Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2013

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

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

The Black-Scholes assumptions used in the three and nine months ended September 30, 2013 and 2012 are as follows:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2013	2012	2013			2012
Exercise price	-	$1.96- $2.27	$	1.74		$1.70- $2.47
Expected dividends	-	0%		0	%	0%
Expected volatility	-	153%		148	%	108% - 174%
Risk free interest rate	-	0.63% - 0.65%		0.77	%	0.37% - 1.98%
Expected life of option	-	5 years – 10 years		5 years		5 years – 10 years
Expected forfeitures	-	0%		0	%	0%

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

A summary of stock option activities as of September 30, 2013, and for the year ended December 31, 2012, is as follows:

					Weighted
					Average
			Weighted		Remaining		Aggregate
			Average Exercise		Contractual		Intrinsic
	Options		Price		Life		Value
Balance - December 31, 2011		2,979,010	$	1.34		6.01 years	$	-
Granted		2,075,000	$	2.21
Exercised		(374,851)	$	0.34
Forfeited		(225,413)	$	2.37
Balance - December 31, 2012		4,453,746	$	1.78		6.43 years	$	1,308,000
Granted		117,500	$	1.74
Exercised		(291,666)	$	0.79
Forfeited		(475,000)	$	2.31
Balance – September 30, 2013 - outstanding		3,804,580	$	1.79		5.76 years	$	932,000
Balance – September 30, 2013 - exercisable		2,902,307	$	1.67		5.27 years	$	903,000
Grant date fair value of options granted - 2013			$	185,000
Weighted average grant date fair value - 2013			$	1.57
Grant date fair value of options granted - 2012			$	4,468,000
Weighted average grant date fair value - 2012			$	2.15