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Note 7 - Stockholders' Equity (Deficit) (Tables)

6 Months Ended

Jun. 30, 2016

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%

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

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

- 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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