Note 4 - Stock-based Compensation (Tables)

6 Months Ended

Jun. 30, 2015

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 June 30, 2015		274,500	$	1.76		6.0	$	345,975
Vested and exercisable at June 30, 2015		254,500	$	1.72		5.8	$	320,055