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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
Sep. 30, 2023
Dec. 31, 2022
CURRENT ASSETS    
Cash and cash equivalents $ 8,984,667 $ 9,603,242
Marketable securities 19,536,805 31,818,020
Receivables 547,580 547,580
Prepaid expenses and other current assets 458,417 919,892
TOTAL CURRENT ASSETS 29,527,469 42,888,734
PROPERTY AND EQUIPMENT, net 5,139,680 4,588,030
OTHER ASSETS    
Lease right-of-use assets, net 2,217,009 2,349,974
Other assets 268,172 268,172
TOTAL ASSETS 37,152,330 50,094,910
CURRENT LIABILITIES    
Accounts payable and accrued expenses 6,771,772 4,834,683
Accounts payable and accrued expenses, related party 20,178 89,234
Lease liabilities, current 729,567 682,039
Deferred revenue, current 25,405,084 17,980,599
TOTAL CURRENT LIABILITIES 32,926,601 23,586,555
LONG-TERM LIABILITIES    
CIRM liability 3,376,259 3,376,259
Lease liabilities, net of current 1,683,656 1,878,070
Deferred revenue, net of current 953,470 9,467,932
TOTAL LONG-TERM LIABILITIES 6,013,385 14,722,261
TOTAL LIABILITIES 38,939,986 38,308,816
COMMITMENTS AND CONTINGENCIES (NOTE 6)
STOCKHOLDERS' EQUITY (DEFICIT)    
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, 25,855,070 and 25,241,402 shares issued and outstanding, respectively 25,855 25,241
Additional paid-in capital 156,678,545 148,735,420
Accumulated other comprehensive income 113,208 105,244
Accumulated deficit (158,605,264) (137,079,811)
TOTAL STOCKHOLDERS' EQUITY (DEFICIT) (1,787,656) 11,786,094
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT) $ 37,152,330 $ 50,094,910