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v3.23.2

CONDENSED STATEMENTS OF CASH FLOWS - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022 | Dec. 31, 2021
Operating activities: |  |  |  |
Net loss | $ (3,858,722) | $ (4,504,659) | $ (13,690,947) | $ (11,814,968)
Adjustments to reconcile net loss to net cash used in operating activities: |  |  |  |
Stock-based compensation | 368,140 | 76,973 | 743,274 | 205,629
Depreciation and amortization | 102,503 | 96,644 | 386,686 | 321,984
Change in fair value of warrant liability | (2,523) | 739,306 | 3,431,865 | 1,563,439
Changes in non-cash working capital balances: |  |  |  |
Other current assets | 232,518 | 17,124 | 189,906 | 34,584
Accounts payable | 516,762 | 44,220 | 214,138 | 266,217
Accrued liabilities | (243,501) | (150,391) | 283,983 | 250,122
Operating lease assets and liabilities, net | 2,446 | 174 | 21,543 | (6,114)
Cash used in operating activities | (2,882,377) | (3,680,609) | (8,419,553) | (9,167,965)
Investing activities: |  |  |  |
Purchase of equipment | (14,792) |  | (241,203) | (31,107)
Cash used in investing activities | (14,792) |  | (241,203) | (1,006,107)
Financing activities: |  |  |  |
Cash provided by financing activities | 147,042 | 9,012,178 | 13,593,691 | 10,123,064
(Decrease) increase in cash and cash equivalents during the period | (2,750,127) | 5,331,569 | 4,932,935 | (51,038)
Cash and cash equivalents, beginning of the period | 10,468,645 | 5,535,710 | 5,535,710 | 5,586,748
Cash and cash equivalents, end of the period | 7,718,518 | 10,867,279 | 10,468,645 | 5,535,710
Supplemental Cash Flow Information |  |  |  |
Increase in right of use asset and lease liability from lease extension |  | 245,120 |  |
Series B Preferred Stock |  |  |  |
Financing activities: |  |  |  |
Proceeds from issuances of preferred stock, net |  | $ 9,012,178 | 9,615,078 | $ 10,123,064
Series C Preferred Stock |  |  |  |
Financing activities: |  |  |  |
Proceeds from issuances of preferred stock, net | $ 147,042 |  | $ 3,978,613 |

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