STOCKHOLDERS' EQUITY (Tables)

12 Months Ended

Dec. 31, 2012

Stockholders' Equity Note [Abstract]

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

Stock option activity under the 1998, 1999, 2001, 2003 and 2006 Stock Option Plans during the periods indicated below is as follows:

	Number of Shares Subject to Issuance			Weighted- average Exercise Price		Weighted- average Remaining Contractual Term	Aggregate Intrinsic Value
Outstanding at December 31, 2010		1,972,203		$	1.62	2.86 years
Granted		-			-
Forfeited or expired		(292,820	)		1.97
Exercised		(435,123	)		0.52		$	326,172
Outstanding at December 31, 2011		1,244,260		$	1.93	2.29 years
Granted		-			-
Forfeited or expired		(235,862	)		3.10
Exercised		(261,763	)		0.50		$	348,352
Outstanding at December 31, 2012		746,635		$	2.06	1.66 years	$	32,217
Exercisable at December 31, 2012		711,135		$	2.08	1.65 years	$	32,217

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

The following is a summary of stock options as of December 31, 2012:

		Options Outstanding							Options Exercisable
Range of  Exercise Prices		Number of Options		Weighted- average Remaining Life			Weighted- average Exercise Price		Number of Options		Weighted- average Exercise Price
	$0.46 to $1.00		185,930		2.52	years	$	0.50		185,930	$	0.50
	$1.01 to $3.00		452,355		2.31			4.73		416,855		4.44
	$3.01 to $5.00		25,000		0.70			0.49		25,000		0.49
	$5.01 to $6.80		83,350		1.15			2.54		83,350		2.54
			746,635		1.66	years	$	2.06		711,135	$	2.08

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

Share based compensation expense for the years ended December 31, 2012 and 2011 is as follows:

	Years Ended December 31,
Compensation cost recognized:	2012		2011
Stock options	$	52,677	$	3,991
Restricted stock		0		29,896
	$	52,677	$	33,887

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

Share based compensation is included in operating expenses as follows:

	Years Ended December 31,
	2012		2011
Selling	$	9,216	$	(30,382	)
General and administrative		16,788		65,419
Research and development		26,673		(1,150	)
	$	52,677	$	33,887