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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022 | Dec. 31, 2021
Cash from operating activities: |  |  |  |
Net loss | $ (8,080,819) | $ (5,912,356) | $ (6,864,783) | $ (6,008,901)
Adjustments to reconcile net loss to net cash used in operating activities: |  |  |  |
Bad debt expense |  |  | 0 | 76,046
Depreciation and amortization | 393,057 | 225,825 | 350,192 | 275,346
Loss on disposal of assets |  |  |  | 14,454
Stock based compensation | 499,590 | 592,177 | 819,191 | 262,411
Stock issued for services | 105,565 | 120,000 | 157,500 | 144,167
PPP loan forgiveness including accrued interest |  |  |  | (1,421,577)
Amortization of operating lease right of use asset | 235,217 | 198,790 | 235,834 | 250,482
Changes in assets and liabilities: |  |  |  |
Accounts receivable | 3,159,389 | (454,431) | (1,679,720) | (611,023)
Note receivable | (151,875) |  |  |
Contract assets | (921,009) | (820,938) | (422,273) | 99,009
Inventory | (97,552) | (395,787) | (1,130,022) | (185,915)
Prepaid expenses and other current assets | 543,793 | 15,539 | 266,539 | 423,905
Security deposit | 50,000 |  |  | (600,000)
Accounts payable | (1,670,625) | 605,129 | 1,245,890 | 445,184
Accounts payable-related party |  |  |  | (7,700)
Payroll taxes payable |  |  |  | (3,146)
Accrued expenses | (178,081) | (136,180) | (165,069) | (408,692)
Operating lease obligation | (154,653) | 60,668 | 184,728 | (127,816)
Contract liabilities | 630,931 | 2,051,109 | (871,314) | 804,388
Net cash used in operating activities | (5,637,072) | (3,850,455) | (7,873,307) | (6,579,378)
Cash flows from investing activities: |  |  |  |
Purchase of patents/trademarks | (58,208) | (17,490) | (18,190) | (7,435)
Purchase of software development | (640,609) | (87,700) | (281,783) |
Purchase of fixed assets | (199,618) | (311,327) | (344,915) | (545,505)
Net cash used in investing activities | (898,435) | (416,517) | (644,888) | (552,940)
Cash flows from financing activities: |  |  |  |
Repayments of insurance and equipment financing | (395,221) | (303,492) | (331,175) | (353,444)
Repayment of finance lease | (22,851) | (69,325) | (80,335) | (89,618)
Proceeds from common stock issued |  | 8,550,002 | 8,801,003 |
Stock issuance cost | (17,645) | (837,467) | (942,926) |
Proceeds from shares issued under Employee Stock Purchase Plan | 117,048 |  |  |
Proceeds from preferred stock issued | 9,000,000 | 999,000 | 1,299,000 | 4,500,000
Net cash provided by financing activities | 8,681,331 | 8,338,718 | 8,745,567 | 4,056,938
Net increase in cash | 2,145,824 | 4,071,746 | 227,372 | (3,075,380)
Cash, beginning of period | 1,121,092 | 893,720 | 893,720 | 3,969,100
Cash, end of period | 3,266,916 | 4,965,466 | 1,121,092 | 893,720
Supplemental Disclosure of Cash Flow Information: |  |  |  |
Interest paid | 5,816 | 8,045 | 9,292 | 30,817
Taxes paid |  | 1,264 | 1,264 |
Supplemental Non-Cash Investing and Financing Activities: |  |  |  |
Lease right of use asset and liability |  |  |  | 4,980,104
Notes issued for financing of insurance premiums | $ 458,452 | $ 353,244 | $ 353,244 | $ 363,005

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