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Note H - Patents | 12 Months Ended
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Dec. 31, 2022
Notes to Financial Statements |
Goodwill and Intangible Assets Disclosure [Text Block] | NOTE H — PATENTS
|  | December 31, 2022 |  |  |  |  |
|  | Cost |  |  | Accumulated Amortization |  |  | Net |
Patents-foundation intellectual property |  | $ | 1,377,863 |  |  | $ | (1,149,907 | ) |  | $ | 227,956 |
Total |  | $ | 1,377,863 |  |  | $ | (1,149,907 | ) |  | $ | 227,956 |
|  | December 31, 2021 |  |  |  |  |
|  | Cost |  |  | Accumulated Amortization |  |  | Net |
Patents-foundation intellectual property |  | $ | 1,377,863 |  |  | $ | (1,100,244 | ) |  | $ | 277,619 |
Total |  | $ | 1,377,863 |  |  | $ | (1,100,244 | ) |  | $ | 277,619 |
Patents are amortized utilizing the straight-line method over estimated useful lives ranging from 3 to 20 years. Amortization expense was $49,663 and $53,011 for the years ended December 31, 2022 and 2021 , respectively. The annual amortization expense expected to be recorded for existing intangibles assets for the years 2023 through 2027 is approximately $52,000, $34,000, $28,000, $28,000 and $86,000, respectively.

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI https://asc.fasb.org/topic&trid=2144416 + Details
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