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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
Mar. 31, 2024
Dec. 31, 2023
CURRENT ASSETS    
Cash and cash equivalents $ 6,214,647 $ 14,694,857
Marketable securities 33,702,431 24,792,846
Receivables 369,000 10,371,993
Prepaid expenses and other current assets 1,125,844 995,776
TOTAL CURRENT ASSETS 41,411,922 50,855,472
PROPERTY AND EQUIPMENT, net 5,893,552 5,560,641
OTHER ASSETS    
Lease right-of-use assets, net 1,845,246 2,050,042
Other assets 293,722 268,172
TOTAL ASSETS 49,444,442 58,734,327
CURRENT LIABILITIES    
Accounts payable and accrued expenses 6,248,657 6,250,241
Lease liabilities, current 771,506 749,112
Deferred revenue, current 19,363,589 24,270,465
TOTAL CURRENT LIABILITIES 26,383,752 31,269,818
LONG-TERM LIABILITIES    
CIRM liability 3,376,259 3,376,259
Lease liabilities, net of current 1,249,493 1,486,783
TOTAL LONG-TERM LIABILITIES 4,625,752 4,863,042
TOTAL LIABILITIES 31,009,504 36,132,860
COMMITMENTS AND CONTINGENCIES (NOTE 6)
STOCKHOLDERS' EQUITY    
Preferred stock, $0.001 par value, 5,000,000 shares authorized, none issued and outstanding
Common stock, $0.001 par value, 50,000,000 shares authorized, 31,600,183 and 31,148,320 shares issued and outstanding, respectively 31,600 31,148
Additional paid-in capital 187,257,063 181,701,859
Accumulated other comprehensive income 307,701 235,813
Accumulated deficit (169,161,426) (159,367,353)
TOTAL STOCKHOLDERS' EQUITY 18,434,938 22,601,467
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 49,444,442 $ 58,734,327