Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2012

Stockholders' Equity Note [Abstract]

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

During the years ended December 31, 2012, 2011 and 2010, the Company granted stock options to employees and non-employee directors as follows:

	For the years ended December 31,
	2012		2011		2010
Options granted during period		2,136,000		1,190,500		861,000
Weighted average exercise price	$	3.26	$	6.91	$	3.10
Weighted average grant date fair value	$	2.21	$	4.60	$	2.24

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

summary of the Company’s stock option activity and related information since inception is as follows:

	Available			Activity/			Wtd Avg
	For Grant			Balance			Exercise Price
Establish 2002 Option Plan		1,085,648			-		$	-
Balance at December 31, 2002		1,085,648			-
2003 Activity		-			-		$	-
Balance at December 31, 2003		1,085,648			-
Cancel 2002 Stock Option Plan		(1,085,648	)		-		$	-
Establish 2004 Stock Option Plan		1,085,648			-		$	-
2004 Option grants		(363,835	)		363,835		$	0.56
Balance at December 31, 2004		721,813			363,835
2005 Plan Amendment		410,784			-
2005 Option grants		(761,451	)		761,451		$	2.66
2005 Cancellations		58,683			(58,683	)	$	2.62
2005 Exercises		-			(14,663	)	$	0.07
Balance at December 31, 2005		429,829			1,051,940
2006 Plan Amendments		1,148,568			-
2006 Option grants		(668,085	)		668,085		$	3.61
2006 Cancellations		8,802			(8,802	)	$	2.62
2006 Exercises		-			(78,683	)	$	0.06
Balance at December 31, 2006		919,114			1,632,540
2007 Plan Amendments		1,500,000			-
2007 Option grants		(665,500	)		665,500		$	5.72
2007 Exercises		-			(17,868	)	$	0.88
Balance at December 31, 2007		1,753,614			2,280,172
2008 Option grants		(837,500	)		837,500		$	6.11
2008 Cancellations		148,802			(148,802	)	$	4.95
2008 Exercises		-			(94,230	)	$	0.63
Balance at December 31, 2008		1,064,916			2,874,640
2009 Plan Amendments		855,000			-
2009 Option grants		(938,290	)		938,290		$	1.99
Balance at December 31, 2009		981,626			3,812,930
2010 Plan Amendments		1,200,000			-
2010 Option grants		(861,000	)		861,000		$	3.10
2010 Cancellations		12,000			(12,000	)	$	2.93
Balance at December 31, 2010		1,332,626			4,661,930
2011 Plan Amendments		1,200,000			-
2011 Option grants		(1,190,500	)		1,190,500		$	6.91
2011 Cancellations		40,000			(40,000	)	$	5.07
Balance at December 31, 2011		1,382,126			5,812,430
2012 Plan Amendments		3,000,000			-
2012 Option grants		(2,136,000	)		2,136,000		$	3.26
2012 Exercises		-			(35,210	)	$	0.20
2012 Cancellations		-			(837,150	)	$	4.74
Balance at December 31, 2012		2,246,126			7,076,070

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

The table below summarizes options outstanding, options vested and aggregate intrinsic value as of December 31, 2012:

	Outstanding		Vested
Options under the Plan:
Total options		7,076,070		4,667,785
Weighted average remaining contractual life (in years)		6.27		5.06
Weighted average exercise price per share	$	3.97	$	4.14
Aggregate intrinsic value of in-the-money options	$	48,865	$	48,865

Common Stock, Capital Shares Reserved for Future Issuance [Table Text Block]

Common stock reserved for future issuance consists of the following:

	December 31,
	2012		2011
Common stock warrants outstanding		2,023,530		2,875,022
Common stock options outstanding		7,076,070		5,812,430
Common stock options available for future grants		2,246,126		1,382,126
		11,345,726		10,069,578