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CONDENSED STATEMENTS OF CASH FLOWS - USD ($)
 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Cash flows from operating activities    
Net loss $ (10,217,140) $ (15,657,246)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 5,621,705 5,683,496
Net unrealized loss (gain) on investments 3,217,058 (1,402,660)
Realized loss on investments 343  
Bond amortization (804) (763)
Deferred taxes   8,392,030
Provision for credit losses 253,524 414,598
Inventory obsolescence adjustment 1,176,437 (9,466)
Other income - TIA (4,470,322) (4,429,383)
(Increase) decrease in operating assets:    
Accounts receivable (904,692) 1,582,349
Inventories (2,375,672) (3,710,174)
Other current assets 61,592 (16,281)
Income taxes receivable 316,492 43,226
Other assets 33,535 37,261
Increase (decrease) in operating liabilities:    
Accounts payable 284,248 (1,527,704)
Accrued liabilities 534,980 147,356
Income taxes payable 880 1,062
Net cash used in operating activities (6,467,836) (10,452,299)
Cash flows from investing activities    
Purchase of property, plant, and equipment (509,072) (1,141,885)
Purchase of debt and equity securities (421,294) (757,683)
Proceeds from the sales of debt and equity securities 7,030,000 4,000,000
Net cash from investing activities 6,099,634 2,100,432
Cash flows from financing activities    
Repayments of long-term debt (249,815) (225,605)
Payment of preferred stock dividends (172,833) (172,832)
Net cash used in financing activities (422,648) (398,437)
Net decrease in cash and cash equivalents (790,850) (8,750,304)
Cash and cash equivalents at:    
Beginning of period 4,235,388 12,667,550
End of period 3,444,538 3,917,246
Supplemental schedule of cash flow information:    
Interest paid 66,295 94,691
Income taxes paid 7,381
Supplemental schedule of noncash investing and financing activities:    
Preferred dividends declared, not paid $ 57,611 $ 57,611