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v3.26.1

Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
Net income | $ 2,105,738 | $ 3,250,875
Depreciation and amortization | 108,200 | 95,885
Net gain on marketable securities | (34,359) | (26,989)
Allowance for credit losses | 2,827 | (2,330)
Change in allowance for obsolete inventory | (792) | (14,208)
Deferred income taxes | 382,643 | (124,467)
Accounts receivable | 161,261 | (140,714)
Inventories | (54,976) | (214,281)
Prepaid expenses and other current assets | (35) | (16,096)
Prepaid income taxes | (146,146) | (2,797)
us-gaap_IncreaseDecreaseInAccountsPayable | 55,788 | 290,554
Accrued expenses | (302,985) | 104,889
Deferred revenue | 12,177 | (15,498)
Net cash provided by operating activities | 1,966,819 | 3,466,251
Cash flows from investing activities: |  |
Acquisition of property, plant, and equipment | (58,995) | (433,077)
Proceeds from sale of marketable securities | (12,941,872) | (8,459,318)
Purchase of marketable securities | 13,176,210 | 1,815,000
Net cash provided by (used in) investing activities | 175,343 | (7,077,395)
Cash flows from financing activities: |  |
Dividends paid | (2,766,720) | (2,756,323)
Net cash used in financing activities | (2,766,720) | (2,756,323)
Net (decrease) increase in cash and cash equivalents | (624,558) | (6,367,467)
Cash and cash equivalents at beginning of period | 1,875,655 | 8,243,122
Cash and cash equivalents at end of period | 1,251,097 | 1,875,655
Supplemental disclosure of cash flow information |  |
Taxes paid | 300,780 | 1,050,795
Supplemental disclosure of non-cash items: |  |
Dividends payable | $ 163 | $ 268

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