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Note 7 - Intangible Assets | 12 Months Ended
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Dec. 31, 2025
Notes to Financial Statements |
Intangible Assets Disclosure [Text Block] | 7. INTANGIBLE ASSETS Intangible assets were valued using the relief from royalty method and were amortized to costs of goods sold over their useful lives, which was estimated to be 10 years. Intangible assets as of December 31, 2025 consisted of the following:
|  | Gross |  |  |  |  |  |  |  |  |
|  | Carrying |  |  | Accumulated |  |  | Net Book |
|  | Value |  |  | Amortization |  |  | Value |
Developed technology |  | $ | 184,100 |  |  | $ | (184,100 | ) |  | $ | — |
Customer relationships |  |  | 1,300 |  |  |  | (1,300 | ) |  |  | — |
Non-compete agreements |  |  | 5,640 |  |  |  | (5,640 | ) |  |  | — |
Total |  | $ | 191,040 |  |  | $ | (191,040 | ) |  | $ | — |
Intangible assets as of December 31, 2024 consisted of the following:
|  | Gross |  |  |  |  |  |  |  |  |
|  | Carrying |  |  | Accumulated |  |  | Net Book |
|  | Value |  |  | Amortization |  |  | Value |
Developed technology |  | $ | 184,100 |  |  | $ | (165,690 | ) |  | $ | 18,410 |
Customer relationships |  |  | 1,300 |  |  |  | (1,170 | ) |  |  | 130 |
Non-compete agreements |  |  | 5,640 |  |  |  | (5,076 | ) |  |  | 564 |
Total |  | $ | 191,040 |  |  | $ | (171,936 | ) |  | $ | 19,104 |
Amortization expense on intangible assets was $19,104 during both of the years ended December 31, 2025 and 2024.

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