Note 4 - Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2016

Notes Tables

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block]

	# of Shares		Wgt . Avg . Exercise Price		Wgt . Avg . Remaining Contractual Life in Years		Aggregate Intrinsic Value
Outstanding at September 30, 2016		304,500	$	2.06		5.5	$	495,300
Vested and exercisable at September 30, 2016		256,500	$	1.76		4.7	$	489,240