Note N - Equity (Tables)

12 Months Ended

Dec. 31, 2018

Schedule of Preferred Stock and Accrued Dividends [Table Text Block]

	Series A-1			Accrued Dividends

Balance – January 1, 2017		90,000		$	270,000
Accrual of dividends – Q1 2017					135,000
Accrual of dividends – Q2 2017					135,000
Accrual of dividends – Q3 2017					135,000
Conversion into common stock – September 2017		-			(540,000	)
Conversion into common stock – October 2017		(27,404	)		-
Accrual of dividends – Q4 2017					101,658
Balance – December 31, 2017		62,596		$	236,658
Accrual of dividends – Q1 2018					93,894
Conversion into common stock – April 2018		(39,088	)		(330,552	)
Accrual of dividends – Q2 2018 (until final conversion)					25,463
Conversion into common stock – May 2018		(23,508	)		(25,463	)
Balance – December 31, 2018		-		$	-

	Series B-1			Accrued Dividends

Balance – January 1, 2017		105,000		$	131,250
Accrual of dividends – Q1 2017					65,625
Accrual of dividends – Q2 2017					65,625
Accrual of dividends – Q3 2017					65,625
Accrual of dividends – Q4 2017					65,625
Balance – December 31, 2017		105,000			393,750
Conversion into common stock – March 2018		(60,420	)		(417,084	)
Accrual of dividends – Q1 2018					62,268
Accrual of dividends – Q2 2018 (until final conversion)					16,408
Conversion into common stock – May 2018		(44,580	)		(55,342	)
Balance – December 31, 2018		-		$	-

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, 2016		1,260,080			3.84		2.78

Granted		138,889			3.60
Exercised		—			—
Forfeited		—			—
Expired		—			—
Outstanding, as of December 31, 2017		1,398,969			3.81		2.06		—
Granted		1,035,000			1.50
Increase due to trigger of anti-dilution provision feature		1,492,848			1.50
Exercised		—			—
Forfeited		—			—
Expired		(145,841	)		6.00
Outstanding, as of December 31, 2018		3,780,976			1.59		2.05		—
Vested or expected to vest at December 31, 2018		3,780,976			1.59		2.05		—
Exercisable at December 31, 2018		3,780,976			1.59		2.05		—

- 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.

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