Note J - Stock Option Plans (Tables)

12 Months Ended

Dec. 31, 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, 2015		1,472,130			0.79		2.88		1,430,231
Exercisable, December 31, 2015		1,036,185			1.10		2.75		1,244,074
Granted		157,306			3.01		4.18
Exercised during 2015		(200,000	)		1.00		-		-
Forfeited or expired		(10,000	)		1.00		-		-
Outstanding December 31, 2015		1,419,436			1.56		2.79		1,220,338
Exercisable, December 31, 2015		1,041,680			1.29		2.41		1,135,819
Granted		520,337			1.79		4.38		-
Exercised during 2016		(327,778	)		.75		-		-
Forfeited or expired		(100,000	)		2.35		-		-
Outstanding December 31,2016		1,511,995			1.74		2.97		102,605
Exercisable, December 31, 2016		1,054,202			1.65		2.51		102,605

	Number of Options			Weighted Averaged Exercise Price $		Weighted Average Remaining Contractual Life (Years)		Aggregate Intrinsic Options Value $
Outstanding, January 1, 2015		16,666			1.27		0.62		17,166
Exercisable, January 1, 2015		16,666			1.27		0.62		17,166
Granted		8333			2.70		4.83		22,499
Exercised		(16,666	)		1.27		-		-
Outstanding, December 31, 2015		8,333			2.70		4.83		-
Exercisable, December 31, 2015		2,777			2.70		4.83		-
Granted		216,666			2.53		-		-
Exercised		-			-		-		-
Outstanding, December 31, 2016		224,999			2.53		5.32		-
Exercisable, December 31, 2016		14,734			2.72		4.36		-