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CONDENSED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)
3 Months Ended
Dec. 31, 2022
Dec. 31, 2021
CONDENSED STATEMENTS OF CASH FLOWS (UNAUDITED)    
Net loss $ (7,853,509) $ (8,782,606)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 988,543 887,930
Non-cash lease expense 5,078 24,997
Share-based payments for services 148,858 218,318
Equity-based compensation 1,692,831 3,262,296
Common stock contributed to 401(k) plan 50,178 52,555
Gain on short-term investments 0 (615)
Loss on patent impairment 0 30,793
Gain on derivative instruments 0 (364,596)
(Increase)/decrease in assets:    
Prepaid expenses 111,537 144,542
Supplies used for R&D and manufacturing 212,687 (61,139)
Increase/(decrease) in liabilities:    
Accounts payable (115,285) (523,152)
Accrued expenses 13,346 95,685
Due to employees 79,087 209,046
Net cash used in operating activities (4,666,649) (4,805,946)
CASH FLOWS FROM INVESTING ACTIVITIES:    
Proceeds from maturity of US treasury bills 0 6,152,000
Purchases of property and equipment (53,580) (17,036)
Expenditures for patent costs 0 (22,741)
Net cash (used in) provided by investing activities (53,580) 6,112,223
CASH FLOWS FROM FINANCING ACTIVITIES:    
Payments of stock issuance costs (9,010) (32,800)
Proceeds from exercises of warrants and options 447,291 117,200
Payments on obligations under finance lease (372,871) (340,908)
Net cash provided by (used in) financing activities 65,410 (256,508)
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS (4,654,819) 1,049,769
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD 22,672,138 36,060,148
CASH AND CASH EQUIVALENTS, END OF PERIOD 18,017,319 37,109,917
SUPPLEMENTAL SCHEDULE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:    
Property and equipment included in current liabilities 105,318 469,005
Finance lease obligation included in accounts payable 1,853 771
Prepaid consulting services paid with issuance of common stock 91,623 233,753
Exercise of derivative liabilities 0 70,589
Financing costs included in current liabilities 0 13,165
Cash paid for interest $ 277,853 $ 290,212