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Statements of Cash Flows - USD ($)
9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Cash flows from operating activities:    
Net loss $ (8,499,974) $ (5,172,992)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 407,146 417,188
Amortization 19,334 32,023
Amortization of right-of-use assets 249,972 284,519
Share-based compensation expense 158,288 163,924
Loan and accrued interest forgiveness on note payable 0 (821,515)
Inventory reserve 3,800 0
Loss on disposal of fixed asset 0 2,850
Changes in operating assets and liabilities:    
Accounts receivable (98,872) (17,669)
Inventory (138,666) (18,958)
Other assets 359,307 498,878
Accounts payable (49,449) (237,443)
Accrued expenses 45,828 (510,730)
Lease liabilities (290,104) (312,893)
Other liabilities (30,696) 9,935
Net cash used in operating activities (7,864,086) (5,682,883)
Cash flows from investing activities:    
Purchases of property and equipment (313,598) (188,245)
Net cash used in investing activities (313,598) (188,245)
Cash flows from financing activities:    
Proceeds from issuance of common stock 16,151 31,725,645
Payments of deferred offering costs (232,845) (1,578,643)
Repayment of note payable (365,926) (302,343)
Payments under lease obligations (17,075) (15,448)
Net cash (used in) provided by in financing activities (599,695) 29,829,211
Net change in cash and cash equivalents (8,777,379) 23,958,083
Cash and cash equivalents:    
Beginning of period 24,783,029 3,322,226
End of period 16,005,650 27,280,309
Cash paid for:    
Interest 9,622 11,155
Income taxes 5,050 800
Non-cash investing and financing activities:    
Property and equipment costs included in accounts payable 23,037 0
Prepaid insurance financed with promissory notes 280,577 320,866
Conversion of convertible preferred stock to common stock $ 0 $ 55,360,897