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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Cash flows from operating activities:    
Net loss $ (2,550,879) $ (2,774,312)
Adjustments to reconcile net loss to net cash used in operating activities:    
Non-cash stock compensation issued for services 149,900 66,850
Non-cash stock compensation issued to directors and employees 46,503 243,362
Fair value of stock options issued to employees 325,834 428,488
Non-cash compensation for services 45,000
Amortization of discount on notes payable 178,380
Amortization of leasehold right of use asset 57,859 56,899
Loss from equity method investment 27,735 71,117
Depreciation and amortization 19,087 15,547
Changes in assets and liabilities:    
Accounts receivable (22,571) (8,250)
Inventory (7,317) (6,858)
Prepaid expenses and other current assets (60,677) 54,573
Accounts payable and accrued expenses 498,169 18,789
Accrued compensation 274,420 (189,812)
Deferred revenue (73,130) (107)
Leasehold liability (56,774) (54,405)
Net cash used in operating activities (1,148,461) (2,078,119)
Cash from investing activities:    
Payments to acquire property, plant, and equipment (5,654)
Payments to acquire intangible assets (910)
Investment in joint ventures (8,447) (75,326)
Net cash used in investing activities (8,447) (81,890)
Cash from financing activities:    
Proceeds from the sale of notes payable 714,000
Proceeds from the sale of common stock, net of offering costs 2,708,642 315,000
Proceeds from option exercise 2,376
Principal payments on note payable (170,000)
Net cash provided by financing activities 3,255,018 315,000
Increase (decrease) in cash and cash equivalents 2,098,110 (1,845,009)
Cash and cash equivalents at beginning of period 90,135 5,684,871
Cash and cash equivalents at end of period 2,188,245 3,839,862
Supplemental disclosure of cash flow information:    
Interest
Taxes
Noncash activities:    
Fair value of warrants issued with debt $ 327,389