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Note 12 - Stockholders' (Deficit) (Tables)

12 Months Ended

Dec. 31, 2018

Schedule Of Dividends In Arrears [Table Text Block]

	Cumulative arrearage as of				Cumulative arrearage per share as of
	December 31,				December 31,
Series of preferred stock	2018		2017		2018		2017
Series B	$	609,887	$	609,887	$	3.05	$	3.05
Series C		1,472,093		1,472,093	$	4.37	$	4.37
Total preferred stock arrearage	$	2,081,980	$	2,081,980

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

December 31, 2018

Warrants outstanding

Warrants exercisable

Weighted average

Range of exercise price

Number outstanding

remaining contractual life

exercise price

Number exercisable

exercise price

$0.25

–

$0.60

22,020,000

1.06

0.45

22,020,000

0.45

December 31, 2017

Warrants outstanding

Warrants exercisable

Weighted average

Range of exercise price

Number outstanding

remaining contractual life

exercise price

Number exercisable

exercise price

$0.25

–

$0.60

27,020,000

1.84

0.42

27,020,000

0.42

Share-based Compensation, Activity [Table Text Block]

	Weighted average grant date fair value
	for the year ended December 31,
	2018		2017
Stock options granted during the period	$	0.23	$	0.21

Stock options vested during the period	$	0.22	$	0.20

Stock options forfeited during the period	$	0.19	$	0.13

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	Foreign currency translation			Accumulated other comprehensive income/(loss)
Balance at December 31, 2016	$	(410,505	)	$	(410,505	)
2017 Activity		13,268			13,268
Balance at December 31, 2017		(397,237	)		(397,237	)
2018 Activity		(39,268	)		(39,268	)
Balance at December 31, 2018	$	(436,505	)	$	(436,505	)

Warrant [Member]

Notes Tables

Share-based Compensation, Activity [Table Text Block]

Warrants
Balance at December 31, 2016	27,860,000
Issued	-0-
Exercised	-0-
Expired/forfeited	(840,000	)
Balance at December 31, 2017	27,020,000
Issued	-0-
Exercised	(4,000,000	)
Expired/forfeited	(1,000,000	)
Balance at December 31, 2018	22,020,000
Warrants exercisable at December 31, 2018	22,020,000

Weighted average fair value of warrants granted during 2018	n/a

- 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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