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Condensed Consolidated Statements of Cash Flows - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2023
Mar. 31, 2023
Sep. 30, 2022
Mar. 31, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Cash flows from operating activities:              
Net loss $ (10,849,169) $ (9,659,918) $ (7,424,450) $ (8,473,522) $ (32,043,982) $ (21,717,172)  
Adjustments to reconcile net loss to net cash used in operating activities:              
Stock-based compensation expense         6,259,464 3,821,923  
Issuance of shares in consulting agreement         610,000 0  
Amortization of debt discount 158,397       391,920 72,722  
Depreciation expense         12,624 86  
Operating lease expense         160,685 180,772  
Finance lease depreciation expense         30,297 37,417  
Changes in assets and liabilities:              
Prepaid expenses and other assets         73,205 (1,171,337)  
Finance lease right-of-use asset         0 (306,487)  
Accounts payable         4,147,277 727,987  
Accrued expenses         (4,580,981) 240,799  
Finance lease liabilities         0 138,402  
Operating lease liabilities         (239,469) (205,885)  
Net cash used in operating activities         (25,178,960) (18,180,773)  
Cash flows from financing activities:              
Proceeds from issuance of note payable         0 25,000,000  
Payment for debt issuance costs         0 (449,329)  
Proceeds from exercise of stock options         8,849 29,917  
Payments of finance lease obligations         (46,129) 0  
Proceeds from issuance of common stock, net of issuance costs 800,000       5,647,467 0 $ 9,900,000
Net cash provided by financing activities         5,610,187 24,580,588  
Net increase in cash and cash equivalents         (19,568,773) 6,399,815  
Cash and cash equivalents at beginning of period   $ 73,820,160   $ 65,242,622 73,820,160 65,242,622 65,242,622
Cash and cash equivalents at the end of period $ 54,251,387   $ 71,642,437   54,251,387 71,642,437 $ 73,820,160
Supplemental information of cash and non-cash transactions:              
Cash paid for interest         3,031,129 62,500  
Fair value of warrants issued in connection with debt         $ 0 $ 1,713,741