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Note H - Patents (Details Textual) - USD ($) |  | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jul. 13, 2017 | Sep. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018
Amortization of Intangible Assets, Total |  |  | $ 53,013 | $ 814,681
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months |  |  | 53,000 |
Finite-Lived Intangible Assets, Amortization Expense, Year Two |  |  | 53,000 |
Finite-Lived Intangible Assets, Amortization Expense, Year Three |  |  | 53,000 |
Finite-Lived Intangible Assets, Amortization Expense, Year Four |  |  | 47,000 |
Finite-Lived Intangible Assets, Amortization Expense, Year Five |  |  | 33,000 |
Impairment of Intangible Assets, Finite-lived |  |  |  | 1,539,794
Patents [Member] |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 3 years |  |  |
Amortization of Intangible Assets, Total |  |  | $ 53,013 | $ 814,681
Finite-lived Intangible Assets Acquired | $ 2,639,000 |  |  |
Patents [Member] | Minimum [Member] |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  | 3 years |  |
Patents [Member] | Maximum [Member] |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  | 20 years |  |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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