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Note O - Stock Options (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2013

Dec. 31, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

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

		Number of Options												Weighted average exercise				Weighted average remaining life			Aggregate intrinsic
		1999 Plan			2004 Plan			Non Plan			Total			price				(in years)			value
Outstanding, as of December 31, 2010		500,000			2,580,689			1,329,841			4,410,530			$	0.25
Granted		—			845,000			—			845,000			0.14
Exercised		—			—			—			—			—
Forfeited		—			(210,000	)		—			(210,000	)		0.14
Expired		—			(383,853	)		(257,265	)		(641,118	)		0.36
Outstanding, as of December 31, 2011		500,000			2,831,836			1,072,576			4,404,412			$	0.22
Granted		—			600,000			—			600,000			0.09
Exercised		—			—			—			—			—
Forfeited		—			(164,623	)		(365,378	)		(530,001	)		0.09
Expired		—			(504,941	)		(707,198	)		(1,212,139	)		0.30
Outstanding, as of December 31, 2012		500,000			2,762,272			—			3,262,272			0.16				4.21			$	2,325
Vested or expected to vest at December 31, 2012											2,972,404			0.16				4.04			$	2,325
Exercisable at December 31, 2012											2,230,594			0.18				3.43			$	2,325

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block]

					Options Outstanding							Options Exercisable
Range of exercise prices					Number of shares		Weighted average exercise price			Weighted average remaining  life (in years)		Number exercisable		Weighted average exercise price
	$ 0.08	-	0.21		2,852,272		$	0.11		4.23		1,820,594		$	0.12
	0.22	-	0.40		70,000		0.40			4.02		70,000		0.40
	0.41	-	0.68		340,000		0.46			4.02		340,000		0.46
	$ 0.07	-	0.68		3,262,272							2,230,594

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

		Three Months Ended September 30,				Three Months Ended September 30,
		2013				2012
Selling, general and administrative		$	19,294			$	5,637
Research, development and engineering			2,961				1,308
		$	22,255			$	6,945

		Nine Months Ended September 30,				Nine Months Ended September 30,
		2013				2012
Selling, general and administrative		$	50,571			$	19,022
Research, development and engineering			11,701				26,032
		$	62,272			$	45,054

		Year ended December 31,
		2012				2011
Selling, general and administrative		$	22,502			$	12,054
Research, development and engineering			27,340				45,126
		$	49,842			$	57,180

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Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

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-Section S99

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-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809



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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

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Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ 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 (c)(1)

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Tabular disclosure of the number of fully vested share options (or share units) and share options expected to vest at the date of the latest statement of financial position, weighted-average exercise price (or conversion ratio), aggregate intrinsic value (except for nonpublic entities), and weighted-average remaining contractual term for both options (or share units) currently outstanding and options (or share units) exercisable (or convertible).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 718

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-Paragraph 2

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