Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 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 years ended December 31, 2013 and 2012 are as follows:

	Year ended December 31,
	2013	2012
Exercise price	$1.64 - $1.74	$1.69 - $2.47
Expected dividends	0%	0%
Expected volatility	141% - 154%	108% - 174%
Risk fee interest rate	0.77% - 2.54%	0.37% - 1.98%
Expected life of option	5 – 10 years	5 - 10 years
Expected forfeitures	0%	0%

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

A summary of stock option activities for the year ended December 31, 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		$	661,000
Forfeited		(225,413)	$	2.37
Balance - December 31, 2012		4,453,746	$	1.78	6.43 years	$	1,308,000
Granted		222,500	$	1.69
Exercised		(291,666)	$	0.79		$	71,000
Forfeited		(475,000)	$	2.30
Balance - December 31, 2013 - outstanding		3,909,580	$	1.78	5.59 years	$	785,000
Balance - December 31, 2013 - exercisable		3,153,537	$	1.69	5.24 years	$	773,000
Grant date fair value of options granted - 2013			$	350,000
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

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

The options outstanding and exercisable at December 31, 2013 are as follows:

Options Outstanding						Options Exercisable
			Weighted		Weighted Average			Weighted		Weighted Average
Range of			Average		Remaining			Average		Remaining
Exercise Price	Options		Exercise Price		Contractual Life	Options		Exercise Price		Contractual Life
$0.09 - $2.00		2,093,196	$	1.29	4.73 years		1,901,737	$	1.25	4.64 years
$2.01 - $3.00		1,770,560		2.28	6.65 years		1,205,976		2.26	6.25 years
$3.01 - $6.00		45,824		5.24	3.62 years		45,824		5.24	3.62 years
$0.09 - $6.00		3,909,580	$	1.78	5.59 years		3,153,537	$	1.69	5.24 years

The options outstanding and exercisable at December 31, 2012 are as follows:

Options Outstanding						Options Exercisable
			Weighted		Weighted Average			Weighted		Weighted Average
Range of			Average		Remaining			Average		Remaining
Exercise Price	Options		Exercise Price		Contractual Life	Options		Exercise Price		Contractual Life
$0.09 - $2.00		2,162,362	$	1.78	5.76 years		1,801,187	$	1.14	5.52 years
$2.01 - $3.00		2,212,227		2.26	7.15 years		1,011,533		2.17	6.14 years
$3.01 - $6.00		79,157		4.87	4.49 years		79,157		4.87	4.49 years
$0.09 - $6.00		4,453,746	$	1.78	6.43 years		2,891,877	$	1.60	5.71 years

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

The following is a summary of the Company’s non-vested stock options at December 31, 2013:

			Weighted Average
	Unvested		Grant
	Stock Options		Date Fair Value
Non-vested - December 31, 2012		1,561,869	$	2.11
Granted		222,500		1.69
Vested/Exercised		(883,882)		1.93
Forfeited/Cancelled		(144,444)		2.27
Non-vested - December 31, 2013		756,043	$	2.17
Weighted average remaining period for vesting		1.30 years

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The assumptions used by the Company are summarized in the following table:

Exercise price	$	2.20
Expected dividends		0	%
Expected volatility		110	%
Risk free interest rate		0.26	%
Expected life of warrant		2 years

The assumptions used by the Company are summarized in the following table:

Exercise price	$	1.14
Expected dividends		0	%
Expected volatility		174	%
Risk free interest rate		0.71	%
Expected life of warrant		5 years

Schedule of Warrant Activity [Table Text Block]

A summary of warrant activity for the Company for the year ended December 31, 2012 and for the year ended December 31, 2013 is as follows:

			Weighted Average
	Number of Warrants		Exercise Price
Balance at December 31, 2011		3,259,186	$	1.95
Granted		985,855		1.71
Exercised		(1,768,167)		1.11
Forfeited		(844,373)		3.32
Balance as December 31, 2012		1,632,501		1.99
Granted		-		-
Exercised		-		-
Forfeited		-		-
Balance as December 31, 2013		1,632,501	$	1.99

Schedule of Warrant Outstanding and Exercisable [Table Text Block]

A summary of all outstanding and exercisable warrants as of December 31, 2013 is as follows:

						Weighted Average
Exercise		Warrants		Warrants		Remaining		Aggregate
Price		Outstanding		Exercisable		Contractual Life		Intrinsic Value
$	1.14		100,000		100,000		3.09 years	$	43,000
$	1.32		18,182		18,182		2.00 years	$	4,000
$	1.60		635,855		635,855		3.82 years	$	-
$	2.20		250,000		50,000		0.20 years	$	-
$	2.22		517,257		517,257		2.91 years	$	-
$	3.30		61,207		61,207		1.41 years	$	-
$	3.75		50,000		50,000		2.13 years	$	-
$	1.99		1,632,501		1,432,501		2.77 years	$	47,000