Note J - Stock Option Plans (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Share-based Payment Arrangement, Option, Activity [Table Text Block]

	Number of Options			Weighted Averaged Exercise Price $		Weighted Average Remaining Contractual Life (Years)		Aggregate Intrinsic Options Value $
Options outstanding December 31, 2017		1,985,335			1.74		3.04		25,160
Granted		-			-		-		-
Exercised during 2018		-			-		-		-
Forfeited or expired		(315,114	)		1.50		-		-
Options outstanding December 31, 2018		1,670,221			1.71		2.40		-
Exercisable, December 31, 2018		1,317,632			1.79		2.15		-
Granted		-			-		-		-
Exercised during 2019		-			-		-		-
Forfeited or expired		(457,779	)		1.96		-		-
Options outstanding December 31, 2019		1,212,442			1.61		2.00		114,570
Exercisable, December 31, 2019		1,117,834			1.65		1.90		88,982

	Number of Options			Weighted Averaged Exercise Price $		Weighted Average Remaining Contractual Life (Years)		Aggregate Intrinsic Options Value $
Options outstanding December 31, 2017		224,999			2.53		4.32		-
Granted		8,333			0.75		4.33
Exercised during 2018		-			-		-		-
Forfeited or expired		(200,000	)		2.55		-
Options outstanding December 31, 2018		33,332			1.87		2.94
Exercisable, December 31, 2018		27,777			2.10		2.66
Granted		16,666			0.55		4.43		13,999
Exercised during 2019		-			-		-		-
Forfeited or expired		-			-		-
Options outstanding December 31, 2019		49,998			1.43		2.94		19,333
Exercisable, December 31, 2019		36,109			1.76		2.44		8,222