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Note J - Patents (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	2017						2016
	Cost		Accumulated Amortization		Net		Cost		Accumulated Amortization		Net
Patents-foundation intellectual property	1,377,863		(787,821	)	590,042		1,377,543		(717,086	)	660,457
Epidural-Apad acquired patents	2,639,647		(439,941	)	2,199,706		-		-		-
Total	4,017,510		(1,227,762	)	2,789,748		1,377,543		(717,086	)	660,457

X

- Definition

Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.

+ References

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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- References

No definition available.

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