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Note O - Stock Options (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 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 March 31,
		2013				2012
Selling, general and administrative		$	11,121			$	2,223
Research, development and engineering			1,326				18,518
		$	12,447			$	20,741

		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.

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-Publisher FASB

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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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.

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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).

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