Note 5 - Stock Option Plans (Tables)

6 Months Ended

Jun. 30, 2016

Notes Tables

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

	Number of Options		Weighted Averaged Exercise Price $		Weighted Average Remaining Contractual Life (Years)		Aggregate Intrinsic Options Value $
Outstanding, January 1, 2016		1,419,436		1.56		2.78		1,220,338
Granted		348,908		1.72		4.85		-
Exercised		-		-		-		-
Forfeited or expired		-		-		-		-
Outstanding, June 30, 2016		1,768,344		1.59		2.74		2,099,051
Exercisable, June 30, 2016		1,170,718		1.36		2.43		1,721,587

	Number of Options		Weighted Averaged Exercise Price $		Weighted Average Remaining Contractual Life (Years)		Aggregate Intrinsic Options Value $
Outstanding, January 1, 2016		8,333		2.70		4.83		-
Granted		200,000		2.55		1.59		-
Expired		-		-		-		-
Exercised		-		-		-		-
Outstanding, June 30, 2016		208,333		2.56		4.58		50,833
Exercisable, June 30, 2016		2,777		2.70		4.33		-