Note 3 - Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

Notes Tables

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

				Weighted
				Average
				Exercise Price
	Shares			Per Option
Options outstanding, December 31, 2016		1,065,000		$	2.06
Granted to employees and non-employee directors		25,000			3.66
Exercised		(70,001	)		1.78
Canceled/expired/forfeited		(20,000	)		1.58
Options outstanding, Septermber 30, 2017		999,999			2.13
Options exercisable, September 30, 2017		330,000			1.96