v3.23.3
Condensed Statements of Cash Flows - USD ($)
9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Cash flows from operating activities:    
Net loss $ (14,762,267) $ (20,135,342)
Adjustments to reconcile net loss to Net cash used in operating activities:    
Depreciation and amortization 137,772 200,995
Stock based compensation 1,394,877 2,158,915
Changes in operating lease right-of-use assets 547,939 550,372
Inventory net realizable value adjustment 166,086  
Bad debt expense (12,500) 30,000
Change in fair value of warrant liability (2,685,000)  
Offering costs allocated to warrants 591,670  
Changes in operating assets and liabilities:    
Accounts receivable 35,655 10,282
Inventory (259,881) (164,426)
Prepaid expenses and other current assets (68,702) (230,368)
Accounts payable (131,824) (312,174)
Accrued expenses (117,478) 924
Accrued severance expense (213,570) (395,405)
Operating lease liabilities (533,685) (594,703)
Deferred revenue (5,386) 42,477
Net cash used in operating activities (15,916,294) (18,838,453)
Cash flows from investing activities:    
Purchases of property and equipment (97,242) (127,198)
Net cash used in investing activities (97,242) (127,198)
Cash flows from financing activities:    
Net proceeds from an ATM offering 3,557,549  
Net proceeds from a sale of common stock and warrant issuance 2,677,191  
Proceeds from contributions to employee stock purchase plan 70,162 249,705
Net cash provided by financing activities 6,304,902 249,705
Net decrease in cash and cash equivalents (9,708,634) (18,715,946)
Cash and cash equivalents – beginning 26,287,293 49,071,414
Cash and cash equivalents – ending 16,578,659 30,355,468
Supplemental disclosure of non-cash investing and financing activities:    
Increase in operating lease right-of-use assets and operating lease liabilities   2,071,336
Restricted Stock Units (RSUs) [Member]    
Supplemental disclosure of non-cash investing and financing activities:    
Common stock issued $ 9 $ 9

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