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CONDENSED STATEMENTS OF CASH FLOWS - USD ($) | 6 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023
Cash flows from operating activities |  |
Net loss | $ (13,735,256) | $ (2,877,596)
Adjustments to reconcile net loss to net cash from operating activities: |  |
Depreciation and amortization | 3,776,694 | 3,884,970
Net unrealized loss on investments | 47,165 | 4,759,639
Realized gain on investments |  | (5,574,791)
Accreted interest |  | 9,157
Bond amortization | (505) |
Deferred taxes | 8,392,031 | (701,205)
Provision for credit losses | 427,487 | 370,573
Net realizable value inventory adjustment | 1,872 | 143,290
Other income - TIA | (2,959,695) | (3,031,798)
(Increase) decrease in operating assets: |  |
Accounts receivable | 5,554,005 | (2,758,677)
Inventories | (4,438,769) | (373,901)
Other current assets | 75,333 | (35,220)
Income taxes receivable | 76,960 | 1,424,723
Other assets | 26,082 | 13,830
Increase (decrease) in operating liabilities: |  |
Accounts payable | (1,664,967) | (2,823,502)
Accrued liabilities | (302,198) | 700,711
Income taxes payable | (1,491) | (58,396)
Net cash used by operating activities | (4,725,252) | (6,928,193)
Cash flows from investing activities |  |
Purchase of property, plant, and equipment | (348,100) | (556,385)
Purchase of debt and equity securities | (476,946) | (43,868,141)
Proceeds from the sales of debt and equity securities |  | 34,567,513
Net cash used by investing activities | (825,046) | (9,857,013)
Cash flows from financing activities |  |
Repayments of long-term debt | (148,963) | (139,146)
Proceeds from Technology Investment Agreement (TIA) |  | 2,563,229
Payment of preferred stock repurchase payable |  | (1,101,110)
Payment of preferred stock dividends | (115,222) | (116,223)
Net cash provided (used) by financing activities | (264,185) | 1,206,750
Net decrease in cash and cash equivalents | (5,814,483) | (15,578,456)
Cash and cash equivalents at: |  |
Beginning of period | 12,667,550 | 19,721,345
End of period | 6,853,067 | 4,142,889
Supplemental schedule of cash flow information: |  |
Interest paid | 65,300 | $ 28,312
Income taxes paid (received) | (71,318) |
Supplemental schedule of noncash investing and financing activities: |  |
Preferred dividends declared, not paid | $ 57,611 |

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