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Note R - Equity (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Warrants Valuation Assumptions [Table Text Block]

		Year ended December 31,
		2021				2020
Weighted average Risk free interest rate			-	%			0.33	%
Weighted average price		$	-			$	9.25
Weighted average exercise period			-				5
Weighted average Volatility of stock price			-	%			110	%

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

		Total Warrants				Weighted average exercise price				Weighted average remaining life (in years)				Aggregate intrinsic value
Outstanding, as of December 31, 2019			423,559				12.80				3.94				—
Granted – public offering			4,264,313				5.20
Granted – prefunded warrants from the public offering			512,500				0.08
Granted – other			434,375				9.25
Increase due to trigger of anti-dilution provision feature			27,244				5.20
Exercised – public offering			(284,538	)			5.20
Exercised – prefunded warranted from the public offering			(512,500	)			0.08
Exercised – other			(121,500	)			12.00
Forfeited			—				—
Expired			(54,066	)			6.86
Outstanding, as of December 31, 2020			4,689,387				6.04				4.48				—
Granted			—				—
Exercised			—				—
Forfeited			—				—
Expired			—				—
Outstanding, as of December 31, 2021			4,689,387				6.04				3.48				—

X

- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of warrants.

+ References

No definition available.

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- Definition

Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 50
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775

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