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Statements of Cash Flows - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Operating Activities:    
Net loss $ (6,596,039) $ (5,213,025)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 92,775 40,952
Common stock issued for services 742,285 458,924
Compensation expense related to grant of stock options 444,713 722,549
Amortization of operating lease right of use asset 32,340 (19,911)
Amortization of debt discount 0 5,990
Increase (decrease) in:    
Accounts receivable (2,040,783) (1,021,937)
Prepaid expenses and other current assets 141,199 (385,895)
Inventory (485,961) 1,060,614
Deposits 0 4,869
Accounts payable 815,950 242,900
Accrued expenses 335,121 86,452
Convertible note payable repaid in lieu of salary - related party 0 (220,417)
Sales tax payable (34,569) 85,917
Deferred revenue 146,262 13,880
Net cash used in operating activities (6,406,707) (4,138,138)
Investing Activities:    
Purchases of equipment (498,270) (265,764)
Funding of patent costs (83,871) (93,137)
Net cash used in investing activities (582,141) (358,901)
Financing Activities:    
Repayments of auto loan 0 (9,294)
Borrowings on note payable - Paycheck Protection Program 0 339,262
Repayment on note payable - Paycheck Protection Program 0 (339,262)
Withhold shares to cover taxes for cashless stock option exercise (630,373)
Proceeds from stock option exercises 10,706 0
Proceeds from warrant exercises 2,854,223 9,926,858
Payments of equity offering costs 0 (1,566,852)
Proceeds from issuance of common stock and warrants, pursuant to public offering 0 18,999,675
Net cash provided by financing activities 2,234,556 27,350,387
Net (decrease) increase in cash (4,754,292) 22,853,348
Cash at beginning of year 26,702,804 3,849,456
Cash at end of year 21,948,512 26,702,804
Supplemental Disclosure of Cash Flow Information:    
Cash paid for interest 85 54,571
Cash paid for taxes 825 4,944
Supplemental Disclosure of Non-Cash Investing and Financing Activities:    
Purchase of property and equipment by incurring current liabilities 23,200 0
Depreciation cost capitalized into inventory 32,136 20,363
Recording of right of use asset and corresponding liability 0 2,605,032
Reclassification of deferred equity offering costs into APIC 0 1,566,852
Transfer of prepaid asset to inventory 0 212,188
Transfer of fixed asset to inventory $ 0 $ 76,946