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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Cash from operating activities: |  |
Net loss | $ (11,241,718) | $ (6,864,783)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation and amortization | 550,201 | 350,192
Stock based compensation | 710,047 | 819,191
Stock issued for services | 143,065 | 157,500
Amortization of operating lease right of use asset | 316,776 | 235,834
Changes in assets and liabilities: |  |
Accounts receivable | 1,955,800 | (1,679,720)
Note receivable | (153,750) |
Contract assets | (216,225) | (422,273)
Inventory | (97,804) | (1,130,022)
Security deposit | 50,000 |
Prepaid expenses and other current assets | 744,771 | 266,539
Accounts payable | (1,694,756) | 1,245,890
Accrued expenses | (289,209) | (165,069)
Operating lease obligation | (232,007) | 184,728
Contract liabilities | 708,245 | (871,314)
Net cash used in operating activities | (8,746,564) | (7,873,307)
Cash flows from investing activities: |  |
Purchase of patents/trademarks | (69,327) | (18,190)
Purchase of software development | (527,896) | (281,783)
Purchase of fixed assets | (496,686) | (344,915)
Net cash used in investing activities | (1,093,909) | (644,888)
Cash flows from financing activities: |  |
Repayments of insurance and equipment financing | (520,529) | (331,175)
Repayment of finance lease | (22,851) | (80,335)
Proceeds from common stock issued |  | 8,801,003
Issuance cost | (25,797) | (942,926)
Proceeds from shares issued under Employee Stock Purchase Plan | 230,400 |
Proceeds from preferred stock issued | 11,500,000 | 1,299,000
Net cash provided by financing activities | 11,161,223 | 8,745,567
Net increase in cash | 1,320,750 | 227,372
Cash, beginning of year | 1,121,092 | 893,720
Cash, end of year | 2,441,842 | 1,121,092
Supplemental Disclosure of Cash Flow Information: |  |
Interest paid | 7,159 | 9,292
Taxes paid | 29,085 | 1,264
Supplemental Non-Cash Investing and Financing Activities: |  |
Notes issued for financing of insurance premiums | $ 487,929 | $ 353,244

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