Note H - Patents - Summary of Patents (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Patents, cost	$ 1,377,863	$ 4,017,510
Patents, impairment		1,539,794
Patents, accumulated amortization	(995,603)	2,042,443
Patents, net	382,260	435,273
Patents, cost	1,377,863	4,017,510
Patents, impairment		(1,539,794)
Patents, accumulated amortization	995,603	(2,042,443)
Patents, net	382,260	435,273
Foundation Intellectual Property Patents [Member]
Patents, cost	1,377,863	1,377,863
Patents, impairment
Patents, accumulated amortization	(995,603)	942,590
Patents, net	382,260	435,273
Patents, cost	1,377,863	1,377,863
Patents, impairment
Patents, accumulated amortization	995,603	(942,590)
Patents, net	$ 382,260	435,273
Epidural-Apad Patents [Member]
Patents, cost		2,639,647
Patents, impairment		(1,539,794)
Patents, accumulated amortization		(1,099,853)
Patents, net
Patents, cost		2,639,647
Patents, impairment		1,539,794
Patents, accumulated amortization		1,099,853
Patents, net

The accumulated amount of impairment loss recognized resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

No definition available.

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
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