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Note 7 - Stockholders' Equity (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2016

Dec. 31, 2015

Notes Tables

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

Expected dividend yield			0%
Risk free interest rate		1.01%	-	2.43%
Expected life in years			5
Expected volatility		85%	-	129%

		2015				2014
Expected dividend yield			0%				0	%
Risk free interest rate		1.66%	-	2.43%			2.30	%
Expected life in years			10				10
Expected volatility			85%				85	%

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

		Number				Exercise Price				Weighted Average Exercise Price
Stock Options
Outstanding January 1, 2016			1,707,744							$	0.84
Granted			1,301,084			$	1.25
Expired			(416,599	)
Outstanding June 30, 2016			2,592,229							$	1.04

						Exercise				Weighted Average
		Number				Price				Exercise Price
Stock Options
Outstanding January 1, 2014			977,744							$	0.60
Granted			240,000			$	1.00
Outstanding December, 31, 2014			1,217,744							$	0.68
Granted			490,000			$	1.25
Outstanding December, 31, 2015			1,707,744							$	0.84

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

		Number				Exercise Price				Weighted Average Exercise Price
Warrants
Outstanding January 1, 2016			3,403,367							$	1.05
Granted			423,291			$	1.25
Outstanding June 30, 2016			3,826,658							$	1.07

						Exercise				Weighted Average
		Number				Price				Exercise Price
Warrants
Outstanding January 1, 2014			3,153,367							$	1.01
Granted			-			$	-
Outstanding December, 31, 2014			3,153,367							$	1.00
Granted			250,000			$	1.25
Outstanding December, 31, 2015			3,403,367							$	1.05

X

- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(i))
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