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CONDENSED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)
9 Months Ended
Jun. 30, 2023
Jun. 30, 2022
CONDENSED STATEMENTS OF CASH FLOWS (UNAUDITED)    
Net loss $ (24,563,599) $ (28,238,682)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 2,959,681 2,845,978
Non-cash lease expense 12,788 49,390
Share-based payments for services 473,723 603,147
Equity-based compensation 4,976,338 9,102,774
Common stock contributed to 401(k) plan 157,706 167,280
Gain on short-term investments 0 (615)
Loss on patent impairment 0 30,793
Gain on derivative instruments 0 (366,791)
Modification of warrants 0 634,713
Loss on receivables 0 54,922
(Increase)/decrease in assets:    
Prepaid expenses 208,419 147,192
Supplies used for R&D and manufacturing (24,491) (166,453)
Deposits (2,342,951) 1,910,917
Increase/(decrease) in liabilities:    
Accounts payable 66,616 (410,536)
Accrued expenses 243,800 78,729
Due to employees 28,173 230,012
Net cash used in operating activities (17,803,797) (13,327,230)
CASH FLOWS FROM INVESTING ACTIVITIES:    
Proceeds from maturity of US treasury bills 0 6,152,000
Purchases of property and equipment (361,892) (621,826)
Expenditures for patent costs 0 (22,741)
Net cash (used in) provided by investing activities (361,892) 5,507,433
CASH FLOWS FROM FINANCING ACTIVITIES:    
Proceeds from issuance of common stock 1,391,897 0
Payments of stock issuance costs (53,196) (50,515)
Proceeds from exercises of warrants 447,291 101,225
Proceeds from the exercises of stock options 0 29,835
Proceeds from landlord funding of lease improvements 0 786,454
Payments on obligations under finance leases (1,157,371) (1,033,677)
Net cash provided by (used in) financing activities 628,621 (166,678)
NET DECREASE IN CASH AND CASH EQUIVALENTS (17,537,068) (7,986,475)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD 22,672,138 36,060,148
CASH AND CASH EQUIVALENTS, END OF PERIOD 5,135,070 28,073,673
SUPPLEMENTAL SCHEDULE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:    
Changes to right of use assets and liabilities 0 16,268
Finance lease obligation included in accounts payable 927 1,800
Prepaid consulting services paid with issuance of common stock 327,927 221,242
Exercise of derivative liabilities 0 70,589
Assets purchased under finance leases 0 32,409
Financing costs included in current liabilities 58,172 28,560
Accrued consulting services to be paid with common stock 110,000 110,000
Cash paid for interest $ 809,495 $ 872,023