Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2015

Equity [Abstract]

Assumptions in Computing Option Fair Value

The fair value of all options granted during the years ended December 31, 2015 and 2014 was determined using the following assumptions:

Expected volatility	65% - 90%
Risk free interest rate	1.69% - 1.76%
Expected term (years)	5.0
Dividend yield	0%

Summary of Activity Related to Options Granted

Stock option activity is as follows:

	Number of Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Life	Aggregate Fair Value
Outstanding December 31, 2013		4,045,324		$	1.85	2.05 Years	$	7,483,849
Granted		252,000		$	3.80
Exercised		(1,138,331	)	$	0.78
Forfeited		(14,000	)	$	2.43
Expired
Outstanding December 31, 2014		3,144,993		$	2.39	1.48 Years	$	7,516,533
Granted		100,000		$	0.60
Exercised		(218,010	)	$	1.50
Forfeited
Expired		(889,983	)	$	2.07
Outstanding December 31, 2015		2,137,000		$	2.53	.75 Years	$	5,406,610
Exercisable at, December 31, 2015		1,856,001		$	2.64		$	4,899,843
Unvested at December 31, 2015		280,999