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Note 9 - Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Share-based Compensation, Activity [Table Text Block]

		Number of Shares				Weighted Average Exercise Price
Outstanding at December 31, 2017			7,024,275			$	0.29
Granted			--				--
Exercised			--				--
Forfeited or expired			(68,334	)			0.06
Outstanding at March 31, 2018			6,955,941			$	0.29
Exercisable at March 31, 2018			1,960,284			$	0.90

X

- Definition

Tabular disclosure for share-based compensation plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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