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Note L - Stock Option Plans (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

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

	Number of Options		Wei ghted Averaged Exercise Price $		Weighted Average Remaining Contractual Life (Years)		Aggregate Intrinsic Options Value $
Options outstanding January 1, 2016	1,419,436		1.56		2.79		1,220,338
Exercisable, January 1, 2016	1,041,680		1.29		2.41		1,135,819
Granted	520,337		1.79		4.38
Exercised during 2016	(327,778	)	0.75		-		-
Forfeited or expired	(100,000	)	2.35		-		-
Options 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
Granted	1,006,741		1.82		4.69		25,610
Exercised during 2017	(83,333	)	0.75		-		-
Forfeited, cancelled, or expired	(1,250,068	)			-		-
Options outstanding December 31, 2017	1,985,325		1.74		3.04		25,160
Exercisable, December 31, 2017	1,317,4416		1.84		2.46		8,537

	Number of Options		Weighted Averaged Exercise Price $		Weighted Average Remaining Contractual Life (Years)		Aggregate Intr insic Options Value $
Outstanding, January 1, 2016	8,333		2.70		4.83
Exercisable, January 1, 2016	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		-
Granted 2017	-		-		-		-
Exercised 2017	-		-		-		-
Outstanding, December 31, 2017	224,999		2.52		3.51		-
Exercisable, December 31, 2017	23,067		2.22		4.38		-

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		2017			2016
Volatility			81.23% -97.24%			134.53%- 194.34%
Risk-free interest			1.4%- 2.2%			.04%-1.47%
Expected Life		2-5 years			5 years
Dividend yield			0			0
Forfeiture Rate			6			6

X

- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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