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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Cash flows used in operating activities: |  |  |
Net income (loss) | $ 68,000 | $ (84,000) |
Depreciation and amortization | 28,000 | 38,000 |
(Decrease) increase in the provision for credit loss | (7,000) | 2,000 |
Impairment of inventory | 9,000 | 3,000 |
Non-cash lease expense | 32,000 | 31,000 |
Stock-based compensation | 27,000 | 17,000 |
Change in operating assets and liabilities: |  |  |
Decrease (increase) in accounts receivable | 56,000 | (176,000) |
Decrease (increase) in inventory | 165,000 | (18,000) |
Decrease in deferred COGS | 235,000 | 37,000 |
Decrease (increase) in other current assets and other assets | 27,000 | (20,000) |
(Decrease) increase in deferred revenue | (556,000) | 45,000 |
Decrease in operating lease liability | (36,000) | (33,000) |
(Decrease) increase in accounts payable, accrued expenses, other current liabilities and non-current liabilities | (91,000) | 75,000 |
Net cash used in operating activities | (43,000) | (83,000) |
Cash flows used in investing activities: |  |  |
Investments in technology | (2,000) | (26,000) |
Net cash used in investing activities | (2,000) | (26,000) |
Cash flows provided by financing activities: |  |  |
Stock option exercise proceeds | 13,000 |  |
Warrant exercise proceeds |  | 5,000 |
Net cash provided by financing activities | 13,000 | 5,000 |
Net decrease in cash | (32,000) | (104,000) |
Cash at the beginning of the period | 1,449,000 | 1,450,000 | $ 1,450,000
Cash at the end of the period | 1,417,000 | 1,346,000 | $ 1,449,000
Cash paid during the year for: |  |  |
Interest | 1,000 |  |
Income taxes | 2,000 |  |
Non-cash investing and financing activities: |  |  |
Accrued preferred dividends to former CEO of OmniMetrix | $ 1,000 | $ 1,000 |

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