investing activities:
Purchase of marketable securities	(112,443,150)	(172,964,441)
Sales/maturities of marketable securities	120,000,000	90,000,000
Purchase of long-term equity investments	(10,000,000)	(2,500,000)
Issuance of convertible short-term note receivable	0	(1,000,000)
Purchases of property and equipment	(40,308)	(1,224,379)
Software development and other costs	(97,147)	(194,397)
Net cash used in investing activities	(2,580,605)	(87,883,217)
Cash flows from financing activities:
Proceeds from exercise of options and employee stock purchase plan	535,201	180,658
Proceeds from royalty monetization agreement	30,000,000	0
Net cash provided by financing activities	30,535,201	180,658
Net decrease in cash, cash equivalents and restricted cash	(17,826,329)	(142,929,686)
Cash, cash equivalents and restricted cash, at beginning of period	46,798,599	189,728,285
Cash, cash equivalents and restricted cash, at end of period	28,972,270	46,798,599
Non-cash investing and financing activities:
Right-of-use asset in exchange for lease liability	0	15,791,769
Conversion of short-term note receivable to long-term equity investment	$ 0	$ 1,000,000