Registration of securities issued in business combination transactions

Statements of Cash Flows (Unaudited)

v3.23.2
Statements of Cash Flows (Unaudited) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Dec. 31, 2021
Cash flows from operating activities:        
Net loss $ (2,165,851) $ (3,261,773) $ (12,175,208) $ (15,475,776)
Adjustments to reconcile net loss to net cash used in operating activities:        
Depreciation and amortization 63,481 32,801 99,247 140,914
Gain on disposal of assets (22,975)   (6,449)
Stock-based compensation 337,601 456,423 1,663,911 2,543,712
Amortization of debt discount   8,350 8,350 31,687
Amortization of debt issuance costs   373 373 1,405
Discount on investments 50,644 18,048 32,275 (1,600)
Changes in operating assets and liabilities:        
Vendor receivable 27,500 173,499 145,999 (173,499)
Prepaid expenses and other current assets 216,381 151,999 73,699 (113,688)
Accounts payable 352,319 268,700 (191,889) (355,606)
Accrued liabilities (278,355) (59,235) 131,848 (945,721)
Accrued payroll and other compensation (209,061) (307,994) (228,648) (99,021)
Net cash used in operating activities (1,628,316) (2,518,809) (10,446,492) (14,447,193)
Cash flows from investing activities:        
Purchases of property and equipment     (6,397)
Net proceeds from the sale of property and equipment 22,975   103,531
Payment for security deposit   (6,976) 6,048 (2,217)
Patent costs     (2,359)
Purchases of investments (8,773,000) (21,983,000) (56,650,000) (43,601,000)
Proceeds from redemptions of investments 9,840,000 21,255,000 68,065,000 40,469,000
Net cash provided by (used in) investing activities 1,089,975 (734,976) 11,524,579 (3,142,973)
Cash flows from financing activities:        
Proceeds from ESPP plan     25,025 16,814
Proceeds from public offering     15,000,000
Costs of public offering     (1,178,830)
Proceeds from the At-the-Market Offering, net   200,624 216,393 2,980,595
Costs of the At-the-Market Offering     (5,851) (95,809)
Proceeds from exercise of warrants     2,089,476
Repayment of promissory notes   (375,000) (375,000) (365,000)
Proceeds from exercise of employee stock options     1,240,490
Reverse stock split fractional share payment     (68)
Net cash provided by (used in) financing activities   (174,376) (139,501) 19,687,736
Net increase (decrease) in cash and cash equivalents (538,341) (3,428,161) 938,586 2,097,570
Cash and cash equivalents at beginning of period 5,930,731 4,992,145 4,992,145 2,894,575
Cash and cash equivalents at end of period $ 5,392,390 1,563,984 5,930,731 4,992,145
Supplemental disclosure of cash flow information:        
Cash paid for income taxes     1,332 1,332
Cash paid for interest   $ 114,411 $ 114,411 $ 89,908