v3.24.1
Statements of Cash Flows - USD ($)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Cash flows from operating activities:    
Net loss $ (19,366,763) $ (26,275,260)
Adjustments to reconcile net loss to Net cash used in operating activities:    
Depreciation and amortization 187,209 246,156
Stock based compensation 1,677,950 2,918,837
Change in operating lease right-of-use assets 719,827 730,452
Inventory net realizable value adjustment 167,413  
Bad debt (recovered) expensed (12,500) 40,737
Change in fair value of warrant liability (2,515,425)  
Offering costs allocated to warrant liability 591,670  
Changes in operating assets and liabilities:    
Accounts receivable 54,299 99,512
Inventory (491,230) (105,821)
Prepaid expenses and other current assets 288,406 47,335
Other assets   11,991
Accounts payable 978,569 (305,192)
Accrued expenses (536,477) 267,097
Accrued severance (282,918) (558,923)
Operating lease liabilities (705,895) (770,031)
Deferred revenue (2,645) 16,363
Net cash used in operating activities (19,248,510) (23,636,747)
Cash flows from investing activities:    
Purchases of property and equipment (187,078) (164,994)
Net cash from investing activities (187,078) (164,994)
Cash flows from financing activities:    
Net proceeds from an ATM offering 4,239,584 744,787
Net proceeds from a registered offering of common stock and warrants 2,677,191  
Proceeds from a sale of common stock to the Chief Executive Officer 94,640  
Proceeds from contributions to employee stock purchase plan 72,930 272,833
Net cash provided by financing activities 7,084,345 1,017,620
Net decrease in cash and cash equivalents (12,351,243) (22,784,121)
Cash and cash equivalents - beginning 26,287,293 49,071,414
Cash and cash equivalents - ending 13,936,050 26,287,293
Supplemental disclosure of non-cash financing activities:    
Increase in operating lease right-of-use assets and operating lease liabilities   2,071,336
Performance Share Unit (PSUs) [Member]    
Supplemental disclosure of non-cash financing activities:    
Common stock issued   1
Restricted Stock Units (RSUs) [Member]    
Supplemental disclosure of non-cash financing activities:    
Common stock issued $ 9 $ 10

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