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Note 7 - Patents (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

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

		September 30, 2019
		Cost				Impairment				Accumulated Amortization				Net
Patents-foundation intellectual property		$	1,377,863			$	-			$	(982,349	)		$	395,514
Total		$	1,377,863			$	-			$	(982,349	)		$	395,514

		December 31, 2018
		Cost				Impairment				Accumulated Amortization				Net
Patents-foundation intellectual property		$	1,377,863			$	-			$	(942,590	)		$	435,273
Epidural-Apad acquired patents			2,639,647				(1,539,794	)			(1,099,853	)			-
Total		$	4,017,510			$	(1,539,794	)		$	(2,042,443	)		$	435,273

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://fasb.org/us-gaap/role/ref/legacyRef
-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://fasb.org/us-gaap/role/ref/legacyRef
-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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X

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration